If I only need my domain for email, do I still need A/CNAME records? Or is MX only sufficient? Current setup is I have MX record pointing to various google domains (I use gmail), but I have a couple of A records from a long time ago, think I can just delete but wanted to … Read More “Do I need A/CNAME records for email?” »

I didn’t know this was a thing, but when I tried that Yandex Family DNS which blocks porn sites, I thought it will only give a different IP to be resolved for that domain, so that the browser cannot access the site, but actually Google Search results are also now excluding those sites from the … Read More “Google results are changing when DNS is changed.” »

submitted by /u/jedisct1 [link] [comments] Powered by WPeMatico

When logging into one of my workstations on a LAN system (offline). My user account logs in with a temporary profile and I don’t have access to the network share drive. submitted by /u/Budget-Meaning1721 [link] [comments] Powered by WPeMatico

submitted by /u/UnknownFluffi [link] [comments] Powered by WPeMatico

When I usually use ipleak there would only be 2 dns servers detected but it seems like it goes up to 8 and even 20, with it connecting to an entirely different state… what is happening? submitted by /u/NationalArmy2696 [link] [comments] Powered by WPeMatico

Hi everyone! So, my client has an issue where their emails are rebounded back to them after attempting to send an email to multiple user (CC). So far what I have done is on an external DNS server, I editted SPF records to include the line “include:_spf.google.com ~all” in SPF record configuration in external DNS … Read More “Fix Error 550-5.7.26 issue for my Microsoft Exchange 2016” »

I am an experienced computer user, but completely ignorant about DNS. I have a domain name, with a little webserver hosted by AWS, and email at that domain name served by gmail. I have no recollection of how I set all this up. I need to do a couple of things: 1) I see that … Read More “Need help with some basic DNS tasks” »

Hi! UPDATE: I decreased `cache-max-ttl` to have 600 seconds. Seems like it resolves issue. Observing… Recently I configured Unbound DNS as caching resolver.It uses root hints + DNSSEC validation. I observe strange behavior: time to time I have problems with loading pages or intialization of applications – such as Reddit or Youtube, etc. It just … Read More “Strange behavior of Unbound caching DNS” »

Situation: I have few DNS Servers with real IP and single interface (Windows Server 2022) Problem: since 25 days I receive 20-30 000 sessions per second to my DNS servers to resolve all imaginable and unimaginable dns query from million’s of IP, there is a heavy DNS Attack Solution: after I read everything on internet … Read More “DNS Attack – DNS Policy problems with disabling forward for External Clients” »