[ubuntu] DNS working on DHCP server but not on client

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http://ubuntuforums.org – Hi! I've successfully setup my DHCP server. Clients can connect and an IP gets assigned and the client is connected to the internet. I have one problem, though. I can access(ping, telnet, web browser) an IP address but not a hostname from a client connected to the server. I can ping and telnet both IP addresses and hostnames from the server itself, though. Honestly, I don't know what I'm missing here. I just know that it's a DNS issue. Has anyone had the same problem? Thanks! ()