Domain Name System (DNS) related services Dynamic DNS 990 Dynamic DNS configuration txt Dynamic DNS service name #include Dynamic DNS service name must be alphanumeric and can contain hyphens and underscores #include ddclient protocol used for Dynamic DNS service Obtain IP address to send Dynamic DNS update for #include HTTP(S) web request to use #include Pattern to skip from the HTTP(S) respose txt Pattern to skip from the HTTP(S) respose to extract the external IP address IP address version to use _ipv4 Use only IPv4 address _ipv6 Use only IPv6 address both Use both IPv4 and IPv6 address ipv4 ipv6 both (ipv[46]|both) IP Version must be literal 'ipv4', 'ipv6' or 'both' ipv4 Hostname to register with Dynamic DNS service #include (\@|\*)[-.A-Za-z0-9]* Host-name must be alphanumeric, can contain hyphens and can be prefixed with '@' or '*' Remote Dynamic DNS server to send updates to ipv4 IPv4 address of the remote server ipv6 IPv6 address of the remote server hostname Fully qualified domain name of the remote server Remote server must be IP address or fully qualified domain name DNS zone to be updated txt Name of DNS zone #include #include File containing TSIG authentication key for RFC2136 nsupdate on remote DNS server filename File in /config/auth directory #include Time in seconds to wait between update attempts u32:60-86400 Time in seconds Wait time must be between 60 and 86400 seconds Time in seconds for the hostname to be marked expired in cache u32:300-2160000 Time in seconds Expiry time must be between 300 and 2160000 seconds Interval in seconds to wait between Dynamic DNS updates u32:60-3600 Time in seconds Interval must be between 60 and 3600 seconds 300 #include