linux - How to automate a vnc+ssh solution -


i run application (call firefox) on work machine. problem need complicated ssh tunelling access access machine blocked outside , ports blocked internally. following.

ssh -v -l 1200:serverc:22 user@serverb (locally) ssh -v -l 5900:127.0.0.1:5900 -p 1200 user_from_serverc@127.0.0.1 (locally) x11vnc -safer -localhost -nopw -once -display :0 (on serverc) vinagre localhost::5900 (locally)

i run firefox (say) in vnc window opens , works.

however have bash script me. how can automate it?

there 2 problems.

  1. i need stay logged in after each ssh above tunelling work simple bash script stops after first step.
  2. i don't know how application run automatically in vnc window.

ideally type "./remote-firefox" (for example) locally happen.

try:

x11vnc -safer -localhost -nopw -once -display :0 #run manually on system_c

& on local system,

ssh -t -l 5902:localhost:5901 user_b@server_b 'ssh -t -l 5901:localhost:5900 user_c@server_c' & #note: enable password-less (key based) authentication "your_pc -> servb" & "servb -> servc"  vncviewer localhost:2 #run on local system

note: if commands fail, please try changing port numbers. in example, trying tunnel below:

your_pc:5902 <-> server_b:5901 <-> server_c:5900

i have not tested 2 level chain (i not know if x11vnc's -display parameter works across ssh, think, should.):

#run both lines on local system ssh -t -l 5902:localhost:5901 user_b@server_b "ssh -t -l 5901:localhost:5900 user_c@server_c 'x11vnc -safer -localhost -nopw -once -display :0'" & vncviewer localhost:2

edit: accomodate this:

yes that's it. annoyingly servb -> servc has port 5900 blocked. – anush

#run both lines on local system. may overhead, should work. ssh -t -l 5902:localhost:5901 user_b@server_b "ssh -t -l 5901:localhost:1200 user_c@server_c 'ssh localhost -l 1200:localhost:5900 & x11vnc -safer -localhost -nopw -once -display :0'" & vncviewer localhost:2

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