![]() ![]() on the same DNS server also install a web server that processes updates, and.make sure that the parent zone (here: domain.tld) contains an NS record pointing to the server,.install a DNS server that is authoritative for a subdomain (here: ) of some domain,.There did not seem to be any off-the-shelf solution for this use case whose popularity I had underestimated.Īnyhow, nothing a bit of glue, duct tape, and Python can’t fix.īut note that I did not want to wrangle DNSSEC, so I’m conveniently leaving that part out. While browsing the web for possible existing implementations, I quickly realized that while there are tons of DNS server implementations, I actually had to build my own script to update the configuration. The configuration is maintained manually.Īlso, a dynamic DNS server obviously needs to have a stable IP address, so I had to resort to use a virtual machine somewhere in a datacenter. ![]() I already have a local DNS server running, but I used it for recursive lookups and ad-blocking purposes. I found the existing providers I had used in the past to be annoying.In order to reach my home server from the outside, I decided to build my own dynamic DNS service. How to build your own personal DynDNS serviceĬonsumer-grade internet subscriptions typically come with NAT and dynamically-assigned IP addresses. How to build your own personal DynDNS service Lars Hupel.The format of the update message is different from server to server. Set event-options event-script file dyn-dns-update.xslt Set event-options policy dyn-dns-updater then event-script dyn-dns-update.xslt Set event-options policy dyn-dns-updater attributes-match ssage matches "EVENT Add" Set event-options policy dyn-dns-updater events SYSTEM Set system services apply-macro dyndns-client1 username XXXX Set system services apply-macro dyndns-client1 type 3322 Set system services apply-macro dyndns-client1 password XXXX Set system services apply-macro dyndns-client1 hostname Script is uploaded and relevant config as well. Set system services apply-macro dyndns-client1 username link is added to the dns-0-matic and comes active Set system services apply-macro dyndns-client1 type dns-o-matic Set system services apply-macro dyndns-client1 password dynamicdns Set system services apply-macro dyndns-client1 hostname xx. Warning: named-service subsystem not running - not needed by configuration. Oh, and I'm doing this on a J2320, not an run show system services dynamic-dns client Maybe someone can post an updated version of the script that logs freedns correctly? Looks like there may be missing logic to log the actual result but I haven't dug into it yet. And if you have ppoe then see some other threads about the script to make sure you match the correct message.Īnd FYI, the script seems to only log "ERROR: Address has not changed." in the dyndns.log file. To test it, just disable/commit enable/commit your outside dhcp interface. The event-options part is just like everyone else says, and it goes in the base of the heirarchy:Īnd the freedns part that works for me looks like this, just the type and url parameters are all that's needed, and you can even use https instead of the http direct urls that freedns gives you: Script goes in /var/db/scripts/event/ like the instructions say. Just in case anyone wants to get the script working with a freedns direct update url instead of updating freedns through a dnsomatic account.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |