Information about DNS and network
I was reading this nice document giving advice about managing SPF records, and one warning I did not understand is as follows: The exists directive is a potential security risk. https://www.m3aawg.org/sites/default/files/m3aawg_managing-spf_records-2017-08.pdf Anyone can guess what they might be referring to? Thanks a lot! submitted by /u/mlrhazi [link] [comments] Powered by WPeMatico
Hello, I’m a coder and would love to know how services like DNSFlex or Smart DNS services in general work. The way this works is to subscribe to that service and utilise their DNS servers instead of your own. That is enough for the streaming services to believe that you are a residential customer in … Read More “How does DNSFlex or Smart DNS services work?” »
It has been a few hours since all our DNS records stopped working and our whole system is down. I manually checked our servers with their public IPs, and they are working fine but none of the Porkbun records are pointing to our servers. Is anyone facing the same? submitted by /u/RecursiveEngineer [link] [comments] Powered … Read More “Porkbun down?” »
Hi guys! I’ve been playing around with Unbound as local resolver/cache for my network, and it has been working very well. I would like to enable DoT towards the forwarders (Quad9, in my case), but have run into problems with getting it to work – and I am fairly sure I am failing at the … Read More “Unbound and DNS-over-TLS (DoT) – How to setup the SSL certs?” »
I’m in a situation where I have a home lab that I access through using different domains if I’m connecting via a VPN or just the at-home lan. For example at home I would browse to “nextcloud.lan” and from the VPN I’ll use “nextcloud.vpn”. This is because the “.lan” is on a 192.x.x.x subnet and … Read More “Can PowerDNS filter A records based on client subnet?” »
I had another post but figured this was a new question… I had trouble with Opendns not blocking graphic images in google’s search results. Our Netgear router has parental controls which I also just turned on. They have the option of forcing google’s search to safe search mode. It also has filters etc. The Netgear … Read More “Using Opendns with router controls” »
Hi, what do you suggest for privacy, speed of resolution, quality and reliability? submitted by /u/ProgettoPrisma [link] [comments] Powered by WPeMatico
I have blocked porn sites and other things like proxy, anonymizer etc using Opendns, however I realized that a ton of images are available at google.com in image results etc. I can block google which puts an end to that. Bing seems to not put out porn images. Problem is our kids use google drive … Read More “Trying to block pornographic images in google image search with Opendns but kids need to access google drive for school. Please help.” »
I previously had website 123.com hosted in bluehost with its DNS ( A record, MX record, DMARC e.t.c ) , I moved the website to AWS and only pointed the A record to AWS IP address, now i have a brand new modern site xyz.com I need to 301 redirect single contact page from abc.com … Read More “Bluehost page redirects are not working” »
So we’ve been having issues with our mail server hitting Google users. Digging into the headers, I can see the received from has legis.iowa.gov, but also (legis.state.ia.us IP). I know we had a legacy domain that they used a decade ago, but I never figured we were advertising it. I dig around with MXTools, and … Read More “Question regarding multiple SPF records.” »