Copying those SSH keys around
Under linux, use the command “ssh-copy-id user@host” rather than playing around with the authorized_keys files and the id_dsa.pub or id_rsa.pub files. Â Life is so much easier.
Linux systemd can be your friend
systemd messes with your mind. Â Definitely. Â The easy management of /etc/init.d/ files or /etc/rc.d files is easy to grasp; easy to get the mind around a simple ordering of complex events. Replace that with systemd, and the brain wants to revolt. But there are some upsides to this trend. Â systemd is smart. Â It can do
What is this “notty” host?
In looking at the process listing on a linux server, an administrator may see a process listed as “sshd: root@notty”. An administrator, even a seasoned one, may immediately wonder “what is this ‘notty’ host?” and start down the path of trying to determine what host that is. However, sit back and take a deep breath: