Address of nonexistent hosts...?

[Ryan Schmidt]

> On Sep 29, 2016, at 5:04 PM, Carlo Tambuatco <oraclmaster at gmail.com> wrote:
> 
> Just installed a port and got this message: 
> 
> Warning: Your DNS servers incorrectly claim to know the address of nonexistent hosts. This may cause checksum mismatches for some ports. See this page for more information: <https://trac.macports.org/wiki/MisbehavingServers>
> 
> So I visited the site but it doesn’t look like any of the cases apply to me, and I haven’t contacted my ISP since so far no checksum mismatches have been found, so not sure if anything needs to be done on my part…

If your DNS server claims that nonexistent hostnames exist, your DNS server is broken, and you should tell your DNS provider (perhaps your ISP) to fix their DNS server to conform to the relevant standards, and until they do, you should switch to a DNS server that does conform (perhaps Google DNS: 8.8.8.8 / 8.8.4.4).

You'll only run into problems if you try to install a port that has to build from source, and lists a download location on a hostname that no longer exists. That may be a rare circumstance, but wouldn't you rather not run into problems, even rarely?