(jwhois.info.gz) Whois servers

 
 Whois servers
 *************
 
    When making a query, JWHOIS looks at the `whois-servers' block to
 determine which host to send the query to. This block consists of a
 number of rules. Each rule is evaluated in turn, starting with the
 first one in `whois-servers'.  A rule consists of a key and a value.
 The key can be either a special option, or a CIDR block or regular
 expression that is matched against the query that the user specified.
 
    The special option `type' takes one value, either `cidr' or `regex'.
 This defines the current blocks matching. Each block can match either
 with CIDR blocks or regular expressions, never both.
 
    If the key is a regular expression, the value can take on of two
 forms. Either a single string containing the hostname of the
 appropriate whois-server, optionally postfixed with a colon and a port
 number, or a block.
 
    If the value of the regular expression is a block, it can contain
 any number of options. The options `whois-server' and `query-format'
 are supported today.
 
    `whois-server' specifies the hostname of the whois server to send a
 query to, optionally postfixed with a colon and a port number, just as
 if the value had been a single string containing the whois server
 hostname.
 
    `query-format' rewrites queries matching this rule according to the
 contents of the options value. The special characters `$*' are replaced
 with the original query.  If a `query-format' is specified both on an
 individual rule and on a server option, the most `query-format' for the
 individual rule will be used since it is most specific.
 
    The special keyword `default' can be used to mark an entry as valid
 for all keys. The most specific rule will be used when searching for a
 host to query.
 
    Examples:
 
      whois-servers {
              type = regex;
      
      	"\\([0-9]+\\.\\)+[0-9]+" = "struct cidr-blocks";
              ".*-[A-Z]+$" = "struct handles";
      
              default = "whois.internic.net";
      };
      handles {
              type = regex;
      
              ".*-RIPE$" = "whois.ripe.net";
      };
      
      cidr {
              type = cidr;
      
              "61.0.0.0/8" {
                      whois-server = "whois.apnic.net";
                      query-format = "$* /e";
              }
              default = "whois.arin.net";
      };
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