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 ...

A newly discovered Linux malware, which has evaded detection for over a year, allows attackers to gain persistent SSH access and bypass authentication on compromised systems. Nextron Systems security ...

If you need remote access to a machine, you'll probably use SSH, and for a good reason. The secure shell protocol uses modern cryptography methods to provide privacy and confidentiality, even over an ...

Security researchers have discovered an unusually evasive Linux backdoor, undetected even by VirusTotal, compromising systems as a malicious pluggable authentication module (PAM). Dubbed “Plague” by ...

Jack Wallen shows you how to set up both two-factor authentication and SSH key authentication for a rock-solid remote login of your Linux servers. Chances are you administer your Linux machines by way ...

Two-factor authentication should be considered a must-use. Jack Wallen walks you through the new method of adding this security layer to your Linux desktops and servers. If you’re a Linux ...