The U.S. Computer Emergency Readiness Team (CERT) has issued a warning for what it calls "active attacks" against Linux-based computing infrastructures using compromised SSH keys.

Using a set of public/private keys to allow you to log into a remote Linux system or run commands using ssh without a password can be very convenient, but setup is just tad tricky. Here's how and ...

On remote Unix, Linux, or MacOS machines the public key needs to be placed into a file called ~/.ssh/authorized_keys file using your favorite text editor. There can be multiple public keys in the ...

On the rare occasion that my Linux desktop freezes, I have a few tricks up my sleeve that keep me from having to do a hard reboot on my machine.

An international research team from the Max Planck Institute (MPI) for Informatics in Saarbrücken, Germany, and the Delft ...

OpenBSD has recently stressed to us the value of key rotation by their use of “Signify” distribution release signatures. We have realized that SSH keys should also rotate, to reduce the risk of ...

U.S.-CERT is warning of attacks targeting Linux-based infrastructures using compromised SSH keys. After access is gained to the system, local kernel exploits are used to gain root access. A ...

For example, if you have created three private keys—your default key, id_dsa, and two other keys called backup and monitor to use for different tasks—you simply would call SSH with the -i parameter.