Putty is an open-source terminal emulator that supports several network protocols like Telnet, SSH, Rlogin, SCP, and Raw Socket. The initial version of putty is dated back to January 8, 1999, and was designed for the Windows Operating system but now it is supporting other operating systems like macOS and Linux too. But I have
putty - DesignLinux
Configure “No Password SSH Keys Authentication” with PuTTY on Linux Servers
SSH (Secure SHELL) is one of the most used network protocols to connect and login to remote Linux servers, due to its increased security provided by its cryptographic secure channel established for data flow over insecure networks and its Public Key Authentication. While using SSH passwords to log in to remote Linux servers can provide