Default 'fedora' hostname and failing split DNS VPN

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Currently I am connecting to a VPN that provides a few DNS search entries. One of these domains on the search path is having DNS resolution problems. This is not per se the the problem I am writing this email for.

The problem is that starting Firefox and Thunderbird take a long time, it took time to detect the DNS resolution problem was the origin of these timeouts. I am not using that domain that is having resolution problems.

The real culprit is the default `fedora` hostname, instead of localhost. Starting a Wireshark capture there are DNS searches for fedora.domain_failing.tld, when starting Firefox and Thunderbird. The presence of the search path on generated /etc/resolv.conf isn't the cause of these DNS searches, I edited them out while the VPN was still active.

Even 'ping fedora' start doing these searches with the search paths appended. 'ping localhost' doesn't do that. The only workaround to this issue is to add fedora to the localhost entries on /etc/hosts.

This in some way is a DNS leak, even on a VPN with perfectly working DNS resolution, the fedora name should not be searched on these domains until I am using the fedora full hostname on these domains. Even worse when simply starting applications like Firefox o Thunderbird.

Maybe changing the default hostname to fedora wasn't a good idea after all, or at least fedora should be added to the default /etc/hosts.
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