Changes between Version 3 and Version 4 of User Guide/Remote Access/SSH

Timestamp:

Oct 18, 2019, 12:45:01 AM (6 years ago)

Author:

msherman

Comment:

—

User Guide/Remote Access/SSH

@@ -248 +248 @@
 
 [[BR]]
+
+=== SSH Tunneling ===
+
+A common need is to connect to some resource on the testbed, as if it were local. SSH provides this functionality.
+
+The simplest variant is via an openssh config file.
+On Linux or Mac, via the terminal, make or edit a file at
+{{{ ~/.ssh/config }}} by default.
+
+Make an entry like the following, replacing the specifics as needed
+
+{{{
+Host console.sb1.cosmos-lab.org
+  LocalForward 9001 srv1-lg1.sb1.cosmos-lab.org:80
+}}}
+
+Now, when you ssh to console.sb1.cosmos-lab.org, traffic that you send to localhost port 9001, will be proxied and sent to srv1-lg1.sb1.cosmos-lab.org port 80. We commonly use this to access webUIs and similar things running on a node.
+
+Most SSH clients for other platforms have similar functionality. The important thing is to remember that the left side is your local port, and the right side is something that $HOST can talk to.
+
+To forward an additional port, or the same port on another device, add more lines.
+{{{
+LocalForward 9002 srv1-lg1.sb1.cosmos-lab.org:443
+LocalForward 9003 srv1-lg1.sb1.cosmos-lab.org:80
+LocalForward 9004 srv3-lg1.sb1.cosmos-lab.org:9090
+}}}
+
+Just ensure that the ports on the left don't conflict.
+
+  
+
+
 === If you deleted the "@internal1" key from your profile ===