Author: firstdns

I’m trying to locate a super simple beginner’s course in DNS, but it needs to be practical. I have an employee who has never worked with DNS, but I need her to copy and clear out unnecessary DNS entries in our server. It seems like all of the simple courses begin with some sort of … Read More “What’s a good practical beginner’s course? It could even be an ebook!” »

Any help appreciated. submitted by /u/soysux [link] [comments] Powered by WPeMatico

Every time we switch to a new e-mail server we have to change all devices to use the new IMAP + SMTP host names, which incurs many, maaany hours of phone support. Is there a way to have “imap.mydomain.com” and “smtp.mydomain.com” transparently point to whichever specific host names required by any given provider? I have … Read More “Sick of having to update mail settings” »

Hello I’m thinking of trying to become a public DNS resolver like Google or cloudflare how would I host a public DNS resolver safely or at least try to mitigate the DDOS problems submitted by /u/CyberCreek [link] [comments] Powered by WPeMatico

Can someone help me with the correct hostname to put in? Apologies for the noob question. I am a noob. submitted by /u/soysux [link] [comments] Powered by WPeMatico

I’m trying to set up a couple of glue records on a domain managed via Google Cloud DNS. Several searches are pointing me in the direction of a ‘Registered hosts’ section… But i’m having a hard time finding that setting anywhere. Is there anyone here, how can point me in the right direction? Pointers, screenshots … Read More “Glue records on Google Cloud DNS” »

Hey! I’m having issues setting up zone transfers with PowerDNS on a debian machine with another debian machine (master / slave configuration). The zone transfers don’t work when I have the slave machines IP in the allow-axfr-ips setting however when I add the internal networks gateway IP to the allow-axfr-ips setting this does work. The … Read More “PowerDNS and Zone Transfers” »

Hi there, At my job, I’m in charge of maintaining our many websites and in that connection I often set up simple records when pointing a subdomain, getting approval through a txt record or likewise. Nevertheless, we have an extern who is charging a lot every month for “maintaining DNS security”, whilst I don’t really … Read More “DNS security, what is there really to do?” »

General Problem: trying to setup a custom email domain on Zoho Details: My website is currently hosted on Netlify. My domain is held on Google Domains. When I type in the MX records on my Google Domains page a yellow warning comes up. “Your domain isn’t using these settings.” When I click “switch to these … Read More “How to format and input Netlify DNS records into the Custom Records section of Google Domains?” »

Hello Everyone, We have few Primary AD integrated DNS servers and bunch of Secondary servers. A while back we realized few of the secondary servers not replicating records from couple of zones (which also happened to be Windows based but set as secondary with no AD on those servers) After removing all masters except one, … Read More “Monitoring DNS replication between primary and secondaries” »