Ssh-Keygen

Granting temporary access to your servers (using signed SSH keys)

SSH has the capabilities to give a colleague or vendor temporary access to your systems. Learn how to install and configure the related SSH settings.

Summary

In need of support from a colleague or vendor, but don’t want to give them permanent access? SSH has an option to allow temporary access! Next time you need to provide temporary access for an hour or day, use this great option. Configuration We have two machines for this purpose. One is a system running Arch Linux, the client system. The other one is a server, running Ubuntu Linux. For temporary support, we have created a functional account support on the Ubuntu server.

Using SSH keys instead of passwords

Linux systems are usually managed remotely with SSH, often still using passwords. Time to switch over to SSH keys and here is how to do that.

Summary

Linux systems are usually managed remotely with SSH (secure shell). Still many administrators are using passwords, instead of keys. Keys not only boost security, it also makes managing systems much easier. Instead of entering your password for each server, you only have to do it once per session. When managing several systems per day, you will be wondering why you ever used password based authentication before. Generating the SSH key Depending on your desktop platform, we first have to create a key pair.