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Operating Systems Linux Ubuntu Connecting to a remote server Post 302279539 by pludi on Friday 23rd of January 2009 03:38:49 AM
Old 01-23-2009
You could try a probe from external using tcptraceroute and check if it's being blocked somewhere on the way, but you'll probably get a definite answer if you call your ISP. That way you could also ask them if there's any other way for you to access your machine at home (sometimes they can get coaxed into opening a port).

SSH, FTP, and HTTP can use other ports if necessary, not sure about VNC, but from a security view I'd suggest to enable VNC only for localhost and using an SSH tunnel to connect.
 

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x0vncserver(1)						     Virtual Network Computing						    x0vncserver(1)

NAME
x0vncserver - VNC server which continuously polls an X display SYNOPSIS
x0vncserver [parameters] DESCRIPTION
x0vncserver is a VNC server which continuously polls any X display, allowing it to be controlled via VNC. How usable it will be depends a lot on the machine it's running on, and what you're expecting. It won't be as fast as Xvnc or a native X server with VNC support compiled in, but in many cases it is the best option since it is just an ordinary X application requiring no special installation. It has many of the same parameters as Xvnc. Running x0vncserver -h will give a list of parameters with descriptions. Note that you need to explicitly specify an appropriate password file using the PasswordFile parameter. SEE ALSO
Xvnc(1) vncpasswd(1), vncviewer(1), vncserver(1), http://www.realvnc.com AUTHOR
Tristan Richardson, RealVNC Ltd. VNC was originally developed by the RealVNC team while at Olivetti Research Ltd / AT&T Laboratories Cambridge. It is now being maintained by RealVNC Ltd. See http://www.realvnc.com for details. RealVNC Ltd 03 Mar 2005 x0vncserver(1)
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