vnc port though firewall Re: VNC: vncviewer no route to host on same lan

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On Sun, 2005-03-27 at 14:34 -0800, Richard Emberson wrote:
> Scot L. Harris wrote:
> 
> >On Sun, 2005-03-27 at 14:46, Richard Emberson wrote:
> >  
> >
> >>I've got two Fedora bozes (A & B) on the same lan (connected through a 
> >>netgear switch).
> >>They can ping each other and ssh bach and forth. There is a firewall 
> >>between the
> >>lan and the internet (the firewall is NOT between the two machines).
> >>
> >>On machine A, I've got a vncserver running. On machine A, I can run the 
> >>command
> >> > vncviewer A:1
> >>successfully; self vnc-ing works.
> >>
> >>On machine B, when I run the command
> >> > vncviewer A:1
> >>I get
> >>
> >>main:   unable to connect to host: No route to host (113)
> >>
> >>what wrong?
> >>    
> >>
> >
> >Most likely you have iptables running on the machine A and is blocking
> >port 5901.  Test it by disabling iptables on machine A.  If that works
> >then open port 5901.
> >
> >  
> >
> Thanks - that was it. I added:
> 
> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 5901 -j ACCEPT
> 
> to /etc/sysconfig/iptables and the Sun is shining once again.
> 
I am doing the same thing but I used a different command to open the
port though the firewall.
-A RH-Firewall-1-INPUT -p tcp --dport 5901 -j ACCEPT

As this is different from above could there be any problem using this?

Regards Neil



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