SSH - Revision history

Isiadmin: /* Connecting with Key-Based Authentication */

2021-08-26T21:06:34Z

Connecting with Key-Based Authentication

← Older revision		Revision as of 21:06, 26 August 2021
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	== Connecting with Key-Based Authentication ==		== Connecting with Key-Based Authentication ==
	A very common authentication method built into SSH is key-based authentication. Instead of using a password to authenticate, a server may pre-authenticate a client by installing a public key. This system is far more secure than basic password authentication and is used on all ISI systems.		A very common authentication method built into SSH is key-based authentication. Instead of using a password to authenticate, a server may pre-authenticate a client by installing a public key. This system is far more secure than basic password authentication and is used on all ISI systems.

			If you're interested in learning more about public key authentication, [https://en.wikipedia.org/wiki/Public-key_cryptography Wikipedia has a great article].

	=== Generating a Key Pair ===		=== Generating a Key Pair ===

2020-05-28T16:03:00Z

Preventing Disconnects on JHU Servers

← Older revision		Revision as of 16:03, 28 May 2020
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	ServerAliveInterval 30		ServerAliveInterval 30
	ServerAliveCountMax 5		ServerAliveCountMax 5

			To keep sessions alive on PuTTY in Windows, in the "Connection" section of the settings for the session, set the "Seconds between keepalives" setting to 30.

	==== Giving a Connection a Nickname ====		==== Giving a Connection a Nickname ====

2020-05-28T10:16:48Z

Connecting with Key-Based Authentication: Corrected a key type error in the text.

← Older revision		Revision as of 10:16, 28 May 2020
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	+----[SHA256]-----+		+----[SHA256]-----+

	Once the command finishes, it will generate both a private key and public key. The public key will have the same name as your ~~public~~ key with a <code>.pub</code> filename extension.		Once the command finishes, it will generate both a private key and public key. The public key will have the same name as your private key with a <code>.pub</code> filename extension.

	Your private key is to be kept securely on your local system. '''You should never transmit your private key over any network that may be monitored.'''		Your private key is to be kept securely on your local system. '''You should never transmit your private key over any network that may be monitored.'''

2020-04-08T14:23:58Z

Configuration

← Older revision		Revision as of 14:23, 8 April 2020
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	# Default settings for all hosts we connect to:		# Default settings for all hosts we connect to:
	Host *		Host *
	~~ParameterName~~ Value		Parameter1 Value

	# Default settings for any systems we connect to at jhu.edu:		# Default settings for any systems we connect to at jhu.edu:
	Host *.jhu.edu		Host *.jhu.edu
	~~ParameterName~~ Value		Parameter2 Value


			'''Note:''' If multiple patterns match a host, the settings will stack. In this case, any host matching <code>Host .jhu.edu</code> also matches <code>Host </code>, so the settings from both will apply.

	You can find a list of all parameters available in the [https://linux.die.net/man/5/ssh ssh(5) Man Page].		You can find a list of all parameters available in the [https://linux.die.net/man/5/ssh ssh(5) Man Page].

2020-04-08T14:17:53Z

@@ Line 137: / Line 137: @@
 This will create a SOCKS5 proxy on the local port specified to be able to filter traffic through the server.  This is a great way to create a very simple VPN.
 = Additional Resources =
-* [https://linux.die.net/man/1/ssh SSH Man Page]
+* [https://linux.die.net/man/1/ssh ssh(1) Man Page]

2020-03-11T15:35:11Z

← Older revision		Revision as of 15:35, 11 March 2020
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	[[Category:Networking]]		[[Category:Networking]]
	[[Category:SE Fundamentals]]		[[Category:SE Fundamentals]]
			[[Category:Software]]
	~~= About =~~

	From the SSH <code>man</code> page:		From the SSH <code>man</code> page:

2020-01-14T10:45:51Z

Windows

← Older revision		Revision as of 10:45, 14 January 2020
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	== Windows ==		== Windows ==
	Since April of 2018, SSH comes pre-installed in Microsoft Windows 10 and above and can be used via the command line.		Since April of 2018, SSH comes pre-installed in Microsoft Windows 10 and above and can be used via the command line. More information can be found [https://docs.microsoft.com/en-us/windows-server/administration/openssh/openssh_overview here].

	= Using SSH =		= Using SSH =

2019-01-08T09:36:40Z

← Older revision		Revision as of 09:36, 8 January 2019
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	== Windows ==		== Windows ==
	Since April of 2018, SSH comes pre-installed Microsoft Windows 10 and above and can be used via the command line.		Since April of 2018, SSH comes pre-installed in Microsoft Windows 10 and above and can be used via the command line.

	= Using SSH =		= Using SSH =
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	Once the command finishes, it will generate both a private key and public key. The public key will have the same name as your public key with a <code>.pub</code> filename extension.		Once the command finishes, it will generate both a private key and public key. The public key will have the same name as your public key with a <code>.pub</code> filename extension.

	Your private key is to be kept securely on your local system '''You should never transmit your private key over any network that may be monitored.'''		Your private key is to be kept securely on your local system. '''You should never transmit your private key over any network that may be monitored.'''

	Your public key, on the other hand, may be safely transmitted in clear text. This key is used to encrypt data that can only be decrypted with the matching private key. The contents of the file should look similar to this:		Your public key, on the other hand, may be safely transmitted in clear text. This key is used to encrypt data that can only be decrypted with the matching private key. The contents of the file should look similar to this:

2018-12-04T12:47:11Z

Windows

← Older revision		Revision as of 12:47, 4 December 2018
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	== Windows ==		== Windows ==
	Since SSH ~~does not come~~ pre-installed ~~on any~~ Microsoft Windows ~~version, you will need to install it as an "Optional Feature". This~~ can be ~~easily done~~ via the ~~UI:~~		Since April of 2018, SSH comes pre-installed Microsoft Windows 10 and above and can be used via the command line.

	~~# Open Settings~~
	~~# Navigate to Apps -> Apps and Features -> Manage Optional Features -> Add a Feature~~
	~~# Select OpenSSH Client (Beta)~~
	~~# Click Install~~

	= Using SSH =		= Using SSH =

2018-12-04T11:25:00Z

@@ Line 6: / Line 6: @@
 = About =
-From the SSH man page:
+From the SSH <code>man</code> page:
      ssh (SSH client) is a program for logging into a remote machine and for executing commands on a remote machine.  It is intended to provide secure encrypted communications between two untrusted hosts over an insecure network.  X11 connections, arbitrary TCP ports and UNIX-domain sockets can also be forwarded over the secure channel.
 = Required Client Software =
@@ Line 33: / Line 35: @@
 '''Note:''' When typing your password, nothing will appear in the terminal. If you think you mistyped your password, you can press <code>Ctrl+U</code> to clear the input and try again.