What people keep running into with dns
Complaints tagged dns, each raised by more than one person. One-off posts are not included.
11 recurring problems · 57 people · 9 forums we read
Raised more than once
Most people first.
- 16Why do Microsoft software updates and account errors break everything?Frequent, unannounced interface changes and forced cloud integrations turn routine admin tasks into hours of troubleshooting. Mysterious API errors and hidden account conflicts prevent you from finishing basic fixes, leaving you helpless when the underlying service itself is down.
- 9Why am I getting DMARC and SPF errors when emails deliver fine?Third-party email marketing services often fail basic SPF checks within DMARC reports because their sending IPs are not included in your domain's DNS records, even though inbox providers still manage to deliver the messages. This discrepancy leaves administrators guessing about real deliverability health and creates confusing tool warnings that hinder proper configuration.
- 8How to migrate company email from Google Workspace to Microsoft 365Migrating email between cloud office platforms requires moving all messages while managing user accounts and running both systems concurrently during the transition. Without a clear migration path, businesses risk losing access to their company email for sending and receiving, resulting in months of locked-out accounts and disrupted operations.
- 5Why are websites and APIs suddenly unreachable?Unexpected domain registry outages break DNS resolution, knocking both websites and backend APIs completely offline. This leaves system administrators unable to reach their infrastructure and cuts customers off without warning.
- 4Which hostname should be included in a mail server TLS certificate?Embedding changing variables like OS, hardware type, or location into hostnames causes confusion and technical debt as enterprise environments scale. This creates uncertainty when selecting a lasting name for an SMTP mail server's TLS certificate CN or SAN. Using mutable server names stops teams from establishing clean naming standards that hold up as hardware or server roles evolve.
- 4How to manage remote IT infrastructure without a dedicated teamManaging IT security and processes across a globally distributed team without local staff leads to overwhelming operational chaos. It prevents small businesses from establishing unified security workflows, leaving sensitive information vulnerable and leadership buried in disjointed administrative tasks.
- 3Why does our website only work with its internal IP?Websites often load correctly when accessed via an internal IP address from inside the network, but fail to load when using the domain name or DNS entry. This blocks internal users from accessing the site using its normal URL while inside the building.
- 2Why do DNS changes take up to 48 hours to propagate?Complex caching prevents DNS changes from being immediately reflected worldwide, with full propagation across all points of presence (PoPs) sometimes taking up to 48 hours. This unpredictability causes unexpected trouble and forces administrators to wait minutes or even days before tasks like ACME and DNS-01 validation can safely take place.
- 2Why did DNS break after promoting a domain controller?Promoting a backup domain controller to primary causes all DNS entries to disappear on the PDC, resulting in a complete failure of name resolution. Network traffic mysteriously fails to hit the second DNS server during this transition, leaving administrators confused.
- 2How to manage internal DNS without running a domain controllerRetaining traditional domain controllers solely for local network name resolution creates unnecessary complexity and overhead for on-prem environments. This leaves administrators struggling to manually sync records across multiple sites when hardware or legacy servers are phased out.
- 2Why does DNS stop working across the domain after an update?An update causes DNS to stop working across the entire domain and triggers an "Access Denied" error when trying to open dnsmgmt.msc. This failure prevents proper domain management and causes DNS to repeatedly stop working upon reboot, even though internet connectivity remains functional.
Comes up alongside
Topics that keep appearing on the same problems — not topics with similar names.