We have an odd one where we can’t resolve certain external records using our internal dns servers, but can resolve them when pointed to 8.8.8.8, etc. I installed a fresh BIND 9.16.1 on an Ubuntu workstation, just to eliminate any possibly out-of-date packages on our organization’s internal dns servers. Here’s what we’re seeing, when pointed … Read More “Can’t resolve some sites using our internal recursive dns servers” »

I am using DoT on android. Can I use DoH on my browser? Should I? submitted by /u/dennisbible [link] [comments] Powered by WPeMatico

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Hi guys, I am setting up an email server, nextcloud files server and DNS on a machine running Ubuntu 20.04. I’ve used iRedmail for email and it seems to be working. I need the DNS so that machines on the same network correctly access the server. I’m sorry I tried this on the networking forum … Read More “Bind9 DNS responds only to localhost requests.” »

Hello, I got a home server running a reverse proxy with a Letsencrypt wildcard cert through cloudflare. I am serving local instances with a.domain.com (have a Adguardhome redirecting the local names. The DNS in cloudflare I have b.domain.com as public reachable. Is it an attack vector that a person takes my IP, fiddles around with … Read More “Reverse proxy question” »

We have a domain on GoDaddy and planning on routing the traffic to it through Route 53 and later will be creating subdomains using Route 53 too. So I wanted to know what are the pros and cons and also the security concerns for both scenarios of using GoDaddy for only the domain and Route … Read More “Should you use AWS Route 53 for both your domains and subdomains or use it only for one of them?” »

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Basically, we have our main site, and have set up a shop which I have added a CNAME record for in cloudfare pointing towards teespring. So Name = shop. Content = sites.teespring.com Whenever I try to load shop.domain.com it says “not found – request ID: bunch of numbers” For some reason I think it might … Read More “Can’t Get Subdomain to Work (Cloudfare)” »

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How is apps like Gmass and sendpulse able to send bulk emails from gmail when gmail itself has a limit of 2000/500 emails per day? I am so pissed by the limits set by these email providers, I have an app that can send emails but it is through SMTP but I see other platforms … Read More “How are thirdparty apps able to send bulk emails from gmail when there is a limit” »