improving signal to noise ratio from centralized network syslogs
Scott Weeks
surfer at mauigateway.com
Mon Feb 5 18:49:42 UTC 2018
--- tarko at lanparty.ee wrote:
> This is done with the 'logging facility'
> command on the devices:
>
> After defining your syslog server's IP
> address and the level of messaging you want
> (I set it to debug because I want to see
> everything):
>
> on the routers: logging facility local0
> on the switches: logging facility local1
Alternative, and more universal, way to do it is to use multiple IPs for
syslog server. Then configure correct syslog server IP on the device.
syslog-ng and others can all do filtering to different destinations
based on the IP where message was received.
------------------------------------------------
The nice thing about the simple way is you see
everything that's happening on the network, except
what you 'egrep -v' out, which you already know
about. Then you find things you weren't expecting.
You don't go looking for stuff. You just watch the
network events scroll by in real time ans see what
shows up.
I have no knowledge of syslog-ng. Does it do the
real time scrolling like I mention?
scott
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