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Easy SSH Login

Here is a simple way to setup key (password-less) login on Unix-like systems.

Once you’ve configured SSH locally, add your public key to remote hosts using the following command:

**NB** in the next line, be very careful to use cat >> (append) and not cat > (overwrite), or you will trash your remote authorized_keys2 file, leaving your remote inaccessible to everyone but you. Not cool.

cat ~/.ssh/id_rsa.pub | ssh remote_machine 'cat >> .ssh/authorized_keys2'

Replace .ssh/id_rsa.pub with your public key.

Also make sure remote folder ~/.ssh has mode 0700 and ~/.ssh/authorized_keys2 has 0600.


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