Snort mailing list archives
RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED)
From: "Wright, Jonathon S CTR (US)" <jonathon.s.wright.ctr () mail mil>
Date: Fri, 27 Dec 2013 20:24:44 +0000
Classification: UNCLASSIFIED Caveats: NONE Hey List, Here is the goal, I'm trying to install snort 2.9.5.6-1 on a RHEL 6 with pcre 8.33 (8.34 as of the 15th of this month). Below are the details of the process I am doing and issues I'm running into. At the end, I listed 5 questions I need help with. I found one installation guide for RHEL 6 / snort 2.9.x on how to do this and followed it for assistance: http://www.procyonlabs.com/guides/rhel/snort_db_by2/ After completing the guide (minor modifications, but the theory of it was followed), I did a simple version check of snort and its dependencies with a "snort -V". Snort returned this: # snort -V ,,_ -*> Snort! <*- o" )~ Version 2.9.5.6 GRE (Build 208) '''' By Martin Roesch & The Snort Team: http://www.snort.org/snort/snort-team Copyright (C) 1998-2013 Sourcefire, Inc., et al. Using libpcap version 1.4.0 Using PCRE version: 7.8 2008-09-05 Using ZLIB version: 1.2.3 What caught my attention was the PCRE version, which is very old and has a large number of release fixes / enhancements since 7.8, see here: http://www.pcre.org/changelog.txt On FreeBSD (which we are migrating from), the output of the "snort -V" is the same, except PCRE version is correct showing this: Using PCRE version: 8.33 2013-05-28 So I figured I'd download the 8.34 version from pcre and build from source and rebuild snort. Snort still reflected the old pcre version. I talked to Red Hat, they indicated that they baselined pcre at 7.8 for RHEL6 OS and did not recommend / support it being overwritten (due to OS binary dependencies such as grep). So here are my 5 questions: 1. Is the guide I followed (above url) the best way to build snort or is there a better guide? (has anyone else done RHEL 6 / snort 2.9.5.6 / pcre 8.33) 2. Why is snort not available for RHEL 6 as an rpm or provided in any RHEL repository? This is going to be a maintenance nightmare if everything has to be built from source everytime a new version is released (we have large number of servers). 3. What is the impact of not having pcre 8.34? (40% of our rules use pcre expressions) 4. How do I compile / force snort to use the new pcre libraries if #3 above is severe? 5. Can I have to leave 2 versions of pcre (one for OS and one for Snort) on the OS? If so how do I repeat #4 above when a new version of snort / pcre comes out? If this should be on a different list also, let me know. Any insight is appreciated. JW Classification: UNCLASSIFIED Caveats: NONE
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Current thread:
- RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED) Wright, Jonathon S CTR (US) (Dec 27)
- Re: RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED) Joshua Kinard (Dec 27)
- Re: RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED) Wright, Jonathon S CTR (US) (Dec 27)
- Re: RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED) Joshua Kinard (Dec 27)
- Re: RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED) Wright, Jonathon S CTR (US) (Dec 27)
- Re: RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED) Wright, Jonathon S CTR (US) (Dec 27)
- Re: RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED) Joshua Kinard (Dec 27)
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- RHEL 6 with Snort 2.9.5.6-1 and PCRE 8.33 install issue (UNCLASSIFIED) Wright, Jonathon S CTR (US) (Dec 27)
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