linux下数据库双向同步之mysql

环境：lamp下搭建一个博客然后实现同步这里：以wordpress为例，进行实施具体操作如下：一、环境配置1.自动获取ip地址，虚拟机设置为桥接2.[root@gjpslave~]#yumi

环境：lamp 下搭建一个博客   然后实现同步

这里：以wordpress为例，进行实施

具体操作如下：

一、环境配置

1.自动获取ip地址，虚拟机设置为桥接

2.[root@gjpslave ~]# yum install wget

#换成163的yum源：

cd /etc/yum.repos.d

mv CentOS-Base.repo CentOS-Base.repo.save

wget mirrors.163.com/.help/CentOS5-Base-163.repo

#wget mirrors.163.com/.help/CentOS6-Base-163.repo

sed -i 's/enabled=1/enabled=0/g' /etc/yum/pluginconf.d/fastestmirror.conf

cat /dev/null > /var/cache/yum/timedhosts.txt

yum clean all

yum makecache

3.yum -y install gcc* gcc-c++ rpm-build mysql* httpd* php* ppp openldap-devel lrzsz pam-devel wget net-snmp* ntp openssl* libgssapi* iptraf libtool-ltdl* libtool crontabs libpcap* flex byacc libpcap ncurses ncurses-devel automake autoconf libtool make traceroute wget scp openssh* setuptool mlocate pam.i686 openssl.i686 libgcrypt.i686 openssl098e.i686 glibc.i686 fping nload iftop iperf chkconfig unrar --skip-broken 

yum -y update

4.系统安全

到dnspod.cn上为新的服务器指定域名

hostname xx 命名主机名

#### security ###

arp -a|grep $(/sbin/route -n|awk '$1=="0.0.0.0"{print $2}')|awk '{print $2 " " $4}'|sed 's#(##g'|sed 's#)##g' > /etc/ethers && arp -f

echo "SELINUX=disabled" > /etc/sysconfig/selinux

echo "SELINUXTYPE=targeted" >> /etc/sysconfig/selinux

setenforce 0

echo "HISTSIZE=5" >> /root/.bash_profile

chkconfig --level 2345 hplip off

chkconfig --level 2345 rpcidmapd off

chkconfig --level 2345 cups off

chkconfig --level 2345 portmap off

chkconfig --level 2345 yum-updatesd off

chkconfig --level 2345 iptables off

chkconfig --level 2345 sendmail off

killall cupsd portmap rpc.statd

service iptables stop

service yum-updatesd stop

service sendmail stop

echo "Port 2121" >> /etc/ssh/sshd_config

echo "ClientAliveInterval 9999" >> /etc/ssh/sshd_config

service sshd restart

 

二、博客搭建 wordpress

wget   

tar zxvf 

[root@gjpmaster tmp]# ls

hsperfdata_root  wordpress  wordpress-3.9-zh_CN.tar.gz  yum.log  yum_save_tx-2013-08

[root@gjpmaster tmp]# cp -a wordpress/*  /var/www/html/

[root@gjpmaster ~]# useradd -d /var/www/html/  -s /sbin/nologin  gjpmaster

useradd: warning: the home directory already exists.

Not copying any file from skel directory into it.

[root@gjpmaster ~]# passwd  gjpmaster

Changing password for user gjpmaster.

New password:   123456

BAD PASSWORD: it is too simplistic/systematic

BAD PASSWORD: is too simple 

Retype new password:

passwd: all authentication tokens updated successfully.

mysql> create  database gjpmaster;

Query OK, 1 row affected (0.04 sec)

mysql> grant all on gjpmaster.* to gjpmaster@localhost identified by "gjpmaster321";

Query OK, 0 rows affected (0.00 sec)

[root@gjpmaster ~]# mysql -u gjpmaster -p

Enter password:

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 4

Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> quit

Bye

[root@gjpmaster html]# cp -a wp-config-sample.php   wp-config.php

[root@gjpmaster html]# vi  wp-config.php

[root@gjpmaster html]# chmod  777 -R  wp-content/

[root@gjpmaster html]# vim /etc/httpd/conf/httpd.conf

     Options -Indexes

    RewriteEngine on

    RewriteBase /

    RewriteCond %{REQUEST_FILENAME} !-f

    RewriteCond %{REQUEST_FILENAME} !-d

    RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

[root@gjpmaster html]# service httpd restart

Stopping httpd:                                            [  OK  ]

Starting httpd: httpd: apr_sockaddr_info_get() failed for gjpmaster

httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName

                                                           [  OK  ]

 

前台无法进入：

[root@gjpmaster html]# vim wp-includes/template-loader.php

 

三、ftp用来给博客上传下载东西

#安装  
yum -y install vsftpd    
#修改配置文件    
vi /etc/vsftpd/vsftpd.conf

#system

local_umask=022

pasv_enable=YES

connect_from_port_20=YES

local_enable=YES

write_enable=YES

use_localtime=YES

listen=YES

listen_port=21

#security

guest_enable=NO

pam_service_name=vsftpd

tcp_wrappers=YES

userlist_enable=YES

userlist_deny=NO

userlist_file=/etc/vsftpd/user_list

chroot_local_user=YES

#chroot_list_enable=YES

#chroot_list_file=/etc/vsftpd.chroot_list

#log

xferlog_enable=YES

xferlog_std_format=YES

xferlog_file=/var/log/vsftpd.log

#anonymous

anonymous_enable=NO

#max_per_ip=13

#max_clients=50

#anon_world_readable_only=YES

#anon_other_write_enable=NO

#anon_mkdir_write_enable=NO

#anon_upload_enable=NO

no_anon_password=YES

#anon_max_rate=200000

#启动ftp

service vsftpd restart

#允许匿名登陆

修改配置文件 要有以下两条

no_anon_password=YES

anonymous_enable=YES

增加anonymous至/etc/vsftpd/user_list

#增加用户

两种情况 一种是有指定的目录分给指定的用户 如 将/var/ftp分给用户 wow 二是直接建立用户 目录就是/home/用户名

1.以将/var/ftp分配给wow为例

useradd -s /sbin/nologin -d /var/ftp wow      // /sbin/nologin 是安全配置 意思是这个用户无法使用ssh登陆仅能使用ftp登陆 -d后面跟的是指定给此用户的目录

passwd wow //修改wow的用户名

echo wow >> /etc/vsftpd/user_list  这里一定要用>> 否则会清空里面的原来存放的用户名 只有这个列表user_list内的用户名可以登陆ftp上传文件 所以每添加一个用户名都要写入此文件

2.建立一个test用户 可以自己上传或下载文件

usreadd -s /sbin/nologin test

passwd test

echo test >> /etc/vsftpd/user_list