Help on port forwarding please..


 
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Top Forums UNIX for Advanced & Expert Users Help on port forwarding please..
# 1  
Old 03-17-2016
Help on port forwarding please..

Hi experts,

We have windows machine ( A ) in one network & 2 Linux Servers ( B & C ) in another network. There is a firewall between these 2 networks and SSH (TCP/22) & HTTPS (TCP/443) are allowed from A to B only (but not to C). There is no personal firewall / iptables running on any machine. There is no access restrictions between B & C. We need to access port 443 of C from A. Is it possible? I tried various documents suggesting port forwarding technique using putty but none of them worked unfortunately (they are bit confusing too)

1. How to access 443 port of C from A?
2. if A is "Linux machine" (instead of Windows) how to achieve the same? ( i guess ssh -L command should be used but it did not work)

ensured AllowAgentForwarding yes & AllowTcpForwarding yes are set on all linux machines.


Please advise, thanks a lot!!

Last edited by magnus29; 03-17-2016 at 02:08 PM..
# 2  
Old 03-17-2016
Something like
Code:
ssh -f  -L 8888:serverCip:443 serverBip sleep 300

worked for me; With this in background (-f option) you can address the local port 8888 and be forwarded to server C:443.
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