Firewall Wizards mailing list archives
Re: syslog and network management
From: Timothy Shea <tim () tshea net>
Date: Wed, 27 Feb 2008 20:11:02 -0600
we noticed a LOT of missing logs, when we changed to the default debian syslogd we were able to handle an order of magnatude more logs without any sign of missing logs (from around 100/sec to >1000/sec)
I am also perplexed by this. syslog-ng has many (many) flaws but in terms of dropping packets it has always out-performed every syslogd implementation I have run across ("performance" as being defined as receiving the highest percentage of packets - this is UDP after all.) So I have to question how it was implemented. How did you validate the drop count? How was syslog-ng implemented? Which debian version? t.s On Feb 26, 2008, at 4:12 PM, david () lang hm wrote:
On Mon, 25 Feb 2008, Brian Loe wrote:On Fri, Feb 22, 2008 at 8:06 PM, <david () lang hm> wrote:I've found that if you utilize, for instance, syslog-ng, you can split up the log files based on whatever (device type, network, etc.). Searching those smaller files is a lot less CPU intensive.true, but I found that syslog-ng was far less effective at the more important job of receiving syslog messages from the wire and writing them to diskReally? How so? We were logging 6 PIXen as well as many switches and routers (and a much lesser level). We never "noticed" a great loss of messages... I guess I can assume you did, and maybe I could learn from how you did! :) What daemon do you use?we tried to use syslog-ng to receive activity from our border router and write a copy locally (in large chunks) and relay the logs to another syslog server inside. we noticed a LOT of missing logs, when we changed to the default debian syslogd we were able to handle an order of magnatude more logs without any sign of missing logs (from around 100/sec to >1000/sec) David Lang _______________________________________________ firewall-wizards mailing list firewall-wizards () listserv icsalabs com https://listserv.icsalabs.com/mailman/listinfo/firewall-wizards
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Current thread:
- syslog and network management shadow floating (Feb 19)
- Re: syslog and network management Darden, Patrick S. (Feb 19)
- Re: syslog and network management shadow floating (Feb 20)
- Re: syslog and network management Darden, Patrick S. (Feb 21)
- Re: syslog and network management david (Feb 22)
- Re: syslog and network management Brian Loe (Feb 22)
- Re: syslog and network management david (Feb 23)
- Re: syslog and network management Brian Loe (Feb 25)
- Re: syslog and network management david (Feb 27)
- Re: syslog and network management ArkanoiD (Feb 29)
- Re: syslog and network management Timothy Shea (Feb 29)
- Re: syslog and network management shadow floating (Feb 20)
- Re: syslog and network management Darden, Patrick S. (Feb 19)
- Re: syslog and network management Alejandro Ezequiel Fernández Preda (Feb 21)
- Re: syslog and network management Dave Piscitello (Feb 22)
- Re: syslog and network management Brian Loe (Feb 22)
- Re: syslog and network management Brian Loe (Feb 22)
- Re: Firewall Placement Question Aniket S. Amdekar (Feb 22)
- Re: Firewall Placement Question Dan Lynch (Feb 22)
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