Categories
SysOps

How to use virtual memory filesystem to store Varnish Shared memory Log

Varnish Shared memory Log can put a major strain on the disk (I/O write operations). The solution is to store it on the virtual memory filesystem.

Categories
SysOps

How to determine which services need to be restarted

Use needrestart utility to determine which services need to be restarted after the upgrade.

Categories
WebOps

How to install XWiki

Install the Advanced Open Source Enterprise Wiki.

Categories
SysOps

How to access rdiff-backup repository using fuse

Use FUSE (filesystem in userspace) to access rdiff-backup repository.

Categories
DevOps

How to install OpenJDK 8 on Debian

Use AdoptOpenJDK/Eclipse Adoptium to install OpenJDK 8 (LTS)/OpenJDK 11 (LTS) or OpenJDK 15 (Latest) using Eclipse OpenJ9 or HotSpot Java virtual machine.

Categories
SysOps

How to execute rc.local shell script during boot using systemd

Execute rc.local shell script during boot using systemd compatibility generator.

Categories
SysOps

How to perform shell script analysis

Perform shell script analysis using shellcheck, a shell script static analysis tool.

Categories
SysOps

How to display packages that are no longer required

Display packages that were installed automatically to satisfy various dependencies and are no longer required.

Categories
SysOps

How to calculate Elasticsearch average documents number in recent days

Calculate Elasticsearch’s average documents number in recent days using a shell script.

Categories
SysOps

How extend existing ext4 filesystem using systemd service

Use systemd service to automatically extend existing ext4 filesystem on boot or on-demand to optimize virtual machine configuration.