实现 PowerDNS 应用部署
PowerDNS官网：https://www.powerdns.com/
PowerDNS文档：https://doc.powerdns.com/
Poweradmin官网：http://www.poweradmin.org/
范例：CentOS 8 利用RPM包部署PowerDNS(目前20200311，不支持powerdns，缺少相关php包)
[root@centos8 ~]#yum install -y pdns pdns-backend-mysql mariadb-server
[root@centos8 ~]#systemctl start mariadb
[root@centos8 ~]#mysql < pdns.sql
[root@centos8 ~]#vim /etc/pdns/pdns.conf
launch=gmysql
gmysql-host=localhost
gmysql-port=3306
gmysql-dbname=powerdns
gmysql-user=powerdns
gmysql-password=magedu
[root@centos8 ~]#grep -Ev "^#|^$" /etc/pdns/pdns.conf
launch=gmysql #修改此行
gmysql-host=localhost #以下行是增加
gmysql-port=3306
gmysql-dbname=powerdns
gmysql-user=powerdns
gmysql-password=magedu
setgid=pdns #以下两行不变
setuid=pdns
[root@centos8 ~]#systemctl enable --now pdns
[root@centos8 ~]#ss -ntlpu |grep pdns_server
udp UNCONN 0 0 0.0.0.0:53 0.0.0.0:* users:(("pdns_server",pid=3073,fd=9))
udp UNCONN 0 0 [::]:53 [::]:* users:(("pdns_server",pid=3073,fd=10))
tcp LISTEN 0 128 0.0.0.0:53 0.0.0.0:* users:(("pdns_server",pid=3073,fd=11))
tcp LISTEN 0 128 [::]:53 [::]:* users:(("pdns_server",pid=3073,fd=12))
[root@centos8 ~]#yum -y install httpd php php-devel php-gd php-ldap php-mysqlnd php-odbc php-pear php-xml php-xmlrpc php-mhash gettext
[root@centos8 ~]#systemctl restart httpd
范例：CentOS 7 利用RPM包部署PowerDNS
#安装包：基于EPEL源
[root@centos7 ~]#yum install -y pdns pdns-backend-mysql mariadb-server
[root@centos7 ~]#systemctl enable --now mariadb
#准备mariadb中的数据库，表和用户
[root@centos7 ~]#mysql
MariaDB [(none)]> CREATE DATABASE powerdns;
MariaDB [(none)]> GRANT ALL ON powerdns.* TO 'powerdns'@'localhost' IDENTIFIED BY 'magedu';
#创建powerdns数据库中的表，参看下面文档实现
#https://doc.powerdns.com/md/authoritative/backend-generic-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,
name VARCHAR(255) NOT NULL,
type VARCHAR(10) NOT NULL,
modified_at INT NOT NULL,
account VARCHAR(40) NOT NULL,
comment VARCHAR(64000) NOT NULL,
PRIMARY KEY (id)
) Engine=InnoDB;
CREATE INDEX comments_domain_id_idx ON comments (domain_id);
CREATE INDEX comments_name_type_idx ON comments (name, type);
CREATE INDEX comments_order_idx ON comments (domain_id, modified_at);
CREATE TABLE domainmetadata (
id INT AUTO_INCREMENT,
domain_id INT NOT NULL,
kind VARCHAR(32),
content TEXT,
PRIMARY KEY (id)
) Engine=InnoDB;
CREATE INDEX domainmetadata_idx ON domainmetadata (domain_id, kind);
CREATE TABLE cryptokeys (
id INT AUTO_INCREMENT,
domain_id INT NOT NULL,
flags INT NOT NULL,
active BOOL,
content TEXT,
PRIMARY KEY(id)
) Engine=InnoDB;
CREATE INDEX domainidindex ON cryptokeys(domain_id);
CREATE TABLE tsigkeys (
id INT AUTO_INCREMENT,
name VARCHAR(255),
algorithm VARCHAR(50),
secret VARCHAR(255),
PRIMARY KEY (id)
) Engine=InnoDB;
CREATE UNIQUE INDEX namealgoindex ON tsigkeys(name, algorithm);
#配置PowerDNS使用mariadb作为后台数据存储
[root@centos7 ~]#vim /etc/pdns/pdns.conf，查找到包含launch= 的行，修改并添加下面的内容
launch=gmysql #修改此行
gmysql-host=localhost #以下行是增加的
gmysql-port=3306
gmysql-dbname=powerdns
gmysql-user=powerdns
gmysql-password=magedu
[root@centos7 ~]#grep -Ev "^#|^$" /etc/pdns/pdns.conf
launch=gmysql
gmysql-host=localhost
gmysql-port=3306
gmysql-dbname=powerdns
gmysql-user=powerdns
gmysql-password=magedu
setgid=pdns
setuid=pdns
#启动服务
[root@centos7 ~]#systemctl enable --now pdns
[root@centos7 ~]#ss -ntl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 50 *:3306 *:*
LISTEN 0 128 *:53 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 [::1]:25 [::]:*
LISTEN 0 128 [::]:53 [::]:*
LISTEN 0 128 [::]:22 [::]:*
#安装httpd和php相关包
[root@centos7 ~]#yum -y 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-mhash gettext
[root@centos7 ~]#systemctl enable --now httpd
#下载poweradmin程序，并解压缩到相应目录
[root@centos7 ~]#wget http://downloads.sourceforge.net/project/poweradmin/poweradmin-2.1.7.tgz
[root@centos7 ~]#tar xvf poweradmin-2.1.7.tgz -C /var/www/html
[root@centos7 ~]#cd /var/www/html
[root@centos7 ~]#mv poweradmin-2.1.7 poweradmin访问下面地址，启动PowerAdmin的网页安装向导：
http://powerdns服务器IP/poweradmin/install/
提供先前配置的数据库详情，同时为Poweradmin设置管理员密码
为Poweradmin创建一个受限用户
说明：
Username：PowerAdmin用户名
Password：上述用户的密码
Hostmaster：当创建SOA记录指定默认主机管理员
Primary nameserver：主域名服务器
Secondary namesever:辅域名服务器
按照下面页面说明，在数据库中创建用户并授权
MariaDB [(none)]>GRANT SELECT, INSERT, UPDATE, DELETE ON powerdns.* TO 'poweradmin'@'localhost‘ IDENTIFIED BY 'magedu';
按下面页面说明，创建config.in.php文件内容
vim /var/www/html/poweradmin/inc/config.inc.php
安装完毕后
删除install目录
rm -rf /var/www/html/poweradmin/install/登录http://powerdns服务器IP/poweradmin/
username：admin
password：magedu 参看第step 3
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