Can't open display: hostname:0.0

[Ray Van Dolson]

On Thu, Apr 26, 2007 at 02:39:30PM -0700, Dave Martini wrote:
> # xclock
> Error: Can't open display: raider4:0.0
> 
> What will cause the above error? I'm logged into a remote machine from 
> my own RHEL 4 box.
> I also typed xhost +hostname from my RHEL 4 box to allow the other 
> machine to display on my server. My DISPLAY environment variable is the 
> correct name of my RHEL 4 box.

No firewall/iptables rules getting in the way?

Ray