Fix “device excluded by a filter” LVM error.
Categories
Category: SysOps
System Operations
Create the simplest possible firewall using nftables framework with relaxed rules that will allow all outgoing traffic, incoming ICMP echo requests, and ssh connections.
Display physical volumes associated with the volume group.
Categories
How to use templates inside shell scripts
Use templates inside shell scripts by substituting environment variables.
Use versionlock plugin to protect packages from being updated on the CentOS operating system.
Categories
How to display strace summary
I have already described how to strace PHP-FPM processes, but you can also display a strace summary to get detailed information about count time, calls, and errors for each syscall.
Categories
How to define JAVA_HOME
Determine and set JAVA_HOME to execute Java command-line applications.
Monitor file system events to restart service on every configuration change.
Fix multipath daemon error about missing path when using VirtualBox.
Categories
How to log specific Varnish requests
Use varnishlog to log specific Varnish requests.