Nagios: Which services should I monitor on different roles of servers?

Posted by Itai Ganot on Server Fault See other posts from Server Fault or by Itai Ganot
Published on 2014-06-12T09:13:17Z Indexed on 2014/06/12 9:26 UTC
Read the original article Hit count: 243

Filed under:

monitoring

|

nagios

|

nagios-plugins

I've started working in a new workplace and my first task is to build a Nagios server and configure it to monitor the servers in the network. Since I'm starting from scratch I wanted to hear from you, experienced users, which checks should I configure for each role? For example, there are some basic checks which I run on each Linux machine I monitor: SSH, Ping, Load, Current Users, Swap Usage, etc... Now my question is, which specific checks should I run for a DataBase server, for a Networking Switch, for Httpd servers? (I currently monitor how many httpd processes are running) Thanks in advance

© Server Fault or respective owner

Related posts about monitoring

Issues with signal handling [closed]

as seen on Programmers - Search for 'Programmers'
I am trying to actually study the signal handling behavior in multiprocess system. I have a system where there are three signal generating processes generating signals of type SIGUSR1 and SIGUSR1. I have two handler processes that handle a particular type of signal. I have another monitoring process… >>> More
JMX Based Monitoring - Part Two - JVM Monitoring

as seen on Oracle Blogs - Search for 'Oracle Blogs'
This the second article in the series focussing on the JMX based monitoring capabilities possible with the Oracle Utilities Application Framework. In all versions of the Oracle utilities Application Framework, it is possible to use the basic JMX based monitoring available with the Java Virtual Machine… >>> More
JMX Based Monitoring - Part Three - Web App Server Monitoring

as seen on Oracle Blogs - Search for 'Oracle Blogs'
In the last blog entry I showed a technique for integrating a JMX console with Oracle WebLogic which is a standard feature of Oracle WebLogic 11g. Customers on other Web Application servers and other versions of Oracle WebLogic can refer to the documentation provided with the server to do a similar… >>> More
JMX Based Monitoring - Part Four - Business App Server Monitoring

as seen on Oracle Blogs - Search for 'Oracle Blogs'
In the last blog entry I talked about the Oracle Utilities Application Framework V4 feature for monitoring and managing aspects of the Web Application Server using JMX. In this blog entry I am going to discuss a similar new feature that allows JMX to be used for management and monitoring the Oracle… >>> More
Keeping track of File System Utilization in Ops Center 12c

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Enterprise Manager Ops Center 12c provides significant monitoring capabilities, combined with very flexible incident management. These capabilities even extend to monitoring the file systems associated with Solaris or Linux assets. Depending on your needs you can monitor and manage incidents, or you… >>> More

Related posts about nagios

Nagios Creating lots of zombie process

as seen on Server Fault - Search for 'Server Fault'
In my monitoring box, I have lots of zombie process created by nagios and they gets remove quickly also. I am using active checks to perform monitoring of my servers. I accumulated the defunct processes created using the following command: $ top -d 0.25 -b -n 20 > topout.txt This collected the… >>> More
Nagios: NRPE: Unable to read output, Can't find the reason, can you?

as seen on Server Fault - Search for 'Server Fault'
I have a Nagios server and a monitored server. On the monitored server: [root@Monitored ~]# netstat -an |grep :5666 tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN [root@Monitored ~]# locate check_kvm /usr/lib64/nagios/plugins/check_kvm [root@Monitored ~]#… >>> More
nagios NRPE: Unable to read output

as seen on Server Fault - Search for 'Server Fault'
I currently set up a script to restart my http servers + php5 fpm but can't get it to work. I have googled and have found that mostly permissions are the problems of my error but can't figure it out. I start my script using /usr/lib/nagios/plugins/check_nrpe -H bart -c restart_http This is the… >>> More
Nagios returns "No output returned from plugin" running process

as seen on Server Fault - Search for 'Server Fault'
I have a nagios server and a bunch of nagios clients that i currently monitor. All the clients are setup with the following nrpe configuration. check_users, check_load... metrics are successfully displayed on the nagios interface but check_nginx and check_server_proxy displayed as "Unknown"-(No output… >>> More
Error with Apache, Nagios and Snorby integration

as seen on Server Fault - Search for 'Server Fault'
I'm trying to use apache to serve two different websites (Nagios and Snorby). The problem is that when I try to see the "/snorby" website, apache sends me the "It works" page. If I try to access to "/nagios" it works perfectly. Snorby is running under ruby passenger .This are the config files. <VirtualHost… >>> More