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Configure SSH on Debian

Category: VPS Setup

Secure SSH on a Debian VPS by editing /etc/ssh/sshd_config—use

nano /etc/ssh/sshd_config

and set Port 2222 to avoid common scans PermitRootLogin no to disable root access and PasswordAuthentication no for key-only logins Generate keys locally with

ssh-keygen -t rsa -b 4096

then copy them via

ssh-copy-id user@ip -p 2222

Restart SSH with

systemctl restart sshd

and test with

ssh -p 2222 user@ip

—expect key-based login success This hardens your VPS against brute-force attacks ensuring safe CLI and FTP access

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