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P5-net-dnsbl-multidaemon
Jul 20, 2023
Perl module for multi DNSBL prioritization
NetDNSBLMultiDaemon is the Perl module that implements the multi_dnsbl daemon.
multi_dnsbl is a DNS emulator daemon that increases the efficacy of DNSBL look-ups in a mail system. multi_dnsbl may be used as a stand-alone DNSBL or as a plug-in for a standard BIND 9 installation. multi_dnsbl shares a common configuration file format with the MailSpamCannibal sc_BLcheck.pl script so that DNSBL’s can be maintained in a common configuration file for an entire mail installation.
Because DNSBL usefulness is dependent on the nature and source of spam sent to a specific site and because sometimes DNSBL’s may provide intermittant service, multi_dnsbl interrogates them sorted in the order of greatest successful hits. DNSBL’s that do not respond within the configured timeout period are not interrogated at all after 6 consecutive failures, and thereafter will be retried not more often than once every hour until they come back online. This eliminates the need to place DNSBL’s in a particular order in your MTA’s config file or periodically monitor the DNSBL statistics and/or update the MTA config file.
Checkout these related ports:
- Zonenotify - DNS notify sender written in C
- Zonecheck - Perform consistency checks on DNS zones
- Zkt -
- Yandex-ddns - Use Yandex DNS as a dynamic DNS provider
- Yadifa - Authoritative nameserver with DNSSEC capabilities
- Wrapsrv - DNS SRV record command line wrapper
- Whoseip - Get information about IP addresses country code and network
- Wdns - Low-level DNS library
- Walker - Recover zone file information from servers that use DNSSEC
- Void-zones-tools - Prepare a list of void zones that can be readily fed into Unbound
- Vizone - Updates the serial number in one or more zonefiles
- Vhostcname - Synchronize DNS with server names and aliases from Apache vhost
- Utdns - Proxy UDP/DNS to TCP/DNS
- Updatedd - Dynamic DNS Update Client supporting multiple services
- Unbound - Validating, recursive, and caching DNS resolver