From fa84bc4b3513a7ae42ea30346ac41ac6ed6f16db Mon Sep 17 00:00:00 2001 From: Dibins <6020646+Dibins@users.noreply.github.com> Date: Mon, 2 Oct 2023 16:53:29 -0500 Subject: Second update dns.rst Based on the discussion here: https://forum.vyos.io/t/dynamic-dns-not-wollowing-web-options/12309 it seems necessary to note that setting the web-options on a given interface is not sufficient for determining the IP address when behind NAT. I've added some additional detail, which I think will make that more clear, as well as listed the commands as required to set up DDNS behind NAT. Further I updated the section on RFC2136 to accurately show address instead of interface --- docs/configuration/service/dns.rst | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/docs/configuration/service/dns.rst b/docs/configuration/service/dns.rst index adc58d8e..2caeb22d 100644 --- a/docs/configuration/service/dns.rst +++ b/docs/configuration/service/dns.rst @@ -216,36 +216,36 @@ Configuration :rfc:`2136` Based ----------------- -.. cfgcmd:: set service dns dynamic interface rfc2136 +.. cfgcmd:: set service dns dynamic address rfc2136 Create new :rfc:`2136` DNS update configuration which will update the IP address assigned to `` on the service you configured under ``. -.. cfgcmd:: set service dns dynamic interface rfc2136 +.. cfgcmd:: set service dns dynamic address rfc2136 key File identified by `` containing the secret RNDC key shared with remote DNS server. -.. cfgcmd:: set service dns dynamic interface rfc2136 +.. cfgcmd:: set service dns dynamic address rfc2136 server Configure the DNS `` IP/FQDN used when updating this dynamic assignment. -.. cfgcmd:: set service dns dynamic interface rfc2136 +.. cfgcmd:: set service dns dynamic address rfc2136 zone Configure DNS `` to be updated. -.. cfgcmd:: set service dns dynamic interface rfc2136 +.. cfgcmd:: set service dns dynamic address rfc2136 record Configure DNS `` which should be updated. This can be set multiple times. -.. cfgcmd:: set service dns dynamic interface rfc2136 +.. cfgcmd:: set service dns dynamic address rfc2136 ttl Configure optional TTL value on the given resource record. This defaults to @@ -381,15 +381,21 @@ By default, ddclient_ will update a dynamic dns record using the IP address directly attached to the interface. If your VyOS instance is behind NAT, your record will be updated to point to your internal IP. -ddclient_ has another way to determine the WAN IP address. This is controlled -by: +Above, command syntax isn noted to configure dynamic dns on a specific interface. +It is possible to overlook the additional address option, web, when completeing +those commands. ddclient_ has another way to determine the WAN IP address, using +a web-based url to determine the external IP. Each of the commands above will +need to be modified to use 'web' as the 'interface' specified if this functionality +is to be utilized. -.. cfgcmd:: set service dns dynamic address web-options url +This functionality is controlled by adding the following configuration: + +.. cfgcmd:: set service dns dynamic address web web-options url Use configured `` to determine your IP address. ddclient_ will load `` and tries to extract your IP address from the response. -.. cfgcmd:: set service dns dynamic address web-options skip +.. cfgcmd:: set service dns dynamic address web web-options skip ddclient_ will skip any address located before the string set in ``. -- cgit v1.2.3