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Q&A

Welcome to Software Development on Codidact!

Will you help us build our independent community of developers helping developers? We're small and trying to grow. We welcome questions about all aspects of software development, from design to code to QA and more. Got questions? Got answers? Got code you'd like someone to review? Please join us.

Posts tagged dns

Use for programming questions related to interactions with the Domain Name System (DNS).

This tag doesn't have a detailed wiki yet.

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Q&A Is it possible to query all known domains from a DNS server?

Normally you ask a DNS server to resolve a domain like example.org to the corresponding IP address. The server either knows the answer right off the bat (cached or authoritative), or where it might...

0 answers  ·  posted 1mo ago by Iizuki‭  ·  last activity 1mo ago by Mithical‭

Question dns
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Q&A Why utilize an FQDN in the stead of a domain (and/or TLD), relative to the root domain?

Until recently, I'd yet to come across a situation in which I'd had any reason to qualify a DNS namespace further than its TLD. Then, I authored softwareengineering.stackexchange.com/revisions/456...

0 answers  ·  posted 5mo ago by RokeJulianLockhart ‭

Question dns
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Q&A I don't want to setup DKIM, SPF and to do SMTP authentication ; an hosting-provider-email-box solves this but what if I want a domain-registrar-email-box instead?

On a shared hosting (CentOS-Bash) I have a website with a backend (PHP) - frontend CMS-agnostic contact form. I need to transfer emails sent via this contact form directly to an email address (I d...

0 answers  ·  posted 4y ago by deleted user  ·  edited 4y ago by deleted user

Question security dns email domain-registrar spam-prevention
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Q&A dig -6 works but dig -4 does not

I can't get a response from IPv4 dig on my server but I can get one from IPv6 dig. See the below output: $ dig +short myip.opendns.com a @resolver1.opendns.com # Doesn't return anything, this used ...

1 answer  ·  posted 4y ago by cobertos‭  ·  last activity 4y ago by Canina‭

Question linux ipv4 ipv6 dns