I am building a SaaS where my users can “host” their own static website To achieve this goal, I use a straightforward lambda@edge function that parses the host header and parses it to redirect to the right folder of an S3 bucket, it’s basically the same setup as this https://stackoverflow.com/questions/49812706/serving-a-multitude-of-static-sites-from-a-wildcard-domain-in-aws. For example, user.example.com/index.html will show … Read More “Vanity domain to subdomain Host header problem” »

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

Hello, I hope I’m in the right place, because I have a very specific question. I changed my mail provider (own domain) and so far everything is fine. Only MTA-STS is missing. To solve this, I just need to host a txt file at https://mta-sts.[domain]/.well-known/mta-sts.txt. The rest is done by DNS records, which I can … Read More “[Mail Security] Workaround for MTA-STS hosting?” »

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

I’ve been trying to update the authoritative DNS for a particular zone at Network Solutions, and they seem to be unable to publish the change – their Advanced DNS tool shows that they have the correct DNS servers in the tool, but MXToolbox still returns the old servers, as does dig from outside the zone. … Read More “Network Solutions and auth DNS” »

seeing occasional dns issues with some laptops at remote sites. we have 8 locations connected to main site via ipsec tunnels, basic hub and spoke network. so, at the main site, should I have reverse lookup zone for the remote subnets? I never have in the past, but here lately we seem to be having … Read More “reverse dns question on remote connected sites” »

My ISP uses a crappy DNS server that goes down at random hours of the day and unfortunately, their router changes the DNS back to it whever I attempt to change it. Would changing my computers DNS to something like 8.8.8.8 or 1.1.1.1, make a difference? Also would this introduce additional latency or slowdowns as … Read More “Would using another dns on my computer although the dns on the router is fixed to the crappy ISP dns make a difference?” »

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

I recently transferred a domain over to google sites and it won’t let me use the naked domain. Google tells me to head over to the admin console, but it’s inaccessible without a business account, which I’m unwilling to pay for just for this issue. It’s pretty annoying as the naked domain is one of … Read More “naked domain on google sites?” »

Hello, I was forced to change our ip address of outgoing emails. Since there are some servers which do not accept our emails . I would like to show what we did. Maybe we missed something or maybe it will not work like this. Our MX record is mail.ourdomain.com – ip = 22.40.x.2 We took … Read More “DNS issues with our email dns setup ?” »