Practical Linux administration guides covering services, packages, configuration and day-to-day server operations.
On the RHEL family the PHP2Shell fix depends on which module stream or repository supplies your PHP. How to find out, update with dnf or Remi, restart php-fpm and confirm the fix is in.
Ubuntu and Debian ship PHP2Shell fixes as backports, so php -v still shows the old number. The fixed versions, the commands to update and restart, and how to prove the fix is in.
When dnf refuses to update because it cannot download repository metadata, the cause is usually one dead repo, not AlmaLinux itself. How to find that repo and fix it without breaking updates.
The error says the disk is full, but df says it is not. Here is the order we check things in on a live server: inodes first, then deleted-but-open files, tmpfs and reserved blocks.
When the key is right and SSH login still fails, the answer is on the server: permissions, SELinux labels, sshd rules and key types. How to check each, and how to recover a lockout.
A practical recovery workflow for a Linux server that stops booting after a kernel update, from selecting the previous kernel to repairing initramfs and GRUB from rescue mode.
A practical schedule for checking Linux server health, security, backups, updates, capacity and recovery readiness without relying on guesswork.
Before we jump into the installation and configuration, lets get to an introduction to Jira. For those who are new to Jira, I would suggest you to go through the […]
Running Jira behind a reverse proxy is common, but SSL termination is where most administrators get stuck.
Running Python frameworks such as Django or Flask behind Nginx demands more than a basic configuration.
Linux server management is the continuing work required to keep the operating system and its services secure, recoverable, observable and suitable for the applications they run.
A practical explanation of how to list installed perl modules on your server, with the steps and checks server administrators need to complete the work reliably.
