SSH - Revision history

Rootadminacc at 16:17, 8 January 2025

2025-01-08T16:17:48Z

2025-01-08T16:17:31Z

← Older revision		Revision as of 17:17, 8 January 2025
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	== [http://serverkb.co.uk/wiki/General_Linux#File_Permissions Changing File Permissions] ==		== [http://serverkb.co.uk/wiki/General_Linux#File_Permissions Changing File Permissions] ==

			== Coloured terminal ==

			For SSH, add this to ~/.bash_profile:

			<pre>if [ -f ~/.bashrc ]; then
			. ~/.bashrc
			fi</pre>

	== Logging into SSH ==		== Logging into SSH ==

2013-03-12T13:51:25Z

Kick user out of SSH

← Older revision		Revision as of 14:51, 12 March 2013
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	<pre>kill processID		<pre>kill processID
	#e.g. kill 12716</pre>		#e.g. kill 12716</pre>

			By default, kill use SIGTERM 15 so does a nice exit, so this will write their commands to the .bash_history file.

	=== View file ===		=== View file ===

2013-03-11T13:20:25Z

Creating an account

← Older revision		Revision as of 14:20, 11 March 2013
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	== Creating an account ==		== Creating an account ==

	useradd -g users -d /home/path/ -s /bin/bash <username~~><br~~>		<pre>useradd -g users -d /home/path/ -s /bin/bash <username>
	chown <username>:users /home/path/ -R		chown <username>:users /home/path/ -R</pre>

	If this does not work on Debian, do:		If this does not work on Debian, do:

	useradd -g root -s /bin/bash username -m		<pre>useradd -g root -s /bin/bash username -m
	usermod -a -G root username		usermod -a -G root username
	passwd username		passwd username</pre>

	== [http://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html Good OpenSSH practices] ==		== [http://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html Good OpenSSH practices] ==

2013-03-07T14:23:22Z

Creating an account

← Older revision		Revision as of 15:23, 7 March 2013
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	useradd -g users -d /home/path/ -s /bin/bash <username><br>		useradd -g users -d /home/path/ -s /bin/bash <username><br>
	chown <username>:users /home/path/ -R		chown <username>:users /home/path/ -R

			If this does not work on Debian, do:

			useradd -g root -s /bin/bash username -m
			usermod -a -G root username
			passwd username

	== [http://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html Good OpenSSH practices] ==		== [http://www.cyberciti.biz/tips/linux-unix-bsd-openssh-server-best-practices.html Good OpenSSH practices] ==

2013-02-27T11:00:33Z

SSH/OpenSSH Keys

← Older revision		Revision as of 12:00, 27 February 2013
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	GSSAPIAuthentication=no<br>		GSSAPIAuthentication=no<br>
	UseDNS=no		UseDNS=no

			== sshd rootkit on Unix systems ==

			Feb 22, 2013 - http://kb.parallels.com/en/115589

			'''Important note'''<br>
			This issue is not related to Parallels products but all sshd-enabled systems are potentially vulnerable. Security checks are strongly advised.

	== SSH/OpenSSH Keys ==		== SSH/OpenSSH Keys ==

2013-02-26T10:55:01Z

On a Windows PC

← Older revision		Revision as of 11:55, 26 February 2013
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	=== On a Windows PC ===		=== On a Windows PC ===

	Please go to ~~this link~~ to download [http://tartarus.org/~simon/putty-snapshots/x86/putty-installer.exe ~~PuTTY~~]. Once installed and ran, please put your server IP address in the "Host (or IP Address)" field and the Port as 22.		Please go to one of these links to download PuTTY: [http://the.earth.li/~sgtatham/putty/latest/x86/putty-0.62-installer.exe Link 1], [http://tartarus.org/~simon/putty-snapshots/x86/putty-installer.exe Link 2]. Once installed and ran, please put your server IP address in the "Host (or IP Address)" field and the Port as 22.

	Press open and you will be prompted for a username, so use root as the username. Enter the root/Virtuozzo password that was provided on the account by default in your service providers welcome email. You will not be able to see a password being typed, but you can still backspace/delete.		Press open and you will be prompted for a username, so use root as the username. Enter the root/Virtuozzo password that was provided on the account by default in your service providers welcome email. You will not be able to see a password being typed, but you can still backspace/delete.

2013-02-21T13:18:31Z

On a Linux PC/Mac

← Older revision		Revision as of 14:18, 21 February 2013
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	'''ssh -p22 root@IPaddress''' . Accept the RSA prompt by either typing or clicking Yes. Enter the root/Virtuozzo password that was provided on the account by default in your service providers welcome email.		'''ssh -p22 root@IPaddress''' . Accept the RSA prompt by either typing or clicking Yes. Enter the root/Virtuozzo password that was provided on the account by default in your service providers welcome email.

	'''Please be aware if the SSH port has been changed from the default of 22, you need to change the number in the -p option above.		'''Please be aware if the SSH port has been changed from the default of 22, you need to change the number in the -p option above.'''

	Please also replace IPaddress with the one of your server.~~'''~~ These are in the format of X.X.X.X/0.0.0.0 e.g. 215.178.46.39		'''Please also replace IPaddress with the one of your server. These are in the format of X.X.X.X/0.0.0.0 e.g. 215.178.46.39'''

	=== On a Windows PC ===		=== On a Windows PC ===

2013-02-21T13:16:36Z

On a Linux PC/Mac

← Older revision		Revision as of 14:16, 21 February 2013
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	Open Terminal for Mac in Applications/Utilities or on Linux it is in Applications/Accessories and use the following command:		Open Terminal for Mac in Applications/Utilities or on Linux it is in Applications/Accessories and use the following command:

	ssh -p22 root@IPaddress . Accept the RSA prompt by either typing or clicking Yes. Enter the root/Virtuozzo password that was provided on the account by default in your service providers welcome email.		'''ssh -p22 root@IPaddress''' . Accept the RSA prompt by either typing or clicking Yes. Enter the root/Virtuozzo password that was provided on the account by default in your service providers welcome email.

			'''Please be aware if the SSH port has been changed from the default of 22, you need to change the number in the -p option above.

			Please also replace IPaddress with the one of your server.''' These are in the format of X.X.X.X/0.0.0.0 e.g. 215.178.46.39

	=== On a Windows PC ===		=== On a Windows PC ===

2013-02-15T13:37:26Z

Shell Commands

← Older revision		Revision as of 14:37, 15 February 2013
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	\|rm -rf <foldername>/*; rmdir <foldername>		\|rm -rf <foldername>/*; rmdir <foldername>
	\|This recursively and forcibly removes a folder and anything below it		\|This recursively and forcibly removes a folder and anything below it
	\|~~If you get "Argument list too long" when deleting do mv cur cur.old ; mkdir cur . You can then delete cur.old at your leisure.~~		\|To Be Filled In
	\|-		\|-
	\|touch <filename>		\|touch <filename>
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	* If you want to wget a link that starts with https, do wget http://www.domain.co.uk/page.php --no-check-certificate		* If you want to wget a link that starts with https, do wget http://www.domain.co.uk/page.php --no-check-certificate

			* If you get "Argument list too long" when deleting do mv cur cur.old ; mkdir cur . You can then delete cur.old at your leisure. Alternatively if you can remove it without worrying about loss of data, cd /to/directory , find . -type f \| xargs rm -Rf

	* If you go into the /etc/init.d/ you will see the services that are available to enable/disable.		* If you go into the /etc/init.d/ you will see the services that are available to enable/disable.