Information about DNS and network
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” »
I was wondering is there any service which can be used to capture DNS request? Let say that service is example.com Whenever I perform nslookup example.com, I would be able to see the request in example.com I know this can be done by setting up my own server and monitor the request, I just wondering … Read More “Capture DNS request service on the Internet” »
Hey Reddit, So i had this weird idea of a webchat that only use DNS records, and with a web developer friend of mine we made this : https://chat.dediban.tech/ It’s a webchat that uses TXT record to chat with other user, it’s very simple, but work flawlessly (at least for now), if you … Read More “Me and a friend made a DNS Chat” »
Hi DNS experts, I’m a fairly experienced developer who has configured a lot WWW domain records. I have a basic understanding of MX records, but I’ve just encountered something I’m not familiar with and would sincerely appreciate your help. I’m helping a client move a simple WordPress site to a new web host. Their current … Read More “Can I copy existing DMARC and domainkey records to a new host?” »
Dunno if this subreddit is the right place. This question came about to be, from a networking assignment at college. Is it possible to tell whether the DNS response came from an actual DNS lookup or just returned from cache, by simply looking at the DNS response packet (in say Wireshark). I’m assuming the “authoritative … Read More “How to tell if a DNS record is in cache, by looking at the DNS response?” »