SSH, short for Secure Shell, is a protocol for secure network communications. It is widely used for executing commands on remote servers, and for f...
For further actions, you may consider blocking this person and/or reporting abuse
You can also copy your public key to a remote server's
authorized_keys
file usingssh-copy-id
which is available on most systems. I think it didn't used to be installed on MacOS but am pretty sure it's there in the newer versions.Suuuuuuuper useful if your in an org that demands keys be rotated frequently (but don't have PKI-enabled SSHDs on the target systems).
Thanks for the note. I didn't know about it.
Just for others to see, the syntax of this tool is as follows:
It's available in MacOS too :)
In addition to ssh-copy-id that is already mentioned is ssh-import-id which copies a key from launchpad.net or github.com.
It is available in ubuntu and maybe elsewhere by default.
It is roughly equivalent to
curl -s https://api.github.com/users/$USER/keys | jq -r .[].key >> ~/.ssh/authorized_keys
assuming your username is the same on github as it is on the linux system.Does that mean that Github ir Launchpad gets access to the files on your computer?
No. The ssh-import-id runs on your computer and calls remote API and writes the file on your computer.
Here is what would be necessary to enter to the Terminal:
With respect to rsync:
rsync
in concert with theparallel
commandSpeaking of performance…
If someone ever complains about network throughput speeds, never use SSH-enabled techniques for bandwidth testing. The encryption-overhead of SSH means that such tests will never really show you your network's actual capabilities (unless your network is so degraded that SSH's encryption is no longer a bottleneck).
These are interesting tips. Thanks.
You might want to mention, that using user@password authentication on a public facing ssh server is not recommended.
Brute force attacks are running 24/7
Does it work with GitHub, Bitbucket, and other online services? Or is it only for internal server communication?
Thanks. That's very useful.