[CentOS] vncserver on IPv6

Robert Moskowitz rgm at htt-consult.com
Mon Aug 11 16:01:24 UTC 2008


Not working....

Rob Lockhart wrote:
> In /etc/sysconfig/vncservers I have something like this:
>
> VNCSERVERS="1:myusername"
> VNCSERVERARGS[1]="-geometry 1400x1050 -depth 16 -localhost"
>
> (so I can only use localhost, which means I only allow connections 
> over ssh or from the local machine).
>
> Yours might be something like this:
>
> VNCSERVERS="1:robert"
> VNCSERVERARGS[1]="-geometry 1400x1050 -depth 16 InTransports=IPv6,IPv4"

Well first my line has [2].  I changed that to [1] and tried all sorts 
of variants to the above, including putting a - infront of InTransports 
(like other options), and replacing the = with a space.  No listening on 
IPv6.

I have foudn the RealVNC support mailing list and sent a question there, 
hopefully to get answers.  But if anyone has anything to suggest here, 
please do.

>
> then obviously as root:
> service vncserver restart
>
> Have you tried that?  Does VNC work over IPv4?
>
>
> On Fri, Aug 8, 2008 at 3:55 PM, Robert Moskowitz <rgm at htt-consult.com 
> <mailto:rgm at htt-consult.com>> wrote:
>
>     http://www.realvnc.com/products/enterprise/4.1/ipv6.html
>
>
>       IPv6 support in VNC Server E4.1.7/P4.1.2
>
>     VNC Server E4.1.7 & P4.1.2 are fully IPv6-aware, but is shipped
>     with IPv6 support disabled by default, for security reasons. IPv6
>     can be enabled by setting "InTransports=IPv6,IPv4" (the default
>     being IPv4 only), either on the command-line when starting
>     vncserver under Unix
>
>     Ok.  we have vnc-server-4.1.2-9.el5.i386.rpm, so it SHOULD support
>     IPv6.
>
>     Don't know how to add a setting to the command-line, as I rund
>     VNCserver via the service command, but I added it to
>     /etc/sysconfig/vncservers:
>
>     InTransports="IPv6"   (note I also tried without the quotes)
>
>     and netstat -na|grep 5902
>
>     shows vncserver only running on IPv4 and I can only connect to it
>     via IPv4.
>
>     So what am I missing?????
>
>
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