Firewall Wizards mailing list archives
RE: Appropriate PIX logging level
From: "Paul Melson" <pmelson () gmail com>
Date: Tue, 2 May 2006 14:09:25 -0400
-----Original Message----- Subject: Re: [fw-wiz] Appropriate PIX logging level
David Lang wrote:I was actually just starting to look into this, I'm being blasted by the messages from the pix when it rejects a broadcast packet (I'm getting 43,000 log entries per day based on the firewalls rejecting each server that's in a HA configuration and useing broadcast udp packets for their heartbeat, that adds up to a LOT of log entries when there are several dozen such clusters)
If what you need is for the PIX to handle but not log certain policy events, use 'log disable' in your ACLs: access-list acl_inside deny udp any 10.0.255.255 eq 694 log disable But, I think this is a bad idea for a number of reasons. First, this is not a lot of data. 43K syslog events from a PIX is going to be less than 10MB of actual data before parsing or compression. Even on a P2 running NT and Kiwi, this is not a lot of data. Second, making these events disappear will skew any firewall performance statistics that you may want to do with these logs. Third, even if these events aren't individually important, the volume of them could be, specifically drastic and sudden changes in that volume. Log data is all contextual. To throw out even mundane events is to literally miss the whole picture and will probably come back to bite you later. Just my unsolicited $0.02. PaulM _______________________________________________ firewall-wizards mailing list firewall-wizards () honor icsalabs com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
Current thread:
- minirsyslogd (was Appropriate PIX logging level), (continued)
- minirsyslogd (was Appropriate PIX logging level) Bennett Todd (May 04)
- Re: Appropriate PIX logging level ArkanoiD (May 04)
- Re: Appropriate PIX logging level Marcus J. Ranum (May 04)
- Re: Appropriate PIX logging level ArkanoiD (May 04)
- Re: Appropriate PIX logging level Marcus J. Ranum (May 04)
- Re: Appropriate PIX logging level Brian Loe (May 05)
- Re: Appropriate PIX logging level Chuck Swiger (May 05)
- Re: Appropriate PIX logging level ArkanoiD (May 05)
- Re: Appropriate PIX logging level Chuck Swiger (May 05)
- Re: Appropriate PIX logging level ArkanoiD (May 05)
- RE: Appropriate PIX logging level David Lang (May 04)
- Re: Appropriate PIX logging level Tichomir Kotek (May 05)