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UDP Port 161

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Special Forums UNIX and Linux Applications Infrastructure Monitoring UDP Port 161
# 1  
Old 06-08-2010
UDP Port 161
hi guys

My linux server have SNMP configure port by default is 161 (UDP)
now my monitor team - who are using Nagios - say the server are not being monitor

so check netstat -lnu and I see all is OK and snmp service is running fine
what else should I check about this port 161? to see if it is really opened and listening?


I forgot to add the netstat -lun output

Code:
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address               Foreign Address             State

udp        0      0 0.0.0.0:161                 0.0.0.0:*

thanks a lot
Last edited by karlochacon; 06-08-2010 at 08:30 PM..
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LEARN ABOUT CENTOS

nagios

nagios(8)                                                             Nagios                                                             nagios(8)

NAME

       Nagios - network/systems status monitoring daemon

SYNOPSIS

       nagios [-h] [-v] [-s] [-d] <main_config_file>

DESCRIPTION

       nagios  is a daemon program that monitors the status of various network accessible systems, devices, and more. For more information, please
       consult the online documentation available at http://www.nagios.org, or on your nagios server's web page.

OPTIONS

       main_config_file
              The main configuration file.  On openSUSE systems this defaults to /etc/nagios/nagios.cfg

       -h     A helpful usage message

       -v     Reads all data in the configuration files and performs a basic verification/sanity check.  Always make sure you verify  your  config
              data before (re)starting Nagios. You can also use the Nagios init script to verify your configuration - try: rcnagios check_verbose

       -s     Shows projected/recommended check scheduling information based on the current data in the configuration files.

       -d     Starts Nagios in daemon mode (instead of as a foreground process).

FILES

       /etc/nagios
              Default configuration directory for nagios

AUTHOR

       Nagios  is  written  and maintained by Ethan Galstad <nagios@nagios.org>.  This manual page was written by sean finney <seanius@debian.org>
       for the Debian GNU/Linux operating system (but it may be freely used, modified, and redistributed by others) and adapted by Lars Vogdt  for
       openSUSE.

sean finney, Lars Vogdt                                       February 2006, May 2010                                                    nagios(8)