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SSH Config Checker
Paste sshd_config or sshd -T output to find password logins, root login, weak ciphers and other risky settings, with a ready-made fix. -
UFW Firewall Rule Builder
Tick the services your server runs and get ufw commands in a safe order, with SSH first, private databases locked to one IP and no lockouts. -
Content Security Policy Generator
Build a Content-Security-Policy header from the services your site uses, check it for weaknesses and copy it for Nginx, Apache or a meta tag. -
htpasswd Generator
Create password lines for Nginx and Apache basic authentication with bcrypt or APR1, hashed in your browser. -
security.txt Generator
Write a valid /.well-known/security.txt so researchers know how to report a vulnerability, or check an existing one against RFC 9116.
Server Security Tools
Harden a server step by step: check your SSH config, build firewall rules, write a Content Security Policy, protect a folder with a password and publish a security contact. Everything runs in your browser.