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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 X11R4

monitor

monitor(1)							  monitor command							monitor(1)

NAME

       monitor - receive logging information from LPD

SYNOPSIS

       monitor [ -u ] [ -t ] [ port ]

DESCRIPTION

       The  monitor  program is a template for a printer status monitoring program.  It will open the specified TCP and/or UDP port, and then wait
       for accounting or other information to be sent.	It prints this information on it standard output.

OPTIONS

       -u   wait for connections on the UDP port.

       -t   wait for connections on the TCP port.

       port Use the specified port number.

EXIT STATUS

       The following exit values are returned:

       zero (0)       Successful completion.

       non-zero (!=0) An error occurred.

SEE ALSO

       lpd.conf(5), lpc(8), lpd(8), checkpc(8), lpr(1), lpq(1), lprm(1), printcap(5), lpd.conf(5), pr(1), lprng_certs(1), lprng_index_certs(1).

AUTHOR

       Patrick Powell <papowell@lprng.com>.

HISTORY

       LPRng is a enhanced printer spooler system with functionality similar to the Berkeley LPR software.  The LPRng developer  mailing  list	is
       lprng-devel@lists.sourceforge.net; subscribe by visiting https://lists.sourceforge.net/lists/listinfo/lprng-devel or sending mail to lprng-
       request@lists.sourceforge.net with the word subscribe in the body.
       The software is available via http://lprng.sourceforge.net

LPRng								    2006-12-09								monitor(1)