Server & Admin Tools

Practical 2026 migration playbook from CentOS 7 or 8 to Rocky Linux 9 (or AlmaLinux 9). ELevate in-place path, fresh install path, pre-flight inventory, post-migration validation, common breaks and fixes.

In-depth comparison of the four Linux firewall tools in 2026: iptables, nftables, firewalld, ufw. Per-distro defaults, same rule in four syntaxes, performance and feature comparison, migration patterns, decision tree.

Deep-dive comparison of Linux network stacks (netplan, ifupdown, NetworkManager, systemd-networkd, wicked) across Ubuntu, Debian, Fedora, Rocky, Arch, openSUSE, Alpine. Static IP recipes, migration patterns, decision tree.

Pick your Linux distro (Ubuntu, Debian, Fedora, Rocky, Arch, openSUSE, Alpine) and a topic (network, firewall, services, logs, packages, users, system, storage), get the quick command, files, workflow, verify and...

Complete setup guide for Nagios Core on a Hyper-V Ubuntu 24.04 VM: provision the VM, install Nagios 4.5, configure HTTP / SSH / MySQL / disk probes, wire mail and...

Pick the right TLS versions and cipher suites for your server. Generates nginx, Apache, Caddy, HAProxy and IIS config based on security profile, audience and compliance constraint.

Server & Admin Tools: HTTP, SSL, Redirect, Compression and Uptime ChecksTools for checking website status, SSL, redirects, HTTP headers, compression, response time and server administration signals.HTTP Headers CheckerSecurity, cache and...

Check Gzip and Brotli response signals, compare available HEAD and GET headers, inspect Vary, cache and redirects, and judge compression with resource context.

Run repeated HTTP ping checks for a URL, measure response time, status, success rate, average latency, jitter and availability diagnostics.