Updating Kernel on Oracle Linux with Ksplice
Oracle Linux come with Ksplice, it allow you to upgrade Kernel with out rebooting. To update kernel, run Example
Install clamav Antivirus on CentOS 7
ClamAV is provided by the EPEL repo. Install epel repo Install ClamAV with Back to ClamAV
Ubuntu 18.04 MariaDB 10.2 Too many open files
On my computer running Ubuntu 18.04, MriaDB stopped working. PHP application i run on my computer failed with error Application
OpenLiteSpeed
OpenLiteSpeed Binary Installation Install OpenLiteSpeed on CentOS LiteSpeed Web Server Install Zend OpCache on OpenLiteSpeed Server Monitor OpenLiteSpeed with monit
Linux whois command
Linux whois command is used to find who owns a domain or IP address. To see information about a domain,
CentOS 7 Grub 2
To regenerate grub config on CentOS 7, run If you use UEFI, run OVH CentOS 7 server grub rescue prompt
How to reinstall packages using yum
To reinstall a package with yum, run Example
Monitor Server with Prometheus and Grafana
Prometheus is used an open source software, that can collect metrics and alerting. You can download latest version oof Prometheus
PHP Script to monitor Apache/php-fpm
I moved a web site to new dedicated server. But for some reason, php-fpm crashed. I increased the max_children settings,
Install SSL for ISPConfig Control Panel
To add SSL for ISPConfig control panel, add the server hostname as a website in ISPConfig and enable the LetsEnrypt
Apachectl
apachectl command is used to interact with Apache web server. To see Apache status To list virtualhost info, run List
VestaCP SSL for mail server
VestaCP install self signed SSL for mail server by default. To install valid SSL, login to VestCP, go to sites.