How Do I Harden Ssh in Ubuntu?
Contents How Do I Lock Down Ssh? Lock Ssh Down Restrict Access to Port 22. Start by Checking to See If the Default Ssh Port (Port 22) Is Open to the World. …...
Contents
How do I lock down SSH?
Lock SSH down
- Restrict access to port 22. Start by checking to see if the default SSH port (port 22) is open to the world. …
- Require a VPN for remote access. …
- Deny root access. …
- Implement key-based authentication. …
- Disable password-based authentication. …
- Rotation. …
- MFA.
Must Read
How do I setup a secure SSH server?
Top 10 Tips to Secure SSH Your Server
- Use a different port than 22. …
- Use Protocol SSH 2 only. …
- Disable Direct root login. …
- Use public_keys instead of passwords. …
- Enable two-factor authentication. …
- Disable Empty Passwords. …
- Use strong passwords and passphrase for ssh users/keys. …
- Configure Idle Timeout Interval.
Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.
