Difference between revisions of "Tunneling with OpenSSH"
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| − | + | ----------------------------------------------------------- | |
| − | + | | | | |
| − | + | | | | |
| − | --------- | + | --------- ----------- -------------- | |
| − | |localhost| | + | |localhost|-------------------------| gateway |------------------| hidden | | |
| − | --------- | + | --------- | 10.2.2.18 | | 172.16.0.42 | | |
| − | + | ----------- -------------- | | |
| − | + | | | | |
| − | + | ----------------------------------------------------------- | |
On localhost forward port 2222 to hidden's port 22: | 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 | ||
| Line 17: | Line 17: | ||
Then you can e.g. scp from localhost to ''hidden'' by using localhost's port 2222: | Then you can e.g. scp from localhost to ''hidden'' by using localhost's port 2222: | ||
scp -P 2222 file1 localhost: | scp -P 2222 file1 localhost: | ||
| + | |||
| + | = Examples = | ||
| + | This command forwards your computer's port 8080 to port 8080 of the host "proxy": | ||
| + | ssh -gL 8080:proxy:8080 localhost | ||
= See also = | = See also = | ||
* [[set up NAT]] | * [[set up NAT]] | ||
Latest revision as of 12:19, 16 September 2015
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:
Examples
This command forwards your computer's port 8080 to port 8080 of the host "proxy":
ssh -gL 8080:proxy:8080 localhost
