I’ll be hosting a site for someone (on their subdomain) who can’t make frequent changes to their DNS, but I want to be able to implement a failover mechanism where I can change the A record whenever I need to (or have a Cloudflare load balancer do it). I registered a new domain I control … Read More “Can (should) I use a CNAME record to point to a second domain with an A record that I can easily change to enable high availability/failover?” »

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I am using Proxifier with 911 S5 and have trouble connecting to some sites because I have 6 DNS adresses which are totally different from IP address (theu are from 2 USA states which are different from IP address state). I don’t know why is that. I’m trying to make IP address and DNS address … Read More “Multiple DNS problem with proxy” »

Hello, For a school assigment i had to make 2 dns servers in virtualbox. 1 primary dns server and 1 secondary which gets the records from the primary. Now i have the following problem: From my host machine i can ping both servers. I can nslookup to my secondary server but not into my primary … Read More “NSlookup problem” »

Question Is it best practice to have an architecture where DNS servers only resolve internal names while the proxy and mail relays resolve external domains? submitted by /u/svotso [link] [comments] Powered by WPeMatico

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Hello, What are the best practices of protecting yourself from outages? For example when big organizations go down they bring thousands of websites down. What are the most effective ways of protecting yourself from these situations? submitted by /u/OziGonin [link] [comments] Powered by WPeMatico

We had an issue where one specific domain was not resolving and a packet capture on the server it self indicated it got the request however it didnt attempt to reach the real NS servers and just responded with SERVFAIL. after performing a hard restart everything was fine.. has anyone ran into this ? any … Read More “Bind9 – Stuck not resolving specific domain” »

Hi I’m trying to set up a DKIM DNS record that specifies rsa as the key type. The public key is stored in a file in the home directory. I’ve wrote so far Default._domainkey.email.iml. IN TXT “v=DKIM1;k=rsa; t=s; p=dkim_key” I also have to make sure the records all reside in the email.iml origin and not … Read More “DNS config DKIM” »