On Thu, 11 Apr 2013, Josh Bitto wrote:
Ok so I go to load the Module omsnmp and I get an error in syslog that
omsnmp.so in /lib64 not found.....So I downloaded the source from here
http://www.rsyslog.com/files/download/rsyslog/rsyslog-7.2.6.tar.gz
To just try and grab the omsnmp.so file (I think I would have to compile to be
able to get that file)
Anywho Rainer you're on the right track. I don't think there is an input. Which
is what I'm wanting.
Yes, om* is output module.
So my question is ....how would I get rsyslog to pick this up? Or is there
another work around.
is your equipment unable to log via syslog? If so, let me know what brand it is
so I can avoid it. Network equipment has been logging via syslog for decades.
SNMP Traps would be a very poor fallback if what you are wanting is log
messages, assuming you could make it work.
So on the switch side I just gave it the community name and ip address and
criteria to send....
In the snmpd.conf on the server side the only thing that is setup is the
community name and the service is running. I don't think there is much more
than that required.
on the server side, what are you setting up? what software uses the config you
created?
I'm sorry if it seems like I'm making you jump through hoops here, but your
questions usually lack so much context that I am having to try and guess what
you are really trying to get done and why.
David Lang
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of David Lang
Sent: Thursday, April 11, 2013 11:30 AM
To: rsyslog-users
Subject: Re: [rsyslog] snmp on linux with rsyslog
log with the RSYSLOG_DebugFormat to see exactly what the various fields are
filled with.
I don't think fromhost-ip ever includes a port.
David Lang
On Thu, 11 Apr 2013, Josh Bitto wrote:
Ok so basically I would do something like this?
$ModLoad omsnmp
if $fromhost-ip == 'ip.addy.ha.ha:162' then /var/log/to-a-file.log & ~
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of David Lang
Sent: Thursday, April 11, 2013 11:13 AM
To: rsyslog-users
Subject: Re: [rsyslog] snmp on linux with rsyslog
you setup traps on the device to send messages to rsyslog.
But I doubt that you can set it up to send ALL log messages out that way.
Rsyslog has a module that can listen for SNMP Trap messages that are sent by
other devices.
David Lang
On Thu, 11 Apr 2013, Josh Bitto wrote:
I don't fully understand your response. I have to setup a trap on the
switch (to send logs to server) OR on the server side(to receive logs from
switch)?
I'm still a little confused on how rsyslog works with this.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of David Lang
Sent: Thursday, April 11, 2013 10:47 AM
To: rsyslog-users
Subject: Re: [rsyslog] snmp on linux with rsyslog
On Thu, 11 Apr 2013, Josh Bitto wrote:
I'm starting to add devices from our network to forward logs and I came across
a switch that uses snmp....I looked at the documentation on the website and had
a couple of questions.
1. Will ryslsog use V3 of snmp?
2. When adding the module to the rsyslog config to receive traffic from
said device is a trap necessary or can I just load a module and have a source
IP and port number configured to send logs to a specific file?
SNMP has two modes of operation
1. SNMP Query. the device listens for SNMP requests and responds with
the appropriate information
2. SNMP Traps. The device sends a message out under a specific condition.
In neither case are all the logs on the device sent over SNMP.
If you do not configure traps, nothing will be sent to the rsyslog server.
I don't know if rsyslog supports SNMPv3 or not.
Traps are designed to be alerts for critical failures, while it's good to get
them, you probably want more data and really want the device to send it's logs
to you. Once you have the device sending it's logs, you will probably find that
the data that's in the traps is also in the log.
David Lang
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