PuTTY-to-OpenSSH

Convert your exported list of PuTTY accounts to a OpenSSH configuration file.

Rationale: For those who SSH.

If you're moving from Windows to Linux you'll probably want to keep all your SSH accounts you've been using in PuTTY.

On a Linux OpenSSH will be the simplest tool help you keep track of all your SSH accounts.

To speed up the migration convert your list of accounts from PuTTY registery key to a OpenSSH configuration file format.

Windows: Export Registry Keys

The below command should export all your sessions to the a file putty.reg on your desktop.

regedit /e "%userprofile%\desktop\putty.reg" HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions

Linux: Convert and Import to OpenSSH

1. Copy your exported PuTTY sessions to your Linux (with installed php).
2. Place the putty.reg file in the same directory as the convert.php script.
3. Run the convert.php in Terminal to generate a OpenSSH configuration file.

php convert.php putty.reg ssh_config

4. Copy the ssh_config file to ~/.ssh/config.

cp ./ssh_config ~/.ssh/config

Processed fields

• HostName
• PortNumber
• UserName

Links

https://www.openssh.com/

https://www.opennet.ru/cgi-bin/opennet/man.cgi?topic=ssh&category=1

http://www.chiark.greenend.org.uk/~sgtatham/putty/