Hey friends, I am worried about messing things up so wanted your input. I have email (O365) and domain purchased through GoDaddy. I signed up for CloudFlare and they need me to replace GoDaddys nameservers with theirs. To ensure that email does not stop flowing correctly, do I just need to make sure MX, TXT, … Read More “Want to set nameservers to CloudFlare, but worried about messing email up” »

Background: For the sake of a simple description, say I have two systems on my home network: – serverSystem – clientSystem ​ I have a domain that I use to reach my home network while away. Assume I use mysystem.mydomain.com to reach my home network (I have ssh & other services configured with the proper … Read More “Is this a DNS issue? Please help!” »

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For example if I run dig google.com +trace google.com. 172800 IN NS ns2.google.com. google.com. 172800 IN NS ns1.google.com. google.com. 172800 IN NS ns3.google.com. google.com. 172800 IN NS ns4.google.com. ;; Received 836 bytes from 192.41.162.30#53(l.gtld-servers.net) in 24 ms I can see that the .com TLD zone doesnt have an A record for google.com, so it must … Read More “Is this how you distinguish zones when querying name servers?” »

I have 2 internal networks, my default network (192.168.5.0/24), and a limited network that enables access to some servers when connected to my vpn (192.168.10.0/24). The servers that are accessible via a vpn connection are always connected to bother networks, and the last octet of their IP address is the same for both the ‘5’ … Read More “Is wildcard split-horizon routing possible?” »

Have been using this service for almost a year now. Everything has been working fine except for this week. Some urls aren’t showing up in the “total unique domains” area on some devices. I’ve deleted and re-entered the dns addresses and still nothing. It’s capturing domains on other devices except for an iPad Air. Any … Read More “OpenDNS Home VIP help…” »

I deployed a dns server under windows server 2019, the server has two network interfaces, one.interface for management used only by the it team for remote access and a second interface for dns requests and clients requests. Now both NICs respond to dns queries, I want the NIC that responds to dns queries and requests. … Read More “disble card network for dns request” »

Forgive my ignorance as I am not sure if this is something that should be done by the end devices’ resolver or powerDNS. Is it possible for powerDNS to attempt to guess the IP of a device when it is only given the hostname? I’m aware that in typically windows/AD setups this is the default … Read More “PowerDNS name resolution for hostnames without suffix” »

At some point today I began having issues with bad Certs responses in my browser. I didn’t think much about it as it was intermittent. Within the last hour almost all traffic was being redirected and during the process I noticed that OpenDNS was the service being used. I then disabled OpenDNS as an option … Read More “Is anyone else having issues with OpenDNS providing bad responses/redirecting traffic?” »

Anyone had any luck actually configuring a subnetted reverse lookup zone. We’ve been trying to follow this guide but with zero success. https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/configure-subnetted-reverse-lookup-zone As a test we’ve taken a more granular IP range to not impact existing systems. Details – CIDR block: 172.24.172.0/23 Subnet mask: 255.255.254.0 Server IP: 172.24.172.11 Parent RLS – Zone: 172.24.172.in-addr.arpa Delegate: … Read More “Subnetted Reverse Lookup Zone” »