As far as I know any website can be accessed directly via an IP even if all DNS servers are down. Does any website hold a registry of IPs for popular sites (or tons of sites) in case a major DNS breakdown occurred? I am asking out of curiosity in light of the events of … Read More “Is there a registry of IPs for popular sites in case DNS servers globally went down?” »

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My zone file looks something like this: @ in soa ns1 myname 1475840896 14400 1800 604800 86400 ns ns1 ; THIS LINE ns ns2 […] Since ns1 is already declared in the SOA RR, is the highlighted line really neccessary? submitted by /u/pfo_ [link] [comments] Powered by WPeMatico

Does anyone have any experience with cybersquatting? I’m looking to start a company “foo” and it looks like foo.com is owned by company bar. Bar owns foo.com through an acquisition of a company named “foo service” many, many years ago. They’re not responding to any requests for selling foo.com so I’m wondering if I go … Read More “Cybersquatting” »

When trying to switch webhosts recently, I routed my domain root to a CNAME entry in DNS. I figured since mail was handled via MX records, it would be unaffected. Today, the postmaster returned a delivery delayed to <myusername>@<cname-value> instead of my actual email address. Do CNAME entries trump MX records in DNS, or is … Read More “CNAME question” »

I’m looking for a way, preferably that runs in a unix-like environment that can do a recursive lookup and then manipulate the answer, for instance, replace something in ip-number. For instance: 1 – Client looks up yada001.hello.local 2 – The clients selected recursor asks a DNS server that returns yada001.hello.local: 10.10.10.5 3 – A rule … Read More “Rewrite answers from the recursor?” »