CentOS 7.9搭建Postfix邮件服务器

一、安装DNS

1、安装DNS

[root@localhost ~]# yum -y install bind bind-utils bind-chroot

2、修改bind主配置文件

# 监听所有IP

[root@localhost ~]# sed -i -e 's/127.0.0.1/any/' -e 's/localhost/any/' /etc/named.conf

3、配置正向解析

1）配置named.rfc1912.zones

[root@localhost ~]# vim /etc/named.rfc1912.zones

# 添加以下内容

zone "yangxingzhen.net" IN {
	type master;
	file "yangxingzhen.net.zone";
	allow-update { none; };
};

zone "3.168.192.in-addr.arpa" IN {
	type master;
	file "192.168.3.arpa";
	allow-update { none; };
};