Changes between Version 6 and Version 7 of tutorials/ssh


Ignore:
Timestamp:
10/18/19 20:22:02 (5 weeks ago)
Author:
jkol
Comment:

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  • tutorials/ssh

    v6 v7  
    251251=== SSH Tunneling ===
    252252
    253 A common need is to connect to some resource on the testbed, as if it were local. SSH provides this functionality.
    254 
    255 The simplest variant is via an openssh config file.
    256 On Linux or Mac, via the terminal, make or edit a file at
    257 {{{ ~/.ssh/config }}} by default.
    258 
    259 Make an entry like the following, replacing the specifics as needed
    260 
    261 {{{
    262 Host console.sb1.cosmos-lab.org
    263   LocalForward 9001 srv1-lg1.sb1.cosmos-lab.org:80
    264 }}}
    265 
    266 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.
    267 
    268 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.
    269 
    270 To forward an additional port, or the same port on another device, add more lines.
    271 {{{
    272 LocalForward 9002 srv1-lg1.sb1.cosmos-lab.org:443
    273 LocalForward 9003 srv1-lg1.sb1.cosmos-lab.org:80
    274 LocalForward 9004 srv3-lg1.sb1.cosmos-lab.org:9090
    275 }}}
    276 
    277 Just ensure that the ports on the left don't conflict.
    278 
     253A common need is to connect to some resource on the testbed as if it were local. SSH provides this functionality. Go to the [wiki:tutorials/ssh_tunnel Configuring SSH Tunnels tutorial] to learn how to configure these.
    279254 
    280255