Soa updating zone files

The input files are typically in standard DNS master file format.

They are passed through BIND's named-compilezone program to convert them to canonical form, so they may also be in BIND's "raw" format and may have Compare records case-insensitively.

One method to accomplish your goal, might be to enable dynamic updates for all your zones, with acls limiting access from the local machine only.

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I've a BIND9 server with a lot of zones and I need to increase the serial number of the zone files by one.

Some zones are using the YYYYMMDDXX format but other zones just increase it by one, as they are dynamic DNS zones, so updating all by one would do the job for me. I tried with Since the bind zone format is pretty flexible any simple text manipulation tools might be a bit dangerous.

A zone file consists of directives and resource records. ( 2001062501 ; serial 21600 ; refresh after 6 hours 3600 ; retry after 1 hour 604800 ; expire after 1 week 86400 ) ; minimum TTL of 1 day ; ; IN NS dns1. dns1 IN A IN AAAA aaaa:bbbb::1 dns2 IN A IN AAAA aaaa:bbbb::2 ; ; @ IN MX 10 mail. mail IN A IN AAAA aaaa:bbbb::5 mail2 IN A IN AAAA aaaa:bbbb::6 ; ; ; This sample zone file illustrates sharing the same IP addresses ; for multiple services: ; services IN A IN AAAA aaaa:bbbb::10 IN A IN AAAA aaaa:bbbb::11 ftp IN CNAME services. ; ; A reverse name resolution zone file is used to translate an IP address in a particular namespace into an fully qualified domain name (FQDN). ( 2001062501 ; serial 21600 ; refresh after 6 hours 3600 ; retry after 1 hour 604800 ; expire after 1 week 86400 ) ; minimum TTL of 1 day ; @ IN NS dns1.

Directives tell the nameserver to perform tasks or apply special settings to the zone, resource records define the parameters of the zone and assign identities to individual hosts. It looks very similar to a standard zone file, except that the $ORIGIN 1.0.10.

All editing must be done on the authoritative nameservers for the given domain. If you are uncomfortable with the command line, you can also update your A records using Web Host Manager.

NOTE: Before updating any DNS record, you will want to lower the Time to Live (TTL) values for that zone file. If you have any questions or are not comfortable making these changes yourself, please feel free to contact Heroic Support.

Also, depending on exactly how you're implementing whatever all you're doing, it may make more sense to use UNIX epoch time as the serial instead of incrementing by one each time.

You could create a script, say that would overwrite the file and use the current unix timestamp in the serial.

Can be helpful if the nsupdate target server does not preserve the case of domain names.

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