Operating Systems 2014F: Tutorial 9 - Revision history

Soma: /* Public key authentication and ssh */

2014-11-28T19:56:10Z

Public key authentication and ssh

← Older revision		Revision as of 19:56, 28 November 2014
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	chmod 700 ~/.ssh (make it private)		chmod 700 ~/.ssh (make it private)
	mv ~/authorized_keys ~/.ssh		mv ~/authorized_keys ~/.ssh
			chmod 600 ~/.ssh/authorized_keys

	Now you can log in to user other by typing in the passphrase you used to lock the key you generated.		Now you can log in to user other by typing in the passphrase you used to lock the key you generated.

Soma: /* Public key authentication and ssh */

2014-11-28T19:22:53Z

Public key authentication and ssh

← Older revision		Revision as of 19:22, 28 November 2014
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	ssh-add		ssh-add

			Note I expect the above to be a bit confusing. Do look around for resources on public key cryptography; however, you may find that playing around with ssh authentication may help you understand things better. In particular, try using "-v" (verbose) with ssh.

	===Things to explore before the end of tutorial===		===Things to explore before the end of tutorial===

Soma at 19:20, 28 November 2014

2014-11-28T19:20:24Z

← Older revision		Revision as of 19:20, 28 November 2014
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	~~'''This tutorial is not yet finalized.'''~~

	In this tutorial you will be learning about [http://www.openssh.org ssh (openssh)] and [http://fuse.sourceforge.net/sshfs.html sshfs], a network filesystem built on [http://fuse.sourceforge.net/ FUSE].		In this tutorial you will be learning about [http://www.openssh.org ssh (openssh)] and [http://fuse.sourceforge.net/sshfs.html sshfs], a network filesystem built on [http://fuse.sourceforge.net/ FUSE].

Soma: /* Things to explore */

2014-11-28T19:20:14Z

Things to explore

← Older revision		Revision as of 19:20, 28 November 2014
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	ssh-add		ssh-add

	===Things to explore===		===Things to explore before the end of tutorial===

	* Look at the hard link counts of files locally and compare those to the link counts over sshfs. How do they compare?		* Look at the hard link counts of files locally and compare those to the link counts over sshfs. How do they compare?
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	* Can you sshfs to the SCS systems (e.g., access.scs.carleton.ca)?		* Can you sshfs to the SCS systems (e.g., access.scs.carleton.ca)?
	* Setup password-less login to the SCS system (and then undo it).		* Setup password-less login to the SCS system (and then undo it).

			You should be able to do all of the above before you leave tutorial.

Soma at 19:19, 28 November 2014

2014-11-28T19:19:44Z

@@ Line 3: / Line 3: @@
 In this tutorial you will be learning about [http://www.openssh.org ssh (openssh)] and [http://fuse.sourceforge.net/sshfs.html sshfs], a network filesystem built on [http://fuse.sourceforge.net/ FUSE].
-* apt-get install sshfs
+===Setup===
-* mount remote ssh directory locally
-* do file operations on directory
+Install the openssh-server and sshfs packages:
-* unmount, see it go away
-* apt-get install openssh-server
+ sudo apt-get install openssh-server sshfs
-* ssh to local box
-* sshfs to local box, do a "loopback" mount
+Create a second user in the virtual machine named "other" (or any other name you wish to use):
 * dd a large file to local drive.  Do same thing over sshfs.  Which is faster?
-* hard link files locally, look at link counts
+* Can you sshfs to the SCS systems (e.g., access.scs.carleton.ca)?
-* hard link files over sshfs, look at link counts
+* Setup password-less login to the SCS system (and then undo it).

Soma at 18:40, 28 November 2014

2014-11-28T18:40:01Z

← Older revision		Revision as of 18:40, 28 November 2014
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	'''This tutorial is not yet finalized.'''		'''This tutorial is not yet finalized.'''

			In this tutorial you will be learning about [http://www.openssh.org ssh (openssh)] and [http://fuse.sourceforge.net/sshfs.html sshfs], a network filesystem built on [http://fuse.sourceforge.net/ FUSE].

	* apt-get install sshfs		* apt-get install sshfs

Soma at 00:50, 25 November 2014

2014-11-25T00:50:13Z

← Older revision		Revision as of 00:50, 25 November 2014
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	* hard link files over sshfs, look at link counts		* hard link files over sshfs, look at link counts
	* go into directory locally as root, look around. now do the same to mounted version. What do you see?		* go into directory locally as root, look around. now do the same to mounted version. What do you see?
			* look at inodes in local and remote system. How do they compare?

Soma: Created page with "'''This tutorial is not yet finalized.''' * apt-get install sshfs * mount remote ssh directory locally * do file operations on directory * unmount, see it go away * apt-get i..."

2014-11-25T00:37:16Z

Created page with "'''This tutorial is not yet finalized.''' * apt-get install sshfs * mount remote ssh directory locally * do file operations on directory * unmount, see it go away * apt-get i..."

New page

'''This tutorial is not yet finalized.'''

* apt-get install sshfs
* mount remote ssh directory locally
* do file operations on directory
* unmount, see it go away
* apt-get install openssh-server
* ssh to local box
* sshfs to local box, do a "loopback" mount
* dd a large file to local drive. Do same thing over sshfs. Which is faster?
* hard link files locally, look at link counts
* hard link files over sshfs, look at link counts
* go into directory locally as root, look around. now do the same to mounted version. What do you see?