Keywords: Big Sister, Bigsister, Network Monitor, Network Monitoring, Perl, GPL, Big Brother, manual, SNMP

snmp
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## Name

snmp — remotely monitor hosts running SNMP agents

## Synopsis

[ `server1 novell hub2 hub server3 type=ping,net,storage,nwusers,cpu,novell snmp router1 community=secret type=net,ping` ]`snmp`

## Description

The default community (when not passwed with "community=...") is 'public'. "type" may be a list of checks out of the following:

`ping` report in host.conn if snmp poll was successfull

`net` check any network interface for InputErrors and OutputErrors and report a failure if device reports more than 2/s (yellow) or 6/s (red)

`storage` (currently only together with "novell" and "nt") use the 'hrStorage' oid for checking disk and memory usage

`cpu` uses 'hrProcessorLoad' to monitor CPU load. Does report "yellow" if load is>80%

`nwusers` (will only work with Netware servers) Does check 'nwMaxLogins' against 'nwLoginCount', report 'yellow' if only 10 users are left, 'red' if less than 2 are left

`hub / nt / novell / caty / cds / notes / linux` these do not include any check but will tell 'snmp' which types of machine are checked. Some snmp checks are depending on the type of host:

- `hub`: network hub
- `nt`: Windows NT
- `novell`: Novell Netware
- `caty`: Cisco Catalyst
- `cds`: Axis CD-Server
- `linux`: Linux (whith UCD SNMP)

| Note
snmp does read the file etc/mibs.txt. By default this contains only the Internet MIB-II (ping/net). You need to add more mibs from the contrib/mibs directory, e.g. `cat host.txt mib-2.txt nwhostx.txt nwserver.txt> mibs.txt`

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