SNMP traps to SNMP server

Dear Champs,

I am new to unix, and need to configure linux server to send below traps to a SNMP server.

Monitoring TRAP Disk Space Low
Monitoring TRAP Memory Low
Monitoring TRAP CPU high
Monitoring TRAP Admin login/Logoff

Please help me how to send this information to my SNMP server from my Linux server.

I just can't imagine a world in which I am new to Unix and need to do this.

You must have some idea of where to start. Enlighten me.

I have just basic understaning of unix/linux but not at advanced level..

would be greatful to you guys if help me out in the issue..