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tutorial:adm:server_monitoring [2019/03/25 10:25]
fiserp [Monitoring of server with CzechIdM] 		tutorial:adm:server_monitoring [2019/03/25 10:28]
fiserp [Implementation]
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 ===== Implementation ===== ===== Implementation =====
 We will use nrpe and probes from the standard system packages. We have epel repository enabled. We will use nrpe and probes from the standard system packages. We have epel repository enabled.
-  * NRPE daemon will listen on 5666\tcp (its default port). Open the port in your iptables by adding the rule: //-A INPUT -m state --state ESTABLISHED,RELATED -p tcp --dport 5666 -j ACCEPT//. +  * NRPE daemon will listen on 5666\tcp (its default port). Open the port in your iptables by adding the rule: ''-A INPUT -m state --state ESTABLISHED,RELATED -p tcp --dport 5666 -j ACCEPT''. 
-  * All probes are located in their default installation location ///usr/lib64/nagios/plugins///. +  * All probes are located in their default installation location ''/usr/lib64/nagios/plugins/''. 
-  * We use one external probe check_mem which can be downloaded here: [[https://exchange.nagios.org/directory/Plugins/System-Metrics/Memory/check_mem-2Esh/details]]. This probe, however, returns bad results on RHEL7 because of the different meaning of the //free// command output. The fixed version is:+  * We use one external probe check\_mem which can be downloaded here: [[https://exchange.nagios.org/directory/Plugins/System-Metrics/Memory/check_mem-2Esh/details]]. This probe, however, returns bad results on RHEL7 because of the different meaning of the ''free'' command output. The fixed version is:
 <code bash> <code bash>
 #!/bin/bash #!/bin/bash
  
-# Modified for CentOS7 - Petr Fiser, BCV solutions s.r.o.+# Original version https://exchange.nagios.org/directory/Plugins/System-Metrics/Memory/check_mem-2Esh/details 
 +# Modified for CentOS7/RHEL7 - Petr Fiser, BCV solutions s.r.o.
 if [ "$1" = "-w" ] && [ "$2" -gt "0" ] && [ "$3" = "-c" ] && [ "$4" -gt "0" ]; then if [ "$1" = "-w" ] && [ "$2" -gt "0" ] && [ "$3" = "-c" ] && [ "$4" -gt "0" ]; then
  
  • by urbanl