关于在Linux下如何搭建DNS服务器（linux如何配dns）一篇读懂

文章摘要

这篇文章介绍了名为`named.conf`的配置文件，它是由Red Hat的bind包提供的，用于配置ISC BIND named(8) DNS服务器作为缓存仅的DNS resolver，仅在本地主机上工作。文章详细列出了配置文件中的主要选项，包括`listen-on`、`allow-query`、`recursion`等，以及相关的配置项，如`DNSsec`验证设置。此外，文章还提到了配置文件的路径、日志设置（如`channel`和`file`）以及DNS服务器的配置（如包括文件和配置项）。核心内容是通过`named.conf`实现本地DNS缓存服务器的配置和管理。

//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
// See the BIND Administrator’s Reference Manual (ARM) for details about the
// configuration located in /usr/share/doc/bind-{version}/Bv9ARM.html

options {
listen-on port 53 { any; };
# listen-on port 53 { 127.0.0.1; };
listen-on-v6 port 53 { ::1; };
directory “/var/named”;
dump-file “/var/named/data/cache_dump.db”;
statistics-file “/var/named/data/named_stats.txt”;
memstatistics-file “/var/named/data/named_mem_stats.txt”;
recursing-file “/var/named/data/named.recursing”;
secroots-file “/var/named/data/named.secroots”;
allow-query { any; };
# allow-query { localhost; };

recursion yes;

dnssec-enable yes;
dnssec-validation yes;

bindkeys-file “/etc/named.root.key”;

managed-keys-directory “/var/named/dynamic”;

pid-file “/run/named/named.pid”;
session-keyfile “/run/named/session.key”;
};

logging {
channel default_debug {
file “data/named.run”;
severity dynamic;
};
};

zone “.” IN {
type hint;
file “named.ca”;
};

include “/etc/named.rfc1912.zones”;
include “/etc/named.root.key”;