ssh-keygen: Difference between revisions
Created page with "category:Linux commands ==About== ssh-keygen is a Linux command for generating ssh keys. Just typing the command without any arguments will generate a new key in..." |
No edit summary |
||
| (3 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
[[category:Linux commands]] | [[category:Linux commands]] | ||
==About== | ==About== | ||
[[ssh-keygen]] is a Linux command for generating [[ssh]] keys. | [[ssh-keygen]] is a [[Linux command]] for generating [[ssh]] keys. | ||
Just typing the command without any arguments will generate a new key in <code>~/.ssh/ | Just typing the command without any arguments will generate a new key-pair in <code>~/.ssh/</code> (a prompt offers to let you change this), with an optional passphrase (also queried by prompt). The files will be called <code>id_X</code> and <code>id_X.pub</code>, where X is replaced by whatever key type you choose ("rsa" was the default when last tested). | ||
It can also be used to remove conflicting entries from the <code>.known-hosts</code> file. | It can also be used to remove conflicting entries from the <code>.known-hosts</code> file. | ||
==Pages== | |||
* {{l/manpage}} for this system | |||
===Notes=== | |||
Note that there is bad syntax in the command format on the manpage. The manpage says: | |||
ssh-keygen [-q] [-b bits] [-t dsa | ecdsa | ed25519 | rsa] | |||
The clause which begins with <code>[-t</code> implies that you could type "-t dsa" or "ecdsa" or "ed25519" or "rsa", but the actual choices are "-t dsa" or "-t ecdsa" or "-t ed25519" or "-t rsa". The actual syntax should be: | |||
ssh-keygen [-q] [-b bits] [-t [dsa | ecdsa | ed25519 | rsa]] | |||
==How To== | |||
To create a new ed25519 key: | |||
ssh-keygen -t ed25519 | |||
==Links== | |||
* {{wikipedia}} | |||
Latest revision as of 19:45, 18 April 2023
About
ssh-keygen is a Linux command for generating ssh keys.
Just typing the command without any arguments will generate a new key-pair in ~/.ssh/ (a prompt offers to let you change this), with an optional passphrase (also queried by prompt). The files will be called id_X and id_X.pub, where X is replaced by whatever key type you choose ("rsa" was the default when last tested).
It can also be used to remove conflicting entries from the .known-hosts file.
Pages
- manpage for this system
Notes
Note that there is bad syntax in the command format on the manpage. The manpage says:
ssh-keygen [-q] [-b bits] [-t dsa | ecdsa | ed25519 | rsa]
The clause which begins with [-t implies that you could type "-t dsa" or "ecdsa" or "ed25519" or "rsa", but the actual choices are "-t dsa" or "-t ecdsa" or "-t ed25519" or "-t rsa". The actual syntax should be:
ssh-keygen [-q] [-b bits] [-t [dsa | ecdsa | ed25519 | rsa]]
How To
To create a new ed25519 key:
ssh-keygen -t ed25519
