tech notes from my desk
Here is the guided tour for adding a new filesystem onto VCS. Make sure the disk is already provisioned and then proceed with updating vfstab||fstab in order to mount the con-cluster filesystem. The application filesystem will be managed by the…
Need to backup all the databases daily mysqldump --all-databases --single-transaction --quick --lock-tables=false > full-backup-$(date +%F).sql -u root -p Then edit in home directory a login connection file .mylogin.cnf vi /home/admin/.mylogin.cnf [client] user = root password = "the db password" Limit…
Time for some upgrades and backups of the satellite server, first inspect the current services running and enabled [root@rhel75lab ~]# katello-service list Redirecting to 'foreman-maintain service' Running Service List ================================================================================ List applicable services: dynflowd.service enabled foreman-proxy.service enabled httpd.service enabled postgresql.service…
Quick reminder on how to use date command: %a – Displays the locale’s abbreviated weekday name. %A – Displays the locale’s full weekday name. %b – Displays the locale’s abbreviated month name. %B – Displays the locale’s full month name.…
In continuation of the previous reverse proxy solution, here its using apache2 in /etc/apache2/sites-available/kewrunner.com.conf (for example). <VirtualHost *:80> ServerName kewrunner.com ServerAlias www.kewrunner.com ServerAdmin webmaster@kewrunner.com ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined ProxyRequests Off <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPass…
Allow the multiple ports in entire range by ufw (tcp/udp) kewrunner@serv01:~$ sudo ufw allow 82301:82320/tcp [sudo] password for kewrunner: Rule added Rule added (v6) kewrunner@ser01:~$ sudo ufw allow 82301:82320/udp Rule added Rule added (v6)
Always keep running into this snag when it comes to uploading large files. Updating the php.ini parameters. This fixes lots of WordPress issues. upload_max_filesize = 512M this should do just fine on the new server :) Other useful params max_execution_time…
Connect into mysql from terminal $ sudo mysql -u root -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 25680 Server version: 10.3.22-MariaDB-1ubuntu1 Ubuntu 20.04 Copyright (c) 2000, 2018, Oracle,…
Im running CentOS in the lab environment, running into some issues with NOC saying botnet hijacked one or some of my hosts. Installing LMD found in the epel-release. yum -y install epel-release Also need to make sure inotify so that…
Cluster Software NameDetailRequiredcmanRed Hat Cluster ManagerYeslvm2-clusterCluster extensions for userland logical volume management toolsYesrgmanagerOpen Source HA Resource Group Failover for Red Hat ClusterYesricciRemote Cluster and Storage Management SystemYes Cluster Services DetailService NameStartup OrderCluster Manager: Manages the following services qdiskd, fenced, dlm_controld…