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Often SpamAssassin users will find that their system is performing many DNS (Domain Name System) lookups. There are many NetworkTests in the suite of tests. The network tests significantly enhance the ability of SpamAssassin to correctly catagorize categorize messages. One of the main network tests is to look up domain names in the DnsBlocklists.
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Red Hat and Fedora Core GNU/Linux
On Red Hat and Fedora Core systems the BIND software is in the "bind" rpm package. The "caching-nameserver" rpm package contains a caching nameserver configuration suitable for Internet use. Locate those packages from your vendor and install them. The http://rpmfind.net rpm search site is very useful for locating rpms for your system.
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Installing dnsmasq as a Caching Nameserver
dnsmasq is a small DNS server (also includes a lightweight DHCP server).
If you further guides to the commands required to install this on a typical system, please edit this page and fill out this section.
dnsmasq Resources
- How to configure dnsmasq as a caching nameserver (George Notaras, Sep 18, 2010)
Gentoo Linux
On Gentoo the dnsmasq package is called "net-dns/dnsmasq".
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