Mi first recommendation would be to download Elastix Without Tears. is the best guide out there to configure Elastix.
To access the web interfase you should know what ip your machine has. You should log in the linux console and type:
That should give you the ip of your machine if you use dhcp, if not just give un ip to your machine for example:
ifconfig eth0 192.168.2.1 netmask 255.255.255.0
That would assign the ip 192.168.2.1 to the eth0 device. eth0 means first ethernet if you only have on ethernet card then you would only have eth0, if you have more then you would have eth1, eth2, etc...
Can you ping Elastix from your workstation? if not you might have a firewall between the two the two computers. You would have to check the connectivity and that the both ips are on the same network segment.
If you can ping then the problem might be that the apache web server is not running. You could try:
service httpd status
If the result is that apache is not running start it:
service httpd start
Don't forget to get Elastix without tears it would save you a lot of time
So apparently the IP I am using on both the elastix and my workstation have to be nearly consistent, the problem I am having now is my workstation is on a static IP. When I try to change the elastix IP i get an error. NO device. Also there is no firewall between my elastix server and I. I have also tried both Firefox and IE.