Monit is an open source supervision tool. It can monitor daemons, system resources, remote hosts or programs. It is recommended to use monit to monitor your applications. Please see online documentation.

The command monit status returns the status of all supervised services. Services can be started/stopped with monit using the commands monit start <name> and monit stop <name>.

The monit configuration is made in the directory /etc/monit.d. It is a directory in which you have to add small scripts to describe what you want to do accordingly to monit specification.

Watchdog is handled by monit daemon.

Simple Network Management Protocol (SNMP) is a protocol used for monitoring network equipments. The data SNMP management is organized in a management information base (MIB). SNMP agent on Kerlink gateways is based on net-snmp (Net-SNMP). It is included by default with the firmware, and started automatically.

To disable SNMPD from running at startup use the following commands:

echo SNMPDRUN=no > /etc/default/snmpd
reboot 

The following MIBs are supported:

• mib2 (RFC1213)

mibII/vacm_conf
mibII/tcpTable
mibII/udpTable
mibII/system

• if-mib

if-mib/ifTable
if-mib/ifTable/ifTable
if-mib/ifTable/ifTable_interface

For more information, see Net-SNMP.