Difference between revisions of "Tunneling with OpenSSH"

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imported>ThorstenStaerk
imported>ThorstenStaerk
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On localhost issue
+
On localhost forward port 2222 to hidden's port 22:
 
  ssh -L 2222:172.16.0.42:22 gateway
 
  ssh -L 2222:172.16.0.42:22 gateway
  
Then you can e.g. scp from localhost to ''hidden'' by using gateway's port 2222:
+
Then you can e.g. scp from localhost to ''hidden'' by using localhost's port 2222:
  scp -P 2222 file1 gateway:
+
  scp -P 2222 file1 localhost:
 
 
  
 
= See also =
 
= See also =
 
* [[set up NAT]]
 
* [[set up NAT]]

Revision as of 06:31, 19 December 2013

SSH Tunneling or SSH port forwarding is typically useful if you have a network with a private segment like this:


                                                                           -----------------------------------------------------------
                                                                          |                                                           |
                                                                          |                                                           |
                           ---------                                -----------                    --------------                     |
                          |localhost|------------------------------|   gateway |------------------|  hidden      |                    |
                           ---------                               | 10.2.2.18 |                  | 172.16.0.42  |                    |
                                                                    -----------                    --------------                     |
                                                                          |                                                           |
                                                                           -----------------------------------------------------------

On localhost forward port 2222 to hidden's port 22:

ssh -L 2222:172.16.0.42:22 gateway

Then you can e.g. scp from localhost to hidden by using localhost's port 2222:

scp -P 2222 file1 localhost:

See also