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Questions tagged [ddns]

104 questions
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Does slave bind9 DNS server answer with dhcpd DDNS updates included?

When I set up ISC dhcpd with a primary and secondary as failover and I have bind9 set up as master/slave and I configure the dhcpd so that it sends the ddns updates also to the slave dns that is set up to forward the updates to the master. If the…
luzze
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IPV6: Linux-Clients does not register Hostnames via DDNS

I have a problem to get Hostnames registered in DNS (Windows AD DNS-Server) when they request a IPV6 (NA). While IPV4 gets fine i can see in syslog an "added reverse and added forward mapping" it doesnt get shown for ipv6 linux clients but Windows…
LipkeGu
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Lost remote connection to MySql through DDNS addres to local server after installing IIS Windows Server 2012 R2

I have a DDNS service that I use to connect to my local MySQL server when out of the office through my desktop app, everything was working fine until I installed IIS on the Server (Win Ser 2012 R2), I installed IIS because I also have a mobile app…
user8546041
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OpenVPN over PPPoE with DDNS

I have a router (tp-link AX5400 with vpn support) that is connected to internet over PPPoE. The server has a built in open vpn server. I linked a DDNS to the router and enabled openvpn server but cannot connect to it. Is it possible the PPPoE can be…
Branislav B.
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Statically assigned leases in ISC DHCP server are not added to DDNS

I have a gateway running both isc-dhcp-server and bind9 on Debian. Hosts that are assigned IP addresses in the DHCP range are added to the DNS zone; however, devices that I assign a static lease on the DHCP server are not added to the zone. I looked…
phaedrusschmaedrus
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Does DDNS work within an ISP subnet?

I'm trying to host a web server through a Raspberry PI 4, but found some problems in the final steps of my configuration. What I did is the following: Install Nginx. Install Node to host my site (I'm using Express). Started server on…
Ramon Orraca
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How to log verbose details about DNS update queries in bind

Is there any way to log failed DNS update queries with Bind 9 (9.16.22 on Debian) in a more verbose format? I tried all logging categories and found update messages in an update-security one. But messages are quite brief, like update forwarding…
Milo
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Bind DDNS change receiving `update failed: NOTAUTH`, how to fix that authorization issue?

I have the following zone definition: zone "madetoorder.software" { type master; file "/var/lib/bind/example.com.zone"; allow-transfer { trusted-servers; }; check-names warn; update-policy { grant local-ddns zonesub any; grant…
Alexis Wilke
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apache2 virtualhost not forwardng to correct virtual host (now a registered user)

Apache 2.4 / Ubuntu 20.4 (Linux Mint 20.3) I am testing with 2 domain names, example1.com and example2.com I have followed instructions at https://www.digitalocean.com/community/tutorials/how-to-install-the-apache-web-server-on-ubuntu-20-04. When I…
godfearer
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Difference of Dynamic DNS and Change Zone Automatically by Program

I know DDNS is translating Dynamic IP (IP which always changes in a device) to a Domain, but I don't know how the story behind it or I don't know how does it work. I'm using bind9 as DNS server, we know in bind9, there file contain record file. Then…
Muhammad Ikhwan Perwira
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ddclient with cloudflare not updating

Have a domain registered with Namecheap, using Cloudflare DNS servers. Prior this setup I was just using Namecheaps DNS until realizing I cannot use their production APIs for Traefik. Whilst I had this setup, updating with ddclient to Namecheap…
BitShift
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ISC-DHCP and BIND 9 DNS: DDNS update fails for /27 subnet

I have a problem with DDNS update with ISC-DHCP server. My /etc/dhcp/dhcpd.conf subnet section that doesn't work is: subnet 193.198.186.192 netmask 255.255.255.224 { range 193.198.186.200 193.198.186.222; # MT 20211210 option subnet-mask…
mt42
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ISC DHCP/DDNS setup: Static entries for non-dhcp clients

I have set up a local network with ISC BIND9 and DHCP service. New leases trigger the DHCP to add an A and PTR record which works perfectly. I also added lots of static host entries in the dhcpd.conf. Now I noticed that the DDNS update only works…
dom
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Self-hosted DDNS as part of a consumer product offering (potentially >>1000 sub-subdomains), how?

I'm developing a product that enables users to run a service at home which is part of a larger network. This service needs to be contacted regularly by a coordination service running in the cloud (on a VPS). The mechanism implemented for this relies…
ppenguin
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Bind9 refuses key from nsupdate

I have a Bind9 DNS server running (and working!). All the zones were managed manually. I now want to change a zone to be updated automatically. After setting things up i tried nsupdate but it fails with "refused". I have no idea why that is the…
Henri Gehrt
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