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SSH notes
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| Establish a local SSH tunnel to a remote server | |
| $ ssh -f <user>@<ip> -L <local_port>:<ip>:<remote_port> -N | |
| Generate a SSH public/private key pair (4096 bits, with no comment at the end of the public key) | |
| $ ssh-keygen -b 4096 -C "" | |
| Extract the public key from a private key | |
| $ openssl rsa -in private_key.pem -pubout # PEM formatted | |
| $ ssh-keygen -y -f private_key.pem # SSH formatted |
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