Home
Categories
Cloud Security

Cloud Security

VPS hardening, SSH, firewalls, private networking, and access control for servers.

Aug 29, 2026 ·

Asif Mughal · 111

PHP 8.1 Is End of Life. Here Is How to Check and Upgrade Safely

PHP 8.1 stopped getting security patches on December 31, 2025, and roughly half of top PHP sites are reportedly still running an end of life version. Here is how to check what you are actually running, and how to upgrade without breaking your WordPress site or Laravel app.

Aug 29, 2026 ·

Asif Mughal · 310

Why Your Sudoers Rule Stopped Working on Ubuntu 26.04 (sudo-rs Wildcard Change)

Ubuntu 26.04 LTS quietly made sudo-rs the default sudo. If your sudoers rules use a wildcard inside command arguments, they will silently stop matching. Here is what changed and how to fix it.

Aug 29, 2026 ·

Asif Mughal · 96

Locked Out of Your VPS After Enabling UFW? Here's the Fix (and How to Avoid It)

Enabling UFW without allowing SSH first is one of the most common ways people lock themselves out of a VPS. Here's the correct order, the gotcha if you've changed your SSH port, and how to recover if it's already happened.

Aug 26, 2026 ·

Asif Mughal · 229

Stop Exposing Port 22: SSH to Your VPS Over Tailscale Instead

Close port 22 to the public internet and SSH to your VPS only over your private Tailscale network instead. Setup steps, what it actually costs a solo developer (usually $0), and the single-point-of-failure trade-off worth planning for before you rely on it.

Aug 25, 2026 ·

Asif Mughal · 97

How to Disable SSH Password Login on a VPS (And Make It Actually Stick)

Disable SSH password login and switch to key-only authentication on a VPS — including the cloud-init config override that silently breaks this on most guides.