Disable SSH OS Banner on FreeBSD | By default, FreeBSD includes an SSH banner that identifies the exact OS. For best security, you may wish to disable broadcasting this information to the world. Here’s the tip!
Two-Factor Auth Using Key and Password with OpenSSH 6.2 or Higher | Now that most distros are shipping OpenSSH 6.2 or later, check out this feature to enable two-factor auth with a key and also a password!
Install OpenSSH 6.x on Debian Wheezy from Wheezy Backports | OpenSSH 6.x has many awesome new features such as two-factor auth with key and a password. To get this newer version on Debian Wheezy, use backports. I’ll show you how!
Use Google Authenticator For Two-Factor SSH Authentication in Linux | For a very secure and convenient way to add two-factor ssh auth to your Linux server, you can use Google Authenticator. I’ll show you how to set this up!
Troubleshooting SSH Server Logs and Error Messages | ssh logs can have various messages that are all difficult to interpret as the exact meaning is all based on the situation or circumstance. Below are some general tips to keep in mind if you run across any of these messages in your logs! Example 1 If you see this, someone is trying random logins
Troubleshoot ssh Authentication Failure | ssh has a built in debug mode from the client side to provide information in troubleshooting a connection. This will provide information such as mismatch in client/server configuration options, key conflicts, permission problems, and various other useful tidbits. To connect in debug mode, simply add -vvv to the end. You can use up to three