Do you manage multiple different machines with protocols like SSH, RDP, VNC, or SFTP? If so, you need Remmina. Remmina lets you manage multiple machines from one application. No more needing to reference a file with lists of IP addresses and hostnames.
Remmina is a free and open-source progam that is, “aiming to be useful for system administrators and travellers, who need to work with lots of remote computers”.
For Ubuntu users, there is an official PPA for the latest stable version:
sudo apt-add-repository ppa:remmina-ppa-team/remmina-next
sudo apt update && sudo apt install remmina remmina-plugin-rdp remmina-plugin-secret remmina-plugin-spice
Remmina allows you to group different machines so finding them is easy. A tray icon is also added, leaving you no more than two clicks away from your boxes. For someone like me who frequently has to connect to machines to help fix a troublesome document or web-page for users, it makes life easy.
Side-note: if you’re using VNC, make sure to set the color depth and quality higher if you’re on the same LAN as the VNC server. For RDP you can go to the Advanced tab and increase the quality as well.