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Questions tagged [domain-name-system]

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The Domain Name System (DNS), is a hierarchical, distributed database that translates names to numeric addresses. Questions involving publicly accessible domains should include the real, Fully Qualified Domain Name (FQDN)

69 questions from the last 365 days
Newest Active Bountied Unanswered
Score of -1
0 answers
25 views

I'm dealing with a DNS issue on Cloudflare for a production domain and I'm trying to understand the root cause before I finish rebuilding everything from scratch. Timeline After an account password ...
Score of 1
2 answers
208 views

I'm having a problem with my SPF. Looking in mxtoolbox.com for my SPF record, I get the error Too many included lookups. I should have to remove some of my 'include' options or try to flatten some of ...
Score of 0
1 answer
92 views

We have an AD-integrated DNS environment with ~80 reverse lookup zones built up over years, all created independently with no parent zone. The 10.in-addr.arpa parent does not exist; we just have ...
Score of 0
0 answers
34 views

I am trying out CoreDNS in a Docker Compose environment: The Docker Compose file consists of two images, CoreDNS as the DNS server and Ubuntu as client to make use of the DNS server. I have provided ...
Score of -1
0 answers
38 views

No mail has arrived in my email inbox since 5/27. When an email was sent to me, the sender received this message: DNS Error: DNS type 'mx' lookup of sarai.co.il responded with code SERVFAIL
Score of 0
2 answers
161 views

I am troubleshooting a Windows domain logon delay affecting client workstations. Symptoms About 10–15 second delay before the login screen appears NETLOGON Event ID 5719 during startup GroupPolicy ...
Score of 0
0 answers
53 views

I am having an issue with a .de domain genieglobal-workforce.de registered through GoDaddy. My nameservers are hosted on DigitalOcean. The domain appears completely valid and active in the registry's ...
Score of 1
0 answers
58 views

I am a small business owner with a relatively new .com domain, and I use Google Workspace for my mail. I have a problem with emails from me going into recipient spam folders, however delivery to Gmail ...
Score of 2
1 answer
229 views

(Note: I've edited this to replace specific domain names and IP addresses with unroutable/unresolvable examples.) Context Obviously reality is subject to change, but as I write this, the authoritative ...
Score of 0
0 answers
57 views

It has now been approximately 48 days since external internet access in Iran has been shutdowned. A primary technical consequence is DNS fragmentation: Global resolvers cannot reach authoritative DNS ...
Score of 1
0 answers
161 views

I am trying to update resource records on a primary DNS bind9 server from a client using nsupdate. There is no issue when using the default 53 port. An issue appears when using DoT (DNS over TLS) over ...
Score of 0
1 answer
141 views

I'm currently working as a collaborator in my university's network services department. Our infrastructure aims to follow Uptime Institute Tier II standards, so we are focusing heavily on redundancy ...
Score of 0
1 answer
143 views

I want to bang my head to the wall In my domain DNS panel I set an 1. A Record tns.example.com -> 1.2.3.4 (My VPS IP) 2. NS Record t.example.com -> tns.example.com The "A Record&...
Score of 1
2 answers
215 views

I need to change the timestamp format of the logs in C:\Windows\System32\dns\dns.log to include the complete year in the logs timestamp. Since the time stamp format in this log file is based on Region ...
Score of 0
1 answer
410 views

I use multiple IP addresses to send email. Both have a PTR record. One IP address is rejected by Gmail due to problems with the DNS PTR record. How can I solve this problem? relay=gmail-smtp-in.l....

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