Last revised: September 26, 2010

DNS Module

This module provides asynchronous dns support. This will avoid long
periods where the bot just hangs there, waiting for a hostname to
resolve, which will often let it timeout on all other connections.

This module requires: none

Put this line into your Eggdrop configuration file to load the dns
module:

    loadmodule dns

There are also some variables you can set in your config file:

  set dns-servers "8.8.8.8 8.8.4.4"

      In case your bot has trouble finding dns servers or you want to
      use specific ones, you can set them here. The value is a list of
      dns servers. The relative order doesn't matter. You can also
      specify a non-standard port. The default is to use the system
      specified dns servers. You don't need to modify this normally.

  set dns-cache 86400

      Specify how long should the DNS module cache replies at maximum.
      The value must be in seconds. Note that it will respect the TTL of
      the reply and this is just an upper boundary.

  set dns-negcache 600

      Specify how long should the DNS module cache negative replies
      (NXDOMAIN, DNS Lookup failed). The value must be in seconds.

  set dns-maxsends 4

      How many times should the DNS module resend the query for a given
      domain if it receives no reply?

  set dns-retrydelay 3

      Specify how long should the DNS module wait for a reply before
      resending the query. The value must be in seconds.

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