Guides about 2fa
- Secure your client account with two-factor authentication Your client account controls your servers, domains and payments. Two-factor authentication stops anyone who learns your password from signing in. Beginner 6 min
- SSH hardening: lock down OpenSSH on Ubuntu and Debian With keys in place, a few more SSH settings shrink the attack surface further. Apply them in one drop-in file and verify each change before you log out. Intermediate 20 min