Information about DNS and network
HELP PLEASE. im getting the 451 4.4.0 dns query failed for every domain. We can not send any outbound emails out. they are all sitting in the queue. The company got a ransom ware virus, and in the process of correcting everything they restarted the Exchange server, thats when they noticed that they could not … Read More “451 4.4.0 dns query failed on exchange 2010 For all domains” »
Why doesn’t ICANN have control over country-code top-level domain name (ccTLD)? Who controls it, is it some organization in that particular country? Doesn’t this create a sort of confusion and disorder? submitted by /u/CheBurashka_GG [link] [comments] Powered by WPeMatico
Because of recent flakiness in certain ccTLD authoritative nameservers, I need to create a reference document recommending that gTLDs such as com, net, org, and info be preferred to those with potentially flaky infrastructure. Can anyone point me to some documentation I might use as background research in creating this? In particular, I’m looking for … Read More “gTLD Recommendations & Theory” »
Hey there, Is anyone using the amen DNS registrar ? None of our domains hosted on Amen right now are answering. We cannot resolve any dns query on any hosted domains and the website seems down with a “server not found”. We noticed this since ~5:30 pm GMT+1 edit : backup up since 8:10 pm … Read More “Amen DNS provider down ?” »
submitted by /u/Zykatious [link] [comments] Powered by WPeMatico
Forgive my lack of knowledge, I’m completely new to this. I’m learning about various protocols and the general architecture of the Internet. I’m doing a project on the October 21 DDoS attack on Dyn Inc., which shut down a good chunk of the US’ Internet. I’m pretty sure I get the whole “DNS is like … Read More “What do DNS service providers do, exactly? (help a n00b)” »
Hello everyone This morning (danish time) we saw an issue with resolving MX records on all our Office 365 costumers. I do not think it was an issue with Office 365 but rather a DNS issue. We did not manage to figure out what went wrong before the problem was gone. See this post from … Read More “Issue with resolving MX records” »