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Questions[snmpd](server)

Martin Hope
Andy
Asked: 2013-03-02 15:30:14 +0800 CST
  • 3

I'm trying to get my head around our snmpd.conf file in order to begin managing snmp with puppet. The existing file has several alarms setup for things like excessive disk space, load, etc. I'm assuming that when these conditions are reached an snmp trap is sent to the manager. However, the snmpd.conf file does not contain any manager setup or information. In other words there is no mention of a host or port where the manager runs. Thus, how does it know where to send traps? Is there some discover protocol?

snmpd
Martin Hope
Tom O'Connor
Asked: 2012-06-13 06:37:49 +0800 CST
  • 7

I've got a server running Postgresql 9.1 replication. I wrote a script which prints out the current replication lag (master inserts a unix timestamp every 60s, and the slave compares it to the current timestamp).

I've added 

extend replag /usr/local/bin/check_lag_quietly.sh

to snmpd.conf, and restarted the snmpd service, but when I snmpwalk the host, either from localhost, or from another machine on the network, I can see all of the other OIDs, but not this one.
If I do SNMP-Get as 

tom.oconnor@charcoal-black:~$ snmpget -v2c -cpublic dns-2 UCD-SNMP-MIB::extTable
UCD-SNMP-MIB::extTable = No Such Object available on this agent at this OID

Then it can't find the OID there either.

Net-SNMP version 5.4.2.1, Ubuntu 10.04.

snmpd ubuntu-10.04
Martin Hope
Korjavin Ivan
Asked: 2012-04-12 23:05:23 +0800 CST
  • 4

On my freebsd box i have snmpd daemon from net-snmp-5.5_4 packet.

In snmpd.conf file i have:

extend .1.3.6.1.4.1.2021.2 inpt /usr/bin/perl /usr/local/etc/snmp/mpdinput.pl

where mpdinput.pl my script which return input-octets from some mpd5-ng network interface.

Cacti reading this value and plot such graphs: graph

I added red lines to graph.

In marked places snmpd cache the result and return prev values, thats why rrdtool plot zero activity. And its a problem for me.

How to prevent caching result in snmpd?

cacti cache snmp network-monitoring snmpd
Martin Hope
wjimenez5271
Asked: 2011-09-13 12:08:35 +0800 CST
  • 39

SNMPd on my CentOS systems is sending log messages to syslog every time it receives a query from my monitoring tools. Is there a way to lower the verbosity of SNMPd? It adds a lot of clutter to the logs.

Sep 12 13:05:40 myhost snmpd[7073]: Received SNMP packet(s) from UDP: [ipaddr]:42874
Sep 12 13:05:40 myhost snmpd[7073]: Connection from UDP: [ipaddr]:49272

Thanks!

logging snmpd