DNS & network news

Monthly Archive: May 2018

Stub zone has wrong IP address in Master Server, and will not allow me to change.

I just started a new job and am trying to correct some DNS issues. There are 2 domains here, and each domain has a stub zone for the other domain’s DNS server. I’m not able to load the other domain’s stub zone in either DNS server. The IP address listed under Master Servers is incorrect in both domains. When I try to update the IP address to the DNS’s true IP address, it resolves with no problem and allows me to accept the changes. Then, when I go back into properties, the IP address has been changed back to the incorrect IP, and i’m unable to load the zone. Is there any risk in deleting the stub zones and re-adding them with the correct IP addresses? My end goal is to migrate everything to 1 domain using ADMT, but ADMT isn’t able to contact the domain controller on the old domain, and I believe the stub zone issues are why. I’m pretty new to DNS, so any help at all would be great.

submitted by /u/LANAdministrator
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DNS Configuration in Multiple Locations.. Safe to Delete Old?

Hi everyone, as the title says I have inherited a few domains at work that have DNS configuration in multiple places (internal DNS servers, and also through a Cloud DNS service). A whois lookup shows the domain is using the internal DNS name servers (which I want to use), so can I safely delete the DNS configuration in our old Cloud DNS service? Please note that the Cloud DNS is not a redundant/failover solution for us. It was old and we have a new cloud DNS service for failover capabilities. Thanks in advance!

submitted by /u/Iredalicious
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Active Directory DNS Delegation to external party

We are running DNS on Windows servers and I need to delegate a sub domain E.g. mail.example.com to an external company that is using the domain to send emails on our behalf. As the same DNS server host the root domain “example.com” I cannot setup conditional forwards so have cofigure domain delegtaion. The issue is this does not seem to be forwarding the DNS request to the external party.

Dose anyone know where I can start looking to see where this is getting blocked or if there is another way to do this?

Note: the domain is not the internal compute domain but our public facing domain that we replicat internally. This allows for testing internally before going live etc.


submitted by /u/stuyd
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‘www’ appearing as subdomain

I have a website that allows dynamic subdomains. Everything works as expected with the following DNS records. However, ‘www’ keeps coming through as if it were a subdomain. What I would like it to have is www.mydomain.com just go straight to mydomain.com, and not pass the www part to my application. Would I need to do this with nginx configuration, or is it better to do this with DNS records?

mydomain.com A

*.mydomain.com A

www.mydomain.com CNAME mydomain.com

I am using AWS Route 53 if it matters. Thanks for reading!

submitted by /u/eyedividedbyeye
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