client 的配置

[client]#

nmcli connection modify ens33 ipv4.addresses 192.168.1.8/24 ipv4.dns 192.168.2.200 ipv4.gateway 192.168.1.9
nmcli connection reload
nmcli connection up ens33

路由器的配置

[route]#

echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
sysctl -p
iptables -t nat -A POSTROUTING -s 192.168.1.0/24 ! -d 192.168.1.0/24 -j SNAT --to-source 192.168.2.254

powerdns 的搭建

1. 实现web界面管理dns
2. dns中的信息保存在数据库中

安装包

[powerDNS]#

yum -y --enablerepo=aliyun  --enablerepo=aliyun_epel install httpd php php-devel php-gd php-mcrypt php-imap php-ldap php-mysql php-odbc php-pear php-xml php-xmlrpc php-mbstring php-mcrypt php-mhash gettext php-mysql pdns pdns-backend-mysql mariadb-server

配置文件

[powerDNS]#

vim /etc/pdns/pdns.conf
launch=gmysql
gmysql-host=localhost
gmysql-port=3306
gmysql-dbname=powerdns
gmysql-user=powerdns
gmysql-password=centos

创建powerdns数据库中的表

[powerDNS]#

mysql -e "create database powerdns;grant all on powerdns.* to powerdns@localhost identified by 'centos';"
mysql
use powerdns;
CREATE TABLE domains (
  id                    INT AUTO_INCREMENT,
  name                  VARCHAR(255) NOT NULL,
  master                VARCHAR(128) DEFAULT NULL,
  last_check            INT DEFAULT NULL,
  type                  VARCHAR(6) NOT NULL,
  notified_serial       INT DEFAULT NULL,
  account               VARCHAR(40) DEFAULT NULL,
  PRIMARY KEY (id)
) Engine=InnoDB;

CREATE UNIQUE INDEX name_index ON domains(name);


CREATE TABLE records (
  id                    BIGINT AUTO_INCREMENT,
  domain_id             INT DEFAULT NULL,
  name                  VARCHAR(255) DEFAULT NULL,
  type                  VARCHAR(10) DEFAULT NULL,
  content               VARCHAR(64000) DEFAULT NULL,
  ttl                   INT DEFAULT NULL,
  prio                  INT DEFAULT NULL,
  change_date           INT DEFAULT NULL,
  disabled              TINYINT(1) DEFAULT 0,
  ordername             VARCHAR(255) BINARY DEFAULT NULL,
  auth                  TINYINT(1) DEFAULT 1,
  PRIMARY KEY (id)
) Engine=InnoDB;

CREATE INDEX nametype_index ON records(name,type);
CREATE INDEX domain_id ON records(domain_id);
CREATE INDEX recordorder ON records (domain_id, ordername);


CREATE TABLE supermasters (
  ip                    VARCHAR(64) NOT NULL,
  nameserver            VARCHAR(255) NOT NULL,
  account               VARCHAR(40) NOT NULL,
  PRIMARY KEY (ip, nameserver)
) Engine=InnoDB;


CREATE TABLE comments (
  id                    INT AUTO_INCREMENT,
  domain_id             INT NOT NULL,