#Cisco switch port numbering how to#
#Cisco switch port numbering install#

#Cisco switch port numbering how to#

How To Monitor Remote Linux Host using Nagios 3.

How To Monitor Remote Windows Machine Using Nagios on Linux.

Since Nagios is free software, spending few dollars on the books can be the best investment you can make.Р”Р‡ollowing are few awesome Nagios articles that you might find helpful. I strongly recommend that you read both of these books to gain a detailed understanding on Nagios. These are the two best nagios books that covers the latest Nagios 3.

#Cisco switch port numbering install#

Compile and install nagios pluginsРІР‚Сњ in the Nagios 3.0 jumpstart guide. Note: After youРІР‚в„ўve installed net-snmp and net-snmp-utils, re-compile and re-install nagios plugins as explained in РІР‚Сљ6. In my case, I was missing the net-snmp-utils package and installing it resolved this issue as shown below. Solution2: Make sure both net-snmp and net-snmp-util packages are installed. Issue2: Nagios UI displays РІР‚СљReturn code of 127 is out of bounds РІР‚вЂњ plugin may be missingРІР‚Сњ error message for Port Link Status. Solution1: make sure the *.log file defined in the check_local_mrtgtraf service is pointing to the correct location. Issue1: Nagios GUI displays РІР‚Сљcheck_mrtgtraf: Unable to open MRTG log fileРІР‚Сњ error message for the Port bandwidth usage Verify the status of the switch from the Nagios web UI: as shown below:Р”Р‡ig: Nagios GUI displaying status of a Network Switch Restart the nagios server to start monitoring the VPN device. Things look okay - No serious problems were detected during the pre-flight check # /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg Verify the nagios configuration to make sure there are no warnings and errors. Validate configuration and restart nagios Add new hostgroup for switches in switch.cfgР”Р„dd the following switches hostgroup to the /usr/local/nagios/etc/objects/switch.cfg file. # grep switch.cfg /usr/local/nagios/etc/nagios.cfgР”В¬fg_file=/usr/local/nagios/etc/objects/switch.cfg 2. Uncomment the switch.cfg line in /usr/local/nagios/etc/nagios.cfg as shown below. In this article, IРІР‚в„ўll explain how to configure Nagios to monitor network switch and itРІР‚в„ўs active ports. More than that, if warning levels are setup properly, Nagios will proactively alert you before a problem becomes critical.Р”В®arlier I wrote about, how to setup Nagios to monitor Linux Host, Windows Host and VPN device. I use Nagios intensively and it gives me peace of mind knowing that I will get an alert on my phone, when there is a problem. Using Nagios plugins you can monitor pretty much monitor anything.

Nagios is hands-down the best monitoring tool to monitor host and network equipments.