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Old 05-31-2007, 01:38 PM   #1
vortmax
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DNS and DHCP issue


I have a redhat 5 server on a campus network. I registered the hostname with the DNS.

My problem is the DHCP server is assigning the server a different IP then is assigned to the hostname. If I set the IP statically to that given by the DNS, I can access the machine, but it cannot connect outside of the firewall.

So I have to choose between being able to access the machine via hostname (static IP) or allow it to connect to the internet (DHCP).

Does this sound like a configuration issue in the server, or something that needs to be changed in the DNS/DHCP?
 
Old 05-31-2007, 02:32 PM   #2
FMC
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Are you the server administrator? If so, then we can help you to configure the server to allow static IP, but if not, you will have to accept the fact that you have a dinamic IP address!

To avoid this kind of problem you can use a service like DynDNS (http://www.dyndns.com/). You register there and everything, then you install a client in your machine and every time your IP address change, the client will update the hostname for you.

[]´s, FMC!
 
Old 05-31-2007, 02:51 PM   #3
vortmax
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I am the admin on the server, but I do not have access to the dns server.
 
Old 05-31-2007, 02:56 PM   #4
FMC
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Ok, you´re the adm on the server, but you have a firewall and a DHCP server between your server and the internet.

If you dont have a static IP you will need something like DynDNS anyway.

[]´s, FMC!
 
Old 05-31-2007, 07:13 PM   #5
vortmax
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thanks for the help, I got it sorted out now. When I first registered the name in the DNS, it was on a different machine. When I moved everything over to a different machine, I apparently forgot to have them update the hardware address on file.
 
  


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