[Oisf-users] Can a single rule handle multiple hostnames?

[Cooper F. Nelson]

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This comes up periodically, so I'll also recommend either using a
blackhole DNS or a web proxy.  Squid is free.

You can even run suricata inline on the inside interface of the Squid
proxy, using Squid to block layer 3-6 traffic (IPs and hosts) and
suricata to drop layer 7 attacks.

- -Coop

On 5/29/2015 12:24 PM, Rodgers, Anthony (DTMB) wrote:
> Or you could use a DNS blackhole - probably vastly more efficient than using an IPS for this...
> 
> --
> Anthony Rodgers
> Security Analyst
> Michigan Security Operations Center (MiSOC)
> DTMB, Michigan Cyber Security
> 
> -----Original Message-----
> From: oisf-users-bounces at lists.openinfosecfoundation.org [mailto:oisf-users-bounces at lists.openinfosecfoundation.org] On Behalf Of Erich Lerch
> Sent: Friday, May 29, 2015 15:21
> To: Josh Larkins
> Cc: oisf-users at lists.openinfosecfoundation.org
> Subject: Re: [Oisf-users] Can a single rule handle multiple hostnames?
> 
> Josh
> I guess you could achieve that with a PCRE-rule... theoretically. But it's probably MUCH more efficient to write one rule per hostname. A different thing is when you have IP addresses.
> 
> erich
> 
> 
> 2015-05-29 19:33 GMT+02:00 Josh Larkins <jlarkins at malcovery.com>:
>> I have a set of hostnames I’d like to prevent communication with. Can 
>> I author a rule that will include all of them in the same rule? I’ve 
>> been scouring all the Suricata documentation and looked through the 
>> open source ET rules and I’m not seeing any examples of how to accomplish this.
>>
>>
>>
>> Josh
>>
>>
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> _______________________________________________
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> 


- -- 
Cooper Nelson
Network Security Analyst
UCSD ACT Security Team
cnelson at ucsd.edu x41042
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