Trace a Zabbix database socket error after unattended-upgrade to a blocked service restart. Follow the recovery steps and systemd timeout configuration for the Ubuntu 26.04, Zabbix 7.4, and MariaDB 11.8 setup.
Diagnose a Jenkins temporary-space warning after upgrading to Ubuntu 26.04. Check the capacity of the tmpfs-mounted /tmp directory and adjust the node monitor settings for a low-memory server.
I installed WireGuard on an Ubuntu 26.04 EC2 instance and connected to the instance through an AWS SSM Session Manager
When I connected to an Ubuntu 24.04 server using PuTTY, I could open vi, enter insert mode, and paste text
After running Kubernetes for a while, I noticed that some systems running inside my Kubernetes cluster started reporting low disk
In my previous post, I used EJBCA RA Web to issue ThingsBoard device certificates from an externally signed IoT device
This post explains a common (and confusing) failure mode when running EJBCA on WildFly with MariaDB/MySQL: An exception has occurred.JDBC
When Jenkins is authenticated by Keycloak (OIDC) and sits behind NGINX, “session timeout” is not a single knob. You can
WordPress email delivery can be unreliable when it uses PHP mail (password resets, contact form notifications, admin alerts). The fix
This guide enables ACME v2 on an existing Smallstep Step CA deployment, then shows how a host like test.maksonlee.com can
