Information about DNS and network
So, I am trying to link a few CNAME records to an A record, however it would appear that none of the CNAME records are valid. Here is how I have it set up(using godaddy if it matters): A: Host:PointsTo Col:CORRECTIP CNAME: Host:PointsTo adml:col mail:col but when I do mail.site.com I get “ERR_NAME_NOT_RESOLVED”, but col.site.com … Read More “Records not linking properly.” »
Lately I have seen a case where someone got themself an own custom TLD, but hadn’t used it yet. Checking it resulted in a MX entry for the TLD. So I’m asking myself: could one register a custom TLD and use it as a valid address for just one server? For example according to RFC5321 … Read More “Using top-level domains as a valid address” »
submitted by /u/based2 [link] [comments] Powered by WPeMatico
I’ve set up a local DNS server at home. It works great, but my problem is that the crappy “user friendly” router/switch/DHCP server/base station/plastic box does not let me configure which DNS servers hosts should be told about. Are there any alternatives to using DHCP for this (other than configuring all hosts manually)? submitted by … Read More “Alternative to DHCP for telling hosts about a local DNS server?” »
Hey all, I am getting a certificate security alert from a domain that I have never heard of. autodiscover.DOMAIN.com prompts me with the security alert. I have not found very many similar cases online anywhere. This is a screen cap of the Alert and the Certificate: http://imgur.com/yu73Bcl submitted by /u/PeterDinklebot [link] [comments] Powered by WPeMatico
I’m building a private smartdns, and I want to whitelist ip addresses of my users. I have this working except its a manual process. My question is, if I give my users a page where they can update their IP address…are there any security concerns here? I know I can’t trust they are giving me … Read More “Question about access using ipset/iptables from a db” »
submitted by /u/danyork [link] [comments] Powered by WPeMatico