Enabling VNC

[Jeremy Conlin]

On 2004-10-19 14:02:10 -0400, Volker Kindermann <ml at ps102.de> said:
> 
> you need a rule such as
> $IPTABLES -A INPUT -p tcp -d <linuxmachine> --destination-port 5901 -m 
> state --state NEW -j ACCEPT
> 
> (all one line)
> 
> and something like
> 
> $IPTABLES -A INPUT   -m state --state ESTABLISHED,RELATED -j ACCEPT
> $IPTABLES -A OUTPUT  -m state --state ESTABLISHED,RELATED -j ACCEPT
> $IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
> 
> where $IPTABLES is the path to the iptables binary.

Well...
I tried to do those four commands, but it didn't work.  When I tried to 
connect via my VNC client it said connection refused. :(  Does the 
iptables command change/write to the /etc/sysconfig/iptables file?  
Isn't this what defines what comes in and out?  Sorry if my questions 
are so basic; this is far outside my area of expertise.
Thanks,
Jeremy