Information about DNS and network
I have the following setup in a lab: “test.site” will resolve to 5.5.5.1 via DNS server 5.5.5.95. The response will be set with a DNS TTL of 5 seconds. I have confirmed in dig this functions as expected: root@GSLB-client:~# dig test.site ; <<>> DiG 9.16.1-Ubuntu <<>> test.site ;; global options: +cmd ;; Got answer: ;; … Read More “Browsers not honoring DNS TTL?” »
While setting up a CNAME record, is it mandatory to add A record which contains the IP address corresponding to the CNAME. For e.g.I have a host name abc.com whose alias is xyz.com and the IP address of xyz.com is d.e.f.g. Now for anyone resolving abc.com should I set up to return both CNAME and … Read More “DNS and CNAME records” »
submitted by /u/shreyasonline [link] [comments] Powered by WPeMatico
I’m working with a fairly new environment and the DNS server (on 2019 DC) has no timestamp column! (wtfers!) To make matters worse, it’s not an option under the add/remove columns interface, and I can’t seem to locate a fix – just a couple of others posting about experiencing it as well. Anyone run into … Read More “Server 2019 DNS – no timestamp column bug” »
Exploring some alternate IP geolocation sources for dnscheck.tools. Which do you think shows more accurate locations? now: dnscheck.tools a: –tmp-test-geo-a b: –tmp-test-geo-b Thank you submitted by /u/dnschecktool [link] [comments] Powered by WPeMatico
Am setting up DMARC with policy=none we still want to get the authorized and unauthorized senders on DMARC report, from the reports i see Spam IP address failing SPF, DKIM and DMARC using our domain and the spam emails end up successfully delivered to our customer inbox. is there a way to block the incoming … Read More “Block Spam IP Address using your domain from DMARC reports on DNS” »
Yes yes, I know, add multiple A records using the same hostname and different IPs, got it. (Environment: internal server 2019 dns server) …but what’s the trick to force requests to move to the next responding IP if the first fails to be responsive? …this is great if you’re running PDQ but if you’re not… … Read More “What’s the trick: multiple IPs one hostname” »
I have this domain registered with Godaddy but the nameservers are pointing to different provider. I want to add new CNAME record in order to integrate a payment gateway. Can I get access to the DNS record if i added default Godaddy Nameservers along with the custom nameservers (cloudfare)? submitted by /u/ash111717 [link] [comments] Powered … Read More “Trying to add CNAME record” »
Identifying a provider given an IP address can be tricky. https://dnscheck.tools performs RDAP queries to find the registrant of an IP block. These names are not always consistent across IP blocks owned by the same organization, and some IP blocks have missing or incomplete registrant data. You can use https://info.addr.tools to explore some RDAP data … Read More “An open request to public dns resolvers” »
submitted by /u/_ThePsychonaut [link] [comments] Powered by WPeMatico