Linux VPS
Run a By-Hoster Linux VPS: first SSH login, SSH keys, firewall and fail2ban, installing applications, additional IPs, rescue console and diagnosing an unreachable server.
Articles
First SSH login to your Linux VPS
The credentials you receive on delivery, the connection command from Windows, macOS and Linux, the host fingerprint and the first five thing...
Using SSH keys instead of a password
Generate a key pair, add it to your VPS from the client area or the command line, then disable password authentication without locking yours...
Securing and maintaining your Linux VPS: firewall, fail2ban and updates
The baseline that protects an exposed server: ufw or firewalld, automatic banning with fail2ban, security updates and service monitoring.
Installing an application or a control panel on your Linux VPS
The one-click applications offered at order time and on reinstallation, what you see while they install, and how to install something yourse...
Networking: ordering an additional IP and configuring it
The Network tab of your VPS, the MAC locked to each IP, ordering an extra address and configuring it on Debian, Ubuntu or Rocky Linux.
Rescue console, snapshots and reinstallation of a Linux VPS
The three recovery tools in the client area: the console that replaces SSH, the snapshot that undoes a failed operation, and the reinstallat...
Diagnosing an unreachable Linux VPS
A seven-step method to find where the fault lies before opening a ticket, and the exact list of details that speed up the answer.
Changing the root password of your Linux VPS
From the client area or from the command line: both methods, the password rule that is enforced, and why a KVM VPS has to reboot before the...
Resetting a lost root password
Regaining control of a Linux VPS whose password is lost: the client area first, then GRUB from the rescue console, plus the classic pitfalls...
Protecting an Nginx site against an application-layer (L7) attack
Network protection filters volume, not credible HTTP requests. How to measure the attack, rate-limit with Nginx, ban with fail2ban, and whic...
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