SSH Key Authentication - Revision history

Mhanby@uab.edu: /* Linux and Mac */

2020-05-28T15:29:45Z

Linux and Mac

← Older revision		Revision as of 15:29, 28 May 2020
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	=== Linux and Mac ===		=== Linux and Mac ===
	Open the terminal application and run the following command (make sure to use the backtick (`) not single quotes (')). We wrap this inside of an if statement to avoid starting more than one '''ssh-agent''', you only need one!		Open the terminal application and run the following command (make sure to use the backtick (`) not single quotes (')). We wrap this inside of an ''if statement'' to avoid starting more than one '''ssh-agent''', you only need one!
	<pre>		<pre>
	if [[ "$(pgrep -U $USER ssh-agent)" == "" ]]; then eval `ssh-agent`; fi		if [[ "$(pgrep -U $USER ssh-agent)" == "" ]]; then eval `ssh-agent`; fi

Mhanby@uab.edu: /* SSH Passphrases */

2020-05-28T15:29:14Z

SSH Passphrases

← Older revision		Revision as of 15:29, 28 May 2020
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	=== Linux and Mac ===		=== Linux and Mac ===
	Open the terminal application and run the following command (make sure to use the backtick (`) not single quotes ('))		Open the terminal application and run the following command (make sure to use the backtick (`) not single quotes (')). We wrap this inside of an if statement to avoid starting more than one '''ssh-agent''', you only need one!
	<pre>		<pre>
	eval `ssh-agent`		if [[ "$(pgrep -U $USER ssh-agent)" == "" ]]; then eval `ssh-agent`; fi
	</pre>		</pre>

Line 91:		Line 91:
	<pre>		<pre>
	ssh-add		ssh-add
			</pre>

			You can list the SSH public keys that are currently represented by the agent by running this command.
			<pre>
			ssh-add -L
	</pre>		</pre>

	Enter your private key passphrase. Now your passphrase is stored and you'll be able to SSH to Cheaha without being prompted for the passphrase.		Enter your private key passphrase. Now your passphrase is stored and you'll be able to SSH to Cheaha without being prompted for the passphrase.
			<pre>
			ssh cheaha.rc.uab.edu
			</pre>

Mhanby@uab.edu at 18:22, 26 May 2020

2020-05-26T18:22:41Z

@@ Line 1: / Line 1: @@
-These instructions assist existing users of Cheaha in getting access to new Cheaha.
+== SSH Key Generation ==
+These instructions assist new Cheaha users to access the cluster using an SSH client.
 ===Mac OS X===
@@ Line 78: / Line 78: @@
 '''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.

Mhanby@uab.edu: /* Putty */

2018-08-28T18:02:50Z

Putty

← Older revision		Revision as of 18:02, 28 August 2018
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	====Putty====		====Putty====

	You ~~would~~ require a tool called '''puttygen''', to generate SSH keys for the pairing purpose. You can ~~downlaod~~ it [http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html here]. Once you have downloaded and installed '''putty''' and '''puttygen''', follow these instructions:		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.
	* ~~Launch the program, click~~ the Generate button~~. The program generates~~ the ~~keys for you~~.

	* 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
	* ~~Enter a unique key passphrase in~~ the ~~Key passphrase and Confirm passphrase fields. You will be prompted for that passphrase whenever you log in to a server with this key. ('''Not Mandatory, but highly recommended''')~~

	* Copy the content from the public file that you just generated by right clicking in the text field labeled '''Public key for pasting into OpenSSH authorized_keys file''' ~~and~~ 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 '''cheaha.rc.uab.edu''' in PuTTy. (If you don't know how, follow these [https://docs.uabgrid.uab.edu/wiki/Cheaha_GettingStarted#PuTTY instructions]).

	* 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 ~~generated using~~ '''Puttygen''' in '''~/.ssh/authorized_keys''' using your favorite editor.

	* 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.		* Click Open to begin your session with the server. You shouldn't see a prompt for password and be directly logged in.

Mhanby@uab.edu: /* Putty */

2017-03-03T14:55:59Z

Putty

← Older revision		Revision as of 14:55, 3 March 2017
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	* Enter a unique key passphrase in the Key passphrase and Confirm passphrase fields. You will be prompted for that passphrase whenever you log in to a server with this key. ('''Not Mandatory, but highly recommended''')		* Enter a unique key passphrase in the Key passphrase and Confirm passphrase fields. You will be prompted for that passphrase whenever you log in to a server with this key. ('''Not Mandatory, but highly recommended''')

	* Copy the content from the public file that you just generated.		* Copy the content from the public file that you just generated by right clicking in the text field labeled '''Public key for pasting into OpenSSH authorized_keys file''' and choose '''Select All''', right click again and select Copy

	* Now open application '''Putty'''.		* Now open application '''Putty'''.

Ravi89@uab.edu: /* SSH Secure Shell Client */

2016-10-17T16:15:19Z

SSH Secure Shell Client

← Older revision		Revision as of 16:15, 17 October 2016
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	* Copy the content of .pub file generated.		* Copy the content of .pub file generated.
	* 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 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 '''exit/logout''' from your account on '''cheaha.uabgrid.uab.edu'''		* 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.		'''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.

Ravi89@uab.edu: /* SSH Secure Shell Client */

2016-10-17T16:14:43Z

SSH Secure Shell Client

← Older revision		Revision as of 16:14, 17 October 2016
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	* 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.~~uabgrid~~.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 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 '''exit/logout''' from your account on '''cheaha.uabgrid.uab.edu'''		* Now '''exit/logout''' from your account on '''cheaha.uabgrid.uab.edu'''
	* Now ssh into '''blazerid'''@cheaha.rc.uab.edu , following the instructions [https://docs.uabgrid.uab.edu/wiki/Cheaha_GettingStarted#SSH_Secure_Shell_Client here]. Remember to change '''Host Name''' to '''cheaha.rc.uab.edu'''
	* You should have been able to login to new Cheaha.

	'''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.		'''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.

Ravi89@uab.edu: /* Putty */

2016-10-17T16:13:52Z

Putty

← Older revision		Revision as of 16:13, 17 October 2016
Line 70:		Line 70:
	* 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.		* 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.		'''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.

Ravi89@uab.edu: /* Putty */

2016-10-17T16:12:35Z

Putty

@@ Line 54: / Line 54: @@
 * Now open application '''Putty'''.
-* Set up your session for '''Cheaha''' 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 '''cheaha.rc.uab.edu''' in PuTTy. (If you don't know how, follow these [https://docs.uabgrid.uab.edu/wiki/Cheaha_GettingStarted#PuTTY instructions]).
 * Login to your Cheaha account.
 * Paste the content of the '''Public key''' that you generated using '''Puttygen''' in '''~/.ssh/authorized_keys''' using your favorite editor.
 * Now select your saved session for '''cheaha.rc.uab.edu'''.
@@ Line 95: / Line 73: @@
 '''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====

Ravi89@uab.edu: /* Linux */

2016-10-17T16:10:18Z

Linux

← Older revision		Revision as of 16:10, 17 October 2016
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	* Open the file by running '''less .ssh/id_rsa.pub''' and copy the content.		* 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.~~uabgrid~~.uab.edu''' account , and paste the content in '''~/.ssh/authorized_keys''' using your favorite editor.		* 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.~~uabgrid~~.uab.edu		* Now '''log out''' from cheaha.rc.uab.edu and login again. You shouldn't see a prompt for password and be directly logged in.
	* Run

	~~ssh '''blazerid'''@cheaha.rc~~.~~uab.edu~~

	* You ~~should have been able to login to new Cheaha~~.

	'''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.		'''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===