Hi, I’ve been using Quad9 for a while now, the service they provide for free is awesome! But I can’t help wonder why is it slow compared to others. I know it’s a free, non-profit service, but is that the only reason ? I live in Paris, and I know they have servers here, so … Read More “Why Quad9 slow ?” »

Can somebody cite a DNS Software tutorial for installing & configuring a DNS Service for Debian Linux that consequences with a working DNS Service, if following the tutorial instructions to the letter? ​ Usage Scenario: A single Server with Apache pages, & a single RPi Client, both configured with Static IPv4 Addresses & connected to … Read More “Working DNS for Linux” »

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

We renewed our SSL on our website. However, everybody is seeing the CERT expiry error. The resolution is to flush the dns. But everyday I get people asking why the site is down. I can’t just explain how to flush the dns to everyone… It’s been 2 weeks already! 1) Is there a way to … Read More “Is there a way to bypass device dns cache?” »

When I check for DNS leaks on safari with private relay activated I can see my real DNS address and my provider. I can also see the DNS address of the private relay. Does this mean that my ISP can monitor my internet traffic? submitted by /u/Athelstan321 [link] [comments] Powered by WPeMatico

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Hi guys, I’ve got 2 recursive DNS servers (geo-redundant – primary and secondary) with identical configurations of pdns-recursor. The primary DNS server receives packet cache hits of 71% while the secondary DNS server receives packet cache hits of 41%. Both receive similar number of queries, cache entries, hits – here’s rec_control for primary and secondary, … Read More “Packet Cache Hits percentage” »

I have recently taken over IT operations for a group of about 10 advisor firms. For some reason when this firm sends an email to a google recipient, google flags it as spam automatically. I don’t want to pull the trigger until I asked the wise ones on this forum. Their TXT record is: https://preview.redd.it/m801abpb1a491.png?width=1234&format=png&auto=webp&s=020b18fd9d1f9cf1043b4bcd9bda017188877142 … Read More “Probably a Dumb Question” »

Right now I have my primary master DNS for my zones hosted on site, with a secondary slave DNS as well. This works great but when the power goes out, my mail through Office 365 encounters some issues as a result. I’d like to have a tertiary slave DNS server offsite that would be reachable … Read More “Secondary DNS Hosting Offsite” »

Hi, I’m currently in the process of an F5 GSLB implementation. Due to the nature of the existing setup, we’re doing delegated DNS and CNAMEs on Windows Server DNS to point certain resources at the F5 resolvers. In order to accurately do topology load balancing, we’re wanting to use the ends0/client subnet feature. However, I’m … Read More “EDNS0 Issues – Windows DNS Client (Win10)/Server (2016)” »