Joseph Mack PhD, High Performance Computing & Scientific Visualisation
LMIT, Supporting the EPA Research Triangle Park, NC 919-541-0007 Federal
Infrastructure Contact-Ravi Nair 919-541-5467 - [EMAIL PROTECTED],
Federal Visualization  Contact - Joe Retzer, Ph.D. 919-541-4190 -
[EMAIL PROTECTED]

[EMAIL PROTECTED] wrote on 04/13/2005 01:54:08
PM:

>  From the faq <http://www.opendx.org/faq.html#cantconnect>

I did look, but didn't find this. Sorry

> One may be that your hostname does not resolve properly.
> You can test this by using the ping, and hostname
> commands to determine if you can ping your own machine

ping `hostname` works.

hostname and the IP in /etc/hosts agree with hostname and the IP found
by ifconfig.

> or you can try setting the DXHOST environment
> variable to "unix" to default to the local machine.

did this and also tried with "localhost".

In both cases after loading a (dx) program, I get udp sockets

[EMAIL PROTECTED] linux-2.4]# netstat -an | grep DX
unix  2      [ ACC ]     STREAM     LISTENING     508820
/tmp/.DX-unix/DX1920
unix  39     [ ]         STREAM     CONNECTED     508809
/tmp/.DX-unix/DX1900

however DX times out, and then these sockets disappear.

> A second reason
> may be that you have a firewall running on your system that refuses
> the socket communication over the IP ports that DX uses.
> Try shutting off your firewall to see if this fixes the problem.

iptables -L, -L -t nat and -L -t mangle are empty.

> Other tests to try: Does dx -execonly work?

I get sockets like above if that's what you mean.

The kernel has unix sockets enabled (built in not module).

I didn't set this machine up. AFAIK it's a plain vanilla RedHat
something
or other. I have a phone call in to the sysadmin to see if he did
anything
"funny" to it, but I wouldn't expect so.

Thanks Joe

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