User Tools

Site Tools

Trace:
using_ssh_for_connections_transfer_to_from_sdf

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
using_ssh_for_connections_transfer_to_from_sdf [2021/03/15 21:48] – [SSH Public Key Authentication] hc9using_ssh_for_connections_transfer_to_from_sdf [2024/09/04 17:38] (current) – cleaned up a bit peteyboy
Line 22: Line 22:
  
 On the client side, a lot of programs are available; you may be best off by using a search engine with the keywords ''ssh client'' and your local operating system. On the client side, a lot of programs are available; you may be best off by using a search engine with the keywords ''ssh client'' and your local operating system.
 +
 +
 +How to get to an ssh client depends on your OS: [[ssh client]]. Special topics below take advantage of a popular free tool for Windows called 'puTTY'.
  
 ===== SDF issues ===== ===== SDF issues =====
Line 31: Line 34:
 [[using_ssh_for_connections_transfer_to_from_sdf#ssh_public_key_authentication|Public key authentication]] will not work, if the home directory (''$HOME'') or the user's ssh directory ''$HOME/.ssh'' are world writable. Your home directory should never be world writable, anyway! [[using_ssh_for_connections_transfer_to_from_sdf#ssh_public_key_authentication|Public key authentication]] will not work, if the home directory (''$HOME'') or the user's ssh directory ''$HOME/.ssh'' are world writable. Your home directory should never be world writable, anyway!
  
-To make sure you have the right permissions, execute the following command in the shell while logged into your account:\\ ''chmod go-w $HOME $HOME/.ssh''+To make sure you have the right permissions, execute the following command in the shell while logged into your account: 
 + 
 +''chmod go-w $HOME $HOME/.ssh''
  
 You should look up ''chmod'' in the manpages, if you don't understand this command. You should look up ''chmod'' in the manpages, if you don't understand this command.
  
-=== special topics ===+====== special topics ======
  
 ===== How to enable Port Tunneling and Why ===== ===== How to enable Port Tunneling and Why =====
Line 41: Line 46:
 === What is port tunneling good for === === What is port tunneling good for ===
  
-Port tunneling is the ability to tunnel from your internet point for presence back to SDF servers and use the SDF servers like a [[http://en.wikipedia.org/wiki/SOCKS|Socks 4 Proxy]]. This allows your connection to be encrypted via SSL between your internet access point and SDF. This allows your traffic to be more secure if you are on a public internet access point+Port tunneling is the ability to tunnel from your internet point for presence back to SDF servers and use the SDF servers like a [[wp>SOCKS|Socks 4 Proxy]]. This allows your connection to be encrypted via SSL between your internet access point and SDF. This allows your traffic to be more secure if you are on a public internet access point
  
 === What tools are needed === === What tools are needed ===
Line 67: Line 72:
 === How to use the Tunnel you just enabled === === How to use the Tunnel you just enabled ===
  
-I am now going to configure Trillian (A great multi IM chat program) to use the Tunnel. It should be obvious how to configure other applications from these screenshots. \\  First click on the "Trillian Prefernces" and select "Advanced Preferences". Select "Proxy" If you want all your chat services to use the proxy select use one setting for all services checkbox. Otherwise configure this on each service you want to encrypt over the tunnel.+I am now going to configure Trillian (A great multi IM chat program) to use the Tunnel. It should be obvious how to configure other applications from these screenshots. \\  First click on the "Trillian Preferences" and select "Advanced Preferences". Select "Proxy" If you want all your chat services to use the proxy select use one setting for all services checkbox. Otherwise configure this on each service you want to encrypt over the tunnel.
  
 {{:using_ssh_for_connections_transfer_to_from_sdf:trillian.gif?nolink|Trillian screenshot 1}} {{:using_ssh_for_connections_transfer_to_from_sdf:trillian.gif?nolink|Trillian screenshot 1}}
Line 124: Line 129:
 You now have two new files in the ~/.ssh/ directory. These files are your public and private key and will be named id_rsa.pub and id_rsa respectively. The ssh, scp and sftp programs use these files automatically. To enable the server to recognize your key, follow these steps: You now have two new files in the ~/.ssh/ directory. These files are your public and private key and will be named id_rsa.pub and id_rsa respectively. The ssh, scp and sftp programs use these files automatically. To enable the server to recognize your key, follow these steps:
  
-1. Log in as normal and run the following commands. +  - Log in as normal and run the following commands. 
- +  - ''$ mkdir ~/.ssh'' 
-2. ''$ mkdir ~/.ssh'' +  - ''$ cd ~/.ssh/'' 
- +  - ''$ touch authorized_keys'' 
-3. ''$ cd ~/.ssh/'' +  - Open the authorized_keys file you just created in a text editor. 
- +  - Paste the contents of your id_dsa.pub file in to the authorized_keys file. 
-4. ''$ touch authorized_keys'' +  - Save the authorized_keys file.
- +
-5. Open the authorized_keys file you just created in a text editor. +
- +
-6. Paste the contents of your id_dsa.pub file in to the authorized_keys file. +
- +
-7. Save the authorized_keys file.+
  
 You should now be able to log in using SSH Key Authentication. You should now be able to log in using SSH Key Authentication.
Line 157: Line 156:
 This client is often supplied by universities to their students. This client is often supplied by universities to their students.
  
-|**1**|Access the settings dialogue under "Edit -> Settings"| +  - Access the settings dialogue under "Edit -> Settings" 
-|**2**|Under the ''Connection'' section, make sure that the tickbox marked Connect through firewall is checked| +  - Under the ''Connection'' section, make sure that the tickbox marked Connect through firewall is checked. 
- +    - {{:using_ssh_for_connections_transfer_to_from_sdf:ssh-connection-setting.png?nolink|}} 
-{{:using_ssh_for_connections_transfer_to_from_sdf:ssh-connection-setting.png?nolink|}} +  - Under the ''Firewall'' section (near the bottom of the list) enter your SOCKS proxy settings in the form of ''socks:[host]:[port]'' Illustrated are the settings for TCD. 
- +    - {{:using_ssh_for_connections_transfer_to_from_sdf:ssh-firewall-setting.png?nolink|}} 
-|**3**|Under the ''Firewall'' section (near the bottom of the list) enter your SOCKS proxy settings in the form of ''socks:[host]:[port]'' Illustrated are the settings for TCD.| +  -Connect as normal!
- +
-{{:using_ssh_for_connections_transfer_to_from_sdf:ssh-firewall-setting.png?nolink|}} +
- +
-|**4**|Connect as normal!|+
  
 === PuTTY === === PuTTY ===
Line 172: Line 167:
 A popular free SSH client. A popular free SSH client.
  
-|**1**|Select in the left window "Proxy" (located under the "Connection" branch)| +  - Select in the left window "Proxy" (located under the "Connection" branch) 
- +    - {{:using_ssh_for_connections_transfer_to_from_sdf:ssh-putty-config.png?nolink|}} 
-{{:using_ssh_for_connections_transfer_to_from_sdf:ssh-putty-config.png?nolink|}} +  - Enter in your details. Illustrated are those for TCD. 
- +  - Connect as normal! (You may want to save these details for future use)
-|**2**|Enter in your details. Illustrated are those for TCD.| +
-|**3**|Connect as normal! (You may want to save these details for future use)|+
  
 === Commandline ssh client === === Commandline ssh client ===
using_ssh_for_connections_transfer_to_from_sdf.1615844895.txt.gz · Last modified: 2021/03/15 21:48 by hc9