Dumb Linux SNMP question

Question

I'm running Ubuntu and have snmpd running. I can do an snmpwalk:

snmpwalk -c public -v 1 localhost .1

and I get back about 20 values (SNMPv2-MIB -- mostly system description/name/uptime stuff).

Where are the memory, disk and network values? I've tried querying specific OIDs that I found Googling and they're not found.

I assume I have to enable memory/disk/network/etc somehow but can't figure out how (I've spent a lot of time Googling -- apparently this question is so noobish that no one else has asked it???).

Thanks for any insight.

Answer 1

Assuming it's using snmpd, check the config file: /etc/snmpd/snmpd.conf

SNMPD supports more limited monitoring like a disk usage threshold. There might be more options, I haven't monitored machines with it a lot.

Apparently you can also use the setup program:

snmpconf -g basic_setup

It will prompt you for information and configure the system for you.

Good luck.

Answer 2

Change this /etc/snmp/snmpd.conf

com2sec paranoid default public
#com2sec readonly default public
#com2sec readwrite default private

part to:

#com2sec paranoid default public
com2sec readonly 127.0.0.1 public
#com2sec readwrite default private

Restart snmpd:

sudo /etc/init.d/snmpd restart

Then try this one:

snmpwalk -c public -v 2c 127.0.0.1 .