[Pkg-cups-devel] Bug#521311: (no subject)

[Dennis Schridde]

I experienced a similar issue on our cups installation. The machine has 
several IPs (in the same subnet) and a hostname that matches one of them. The 
clients access cups via another IP, though. This IP has no reverse entry 
defined in DNS. When cups replies to them, it apparently tries to reverse 
resolve the IP address over which it was connected and replies with whatever 
it found. In our case it finds nothing, which causes printer-uri-supported to 
be ipp://:631/... - i.e. it has an empty hostname. This confuses the clients - 
they are unable to retrieve any printer information.

The cups version is pretty old: 1.2.11 Does this issue still exist?
The upstream bug might be #2184 [1], but it says that it was fixed in 1.3, 
which would not explain why it happens for your version 1.3.8.

--Dennis

[1] http://www.cups.org/str.php?L2184
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