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My problem is that my Ubuntu machine seems to have its FQDN setup correctly, yet I cannot ping the FQDN from a windows machine on the same network.

Output of various commands on my Ubuntu machine:

hostname    : test
hostname -d : testdomain.com
hostname -f : test.testdomain.com

My Ubuntu version is 13.04.

Relevant line in /etc/hosts:     test.testdomain.com test

Hosts line from /etc/nsswitch.conf:

hosts:        files dns

Line from /etc/dhcp/dhclient.conf:

send host-name = gethostname();

Now, my network uses Windows DNS servers and I found this bug report that contains what looks like a relevant issue. It was fixed in isc-dhcp - 4.2.4-1ubuntu10.2

Ubuntu 13.04 comes with 4.2.4-5ubuntu2

My question is: How do I get this to work so that the Windows DNS Server gets successfully updated with the IP address and FQDN of the ubuntu machine?

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Having a DNS resolve test.testdomain.com to runs afoul of the convention that means localhost, that is "this computer right here". –  waltinator Jan 22 at 19:51
that line was created by the Ubuntu installer. –  Carl Jan 23 at 1:14

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