Category Archives: SSH

Allow ssh only as a single user or from specific IPs

The following are the relevant config bits in /etc/ssh/sshd_config # disable password authentication globally PasswordAuthentication no Either by username: # now re-enable it down at the very end of the sshd_config file like thus Match User rack PasswordAuthentication yes or … Continue reading

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Connecting to an external MySQL server through an SSH tunnel

Scenario: You’re at home, and you want to connect to a mysql server on the other side of a firewall. There is a machine with ssh open on it that you can use as a gateway. On your home machine: … Continue reading

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SSH stuff

Use the -i option to specify a new key ssh -i newkey root@108.166.84.188 How to strip a passphrase from an openssl key cp filename.key filename.key.encrypted openssl rsa -in filename.key -out filename.key.nopass cp filename.key.nopass filename.key How to add or change a … Continue reading

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