Re: mrtg configuration
Sebastiaan said:
> so what you say is that SNMP has to be installed on a Linux box, since
> Linux does not 'speak' SNMP out of the box?
linux is a kernel, it doesn't have any way to respond to
application level network requests(with the exception of
the tux/khttpd webserver modules). You need a service on
the target system that can respond to snmp requests(same
for routers and switches).
> Then I have 2 questions:
> 1. does SNMP eat much CPU power? (it is going to run on a PI/133MHz/40MB
> which is used for firewal/gateway/mailserver/proxy etc. for a small local
> network)
SNMP won't chew any noticable CPU usage if all your gathering is
ethernet stats.
>
> 2. which package should I install? snmpd?
yes, but be sure to firewall it. the snmp daemon gives out an
incredible amount of information about a system, everything from
ethernet stats to process stats, to firewall rules to routing
table to arp table to # of users logged in, to icmp info, tcp info,
disk space usage, uptime, memory usage, swap usage and much much
more(all in all for one of my systems it returns over 5,000 different
bits of information).
so, be sure to firewall it on any untrusted network such as the internet.
nate
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