rbldns-data — compile the database used by rbldns
rbldns-data
rbldns-data compiles a database in source form, in the file data
, into a compiled form, in the file data.cdb
, that is used by rbldns(1).
The compiled database in data.cdb
is a Bernstein Constant Database file.
rbldns-data updates data.cdb
atomically, building a replacement in data.cdb.tmp
and atomically renaming that replacement into place when it has completely and successfully built it it and written it to disc.
So you can use it safely while rbldns(1) is running.
Trailing whitespace is removed from all lines, then all non-empty lines are recognized as follows:
#comment
Comments are ignored.
:addr
:message
A record DNS queries are to be answered with addr
.
TXT record DNS queries are to be answered with message
.
For example:
:127.0.0.2:See http://rbl.example.com/why/$
ip
The IP address ip
is on the RBL blacklist/whitelist.
ip
/n
All IP addresses that share the first n
bits of ip
are on the RBL blacklist/whitelist.
This is CIDR notation.
n
must be at least 8; and all bits of ip
past the n
th must be 0.
For example:
1.2.3.0/24
means all 1.2.3.*
addresses.