SSH Key Authentication: Difference between revisions
Puri@uab.edu (talk | contribs) |
(→Putty) |
||
(17 intermediate revisions by 3 users not shown) | |||
Line 1: | Line 1: | ||
These instructions assist existing users of Cheaha in getting access to new Cheaha. | These instructions assist existing users of Cheaha in getting access to new Cheaha. | ||
===Mac OS X=== | ===Mac OS X=== | ||
Line 10: | Line 11: | ||
* You can put a passphrase for your SSH key (''' Not mandatory but highly recommended''') | * You can put a passphrase for your SSH key (''' Not mandatory but highly recommended''') | ||
* A '''id_rsa.pub''' file would have been created. | * A '''id_rsa.pub''' file would have been created. | ||
* Open the file by running '''less | * Open the file by running '''less .ssh/id_rsa.pub''' and copy the content. | ||
* Press '''q''' to exit out of the file. | * Press '''q''' to exit out of the file. | ||
* Now SSH to your '''cheaha. | * Now SSH to your '''cheaha.rc.uab.edu''' account , and paste the content in '''~/.ssh/authorized_keys''' using your favorite editor. | ||
* Now log out from cheaha. | * Now '''log out''' from cheaha.rc.uab.edu and login again. You shouldn't see a prompt for password and be directly logged in. | ||
'''Note:''' You need to perform these steps just for the first time access, you should be able to directly run '''ssh blazerid@cheaha.rc.uab.edu''' from next time. | |||
===Linux=== | ===Linux=== | ||
Line 29: | Line 27: | ||
* You can put a passphrase for your SSH key (''' Not mandatory but highly recommended''') | * You can put a passphrase for your SSH key (''' Not mandatory but highly recommended''') | ||
* A '''id_rsa.pub''' file would have been created. | * A '''id_rsa.pub''' file would have been created. | ||
* Open the file by running '''less | * Open the file by running '''less .ssh/id_rsa.pub''' and copy the content. | ||
* Press '''q''' to exit out of the file. | * Press '''q''' to exit out of the file. | ||
* Now SSH to your '''cheaha. | * Now SSH to your '''cheaha.rc.uab.edu''' account , and paste the content in '''~/.ssh/authorized_keys''' using your favorite editor. | ||
* Now | * Now '''log out''' from cheaha.rc.uab.edu and login again. You shouldn't see a prompt for password and be directly logged in. | ||
'''Note:''' You need to perform these steps just for the first time access, you should be able to directly run '''ssh blazerid@cheaha.rc.uab.edu''' from next time. | |||
===Windows=== | ===Windows=== | ||
Line 44: | Line 38: | ||
====Putty==== | ====Putty==== | ||
You | You will require a tool called '''puttygen''', to generate SSH keys for the pairing purpose. You can download it [http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html here]. Once you have downloaded and installed '''putty''' and '''puttygen''', follow these instructions: | ||
* Launch PuTTY Key Generator. | * Launch PuTTY Key Generator. | ||
* Click the Generate button and press a series of random keystrokes to aid in generating the key. | |||
* | |||
* Enter a unique key passphrase in the Key passphrase and Confirm passphrase fields. | * Enter a unique key passphrase in the Key passphrase and Confirm passphrase fields. | ||
* Save the public and private keys by clicking the Save public key and Save private key buttons. | * Save the public and private keys by clicking the Save public key and Save private key buttons. | ||
* Right click the filed '''Public key for pasting into OpenSSH authorized_keys file''', choose '''Select All''', right click again and select Copy | |||
* | |||
* Now open application '''Putty'''. | * Now open application '''Putty'''. | ||
* Set up your session for '''cheaha.rc.uab.edu''' in PuTTy. (If you don't know how, follow these [https://docs.uabgrid.uab.edu/wiki/Cheaha_GettingStarted#PuTTY instructions]). | |||
* Set up your session for ''' | |||
* Login to your Cheaha account. | * Login to your Cheaha account. | ||
* Paste the content of the '''Public key''' that you previously copied to the clip board in '''Puttygen''' into the '''~/.ssh/authorized_keys''' file using your favorite editor. | |||
* Paste the content of the '''Public key''' that you | |||
* Now select your saved session for '''cheaha.rc.uab.edu'''. | * Now select your saved session for '''cheaha.rc.uab.edu'''. | ||
* Click '''Connection > SSH > Auth''' in the left-hand navigation pane and configure the private key to use by clicking Browse under Private key file for authentication. | * Click '''Connection > SSH > Auth''' in the left-hand navigation pane and configure the private key to use by clicking Browse under Private key file for authentication. | ||
* Navigate to the location where you saved your private key earlier, select the file, and click Open. | * Navigate to the location where you saved your private key earlier, select the file, and click Open. | ||
* The private key path is now displayed in the Private key file for authentication field. | * The private key path is now displayed in the Private key file for authentication field. | ||
* Click Session in the left-hand navigation pane and click '''Save''' in the Load, save or delete a stored session section. | * Click Session in the left-hand navigation pane and click '''Save''' in the Load, save or delete a stored session section. | ||
* Click Open to begin your session with the server. You shouldn't see a prompt for password and be directly logged in. | |||
'''Note:''' You need to perform these steps just for the first time access, you should be able to directly run your '''cheaha.rc.uab.edu''' profile from next time. | |||
====SSH Secure Shell Client==== | ====SSH Secure Shell Client==== | ||
Line 116: | Line 74: | ||
* At the '''Settings''' screen, click '''OK'''. | * At the '''Settings''' screen, click '''OK'''. | ||
* Copy the content of .pub file generated. | * Copy the content of .pub file generated. | ||
* Now SSH to your '''cheaha. | * Now SSH to your '''cheaha.rc.uab.edu''' account, following the instructions [https://docs.uabgrid.uab.edu/wiki/Cheaha_GettingStarted#SSH_Secure_Shell_Client here] , and paste the content in '''~/.ssh/authorized_keys''' using your favorite editor. | ||
* Now | * Now '''exit/logout''' from your account on '''cheaha.uabgrid.uab.edu''' and login again. You shouldn't see a prompt for password and be directly logged in. | ||
'''Note:''' You need to perform these steps just for the first time access, you should be able to directly run your '''cheaha.rc.uab.edu''' profile from next time. |
Revision as of 18:02, 28 August 2018
These instructions assist existing users of Cheaha in getting access to new Cheaha.
Mac OS X
- On your Mac open Terminal application.
- Run the following command on your terminal:
ssh-keygen -t rsa
- You can put a passphrase for your SSH key ( Not mandatory but highly recommended)
- A id_rsa.pub file would have been created.
- Open the file by running less .ssh/id_rsa.pub and copy the content.
- Press q to exit out of the file.
- Now SSH to your cheaha.rc.uab.edu account , and paste the content in ~/.ssh/authorized_keys using your favorite editor.
- Now log out from cheaha.rc.uab.edu and login again. You shouldn't see a prompt for password and be directly logged in.
Note: You need to perform these steps just for the first time access, you should be able to directly run ssh blazerid@cheaha.rc.uab.edu from next time.
Linux
- On your linux machine open Terminal application.
- Run the following command on your terminal:
ssh-keygen -t rsa
- You can put a passphrase for your SSH key ( Not mandatory but highly recommended)
- A id_rsa.pub file would have been created.
- Open the file by running less .ssh/id_rsa.pub and copy the content.
- Press q to exit out of the file.
- Now SSH to your cheaha.rc.uab.edu account , and paste the content in ~/.ssh/authorized_keys using your favorite editor.
- Now log out from cheaha.rc.uab.edu and login again. You shouldn't see a prompt for password and be directly logged in.
Note: You need to perform these steps just for the first time access, you should be able to directly run ssh blazerid@cheaha.rc.uab.edu from next time.
Windows
Putty
You will require a tool called puttygen, to generate SSH keys for the pairing purpose. You can download it here. Once you have downloaded and installed putty and puttygen, follow these instructions:
- Launch PuTTY Key Generator.
- Click the Generate button and press a series of random keystrokes to aid in generating the key.
- Enter a unique key passphrase in the Key passphrase and Confirm passphrase fields.
- Save the public and private keys by clicking the Save public key and Save private key buttons.
- Right click the filed Public key for pasting into OpenSSH authorized_keys file, choose Select All, right click again and select Copy
- Now open application Putty.
- Set up your session for cheaha.rc.uab.edu in PuTTy. (If you don't know how, follow these instructions).
- Login to your Cheaha account.
- Paste the content of the Public key that you previously copied to the clip board in Puttygen into the ~/.ssh/authorized_keys file using your favorite editor.
- Now select your saved session for cheaha.rc.uab.edu.
- Click Connection > SSH > Auth in the left-hand navigation pane and configure the private key to use by clicking Browse under Private key file for authentication.
- Navigate to the location where you saved your private key earlier, select the file, and click Open.
- The private key path is now displayed in the Private key file for authentication field.
- Click Session in the left-hand navigation pane and click Save in the Load, save or delete a stored session section.
- Click Open to begin your session with the server. You shouldn't see a prompt for password and be directly logged in.
Note: You need to perform these steps just for the first time access, you should be able to directly run your cheaha.rc.uab.edu profile from next time.
SSH Secure Shell Client
- In SSH Secure Shell, from the Edit menu, select Settings...
- In the window that opens, select Global Settings, then User Authentication, and then Keys.
- Under "Key pair management", click Generate New.... In the window that appears, click Next.
- In the Key Generation window that appears:
- From the drop-down list next to Key Type:, select from the following:
- If you want to take less time to initially generate the key, select DSA.
- If you want to take less time during each connection for the server to verify your key, select RSA.
- From the the drop-down list next to Key Length:, select at least 1024. You may choose a greater key length, but the time it takes to generate the key, as well as the time it takes to authenticate using it, will go up.
- From the drop-down list next to Key Type:, select from the following:
- Click Next. The key generation process will start. When it's complete, click Next again.
- In the File Name: field, enter a name for the file where SSH Secure Shell will store your private key. Your public key will be stored in a file with the same name, plus a .pub extension.
- Important: You can put a passphrase for your SSH key ( Not mandatory but highly recommended)
- To complete the key generation process, click Next, and then Finish.
- At the Settings screen, click OK.
- Copy the content of .pub file generated.
- Now SSH to your cheaha.rc.uab.edu account, following the instructions here , and paste the content in ~/.ssh/authorized_keys using your favorite editor.
- Now exit/logout from your account on cheaha.uabgrid.uab.edu and login again. You shouldn't see a prompt for password and be directly logged in.
Note: You need to perform these steps just for the first time access, you should be able to directly run your cheaha.rc.uab.edu profile from next time.