DNS & network news

Monthly Archive: April 2019

CNAME to NOIP error

I am getting an error with pointing a cname to a noip address. Basically something is happens – in that I get the below error:


my setup is as follows:

  • I am hosting an ASP.NET application on my local network with noip updating the ip successfully to (not my real hostname) mydom.ddns.net using a “port 80 redirect” to port 8080 on my IIS server
  • on godaddy I have my own custom domain. I’ve set a cname page.mycustomdom.com

If I go directly to mydom.ddns.net, then the webapp loads just fine, however if I use page.mycustomdom.com I get the image in the above screenshot.. which is not part of my application and I have no idea where this is coming from.

Using host page.mycustomdom.com command in terminal shows me the right pointers as well. Any ideas what may be going wrong?

submitted by /u/electric-sheep
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Cannot access websites even whilst my DNS is set to Google

My country is blocking certain webpages and usually I am able to get around this with the DNS settings to, or but this isn’t working. I’ve cleared cache on my browser and flushed my DNS through CMD using ipconfig and restarted my PC as well but no dice. Suggestions? I don’t want my country telling me what I can or can’t consume on the net.

submitted by /u/MrSeanicles
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Domain set as ServerName refuses to load from own DocumentRoot, goes to 000-default’s

I’m so confused here. All my other domains are acting fine, but this one – pidgi.net – is being weird. The parent domain (listed as ServerName in pidgi.net.conf) is deciding to load the catch-all DocumentRoot (defined in 000-default.conf) instead of the DocumentRoot listed two lines below it. The ServerAlias, www.pidgi.net, loads from the correct DocumentRoot.

I’ve done so many toggles of a2dissite/a2ensite (to both pidgi.net.conf and 000-default.conf), reloading and restarting Apache, re-configuring DNS records… I’m stumped. Any ideas?

(P.S. Yes, if you try and access it right now, things seem fine – I temporarily set the DocumentRoot of 000-default.conf to the same DocumentRoot as pidgi.net.conf, but I’d rather not keep it like that)

DNS settings



submitted by /u/immewnity
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Strange DNS queries… Malware?

I’m working on an unrelated (I hope!) issue and noticing a bunch of failed queries for patterns like dhjsfnewat.domain.com. The domain.com aspect is correct for my organization, but the preceding text is a series of characters that looks like someone smashed their head on the keyboard. It seems to be all letters (no numbers or punctuation) and relatively random. They’re different from my org’s usual naming schemes for devices.

However, I notice specific patterns repeating, sometimes from multiple hosts! Googling these odd names comes up mostly empty, but one I did earlier have a hit for a slightly-dodgy anti-malware site:


(The string I saw was ‘ CTSINMBPSPAA’ in lookups.)

Am I being paranoid? Should I be writing these up for security notifications?

submitted by /u/macbalance
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