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How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
This is the full step-by-step procedure to resync a master-slave replication from scratch: At the master: And copy the values of the result of the last command somewhere. Without closing the connection to the client (because it would release the read lock) issue the command to get a dump of the master: Now you can release the […]
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{ […]
Install Jenkins on Rocky Linux 9
Configure jenlkins repo. sudo wget -O /etc/yum.repos.d/jenkins.repo \ https://pkg.jenkins.io/redhat-stable/jenkins.repo sudo rpm –import https://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key sudo yum upgrade # Add required dependencies for the jenkins package sudo yum install fontconfig java-17-openjdk sudo yum install jenkins sudo systemctl daemon-reload Weekly release A new release is produced weekly to deliver bug fixes and features to users and plugin developers. […]