Use PPK file in Mac Terminal to connect to remote connection over SSH

Question

I have been using Putty on Windows XP and used the  ppk file to connect to my Linux servers  several servers    On the servers I have the following folder and file    ssh authorized keys  I now want to use a Mac to connect via the terminal  I have set up the remote connections to the servers manually and want to know how I can setup using the ppk file or the private public key within it   Please note   I already am using private public key login from Windows so I do not need to create a new key using keygen  I just want to know how to set up now that I have the keys already   In other words  I already have the authorized key lists on the server  and the public and private key

User · Answer

There is a way to do this without installing putty on your Mac. You can easily convert your existing PPK file to a PEM file using PuTTYgen on Windows.

Launch PuTTYgen and then load the existing private key file using the Load button. From the "Conversions" menu select "Export OpenSSH key" and save the private key file with the .pem file extension.

Copy the PEM file to your Mac and set it to be read-only by your user:

chmod 400 <private-key-filename>.pem

Then you should be able to use ssh to connect to your remote server

ssh -i <private-key-filename>.pem username@hostname

User · Answer

Convert PPK to OpenSSh  OS X  Install Homebrew  then run      brew install putty   Place your keys in some directory  e g  your home folder  Now convert the PPK keys to SSH keypairs cache search  To generate the private key      cd        puttygen id dsa ppk -O private-openssh -o id dsa   and to generate the public key      puttygen id dsa ppk -O public-openssh -o id dsa pub   Move these keys to    ssh and make sure the permissions are set to private for your private key   mkdir -p    ssh mv -i   id dsa     ssh chmod 600    ssh id dsa chmod 666    ssh id dsa pub   connect with ssh server   ssh -i    ssh id dsa username servername   Port Forwarding to connect mysql remote server  ssh -i    ssh id dsa -L 9001 127 0 0 1 3306 username serverName

User · Answer

You can ssh directly from the Terminal on Mac  but you need to use a  PEM key rather than the putty  PPK key  You can use PuttyGen on Windows to convert from  PEM to  PPK  I m not sure about the other way around though   You can also convert the key using putty for Mac via port or brew   sudo port install putty   or  brew install putty   This will also install puttygen  To get puttygen to output a  PEM file   puttygen privatekey ppk -O private-openssh -o privatekey pem   Once you have the key  open a terminal window and   ssh -i privatekey pem user my server com   The private key must have tight security settings otherwise SSH complains  Make sure only the user can read the key   chmod go-rw privatekey pem

[macos] Use PPK file in Mac Terminal to connect to remote connection over SSH

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