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Color text output on bash scripts
Users who have been using Linux for awhile often learn that creating a basic script is a good way to run multiple, often-repeated commands. Adding a little color to scripts can additionally provide nice feedback. This can be done in a fairly straight-forward way by using the tput command. A common way of doing this […]
How to Set up Nginx High Availability with Pacemaker and Corosync
Prerequisites 2 or more CentOS 7 Serverpre web01 10.0.15.10 web02 10.0.15.11 web03 10.0.15.12 Floating IP Address 10.0.15.15 Root Privileges What we will do: Map the Host File Install Epel Repository and Nginx Install and Configure Pacemaker, Corosync, and Pcsd Create and Configure the Cluster Disable STONITH and Ignore the Quorum Policy Add the Floating-IP and […]
Send SNMP Traps from Nagios to Remote Management Host
1. Add ‘send snmp trap’ command to nagios vim /usr/local/nagios/etc/objects/commands.cfg define command{ command_name send_snmptrap command_line /usr/bin/snmptrap -v 2c -c public 10.50.24.34 ” NAGIOS-NOTIFY-MIB::nSvcEvent nSvcHostname s “$HOSTNAME$” nSvcDesc s “$SERVICEDESC$” nSvcStateID i $SERVICESTATEID$ nSvcOutput s “$SERVICEOUTPUT$” } 2. Add this event and enable the event to services which needed to send traps vim /usr/local/nagios/etc/objects/localhost.cfg define service{ […]