实现NFS共享wordpress

author：JevonWei
版权声明：原创作品

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• 两台Web服务器，一台mysql服务器，一台NFS服务器，一台DNS服务器

拓扑结构

拓扑环境

web1   192.168.198.110
web2   192.168.198.120
mysql  192.168.198.130
DNS    192.168.198.10
NFS    192.168.198.131

web1 192.168.198.110

[root@danran ~]# yum -y install httpd php php-mysql
[root@danran ~]# service httpd restart
[root@danran ~]# chkconfig httpd on
[root@danran ~]# setenforce 0
[root@danran ~]# iptables -F

web1 192.168.198.120

[root@danran ~]# yum -y install httpd php php-mysql
[root@danran ~]# service httpd restart
[root@danran ~]# chkconfig httpd on
[root@danran ~]# setenforce 0
[root@danran ~]# iptables -F

mysql 192.168.198.130

[root@danran ~]# yum -y install mariadb mariadb-server
[root@danran ~]# systemctl start mariadb
[root@danran ~]# systemctl enable mariadb
[root@danran ~]# iptables -F
[root@danran ~]# setenforce 0
[root@danran ~]# mysql_secure_installation  \设置数据库安全规则
[root@danran ~]# mysql -uroot -pdanran
MariaDB [(none)]> create database nfsdb;
MariaDB [(none)]> grant all on *.* to nfs@'192.168.198.120' identified by 'danran'; \授予web服务器连接数据库
grant all on *.* to nfs@'192.168.198.110' identified by 'danran'; \授予web服务器连接数据库

DNS 192.168.198.10

[root@danran ~]# yum -y install bind
[root@danran ~]# systemctl start named
[root@danran ~]# systemctl enable named
[root@danran ~]# setenforce 0
[root@danran ~]# iptables -F
[root@danran ~]# vim /etc/named.conf 
    options {
        listen-on port 53 { localhost; };
        allow-query     { any; };
[root@danran ~]# vim /etc/named.rfc1912.zones 
    zone "danran.com" IN {
        type master;
        file "danran.zome";
        allow-update { none; };
    }
[root@danran ~]# cp -p /var/named/named.localhost /var/named/danran.zone
[root@danran ~]# vim /var/named/danran.zone
    NS      ns
    $TTL 1D
    @       IN SOA  ns.danran.com dns.danran.com. (
                                    0       ; serial
                                    1D      ; refresh
                                    1H      ; retry
                                    1W      ; expire
                                    3H )    ; minimum
            NS      ns
    ns      A       192.168.198.10
    websrv  A       192.168.198.110
    websrv  A       192.168.198.120
    mysql   A       192.168.198.130
    www     CNAME   websrv
[root@danran ~]# named-checkconf 
[root@danran ~]# named-checkzone "danran.com" /var/named/danran.zone
[root@danran ~]# systemctl restart named

NFS 192.168.198.131

[root@danran app]# mkdir nfs
[root@danran app]# ls
nfs
[root@danran app]# chmod o+w nfs/
[root@danran app]# useradd -r nfsuser -s /sbin/nologin 
[root@danran app]# vim /etc/exports \将/app/nfs目录共享给192.168.198.110和192.168.198.120两台web服务器
    /app/nfs   192.168.198.110(rw,all_squash,anonuid=991,anongid=986) 192.168.198.120(rw,all_squash,anonuid=991,anongid=986)
[root@danran app]# systemctl restart nfs
[root@danran app]# systemctl restart rpcbind
[root@danran app]# firewall-cmd --add-service=nfs --permanent
[root@danran app]# firewall-cmd --add-service=rpc-bind --permanent
[root@danran app]# firewall-cmd --reload
[root@danran app]# setenfore 0
[root@danran app]# iptables -F

web1和web2 192.168.198.110/120挂载NFS目录

[root@danran html]# vim /etc/fstab
    192.168.198.131:/app/nfs  /var/www/html   nfs   defaults 0 0 
[root@danran html]# mount -a

在NFS服务器192.168.198.131的/app/nfs共享目录安装wordpress

tar xvf  wordpress-4.8-zh_CN.tar.gz
mv wordpress /app/nfs/blog
cd /app/nfs/blog

setfacl -m u:nfsuser:rwx blog/ \因为所有远程用户都映射为了nfsuser，故授予nfsuserrwx权限
或
chmod o+w blog
setfacl -m u:daemon:rwx blog/
或
cp wp-config-sample.php  wp-config.php
vim wp-config.php
    define('DB_NAME', 'nfsdb');
    define('DB_USER', 'nfs');
    define('DB_PASSWORD', 'danran');
    define('DB_HOST', '192.168.198.130');

两台web服务器上编译安装xcache

下载xcache-3.2.0.tar.bz2
tar xf xcache-3.2.0.tar.bz2
cd  xcache-3.2.0

/app/php/bin/phpize  生成编译环境.configure脚本
./configure --enable-xcache  --with-php-config=/app/php/bin/php-config
make && make install
注意最后结果的一行目录
ls  /app/php/lib/php/extensions/no-debug-non-zts-20131226/xcache.so

mkdir /etc/php.d/
cp  xcache.ini  /etc/php.d/
vim /etc/php.d/xcache.ini
    [xcache-common]
    修改
    extension = /app/php/lib/php/extensions/no-debug-non-zts-20131226/xcache.so

service httpd restart

登录web服务器测试

www.danran.com/blog