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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)

12,588 questions
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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
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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 ...
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0 answers
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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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