How to combine SSH key authentication and two-factor authentication on Linux Your email has been sent Jack Wallen shows you how to set up both two-factor authentication and SSH key authentication for ...

Authentication is a mechanism that verifies whether an entity is who it claims to be. On a Linux system, applications, such as su, passwd or login, are used to authenticate users before they are given ...

If you run a publicly accessible Web server for your own use (and let's face it, if you're reading Linux Journal, there's a very good chance you do), how do you go about limiting the risk of someone ...

SSH is a tool I use every single day to log into remote Linux servers and take care of my admin tasks. Without SSH, my days would be more complicated and less secure. That doesn’t mean, however, that ...

We need 2-factor authentication on our VPN servers. We used Duo for 2-factor on our apps. We have a lot of Linux users. Several leading VPN providers do not integrate with Linux (e.g. VPN secure does ...