Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
PuTTY - Popular free terminal application. Mostly used as an SSH client.
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
RANCID - RANCID - Really Awesome New Cisco confIg Differ.
ZOC Terminal - ZOC is a professional SSH/telnet client and terminal emulator. With its impressive list of emulations and features, it is a snap to access hosts and mainframes via secure shell, telnet, serial cable, modem/isdn and other methods of communication.