Re: Has anyone asked Comcast to stop blocking inbound ports?

["Grant M.-2" <user=130@nabble.blu.org>]

 Bill Horne wrote: 
> A customer wanted remote assistance, but their VNC server is set up to 
> only accept connections from my office IP address. However, I _could_ 
> ssh into the Linux server that's used for backups. How could I tunnel 
> into the Linux server and have it relay port 5900 out into the LAN at my 
> customer's site? 

Same way, except you'd use the internal IP of the other machine. 
Something like this: 

ssh -L5900:<Ip_of_vncserver>:5900 <backupserver_IP> 

and again, then connect to localhost:0 using vncserver. This tunnel 
forwards the traffic for port 5900 from your local desktop, through the 
Linux backup server, and over the internal network to the vncserver 
address, like so: 

LOCALDESKTOP <<===>> LINUXBACKUP <<===>> VNCSERVER 

I hope that helps, 
Grant M. 
-- 
Grant Mongardi 
Senior Systems Engineer 
NAPC 

[hidden email] 
http://www.napc.com/
781.894.3114 phone 
781.894.3997 fax 

NAPC | technology matters 


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