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Special Forums UNIX and Linux Applications Infrastructure Monitoring SNMP - what am I seeing? Post 302465500 by msarro on Friday 22nd of October 2010 03:23:55 PM

10-22-2010

Registered User

SNMP - what am I seeing?

Hey everyone!
First, thank you in advance for any help you can provide. I'm a fairly experienced linux user, and just getting my feet wet in solaris for a project here at the office. I am trying to use snmpget on a linux box to get information from a Solaris 10 system. The solaris 10 system has snmpdx running (solstice, used for SNMP by a vendor solution that is installed). However it also appears to have snmpd running. Here are the commands and output that I get:

Code:

bash-3.00# ps -ef |grep snm
    root   775     1   0   Mar 10 ?         345:35 /usr/lib/snmp/brdsftMIB2 -r -c /usr/local/broadworks/bw_base/conf -p 10161
    root   726     1   0   Mar 10 ?           0:00 /usr/lib/dmi/snmpXdmid -s as1
    root   755     1   0   Mar 10 ?           9:16 /usr/sfw/sbin/snmpd
    root   717     1   0   Mar 10 ?           0:12 /usr/lib/snmp/snmpdx -y -c /etc/snmp/conf
    root  2061 27184   0 19:23:21 pts/3       0:00 grep snm
  bworks  8672  8663   0   Oct 06 ?          31:42 /usr/local/java/java_base/bin/java -Dp=openclientserver -server -Docs.snmp.comp
  bworks  8421  8412   0   Oct 06 ?         154:45 /usr/local/java/java_base/bin/java -Dp=snmp -XX:ParallelGCThreads=2 -classpath 
  bworks  8410     1   0   Oct 06 ?           0:00 /usr/bin/perl ./bwpmd -snmp -d /var/broadworks/logs/snmp

Code:

bash-3.00# lsof -i -nP |grep snm
snmpdx      717   root    3u  IPv4 0x60000942040      0t0  UDP *:17
snmpdx      717   root    4u  IPv4 0x60000942240      0t0  UDP *:17
snmpdx      717   root    5u  IPv4 0x6000249fa80      0t0  UDP *:17
snmpXdmid   726   root    0u  IPv4 0x6000249f680      0t0  UDP *:17
snmpXdmid   726   root    1u  IPv4                         TCP no TCP/UDP/IP information available
snmpXdmid   726   root    5u  IPv4 0x6000249f880      0t0  UDP *:17
snmpXdmid   726   root    6u  IPv4 0x6000249f280      0t0  UDP *:17
snmpd       755   root   13u  IPv4 0x6000249ec80      0t0  UDP *:17
snmpd       755   root   14u  IPv4 0x6000249f080      0t0  UDP *:17
snmpd       755   root   15u  IPv4 0x6000249ee80      0t0  UDP *:17
snmpd       755   root   16u  IPv4 0x600015040c0      0t0  UDP *:17
snmpd       755   root   17u  IPv4 0x60002b65b00      0t0  UDP *:17
snmpd       755   root   18u  IPv4 0x60002b65900      0t0  UDP *:17

This shows the services running on UDP port 17. The problem is if I try and query remotely on port 17, everything fails. Why does lsof show port 17 and not 161? In fact typing

Code:

lsof -i |grep 161

doesn't return a single thing.

Any help would be appreciated. Both daemons show as running, and I'd like to figure out what ports they're running, and then figure out what information is attainable from each daemon. I'm assuming snmpdx is just vendor related stuff, because from my research snmpd should be for OS stuff. Any thoughts?
Thanks!
-Matthew

msarro

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SNMPDF(1)							     Net-SNMP								 SNMPDF(1)

NAME

       snmpdf - display disk space usage on a network entity via SNMP

SYNOPSIS

       snmpdf [COMMON OPTIONS] [-Cu] AGENT

DESCRIPTION

       snmpdf  is  simply  a  networked  verison of the typical df command.  It checks the disk space on the remote machine by examining the HOST-
       RESOURCES-MIB's hrStorageTable or the UCD-SNMP-MIB's dskTable.  By default, the hrStorageTable is preferred as it typically  contains  more
       information.  However, the -Cu argument can be passed to snmpdf to force the usage of the dskTable.

       AGENT  identifies  a  target SNMP agent, which is instrumented to monitor the gievn objects.  At its simplest, the AGENT specification will
       consist of a hostname or an IPv4 address.  In this situation, the command will attempt communication with the agent, using UDP/IPv4 to port
       161 of the given target host. See the snmpcmd(1) manual page for a full list of the possible formats for AGENT.

       See the snmpd.conf(5) manual page on setting up the dskTable using the disk directive in the snmpd.conf file.

OPTIONS

       COMMON OPTIONS
	       Please see snmpcmd(1) for a list of possible values for COMMON OPTIONS as well as their descriptions.

       -Cu     Forces  the command to use dskTable in mib UCD-SNMP-MIB instead of the default to determine the storage information. Generally, the
	       default use of hrStorageTable in mib HOST-RESOURCES-MIB is preferred because it typically contains more information.

EXAMPLES

       % snmpdf -v 2c -c public localhost

       Description	 size (kB)	   Used    Available Used%
       /		   7524587	2186910      5337677   29%
       /proc			 0	      0 	   0	0%
       /etc/mnttab		 0	      0 	   0	0%
       /var/run 	   1223088	     32      1223056	0%
       /tmp		   1289904	  66848      1223056	5%
       /cache		    124330	   2416       121914	1%
       /vol			 0	      0 	   0	0%
       Real Memory	    524288	 447456        76832   85%
       Swap Space	   1420296	 195192      1225104   13%

SEE ALSO

       snmpd.conf(5), snmp.conf(5)

V5.6								    25 Jul 2003 							 SNMPDF(1)

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