Questions tagged [ddns]
100 questions
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Unable to add forward map SERVFAIL/REFUSED DDNS
I am using bind9 on a primary dns server with two secondary dns servers in a master/slave relationship. I am attempting to implement DDNS but seem to be running into a problem when it comes to adding a forward map, I get the error
Unable to add…
lb-99
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4 answers
DDNS entry being replaced to the actual IP on an iptables chain
I have a rented dedicated server that I host certain services on.
For security reasons I made a rule chain that will check against listed DDNS addresses and only connect to the connections that match. It seemed to be better than block or accept by…
Saifis
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Purchasing a domain name and pointing to a dynamic IP
I designed a small hardware device that will need to periodically check for updates over wifi. I am looking into getting a proper domain name, as currently I am using one of the free ones from noip that requires confirming every 30 days.
The free…
Matthew Goulart
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Access home network machine via hosted subdomain
I would like to be able to use a subdomain of my externally hosted website to access a particular port of a machine on my home network. For example, say my domain is example.com, I would like to be able to use homebox.example.com to talk to port…
spookypeanut
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Public dynamic IP address
I have bought a domain from "domain.com", but I have problem updating my newly given IP address from ISP every 14h. How can I use DynDNS service to work with different IPs. DynDNS need to update the ips on "domain.com".
Eding/Update
"domain.com"…
IvanAK
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2 answers
Multiple subnets on isc-dhcp-server using ddns with bind9
On my network I have two subnets:
10.100.1.0/24 -> Wired/wireless
10.100.7.0/24 -> VPN
Both subnets are served by isc-dhcp-server running on a Debian VM. This same VM runs bind9 for my DNS. ISC-DHCP-SERVER is configured to use DDNS and update…
some_guy_long_gone
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D'DNS as Default Gateway
I need a help! I have router A on 1st location and I have router B on 2nd location - they are miles away !! Can I set DDNS domain name of router A -"server" as default gateway for router B? YES or NO. How to do it; if you can't put DDNS as letters…
Nenad
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1 answer
Multiple Physical (and Virtual) servers (mail, web, etc.) on single link. Can I use DDNS to use top level domains to each box?
This all started last year when I switched to a LISP based solution for my old "C" address block without the expense of T1 lines. I have a cable link and a dsl link into my Cisco 2800 that then processes LISP and feeds the LAN. I have/had at least…
Rick
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How to programmatically determine dynamic IP from behind a subnet
Sorry for the noob question, but I'm trying to hack together an ad hoc dynamic dns to reliably connect two machines in different geographic regions. My issue is every command I try (ifconfig, iwconfig, netstat, etc.) gives me the IP address from…
syzygy
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I have no access to router and portforward and i need to run a webserver
I got some PCs in some different locations with different ISPs and networks with dynamic ip addresses and I have a dynamic dns server that can records new IPs. but there is a problem.
ISPs blocked all user to buy static ip and do portforward and…
Reza Azimi
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