other:putty_conf
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other:putty_conf [2023/03/23 09:40] jypeter [Using ssh keys with PuTTY/Pageant] Improved, example key file names |
other:putty_conf [2023/03/23 16:37] jypeter Clarified the different types of files |
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| * Make sure that the selected //Type of key to generate// (at the bottom of the ''PuTTYgen'' window) is ''EdDSA'' (short for //Edwards-curve DSA//), with the default ''255'' bits.\\ This will generate **//ed25519// keys** that are now recommended on the IPSL servers | * Make sure that the selected //Type of key to generate// (at the bottom of the ''PuTTYgen'' window) is ''EdDSA'' (short for //Edwards-curve DSA//), with the default ''255'' bits.\\ This will generate **//ed25519// keys** that are now recommended on the IPSL servers | ||
| * {{:other:putty_23b.png?direct&500|}} | * {{:other:putty_23b.png?direct&500|}} | ||
| - | * You could also use ''RSA'' and ''4096'' bits, but ''ed25519'' keys are now recommended on the IPSL servers | + | * You could also use ''RSA'' and ''4096'' bits, but ''ed25519'' keys are now recommended to access the [[https://documentations.ipsl.fr/spirit/spirit_clusters/head_nodes.html|IPSL servers]] |
| * Click on the ''Generate'' button and move your mouse to generate some random information | * Click on the ''Generate'' button and move your mouse to generate some random information | ||
| Line 173: | Line 173: | ||
| * Read [[other:ssh#some_common_sense_advice|Do not forget your passphrase!]] if you need some advice about passphrases | * Read [[other:ssh#some_common_sense_advice|Do not forget your passphrase!]] if you need some advice about passphrases | ||
| - | * Click on the ''Save private key'' button, and create an ''id_ed25519**.ppk**'' file | + | * Click on the ''Save private key'' button, and create the ''id_ed25519**.ppk**'' **Pageant //private// key file** |
| + | * We recommend that you save this file in the the Windows [[other:ssh#configuration_files|ssh configuration directory]]\\ => ''C:\Users\your_windows_login\.ssh\id_ed25519.ppk'' | ||
| * Note: files with a ''.ppk'' extension can only be used by ''PuTTY''/''pageant''. That's why you also need to //export// the private key, as shown below | * Note: files with a ''.ppk'' extension can only be used by ''PuTTY''/''pageant''. That's why you also need to //export// the private key, as shown below | ||
| - | * **Important!** Click ''Conversions''=>''Export OpenSSH Key'' and create an ''id_ed25519'' file (a text file with **no** ''.ppk'' extension) | + | * **Important!** Click ''Conversions''=>''Export OpenSSH Key'' and create the ''id_ed25519'' **standard //private// key file** (a text file with **no** ''.ppk'' extension) |
| + | * => ''C:\Users\your_windows_login\.ssh\id_ed25519'' | ||
| * You will not need this file when you use ''PuTTY'', but you may need to use this private key in a standard text format later, on Linux computers/servers | * You will not need this file when you use ''PuTTY'', but you may need to use this private key in a standard text format later, on Linux computers/servers | ||
| - | * Open a text editor and create an ''id_ed25519**.pub**'' file | + | * Open a text editor and create the ''id_ed25519**.pub**'' **standard //public// key file** |
| - | * Save the content of the ''Public key for pasting into OpenSSH authorized_keys file'' field in the file\\ Something looking like\\ <code>ssh-ed25519 AAAAC3NzaC1lZDI[... lots of characters ...]vwjLNmY eddsa-key-20230310</code> | + | * => ''C:\Users\your_windows_login\.ssh\id_ed25519.pub'' |
| + | * Save the content of the ''Public key for pasting into OpenSSH authorized_keys file'' field in the ''id_ed25519**.pub**'' file\\ Something looking like\\ <code>ssh-ed25519 AAAAC3NzaC1lZDI[... lots of characters ...]vwjLNmY eddsa-key-20230310</code> | ||
| + | * This is the **//public// key** that you will need to [[other:ssh#installing_ssh_keys|install]] on all the remote Linux server that you want to connect to using the ssh agent, instead of typing your password | ||
| - | * Click on the ''Save public key'' button, and create a ''id_ed25519**.pub**'' file | + | * **WARNING!** Do **not** use the ''Save public key'' button to create the public key file, because the resulting file will not be standard enough to be used directly on Linux computers |
| - | * You will need to [[other:ssh#installing_ssh_keys|install the public key]] on all the remote Linux server that you want to connect to using the ssh agent, instead of typing your password | + | |
| ==== Using the private key in Pageant ==== | ==== Using the private key in Pageant ==== | ||
other/putty_conf.txt · Last modified: 2024/02/15 13:27 by jypeter
