[Oisf-users] Segfault in 1.4rc1 in Live rule swap

Peter Manev petermanev at gmail.com
Wed Dec 12 19:48:34 UTC 2012


yes, i just tested a live rule swap in daemon mode too without trouble.
So this backtrace should be interesting.

On Wed, Dec 12, 2012 at 8:46 PM, Victor Julien <lists at inliniac.net> wrote:

> Ah, can you install the suricata-dbg package instead of the plain
> "suricata" one?
>
> That should give more info :)
>
> On 12/12/2012 07:18 PM, Fernando Sclavo wrote:
> > Yes! I finally catched a core. I never runned a backtrace on a core
> > dump, so please tell me about any particular detail. A "standard" gdb
> > and backtrace output from the core dump:
> >
> > idsuser at suricata:/$ sudo gdb /usr/bin/suricata core
> > GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04
> > Copyright (C) 2012 Free Software Foundation, Inc.
> > License GPLv3+: GNU GPL version 3 or later
> > <http://gnu.org/licenses/gpl.html>
> > This is free software: you are free to change and redistribute it.
> > There is NO WARRANTY, to the extent permitted by law.  Type "show
> copying"
> > and "show warranty" for details.
> > This GDB was configured as "x86_64-linux-gnu".
> > For bug reporting instructions, please see:
> > <http://bugs.launchpad.net/gdb-linaro/>...
> > Reading symbols from /usr/bin/suricata...(no debugging symbols
> > found)...done.
> >
> > warning: core file may not match specified executable file.
> > [New LWP 5708]
> > [New LWP 5710]
> > [New LWP 5712]
> > [New LWP 5714]
> > [New LWP 5709]
> > [New LWP 5713]
> > [New LWP 5682]
> > [New LWP 5715]
> > [New LWP 5689]
> > [New LWP 5705]
> > [New LWP 5688]
> > [New LWP 5692]
> > [New LWP 5683]
> > [New LWP 5686]
> > [New LWP 5694]
> > [New LWP 5691]
> > [New LWP 5701]
> > [New LWP 5693]
> > [New LWP 5711]
> > [New LWP 5697]
> > [New LWP 5707]
> > [New LWP 5698]
> > [New LWP 5696]
> > [New LWP 5706]
> > [New LWP 5700]
> > [New LWP 5702]
> > [New LWP 5703]
> > [New LWP 5684]
> > [New LWP 5704]
> > [New LWP 5685]
> > [New LWP 5690]
> > [New LWP 5699]
> > [New LWP 5687]
> > [New LWP 5695]
> >
> > warning: Can't read pathname for load map: Input/output error.
> > [Thread debugging using libthread_db enabled]
> > Using host libthread_db library
> "/lib/x86_64-linux-gnu/libthread_db.so.1".
> > Core was generated by `suricata -D -c /etc/suricata/suricata.yaml
> > --af-packet'.
> > Program terminated with signal 11, Segmentation fault.
> > #0  0x000000000048c021 in ?? ()
> > (gdb) backtrace
> > #0  0x000000000048c021 in ?? ()
> > #1  0x0000000000458ceb in ?? ()
> > #2  0x0000000000458e97 in ?? ()
> > #3  0x0000000000510aa8 in ?? ()
> > #4  0x00000000004f2093 in ?? ()
> > #5  0x00000000004f4c0d in ?? ()
> > #6  0x0000000000513a85 in ?? ()
> > #7  0x00007fef526f7e9a in start_thread () from
> > /lib/x86_64-linux-gnu/libpthread.so.0
> > #8  0x00007fef51fbbcbd in clone () from /lib/x86_64-linux-gnu/libc.so.6
> > #9  0x0000000000000000 in ?? ()
> >
> >
> >
> >
> >
> > 2012/12/12 Victor Julien <lists at inliniac.net <mailto:lists at inliniac.net
> >>
> >
> >     On 12/12/2012 07:11 PM, Fernando Sclavo wrote:
> >     > Victor, I haven't a core dump, I don't know why it's not generated,
> >     > because is enabled in sysctl.conf. Instead, an apport crash was
> >     > generated but without coredump inside. i will inverstigate more
> >     this issue.
> >     >
> >     > Suricata is installed from ppa (beta).
> >     >
> >     > Path:
> >     > idsuser at suricata:/var/log/suricata$ which suricata
> >     > /usr/bin/suricata
> >     >
> >     > Command:
> >     > sudo suricata -D -c /etc/suricata/suricata.yaml --af-packet
> >
> >     Maybe you can run without the -D for a while, then it stays in the
> >     foreground. I think in daemon mode it changes work dir.
> >
> >     Which reminds me, could there be a core file in "/", so "/core"?
> >
> >     Wrt apport, what does:
> >     cat /proc/sys/kernel/core_pattern
> >     give you?
> >
> >     Cheers,
> >     Victor
> >
> >
> >     >
> >     > suricata.yaml:
> >     >
> >     > idsuser at suricata:/var/log/suricata$ cat
> /etc/suricata/suricata.yaml
> >     > %YAML 1.1
> >     > ---
> >     >
> >     > # Suricata configuration file. In addition to the comments
> >     describing all
> >     > # options in this file, full documentation can be found at:
> >     > #
> >     >
> >
> https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Suricatayaml
> >     >
> >     >
> >     > # Number of packets allowed to be processed simultaneously.
> >      Default is a
> >     > # conservative 1024. A higher number will make sure CPU's/CPU
> >     cores will be
> >     > # more easily kept busy, but may negatively impact caching.
> >     > #
> >     > # If you are using the CUDA pattern matcher (b2g_cuda below),
> >     different
> >     > rules
> >     > # apply. In that case try something like 4000 or more. This is
> because
> >     > the CUDA
> >     > # pattern matcher scans many packets in parallel.
> >     > max-pending-packets: 65534
> >     >
> >     > # Runmode the engine should use. Please check --list-runmodes to
> >     get the
> >     > available
> >     > # runmodes for each packet acquisition method. Defaults to "autofp"
> >     > (auto flow pinned
> >     > # load balancing).
> >     > runmode: workers
> >     >
> >     > # Specifies the kind of flow load balancer used by the flow pinned
> >     > autofp mode.
> >     > #
> >     > # Supported schedulers are:
> >     > #
> >     > # round-robin       - Flows assigned to threads in a round robin
> >     fashion.
> >     > # active-packets    - Flows assigned to threads that have the
> lowest
> >     > number of
> >     > #                     unprocessed packets (default).
> >     > # hash              - Flow alloted usihng the address hash. More
> >     of a random
> >     > #                     technique. Was the default in Suricata 1.2.1
> and
> >     > older.
> >     > #
> >     > #autofp-scheduler: active-packets
> >     >
> >     > # Run suricata as user and group.
> >     > #run-as:
> >     > #  user: suri
> >     > #  group: suri
> >     >
> >     > # Default pid file.
> >     > # Will use this file if no --pidfile in command options.
> >     > pid-file: /var/run/suricata.pid
> >     >
> >     > # Daemon working directory
> >     > # Suricata will change directory to this one if provided
> >     > # Default: "/"
> >     > #daemon-directory: "/"
> >     >
> >     > # Preallocated size for packet. Default is 1514 which is the
> classical
> >     > # size for pcap on ethernet. You should adjust this value to the
> >     highest
> >     > # packet size (MTU + hardware header) on your system.
> >     > #default-packet-size: 1514
> >     >
> >     > # The default logging directory.  Any log or output file will be
> >     > # placed here if its not specified with a full path name.  This
> can be
> >     > # overridden with the -l command line parameter.
> >     > default-log-dir: /var/log/suricata
> >     >
> >     > # Configure the type of alert (and other) logging you would like.
> >     > outputs:
> >     >
> >     >   # a line based alerts log similar to Snort's fast.log
> >     >   - fast:
> >     >       enabled: yes
> >     >       filename: fast.log
> >     >       append: yes
> >     >       #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram'
> >     >
> >     >   # alert output for use with Barnyard2
> >     >   - unified2-alert:
> >     >       enabled: yes
> >     >       filename: unified2.alert
> >     >
> >     >       # File size limit.  Can be specified in kb, mb, gb.  Just a
> >     number
> >     >       # is parsed as bytes.
> >     >       #limit: 32mb
> >     >
> >     >   # a line based log of HTTP requests (no alerts)
> >     >   - http-log:
> >     >       enabled: yes
> >     >       filename: http.log
> >     >       append: yes
> >     >       extended: yes     # enable this for extended logging
> information
> >     >       #custom: yes       # enabled the custom logging format
> >     (defined by
> >     > customformat)
> >     >       #customformat: "%{%D-%H:%M:%S}t.%z %{X-Forwarded-For}i %H %m
> >     %h %u
> >     > %s %B %a:%p -> %A:%P"
> >     >       #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram'
> >     >
> >     >   # a line based log of TLS handshake parameters (no alerts)
> >     >   - tls-log:
> >     >       enabled: no  # Log TLS connections.
> >     >       filename: tls.log # File to store TLS logs.
> >     >       #extended: yes # Log extended information like fingerprint
> >     >       certs-log-dir: certs # directory to store the certificates
> files
> >     >
> >     >   # a line based log to used with pcap file study.
> >     >   # this module is dedicated to offline pcap parsing (empty output
> >     >   # if used with another kind of input). It can interoperate with
> >     >   # pcap parser like wireshark via the suriwire plugin.
> >     >   - pcap-info:
> >     >       enabled: no
> >     >
> >     >   # Packet log... log packets in pcap format. 2 modes of
> >     operation: "normal"
> >     >   # and "sguil".
> >     >   #
> >     >   # In normal mode a pcap file "filename" is created in the
> >     default-log-dir,
> >     >   # or are as specified by "dir". In Sguil mode "dir" indicates
> >     the base
> >     > directory.
> >     >   # In this base dir the pcaps are created in th directory
> structure
> >     > Sguil expects:
> >     >   #
> >     >   # $sguil-base-dir/YYYY-MM-DD/$filename.<timestamp>
> >     >   #
> >     >   # By default all packets are logged except:
> >     >   # - TCP streams beyond stream.reassembly.depth
> >     >   # - encrypted streams after the key exchange
> >     >   #
> >     >   - pcap-log:
> >     >       enabled:  no
> >     >       filename: log.pcap
> >     >
> >     >       # File size limit.  Can be specified in kb, mb, gb.  Just a
> >     number
> >     >       # is parsed as bytes.
> >     >       limit: 1000mb
> >     >
> >     >       # If set to a value will enable ring buffer mode. Will keep
> >     > Maximum of "max-files" of size "limit"
> >     >       max-files: 2000
> >     >
> >     >       mode: normal # normal or sguil.
> >     >       #sguil-base-dir: /nsm_data/
> >     >       #ts-format: usec # sec or usec second format (default) is
> >     > filename.sec usec is filename.sec.usec
> >     >       use-stream-depth: no #If set to "yes" packets seen after
> >     reaching
> >     > stream inspection depth are ignored. "no" logs all packets
> >     >
> >     >   # a full alerts log containing much information for signature
> >     writers
> >     >   # or for investigating suspected false positives.
> >     >   - alert-debug:
> >     >       enabled: no
> >     >       filename: alert-debug.log
> >     >       append: yes
> >     >       #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram'
> >     >
> >     >   # alert output to prelude (http://www.prelude-technologies.com/)
> >     only
> >     >   # available if Suricata has been compiled with --enable-prelude
> >     >   - alert-prelude:
> >     >       enabled: no
> >     >       profile: suricata
> >     >       log-packet-content: no
> >     >       log-packet-header: yes
> >     >
> >     >   # Stats.log contains data from various counters of the suricata
> >     engine.
> >     >   # The interval field (in seconds) tells after how long output
> >     will be
> >     > written
> >     >   # on the log file.
> >     >   - stats:
> >     >       enabled: yes
> >     >       filename: stats.log
> >     >       interval: 10
> >     >
> >     >   # a line based alerts log similar to fast.log into syslog
> >     >   - syslog:
> >     >       enabled: no
> >     >       # reported identity to syslog. If ommited the program name
> >     (usually
> >     >       # suricata) will be used.
> >     >       #identity: "suricata"
> >     >       facility: local5
> >     >       #level: Info ## possible levels: Emergency, Alert, Critical,
> >     >                    ## Error, Warning, Notice, Info, Debug
> >     >
> >     >   # a line based information for dropped packets in IPS mode
> >     >   - drop:
> >     >       enabled: no
> >     >       filename: drop.log
> >     >       append: yes
> >     >       #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram'
> >     >
> >     >   # output module to store extracted files to disk
> >     >   #
> >     >   # The files are stored to the log-dir in a format "file.<id>"
> where
> >     > <id> is
> >     >   # an incrementing number starting at 1. For each file
> >     "file.<id>" a meta
> >     >   # file "file.<id>.meta" is created.
> >     >   #
> >     >   # File extraction depends on a lot of things to be fully done:
> >     >   # - stream reassembly depth. For optimal results, set this to 0
> >     > (unlimited)
> >     >   # - http request / response body sizes. Again set to 0 for
> optimal
> >     > results.
> >     >   # - rules that contain the "filestore" keyword.
> >     >   - file-store:
> >     >       enabled: no       # set to yes to enable
> >     >       log-dir: files    # directory to store the files
> >     >       force-magic: no   # force logging magic on all stored files
> >     >       force-md5: no     # force logging of md5 checksums
> >     >       #waldo: file.waldo # waldo file to store the file_id across
> runs
> >     >
> >     >   # output module to log files tracked in a easily parsable json
> >     format
> >     >   - file-log:
> >     >       enabled: no
> >     >       filename: files-json.log
> >     >       append: yes
> >     >       #filetype: regular # 'regular', 'unix_stream' or 'unix_dgram'
> >     >
> >     >       force-magic: no   # force logging magic on all logged files
> >     >       force-md5: no     # force logging of md5 checksums
> >     >
> >     > # Magic file. The extension .mgc is added to the value here.
> >     > #magic-file: /usr/share/file/magic
> >     > magic-file: /usr/share/file/magic
> >     >
> >     > # When running in NFQ inline mode, it is possible to use a
> simulated
> >     > # non-terminal NFQUEUE verdict.
> >     > # This permit to do send all needed packet to suricata via this a
> >     rule:
> >     > #        iptables -I FORWARD -m mark ! --mark $MARK/$MASK -j
> NFQUEUE
> >     > # And below, you can have your standard filtering ruleset. To
> activate
> >     > # this mode, you need to set mode to 'repeat'
> >     > # If you want packet to be sent to another queue after an ACCEPT
> >     decision
> >     > # set mode to 'route' and set next-queue value.
> >     > # On linux >= 3.6, you can set the fail-open option to yes to have
> the
> >     > kernel
> >     > # accept the packet if suricata is not able to keep pace.
> >     > nfq:
> >     > #  mode: accept
> >     > #  repeat-mark: 1
> >     > #  repeat-mask: 1
> >     > #  route-queue: 2
> >     > #  fail-open: yes
> >     >
> >     > # af-packet support
> >     > # Set threads to > 1 to use PACKET_FANOUT support
> >     > af-packet:
> >     >   - interface: eth4
> >     >     # Number of receive threads (>1 will enable experimental flow
> >     pinned
> >     >     # runmode)
> >     >     threads: 1
> >     >     # Default clusterid.  AF_PACKET will load balance packets
> >     based on flow.
> >     >     # All threads/processes that will participate need to have the
> >     same
> >     >     # clusterid.
> >     >     cluster-id: 99
> >     >     # Default AF_PACKET cluster type. AF_PACKET can load balance
> per
> >     > flow or per hash.
> >     >     # This is only supported for Linux kernel > 3.1
> >     >     # possible value are:
> >     >     #  * cluster_round_robin: round robin load balancing
> >     >     #  * cluster_flow: all packets of a given flow are send to the
> >     same
> >     > socket
> >     >     #  * cluster_cpu: all packets treated in kernel by a CPU are
> >     send to
> >     > the same socket
> >     >     cluster-type: cluster_flow
> >     >     # In some fragmentation case, the hash can not be computed. If
> >     > "defrag" is set
> >     >     # to yes, the kernel will do the needed defragmentation before
> >     > sending the packets.
> >     >     defrag: yes
> >     >     # To use the ring feature of AF_PACKET, set 'use-mmap' to yes
> >     >     use-mmap: yes
> >     >     # Ring size will be computed with respect to
> >     max_pending_packets and
> >     > number
> >     >     # of threads. You can set manually the ring size in number of
> >     > packets by setting
> >     >     # the following value. If you are using flow cluster-type and
> have
> >     > really network
> >     >     # intensive single-flow you could want to set the ring-size
> >     > independantly of the number
> >     >     # of threads:
> >     >     ring-size: 65534
> >     >     # On busy system, this could help to set it to yes to recover
> >     from a
> >     > packet drop
> >     >     # phase. This will result in some packets (at max a ring flush)
> >     > being non treated.
> >     >     #use-emergency-flush: yes
> >     >     # recv buffer size, increase value could improve performance
> >     >     buffer-size: 32mb
> >     >     # Set to yes to disable promiscuous mode
> >     >     # disable-promisc: no
> >     >     # Choose checksum verification mode for the interface. At the
> >     moment
> >     >     # of the capture, some packets may be with an invalid checksum
> >     due to
> >     >     # offloading to the network card of the checksum computation.
> >     >     # Possible values are:
> >     >     #  - kernel: use indication sent by kernel for each packet
> >     (default)
> >     >     #  - yes: checksum validation is forced
> >     >     #  - no: checksum validation is disabled
> >     >     #  - auto: suricata uses a statistical approach to detect when
> >     >     #  checksum off-loading is used.
> >     >     # Warning: 'checksum-validation' must be set to yes to have any
> >     > validation
> >     >     #checksum-checks: kernel
> >     >     # BPF filter to apply to this interface. The pcap filter syntax
> >     > apply here.
> >     >     #bpf-filter: port 80 or udp
> >     >     # You can use the following variables to activate AF_PACKET
> tap od
> >     > IPS mode.
> >     >     # If copy-mode is set to ips or tap, the traffic coming to the
> >     current
> >     >     # interface will be copied to the copy-iface interface. If
> >     'tap' is
> >     > set, the
> >     >     # copy is complete. If 'ips' is set, the packet matching a
> >     'drop' action
> >     >     # will not be copied.
> >     >     #copy-mode: ips
> >     >     #copy-iface: eth1
> >     >   - interface: eth5
> >     >     threads: 14
> >     >     cluster-id: 98
> >     >     cluster-type: cluster_flow
> >     >     defrag: yes
> >     >     use-mmap: yes
> >     >     ring-size: 1048576
> >     >     buffer-size: 2gb
> >     >     # disable-promisc: no
> >     >
> >     >   - interface: eth6
> >     >     threads: 1
> >     >     cluster-id: 97
> >     >     cluster-type: cluster_flow
> >     >     defrag: yes
> >     >     use-mmap: yes
> >     >     ring-size: 65534
> >     >     buffer-size: 32mb
> >     >
> >     >   - interface: eth7
> >     >     threads: 14
> >     >     cluster-id: 96
> >     >     cluster-type: cluster_flow
> >     >     defrag: yes
> >     >     use-mmap: yes
> >     >     ring-size: 1048576
> >     >     buffer-size: 2gb
> >     >
> >     > # You can specify a threshold config file by setting
> "threshold-file"
> >     > # to the path of the threshold config file:
> >     > # threshold-file: /etc/suricata/threshold.config
> >     >
> >     > # The detection engine builds internal groups of signatures. The
> >     engine
> >     > # allow us to specify the profile to use for them, to manage
> >     memory on an
> >     > # efficient way keeping a good performance. For the profile
> >     keyword you
> >     > # can use the words "low", "medium", "high" or "custom". If you
> >     use custom
> >     > # make sure to define the values at "- custom-values" as your
> >     convenience.
> >     > # Usually you would prefer medium/high/low.
> >     > #
> >     > # "sgh mpm-context", indicates how the staging should allot mpm
> >     contexts for
> >     > # the signature groups.  "single" indicates the use of a single
> >     context for
> >     > # all the signature group heads.  "full" indicates a mpm-context
> >     for each
> >     > # group head.  "auto" lets the engine decide the distribution of
> >     contexts
> >     > # based on the information the engine gathers on the patterns from
> >     each
> >     > # group head.
> >     > #
> >     > # The option inspection-recursion-limit is used to limit the
> >     recursive calls
> >     > # in the content inspection code.  For certain payload-sig
> >     combinations, we
> >     > # might end up taking too much time in the content inspection code.
> >     > # If the argument specified is 0, the engine uses an internally
> >     defined
> >     > # default limit.  On not specifying a value, we use no limits on
> the
> >     > recursion.
> >     > detect-engine:
> >     >   - profile: high
> >     >   - custom-values:
> >     >       toclient-src-groups: 2
> >     >       toclient-dst-groups: 2
> >     >       toclient-sp-groups: 2
> >     >       toclient-dp-groups: 3
> >     >       toserver-src-groups: 2
> >     >       toserver-dst-groups: 4
> >     >       toserver-sp-groups: 2
> >     >       toserver-dp-groups: 25
> >     >   - sgh-mpm-context: auto
> >     >   - inspection-recursion-limit: 3000
> >     >   # When rule-reload is enabled, sending a USR2 signal to the
> Suricata
> >     > process
> >     >   # will trigger a live rule reload. Experimental feature, use
> >     with care.
> >     >   - rule-reload: true
> >     >   # If set to yes, the loading of signatures will be made after
> >     the capture
> >     >   # is started. This will limit the downtime in IPS mode.
> >     >   #- delayed-detect: yes
> >     >
> >     > # Suricata is multi-threaded. Here the threading can be influenced.
> >     > threading:
> >     >   # On some cpu's/architectures it is beneficial to tie individual
> >     threads
> >     >   # to specific CPU's/CPU cores. In this case all threads are tied
> >     to CPU0,
> >     >   # and each extra CPU/core has one "detect" thread.
> >     >   #
> >     >   # On Intel Core2 and Nehalem CPU's enabling this will degrade
> >     performance.
> >     >   #
> >     >   set-cpu-affinity: no
> >     >   # Tune cpu affinity of suricata threads. Each family of threads
> >     can be
> >     > bound
> >     >   # on specific CPUs.
> >     >   cpu-affinity:
> >     >     - management-cpu-set:
> >     >         cpu: [ 0 ]  # include only these cpus in affinity settings
> >     >     - receive-cpu-set:
> >     >         cpu: [ 0 ]  # include only these cpus in affinity settings
> >     >     - decode-cpu-set:
> >     >         cpu: [ 0, 1 ]
> >     >         mode: "balanced"
> >     >     - stream-cpu-set:
> >     >         cpu: [ "0-1" ]
> >     >     - detect-cpu-set:
> >     >         cpu: [ "all" ]
> >     >         mode: "exclusive" # run detect threads in these cpus
> >     >         # Use explicitely 3 threads and don't compute number by
> using
> >     >         # detect-thread-ratio variable:
> >     >         # threads: 3
> >     >         prio:
> >     >           low: [ 0 ]
> >     >           medium: [ "1-2" ]
> >     >           high: [ 3 ]
> >     >           default: "medium"
> >     >     - verdict-cpu-set:
> >     >         cpu: [ 0 ]
> >     >         prio:
> >     >           default: "high"
> >     >     - reject-cpu-set:
> >     >         cpu: [ 0 ]
> >     >         prio:
> >     >           default: "low"
> >     >     - output-cpu-set:
> >     >         cpu: [ "all" ]
> >     >         prio:
> >     >            default: "medium"
> >     >   #
> >     >   # By default Suricata creates one "detect" thread per available
> >     > CPU/CPU core.
> >     >   # This setting allows controlling this behaviour. A ratio
> >     setting of 2
> >     > will
> >     >   # create 2 detect threads for each CPU/CPU core. So for a dual
> core
> >     > CPU this
> >     >   # will result in 4 detect threads. If values below 1 are used,
> less
> >     > threads
> >     >   # are created. So on a dual core CPU a setting of 0.5 results in
> >     1 detect
> >     >   # thread being created. Regardless of the setting at a minimum 1
> >     detect
> >     >   # thread will always be created.
> >     >   #
> >     >   detect-thread-ratio: 1.5
> >     >
> >     > # Cuda configuration.
> >     > cuda:
> >     >   # The "mpm" profile.  On not specifying any of these parameters,
> the
> >     > engine's
> >     >   # internal default values are used, which are same as the ones
> >     > specified here.
> >     >   - mpm:
> >     >       # Threshold limit for no of packets buffered to the GPU.
> >      Once we
> >     > hit this
> >     >       # limit, we pass the buffer to the gpu.
> >     >       packet-buffer-limit: 2400
> >     >       # The maximum length for a packet that we would buffer to
> >     the gpu.
> >     >       # Anything over this is MPM'ed on the CPU.  All entries > 0
> >     are valid.
> >     >       # Can be specified in kb, mb, gb.  Just a number indicates
> >     it's in
> >     > bytes.
> >     >       packet-size-limit: 1500
> >     >       # No of packet buffers we initialize.  All entries > 0 are
> >     valid.
> >     >       packet-buffers: 10
> >     >       # The timeout limit for batching of packets in secs.  If we
> >     don't
> >     > fill the
> >     >       # buffer within this timeout limit, we pass the currently
> filled
> >     > buffer to the gpu.
> >     >       # All entries > 0 are valid.
> >     >       batching-timeout: 1
> >     >       # Specifies whether to use page-locked memory whereever
> >     possible.
> >     > Accepted values
> >     >       # are "enabled" and "disabled".
> >     >       page-locked: enabled
> >     >       # The device to use for the mpm.  Currently we don't support
> >     load
> >     > balancing
> >     >       # on multiple gpus.  In case you have multiple devices on
> your
> >     > system, you
> >     >       # can specify the device to use, using this conf.  By
> default we
> >     > hold 0, to
> >     >       # specify the first device cuda sees.  To find out device-id
> >     > associated with
> >     >       # the card(s) on the system run "suricata --list-cuda-cards".
> >     >       device-id: 0
> >     >       # No of Cuda streams used for asynchronous processing. All
> >     values
> >     >> 0 are valid.
> >     >       # For this option you need a device with Compute Capability
> >     > 1.0 and
> >     >       # page-locked enabled to have any effect.
> >     >       cuda-streams: 2
> >     >
> >     > # Select the multi pattern algorithm you want to run for
> >     scan/search the
> >     > # in the engine. The supported algorithms are b2g, b2gc, b2gm, b3g,
> >     > wumanber,
> >     > # ac and ac-gfbs.
> >     > #
> >     > # The mpm you choose also decides the distribution of mpm contexts
> for
> >     > # signature groups, specified by the conf -
> >     "detect-engine.sgh-mpm-context".
> >     > # Selecting "ac" as the mpm would require
> >     "detect-engine.sgh-mpm-context"
> >     > # to be set to "single", because of ac's memory requirements,
> >     unless the
> >     > # ruleset is small enough to fit in one's memory, in which case
> >     one can
> >     > # use "full" with "ac".  Rest of the mpms can be run in "full"
> mode.
> >     > #
> >     > # There is also a CUDA pattern matcher (only available if Suricata
> was
> >     > # compiled with --enable-cuda: b2g_cuda. Make sure to update your
> >     > # max-pending-packets setting above as well if you use b2g_cuda.
> >     >
> >     > mpm-algo: ac
> >     >
> >     > # The memory settings for hash size of these algorithms can vary
> >     from lowest
> >     > # (2048) - low (4096) - medium (8192) - high (16384) - higher
> >     (32768) - max
> >     > # (65536). The bloomfilter sizes of these algorithms can vary from
> low
> >     > (512) -
> >     > # medium (1024) - high (2048).
> >     > #
> >     > # For B2g/B3g algorithms, there is a support for two different
> >     scan/search
> >     > # algorithms. For B2g the scan algorithms are B2gScan &
> >     B2gScanBNDMq, and
> >     > # search algorithms are B2gSearch & B2gSearchBNDMq. For B3g scan
> >     algorithms
> >     > # are B3gScan & B3gScanBNDMq, and search algorithms are B3gSearch &
> >     > # B3gSearchBNDMq.
> >     > #
> >     > # For B2g the different scan/search algorithms and, hash and bloom
> >     > # filter size settings. For B3g the different scan/search
> algorithms
> >     > and, hash
> >     > # and bloom filter size settings. For wumanber the hash and bloom
> >     filter
> >     > size
> >     > # settings.
> >     >
> >     > pattern-matcher:
> >     >   - b2gc:
> >     >       search-algo: B2gSearchBNDMq
> >     >       hash-size: high # FER2 low
> >     >       bf-size: medium
> >     >   - b2gm:
> >     >       search-algo: B2gSearchBNDMq
> >     >       hash-size: high # FER2 low
> >     >       bf-size: medium
> >     >   - b2g:
> >     >       search-algo: B2gSearchBNDMq
> >     >       hash-size: high # FER2 low
> >     >       bf-size: medium
> >     >   - b3g:
> >     >       search-algo: B3gSearchBNDMq
> >     >       hash-size: high # FER2 low
> >     >       bf-size: medium
> >     >   - wumanber:
> >     >       hash-size: high # FER2 low
> >     >       bf-size: medium
> >     >
> >     > # Defrag settings:
> >     >
> >     > defrag:
> >     >   memcap: 1gb
> >     >   hash-size: 131072
> >     >   trackers: 131072 # number of defragmented flows to follow
> >     >   max-frags: 131072 # number of fragments to keep (higher than
> >     trackers)
> >     >   prealloc: yes
> >     >   timeout: 10 # FER 60
> >     >
> >     > # Flow settings:
> >     > # By default, the reserved memory (memcap) for flows is 32MB. This
> is
> >     > the limit
> >     > # for flow allocation inside the engine. You can change this value
> >     to allow
> >     > # more memory usage for flows.
> >     > # The hash-size determine the size of the hash used to identify
> >     flows inside
> >     > # the engine, and by default the value is 65536.
> >     > # At the startup, the engine can preallocate a number of flows, to
> >     get a
> >     > better
> >     > # performance. The number of flows preallocated is 10000 by
> default.
> >     > # emergency-recovery is the percentage of flows that the engine
> >     need to
> >     > # prune before unsetting the emergency state. The emergency state
> is
> >     > activated
> >     > # when the memcap limit is reached, allowing to create new flows,
> but
> >     > # prunning them with the emergency timeouts (they are defined
> below).
> >     > # If the memcap is reached, the engine will try to prune flows
> >     > # with the default timeouts. If it doens't find a flow to prune,
> >     it will set
> >     > # the emergency bit and it will try again with more agressive
> >     timeouts.
> >     > # If that doesn't work, then it will try to kill the last time
> >     seen flows
> >     > # not in use.
> >     > # The memcap can be specified in kb, mb, gb.  Just a number
> >     indicates it's
> >     > # in bytes.
> >     >
> >     > flow:
> >     >   memcap: 3gb
> >     >   hash-size: 1048576 # FER 131072
> >     >   prealloc: 1048576 # FER error? 16gb
> >     >   emergency-recovery: 30
> >     >
> >     > # Specific timeouts for flows. Here you can specify the timeouts
> >     that the
> >     > # active flows will wait to transit from the current state to
> another,
> >     > on each
> >     > # protocol. The value of "new" determine the seconds to wait after
> a
> >     > hanshake or
> >     > # stream startup before the engine free the data of that flow it
> >     doesn't
> >     > # change the state to established (usually if we don't receive
> >     more packets
> >     > # of that flow). The value of "established" is the amount of
> >     > # seconds that the engine will wait to free the flow if it spend
> >     that amount
> >     > # without receiving new packets or closing the connection.
> >     "closed" is the
> >     > # amount of time to wait after a flow is closed (usually zero).
> >     > #
> >     > # There's an emergency mode that will become active under attack
> >     > circumstances,
> >     > # making the engine to check flow status faster. This configuration
> >     > variables
> >     > # use the prefix "emergency-" and work similar as the normal ones.
> >     > # Some timeouts doesn't apply to all the protocols, like "closed",
> for
> >     > udp and
> >     > # icmp.
> >     >
> >     > flow-timeouts:
> >     >
> >     >   default:
> >     >     new: 2 # 30
> >     >     established: 3 # 300
> >     >     closed: 0
> >     >     emergency-new: 1 # 10
> >     >     emergency-established: 2 # 100
> >     >     emergency-closed: 0
> >     >   tcp:
> >     >     new: 2 # 60
> >     >     established: 3 # 3600
> >     >     closed: 0 # 120
> >     >     emergency-new: 1 # 10
> >     >     emergency-established: 2 # 300
> >     >     emergency-closed: 0 # 20
> >     >   udp:
> >     >     new: 1 # 30
> >     >     established: 2 # 300
> >     >     emergency-new: 1 # 10
> >     >     emergency-established: 2 # 100
> >     >   icmp:
> >     >     new: 1 # 30
> >     >     established: 1 # 300
> >     >     emergency-new: 1 # 10
> >     >     emergency-established: 1 # 100
> >     >
> >     > # Stream engine settings. Here the TCP stream tracking and
> reaasembly
> >     > # engine is configured.
> >     > #
> >     > # stream:
> >     > #   memcap: 32mb                # Can be specified in kb, mb, gb.
> >      Just a
> >     > #                               # number indicates it's in bytes.
> >     > #   checksum-validation: yes    # To validate the checksum of
> received
> >     > #                               # packet. If csum validation is
> >     specified as
> >     > #                               # "yes", then packet with invalid
> csum
> >     > will not
> >     > #                               # be processed by the engine
> >     stream/app
> >     > layer.
> >     > #                               # Warning: locally generated
> >     trafic can be
> >     > #                               # generated without checksum due to
> >     > hardware offload
> >     > #                               # of checksum. You can control the
> >     > handling of checksum
> >     > #                # on a per-interface basis via the
> 'checksum-checks'
> >     > #                # option
> >     > #   max-sessions: 262144        # 256k concurrent sessions
> >     > #   prealloc-sessions: 32768    # 32k sessions prealloc'd
> >     > #   midstream: false            # don't allow midstream session
> >     pickups
> >     > #   async-oneside: false        # don't enable async stream
> handling
> >     > #   inline: no                  # stream inline mode
> >     > #
> >     > #   reassembly:
> >     > #     memcap: 64mb              # Can be specified in kb, mb, gb.
> >      Just
> >     > a number
> >     > #                               # indicates it's in bytes.
> >     > #     depth: 1mb                # Can be specified in kb, mb, gb.
> >      Just
> >     > a number
> >     > #                               # indicates it's in bytes.
> >     > #     toserver-chunk-size: 2560 # inspect raw stream in chunks of
> >     at least
> >     > #                               # this size.  Can be specified in
> >     kb, mb,
> >     > #                               # gb.  Just a number indicates
> it's in
> >     > bytes.
> >     > #     toclient-chunk-size: 2560 # inspect raw stream in chunks of
> >     at least
> >     > #                               # this size.  Can be specified in
> >     kb, mb,
> >     > #                               # gb.  Just a number indicates
> it's in
> >     > bytes.
> >     >
> >     > stream:
> >     >   memcap: 16gb
> >     >   checksum-validation: no      # reject wrong csums
> >     >   inline: no                  # auto will use inline mode in IPS
> mode,
> >     > yes or no set it statically
> >     >   max-sessions: 4500000
> >     >   prealloc-sessions: 2000000
> >     >   reassembly:
> >     >     memcap: 98gb
> >     >     depth: 150kb                  # reassemble 1mb into a stream
> >     >     toserver-chunk-size: 2560
> >     >     toclient-chunk-size: 2560
> >     >
> >     > # Host table:
> >     > #
> >     > # Host table is used by tagging and per host thresholding
> subsystems.
> >     > #
> >     > host:
> >     >   hash-size: 4096
> >     >   prealloc: 10000
> >     >   memcap: 512mb
> >     >
> >     > # Logging configuration.  This is not about logging IDS alerts, but
> >     > # IDS output about what its doing, errors, etc.
> >     > logging:
> >     >
> >     >   # The default log level, can be overridden in an output section.
> >     >   # Note that debug level logging will only be emitted if Suricata
> was
> >     >   # compiled with the --enable-debug configure option.
> >     >   #
> >     >   # This value is overriden by the SC_LOG_LEVEL env var.
> >     >   default-log-level: info
> >     >
> >     >   # The default output format.  Optional parameter, should default
> to
> >     >   # something reasonable if not provided.  Can be overriden in an
> >     >   # output section.  You can leave this out to get the default.
> >     >   #
> >     >   # This value is overriden by the SC_LOG_FORMAT env var.
> >     >   #default-log-format: "[%i] %t - (%f:%l) <%d> (%n) -- "
> >     >
> >     >   # A regex to filter output.  Can be overridden in an output
> section.
> >     >   # Defaults to empty (no filter).
> >     >   #
> >     >   # This value is overriden by the SC_LOG_OP_FILTER env var.
> >     >   default-output-filter:
> >     >
> >     >   # Define your logging outputs.  If none are defined, or they are
> all
> >     >   # disabled you will get the default - console output.
> >     >   outputs:
> >     >   - console:
> >     >       enabled: yes
> >     >   - file:
> >     >       enabled: yes
> >     >       filename: /var/log/suricata/suricata.log
> >     >   - syslog:
> >     >       enabled: no
> >     >       facility: local5
> >     >       format: "[%i] <%d> -- "
> >     >
> >     > # PF_RING configuration. for use with native PF_RING support
> >     > # for more info see http://www.ntop.org/PF_RING.html
> >     > pfring:
> >     >   - interface: eth0
> >     >     # Number of receive threads (>1 will enable experimental flow
> >     pinned
> >     >     # runmode)
> >     >     threads: 1
> >     >
> >     >     # Default clusterid.  PF_RING will load balance packets based
> >     on flow.
> >     >     # All threads/processes that will participate need to have the
> >     same
> >     >     # clusterid.
> >     >     cluster-id: 99
> >     >
> >     >     # Default PF_RING cluster type. PF_RING can load balance per
> >     flow or
> >     > per hash.
> >     >     # This is only supported in versions of PF_RING > 4.1.1.
> >     >     cluster-type: cluster_flow
> >     >     # bpf filter for this interface
> >     >     #bpf-filter: tcp
> >     >     # Choose checksum verification mode for the interface. At the
> >     moment
> >     >     # of the capture, some packets may be with an invalid checksum
> >     due to
> >     >     # offloading to the network card of the checksum computation.
> >     >     # Possible values are:
> >     >     #  - rxonly: only compute checksum for packets received by
> >     network card.
> >     >     #  - yes: checksum validation is forced
> >     >     #  - no: checksum validation is disabled
> >     >     #  - auto: suricata uses a statistical approach to detect when
> >     >     #  checksum off-loading is used. (default)
> >     >     # Warning: 'checksum-validation' must be set to yes to have any
> >     > validation
> >     >     #checksum-checks: auto
> >     >   # Second interface
> >     >   #- interface: eth1
> >     >   #  threads: 3
> >     >   #  cluster-id: 93
> >     >   #  cluster-type: cluster_flow
> >     >
> >     > pcap:
> >     >   - interface: eth4
> >     >     buffer-size: 1gb
> >     >     checksum-checks: no
> >     >     threads: 8
> >     >   - interface: eth5
> >     >     buffer-size: 1gb
> >     >     checksum-checks: no
> >     >     threads: 8
> >     >   - interface: eth6
> >     >     buffer-size: 1gb
> >     >     checksum-checks: no
> >     >     threads: 8
> >     >   - interface: eth7
> >     >     buffer-size: 1gb
> >     >     checksum-checks: no
> >     >     threads: 8
> >     >
> >     >     #bpf-filter: "tcp and port 25"
> >     >     # Choose checksum verification mode for the interface. At the
> >     moment
> >     >     # of the capture, some packets may be with an invalid checksum
> >     due to
> >     >     # offloading to the network card of the checksum computation.
> >     >     # Possible values are:
> >     >     #  - yes: checksum validation is forced
> >     >     #  - no: checksum validation is disabled
> >     >     #  - auto: suricata uses a statistical approach to detect when
> >     >     #  checksum off-loading is used. (default)
> >     >     # Warning: 'checksum-validation' must be set to yes to have any
> >     > validation
> >     >     #checksum-checks: auto
> >     >     # With some accelerator cards using a modified libpcap (like
> >     > myricom), you
> >     >     # may want to have the same number of capture threads as the
> >     number
> >     > of capture
> >     >     # rings. In this case, set up the threads variable to N to
> start N
> >     > threads
> >     >     # listening on the same interface.
> >     >     #threads: 16
> >     >
> >     > # For FreeBSD ipfw(8) divert(4) support.
> >     > # Please make sure you have ipfw_load="YES" and ipdivert_load="YES"
> >     > # in /etc/loader.conf or kldload'ing the appropriate kernel
> modules.
> >     > # Additionally, you need to have an ipfw rule for the engine to see
> >     > # the packets from ipfw.  For Example:
> >     > #
> >     > #   ipfw add 100 divert 8000 ip from any to any
> >     > #
> >     > # The 8000 above should be the same number you passed on the
> command
> >     > # line, i.e. -d 8000
> >     > #
> >     > ipfw:
> >     >
> >     >   # Reinject packets at the specified ipfw rule number.  This
> config
> >     >   # option is the ipfw rule number AT WHICH rule processing
> continues
> >     >   # in the ipfw processing system after the engine has finished
> >     >   # inspecting the packet for acceptance.  If no rule number is
> >     specified,
> >     >   # accepted packets are reinjected at the divert rule which they
> >     entered
> >     >   # and IPFW rule processing continues.  No check is done to verify
> >     >   # this will rule makes sense so care must be taken to avoid
> >     loops in ipfw.
> >     >   #
> >     >   ## The following example tells the engine to reinject packets
> >     >   # back into the ipfw firewall AT rule number 5500:
> >     >   #
> >     >   # ipfw-reinjection-rule-number: 5500
> >     >
> >     > # Set the default rule path here to search for the files.
> >     > # if not set, it will look at the current working dir
> >     > default-rule-path: /etc/suricata/rules
> >     > rule-files:
> >     >  - botcc.rules
> >     >  - ciarmy.rules
> >     >  - compromised.rules
> >     >  - drop.rules
> >     >  - dshield.rules
> >     >  - emerging-activex.rules
> >     >  - emerging-attack_response.rules
> >     >  - emerging-chat.rules
> >     >  - emerging-current_events.rules
> >     >  - emerging-dns.rules
> >     >  - emerging-dos.rules
> >     >  - emerging-exploit.rules
> >     >  - emerging-ftp.rules
> >     >  - emerging-games.rules
> >     >  - emerging-icmp_info.rules
> >     >  - emerging-icmp.rules
> >     >  - emerging-imap.rules
> >     >  - emerging-inappropriate.rules
> >     >  - emerging-malware.rules
> >     >  - emerging-misc.rules
> >     >  - emerging-mobile_malware.rules
> >     >  - emerging-netbios.rules
> >     >  - emerging-p2p.rules
> >     >  - emerging-policy.rules
> >     >  - emerging-pop3.rules
> >     >  - emerging-rpc.rules
> >     >  - emerging-scada.rules
> >     >  - emerging-scan.rules
> >     >  - emerging-shellcode.rules
> >     >  - emerging-smtp.rules
> >     >  - emerging-snmp.rules
> >     >  - emerging-sql.rules
> >     >  - emerging-telnet.rules
> >     >  - emerging-tftp.rules
> >     >  - emerging-trojan.rules
> >     >  - emerging-user_agents.rules
> >     >  - emerging-virus.rules
> >     >  - emerging-voip.rules
> >     >  - emerging-web_client.rules
> >     >  - emerging-web_server.rules
> >     >  - emerging-web_specific_apps.rules
> >     >  - emerging-worm.rules
> >     >  - rbn-malvertisers.rules
> >     >  - rbn.rules
> >     >  - tor.rules
> >     >  - decoder-events.rules # available in suricata sources under
> >     rules dir
> >     > # - stream-events.rules  # available in suricata sources under
> >     rules dir
> >     >  - http-events.rules    # available in suricata sources under
> >     rules dir
> >     >  - smtp-events.rules    # available in suricata sources under
> >     rules dir
> >     >
> >     > classification-file: /etc/suricata/classification.config
> >     > reference-config-file: /etc/suricata/reference.config
> >     >
> >     > # Holds variables that would be used by the engine.
> >     > vars:
> >     >
> >     >   # Holds the address group vars that would be passed in a
> Signature.
> >     >   # These would be retrieved during the Signature address parsing
> >     stage.
> >     >   address-groups:
> >     >
> >     >     HOME_NET: "[192.168.0.0/16,10.0.0.0/8,172.16.0.0/12
> >     <http://192.168.0.0/16,10.0.0.0/8,172.16.0.0/12>
> >     > <http://192.168.0.0/16,10.0.0.0/8,172.16.0.0/12>]"
> >     >
> >     >     EXTERNAL_NET: "!$HOME_NET"
> >     >
> >     >     HTTP_SERVERS: "$HOME_NET"
> >     >
> >     >     SMTP_SERVERS: "$HOME_NET"
> >     >
> >     >     SQL_SERVERS: "$HOME_NET"
> >     >
> >     >     DNS_SERVERS: "$HOME_NET"
> >     >
> >     >     TELNET_SERVERS: "$HOME_NET"
> >     >
> >     >     AIM_SERVERS: "$EXTERNAL_NET"
> >     >
> >     >     DNP3_SERVER: "$HOME_NET"
> >     >
> >     >     DNP3_CLIENT: "$HOME_NET"
> >     >
> >     >     MODBUS_CLIENT: "$HOME_NET"
> >     >
> >     >     MODBUS_SERVER: "$HOME_NET"
> >     >
> >     >     ENIP_CLIENT: "$HOME_NET"
> >     >
> >     >     ENIP_SERVER: "$HOME_NET"
> >     >
> >     >   # Holds the port group vars that would be passed in a Signature.
> >     >   # These would be retrieved during the Signature port parsing
> stage.
> >     >   port-groups:
> >     >
> >     >     HTTP_PORTS: "80"
> >     >
> >     >     SHELLCODE_PORTS: "!80"
> >     >
> >     >     ORACLE_PORTS: 1521
> >     >
> >     >     SSH_PORTS: 22
> >     >
> >     >     DNP3_PORTS: 20000
> >     >
> >     > # Set the order of alerts bassed on actions
> >     > # The default order is pass, drop, reject, alert
> >     > action-order:
> >     >   - pass
> >     >   - drop
> >     >   - reject
> >     >   - alert
> >     >
> >     >
> >     > # Host specific policies for defragmentation and TCP stream
> >     > # reassembly.  The host OS lookup is done using a radix tree, just
> >     > # like a routing table so the most specific entry matches.
> >     > host-os-policy:
> >     >   # Make the default policy windows.
> >     >   windows: [0.0.0.0/0 <http://0.0.0.0/0> <http://0.0.0.0/0>]
> >     >   bsd: []
> >     >   bsd-right: []
> >     >   old-linux: []
> >     >   linux: [10.0.0.0/8 <http://10.0.0.0/8> <http://10.0.0.0/8>,
> >     192.168.1.100,
> >     > "8762:2352:6241:7245:E000:0000:0000:0000"]
> >     >   old-solaris: []
> >     >   solaris: ["::1"]
> >     >   hpux10: []
> >     >   hpux11: []
> >     >   irix: []
> >     >   macos: []
> >     >   vista: []
> >     >   windows2k3: []
> >     >
> >     >
> >     > # Limit for the maximum number of asn1 frames to decode (default
> 256)
> >     > asn1-max-frames: 256
> >     >
> >     > # When run with the option --engine-analysis, the engine will read
> >     each of
> >     > # the parameters below, and print reports for each of the enabled
> >     sections
> >     > # and exit.  The reports are printed to a file in the default log
> dir
> >     > # given by the parameter "default-log-dir", with engine reporting
> >     > # subsection below printing reports in its own report file.
> >     > engine-analysis:
> >     >   # enables printing reports for fast-pattern for every rule.
> >     >   rules-fast-pattern: yes
> >     >   # enables printing reports for each rule
> >     >   rules: yes
> >     >
> >     > #recursion and match limits for PCRE where supported
> >     > pcre:
> >     >   match-limit: 3500
> >     >   match-limit-recursion: 1500
> >     >
> >     >
> >
> ###########################################################################
> >     > # Configure libhtp.
> >     > #
> >     > #
> >     > # default-config:           Used when no server-config matches
> >     > #   personality:            List of personalities used by default
> >     > #   request-body-limit:     Limit reassembly of request body for
> >     inspection
> >     > #                           by http_client_body & pcre /P option.
> >     > #   response-body-limit:    Limit reassembly of response body for
> >     inspection
> >     > #                           by file_data, http_server_body & pcre
> >     /Q option.
> >     > #   double-decode-path:     Double decode path section of the URI
> >     > #   double-decode-query:    Double decode query section of the URI
> >     > #
> >     > # server-config:            List of server configurations to use if
> >     > address matches
> >     > #   address:                List of ip addresses or networks for
> >     this block
> >     > #   personalitiy:           List of personalities used by this
> block
> >     > #   request-body-limit:     Limit reassembly of request body for
> >     inspection
> >     > #                           by http_client_body & pcre /P option.
> >     > #   response-body-limit:    Limit reassembly of response body for
> >     inspection
> >     > #                           by file_data, http_server_body & pcre
> >     /Q option.
> >     > #   double-decode-path:     Double decode path section of the URI
> >     > #   double-decode-query:    Double decode query section of the URI
> >     > #
> >     > # Currently Available Personalities:
> >     > #   Minimal
> >     > #   Generic
> >     > #   IDS (default)
> >     > #   IIS_4_0
> >     > #   IIS_5_0
> >     > #   IIS_5_1
> >     > #   IIS_6_0
> >     > #   IIS_7_0
> >     > #   IIS_7_5
> >     > #   Apache
> >     > #   Apache_2_2
> >     >
> >
> ###########################################################################
> >     > libhtp:
> >     >
> >     >    default-config:
> >     >      personality: IDS
> >     >
> >     >      # Can be specified in kb, mb, gb.  Just a number indicates
> >     >      # it's in bytes.
> >     >      request-body-limit: 16kb
> >     >      response-body-limit: 16kb
> >     >
> >     >      # inspection limits
> >     >      request-body-minimal-inspect-size: 16kb
> >     >      request-body-inspect-window: 16kb
> >     >      response-body-minimal-inspect-size: 16kb
> >     >      response-body-inspect-window: 16kb
> >     >
> >     >      # decoding
> >     >      double-decode-path: no
> >     >      double-decode-query: no
> >     >
> >     >    server-config:
> >     >
> >     >      - apache:
> >     >          address: [192.168.0.0/16 <http://192.168.0.0/16>
> >     <http://192.168.0.0/16>, 127.0.0.0/8 <http://127.0.0.0/8>
> >     > <http://127.0.0.0/8>, "::1"]
> >     >          personality: Apache_2_2
> >     >          # Can be specified in kb, mb, gb.  Just a number indicates
> >     >          # it's in bytes.
> >     >          request-body-limit: 16kb
> >     >          response-body-limit: 16kb
> >     >          double-decode-path: no
> >     >          double-decode-query: no
> >     >
> >     >      - iis7:
> >     >          address:
> >     >            - 192.168.0.0/16 <http://192.168.0.0/16>
> >     <http://192.168.0.0/16>
> >     >            # - 192.168.10.0/24 <http://192.168.10.0/24>
> >     <http://192.168.10.0/24>
> >     >          personality: IIS_7_0
> >     >          # Can be specified in kb, mb, gb.  Just a number indicates
> >     >          # it's in bytes.
> >     >          request-body-limit: 16kb
> >     >          response-body-limit: 16kb
> >     >          double-decode-path: no
> >     >          double-decode-query: no
> >     >
> >     > # Profiling settings. Only effective if Suricata has been built
> >     with the
> >     > # the --enable-profiling configure flag.
> >     > #
> >     > profiling:
> >     >
> >     >   # rule profiling
> >     >   rules:
> >     >
> >     >     # Profiling can be disabled here, but it will still have a
> >     >     # performance impact if compiled in.
> >     >     enabled: yes
> >     >     filename: rule_perf.log
> >     >     append: yes
> >     >
> >     >     # Sort options: ticks, avgticks, checks, matches, maxticks
> >     >     sort: avgticks
> >     >
> >     >     # Limit the number of items printed at exit.
> >     >     limit: 100
> >     >
> >     >   # packet profiling
> >     >   packets:
> >     >
> >     >     # Profiling can be disabled here, but it will still have a
> >     >     # performance impact if compiled in.
> >     >     enabled: yes
> >     >     filename: packet_stats.log
> >     >     append: yes
> >     >
> >     >     # per packet csv output
> >     >     csv:
> >     >
> >     >       # Output can be disabled here, but it will still have a
> >     >       # performance impact if compiled in.
> >     >       enabled: no
> >     >       filename: packet_stats.csv
> >     >
> >     >   # profiling of locking. Only available when Suricata was built
> with
> >     >   # --enable-profiling-locks.
> >     >   locks:
> >     >     enabled: no
> >     >     filename: lock_stats.log
> >     >     append: yes
> >     >
> >     > # Suricata core dump configuration. Limits the size of the core
> >     dump file to
> >     > # approximately max-dump. The actual core dump size will be a
> multiple
> >     > of the
> >     > # page size. Core dumps that would be larger than max-dump are
> >     truncated. On
> >     > # Linux, the actual core dump size may be a few pages larger than
> >     max-dump.
> >     > # Setting max-dump to 0 disables core dumping.
> >     > # Setting max-dump to 'unlimited' will give the full core dump
> file.
> >     > # On 32-bit Linux, a max-dump value >= ULONG_MAX may cause the
> >     core dump
> >     > size
> >     > # to be 'unlimited'.
> >     >
> >     > coredump:
> >     >   max-dump: unlimited
> >     >
> >     >
> >     >
> >     >
> >     > 2012/12/12 Victor Julien <lists at inliniac.net
> >     <mailto:lists at inliniac.net> <mailto:lists at inliniac.net
> >     <mailto:lists at inliniac.net>>>
> >     >
> >     >     On 12/12/2012 05:52 PM, Fernando Sclavo wrote:
> >     >     > Suricata recently dumped whith segfault, trying to reload
> rules.
> >     >
> >     >     Can you get us a backtrace?
> >     >
> >     >     The process should dump core to the directory you're starting
> >     from.
> >     >
> >     >     Also, can you share your config and commandline?
> >     >
> >     >     --
> >     >     ---------------------------------------------
> >     >     Victor Julien
> >     >     http://www.inliniac.net/
> >     >     PGP: http://www.inliniac.net/victorjulien.asc
> >     >     ---------------------------------------------
> >     >
> >     >     _______________________________________________
> >     >     Suricata IDS Users mailing list:
> >     >     oisf-users at openinfosecfoundation.org
> >     <mailto:oisf-users at openinfosecfoundation.org>
> >     >     <mailto:oisf-users at openinfosecfoundation.org
> >     <mailto:oisf-users at openinfosecfoundation.org>>
> >     >     Site: http://suricata-ids.org | Support:
> >     >     http://suricata-ids.org/support/
> >     >     List:
> >     >
> >     https://lists.openinfosecfoundation.org/mailman/listinfo/oisf-users
> >     >     OISF: http://www.openinfosecfoundation.org/
> >     >
> >     >
> >
> >
> >     --
> >     ---------------------------------------------
> >     Victor Julien
> >     http://www.inliniac.net/
> >     PGP: http://www.inliniac.net/victorjulien.asc
> >     ---------------------------------------------
> >
> >
>
>
> --
> ---------------------------------------------
> Victor Julien
> http://www.inliniac.net/
> PGP: http://www.inliniac.net/victorjulien.asc
> ---------------------------------------------
>
> _______________________________________________
> Suricata IDS Users mailing list: oisf-users at openinfosecfoundation.org
> Site: http://suricata-ids.org | Support: http://suricata-ids.org/support/
> List: https://lists.openinfosecfoundation.org/mailman/listinfo/oisf-users
> OISF: http://www.openinfosecfoundation.org/
>



-- 
Regards,
Peter Manev
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