Re: configure linux to receive snmp traps

OoO Lors de la soirée naissante du mardi 23 juin 2009, vers 18:27, Param
Srinivas <[email protected]> disait :

> Here's my question . I would like linux (redhat 5) to receive snmp traps from
> other windows server and also vmware environment.
> So in the installed net-snmp pakage. Then started the service "snmpd and
> snmptrapd" .
>  
> When i do netstat i see :
>  
>  netstat -apln |grep 'snmp'
> tcp        0      0 127.0.0.1:199               0.0.0.0:*                  
> LISTEN      15096/snmpd
> udp        0      0 0.0.0.0:161                
> 0.0.0.0:*                               15096/snmpd
> udp        0      0 0.0.0.0:162                
> 0.0.0.0:*                               21708/snmptrapd
> unix  2      [ ]         DGRAM                    3624025637 21708/snmptrapd
> unix  2      [ ]         DGRAM                    3623826491 15096/snmpd
> Then, Enabled windows to send snmp trap to the linux server.

I don't  know the  default configuration of  snmptrapd on RHEL,  but you
surely need to  add some instructions to allow it  to receive traps from
your Windows servers.

For example, you could have:
 doNotLogTraps no
 authCommunity log,execute,net public
 snmpTrapAddr 0.0.0.0

It should accept traps from any host  as long as the community is set to
public.   Moreover,   you   should    find   the   traps   received   in
/var/log/messages.

> When  i perform  a  snmpwalk  i receive  no  response fromthe  windows
> server.

This is  another problem. In  SNMP service properties, in  Security tab,
you need to set  the community and the list of hosts  allowed to do SNMP
requests.

> My goal is to monitor windows resouse like HD,CPU,MEM and other parameters from
> linux.

Traps  won't help  you  here. Traps  are  sent when  a particular  event
happen,  for example  when a  service  is stopped  or when  the host  is
rebooted.
-- 
panic("Tell me what a watchpoint trap is, and I'll then 
deal with such a beast...");
	2.2.16 /usr/src/linux/arch/arch/sparc/kernel/traps.c
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