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

Rodgers, Anthony (DTMB) RodgersA1 at michigan.gov
Fri May 29 19:24:26 UTC 2015


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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