[Oisf-users] Segfault in 1.4rc1 in Live rule swap
Fernando Sclavo
fsclavo at gmail.com
Wed Dec 12 18:11:05 UTC 2012
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
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]"
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]
bsd: []
bsd-right: []
old-linux: []
linux: [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, 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
# - 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>
> 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
> 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/
>
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