لطفا منتظر باشید ...
DNS Server
Options for Linux
The first choice you must make when setting
up a DNS server is which DNS server package to
use. There are several options in Linux with varying capabilities. The most
common packages include the following: BIND The Berkeley Internet Name Domain (BIND)
is the most popular DNS server in Linux, and it's the one upon which this
chapter focuses. BIND ships with all major Linux distributions, and its Web
site is http://www.isc.org/products/BIND/ . The current version as I write is 9.2.0, but in early 2002, many
Linux distributions still ship with the older 8.2.x
versions. The still older 4.9.x versions used a
different configuration file format. djbdns D. J. Bernstein's DNS server is an alternative to BIND that's
popular among some users. Originally known as tinydns , djbdns is
designed to be smaller, more efficient, and more secure than BIND. It's not the
standard DNS server for any distribution discussed in this book, but you can
replace BIND with djbdns if you like. You can read more about djbdns at its Web page,
local network as a proxy for a remote DNS server. It also supports limited
local domain name resolution features, but it doesn't support the full range of
features implemented by BIND or djbdns . You can read more at
lookups on a local network. Unlike pdnsd , dnscache provides no support for locally defined hosts, aside from localhost (127.0.0.1). The dnscache server is available from
use BIND, because it ships with all major Linux distributions and is the most
common DNS server. The security conscious sometimes pick djbdns because
of its greater emphasis on security. Proxy DNS servers are often useful on
small networks for local caching or even local name resolution, but they aren't
good choices if you want to host your own domain and provide name resolution
services to outside systems. The rest of this chapter focuses upon BIND, but
some of the administrative tasks will be similar if you use djbdns .
