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2026年查看本机本级信息（我查看本机信息）

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查看本机本级信息（我查看本机信息）nbsp yum y install rsyncd uid rsync gid rsync port 873 fake super yes use chroot no max connections 200 timeout 300 pid file var run rsyncd pid lock file var run rsync lock log file var log rsyncd log ignore errors read



yum -y install rsyncd

uid = rsync

gid = rsync

port = 873

fake super = yes

use chroot = no

max connections = 200

timeout = 300

pid file = /var/run/rsyncd.pid

lock file = /var/run/rsync.lock

log file = /var/log/rsyncd.log

ignore errors

read only = false

list = false

hosts allow = 172.16.1.0/24

hosts deny = 0.0.0.0/32

auth users = rsync_backup

secrets file = /etc/rsync.password

[backup]

comment = "backup dir by oldboy"

path = /backup

[root@backup ~] # useradd -s /sbin/nologin -M rsync

echo "rsync_backup:oldboy123" > /etc/rsync.password && chmod 600 /etc/rsync.password

mkdir -p /backup && chown -R rsync. /backup

systemctl restart rsyncd && systemctl enable rsyncd

yum -y install nfs-utils

[root@nfs01 ~] # vim /etc/exports

/data 172.16.1.0/24(rw,sync)

mkdir -p /data &&chown -R nfsnobody. /data

[root@nfs01 ~] # systemctl restart rpcbind.socket && systemctl enable rpcbind.socket

[root@nfs01 ~] # systemctl restart nfs && systemctl enable nfs

yum -y install rsync

echo " oldboy123" > /etc/rsync.password && chmod 600 /etc/rsync.password

yum -y install inotify-tools

[root@nfs01 ~] # cd /usr/local/

[root@nfs01 local] # unzip sersync_installdir_64bit.zip

[root@nfs01 local] # mv sersync_installdir_64bit/* https://www.cnblogs.com/liangyuxing/p/

[root@nfs01 ~] # cd /usr/local/

[root@nfs01 local] # cd sersync/conf

[root@nfs01 conf] # vim confxml.xml

………………………………………………

<sersync>

<localpath watch="/data">

<remote ip="172.16.1.41" name="/backup"/>

<!--<remote ip="192.168.8.39" name="tongbu"/>-->

<!--<remote ip="192.168.8.40" name="tongbu"/>-->

</localpath>

<rsync>

<commonParams params="-az"/>

<auth start="true" users="rsync_backup" passwordfile="/etc/rsync.password"/>

[root@nfs01 bin] # chmod +x sersync && sersync -dro /usr/local/sersync/conf/confxml.xml

export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/sersync/bin/:/usr/local/sersync/bin/

5.2.5.1 ERROR: The remote path must start with a module name not a /

<sersync>

<localpath watch="/data">

<remote ip="172.16.1.41" name="backup"/>            这里是模块不是备份目录

5.2.5.2 测试成功

添加

cd /data && rsync -az -R "https://www.cnblogs.com/liangyuxing/p/11.txt" rsync_backup@172.16.1.41::backup --password-file=/etc/rsync.password

删除

cd /data && rsync -az -R --delete https://www.cnblogs.com/liangyuxing/p/ --include="11.txt" --exclude=* rsync_backup@172.16.1.41::backup --password-file=/etc/rsync.password

服务器172.16.1.41

备份目录:/backup

服务器 172.16.1.31

本地存储目录:/backup/172.16.1.31

/etc/password

/etc/shadow

/etc/rc.d/rc.local

/usr/local

/var/log/messages

#!/bin/bash

DIR_INFO="/backup"

IP_INFO=$(hostname -i)

mkdir -p $DIR_INFO/$IP_INFO

#开始压缩备份目录

tar -zcPhf $DIR_INFO/$IP_INFO/backup_nfs01_$(date +%F_'week'%w)_data.tar.gz /etc/passwd /etc/shadow /etc/rc.d/rc.local /usr/local /var/log/messages

#开始创建指纹文件

find $DIR_INFO -name "*.tar.gz" -type f -mmin -20 | xargs md5sum > $DIR_INFO/$IP_INFO/finger.txt

#开始发送数据

rsync -azL $DIR_INFO/$IP_INFO/ rsync_backup@172.16.1.41::backup/$IP_INFO --password-file=/etc/rsync.password

#查找出大于7天的数据包删除

find $DIR_INFO -type f -name "*.tar.gz" -mtime +7 -delete

6.3.2.1 编写脚本

[root@backup scripts] # vim backup_server.sh

#!/bin/bash

DIR_INFO="/backup"

.纹验证

find $DIR_INFO -name "*finger*.txt" -type f | xargs md5sum -c > /tmp/finger.txt

#给管理发送

mail -s "check finger" @.com < /tmp/finger.txt

6.3.2.2 编写邮件信息

set from=@.com

set smtp=smtp..com

set smtp-auth-user=@.com

set smtp-auth-password=enoncgdkvjhlbjbd

set smtp-auth=login

(http://nginx.org/en/linux_packages.html)

vim /etc/yum.repos.d/nginx.repo

[nginx-stable]

name=nginx stable repo

baseurl=http://nginx.org/packages/centos/$releasever/$basearch/

gpgcheck=1

enabled=1

gpgkey=https://nginx.org/keys/nginx_signing.key

module_hotfixes=true

yum -y install nginx

useradd -M -s /sbin/nologin www

user www;                    修改www

worker_processes 1;

error_log /var/log/nginx/error.log warn;

pid /var/run/nginx.pid;

events {

worker_connections 1024;

}

http {

include /etc/nginx/mime.types;

default_type application/octet-stream;

log_format main '$remote_addr - $remote_user [$time_local] "$request" '

'$status $body_bytes_sent "$http_referer" '

'"$http_user_agent" "$http_x_forwarded_for"';

access_log /var/log/nginx/access.log main;

sendfile on;

#tcp_nopush on;

keepalive_timeout 65;

#gzip on;

include /etc/nginx/conf.d/*.conf;

}

systemctl restart nginx && systemctl enable nginx

yum remove php-mysql php php-fpm php-common

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

yum install -y php71w php71w-cli php71w-common php71w-devel php71w-embedded php71w-gd php71w-mcrypt php71w-mbstring php71w-pdo php71w-xml php71w-fpm php71w-mysqlnd php71w-opcache php71w-pecl-memcached php71w-pecl-redis php71w-pecl-mongodb

[root@web01 yum.repos.d] # vim /etc/php-fpm.d/www.conf

; Start a new pool named 'www'.

[www]

; Unix user/group of processes

; Note: The user is mandatory. If the group is not set, the default user's group

; will be used.

; RPM: apache Choosed to be able to access some dir as httpd

user = www                        修改属主

; RPM: Keep a group allowed to write in log dir.

group = www                        修改属组

vim /etc/php.ini

779 upload_max_filesize = 10M                指定最大上传文件大小限制

656 post_max_size = 10M                    请求主体最大尺寸

802 max_execution_time = 300                执行上传数据操作最大执行时间

[root@web02 yum.repos.d] # systemctl restart php-fpm.service

[root@web02 yum.repos.d] #

yum install mariadb-server mariadb -y

[root@db ~] # systemctl start mariadb.service && systemctl enable mariadb.service

Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.

[root@db ~] #

MariaDB [(none)]> create database wordpress_7;

Query OK, 1 row affected (0.01 sec)

MariaDB [(none)]> grant all on dwordpress_7.* to 'wordpress_7'@'172.16.1.%' identified by 'oldboy123';

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> create database discuz_7;

Query OK, 1 row affected (0.01 sec)

MariaDB [(none)]> grant all on discuz_7.* to 'discuz_7'@'172.16.1.%' identified by 'oldboy123';

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> create database wecenter_7;

Query OK, 1 row affected (0.01 sec)

MariaDB [(none)]> grant all on wecenter_7.* to 'wecenter_7'@'172.16.1.%' identified by 'oldboy123';

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> create database wordpress_8;

Query OK, 1 row affected (0.01 sec)

MariaDB [(none)]> grant all on dwordpress_8.* to 'wordpress_8'@'172.16.1.%' identified by 'oldboy123';

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> create database discuz_8;

Query OK, 1 row affected (0.01 sec)

MariaDB [(none)]> grant all on discuz_8.* to 'discuz_8'@'172.16.1.%' identified by 'oldboy123';

Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> create database wecenter_8;

Query OK, 1 row affected (0.01 sec)

MariaDB [(none)]> grant all on wecenter_8.* to 'wecenter_8'@'172.16.1.%' identified by 'oldboy123';

Query OK, 0 rows affected (0.00 sec)

[root@web01 conf.d] # vim blog.conf

server {

listen 80;

server_name blog.oldboy.com;

client_max_body_size 10m;

location / {

root /html/blog;

index index.php index.html index.htm;

}

location ~ .php$ {

root /html/blog;

fastcgi_pass 127.0.0.1:9000;

fastcgi_index index.php;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

}

}

mkdir -p /html/blog && chown -R www. /html/*

server {

listen 80;

server_name bbs.oldboy.com;

client_max_body_size 10m;

location / {

root /html/bbs;

index index.php index.html index.htm;

}

location ~ .php$ {

root /html/bbs;

fastcgi_pass 127.0.0.1:9000;

fastcgi_index index.php;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

}

}

mkdir -p /html/bbs && chown -R www. /html/*

server {

listen 80;

server_name zhihu.oldboy.com;

client_max_body_size 10m;

location / {

root /html/zhihu;

index index.php index.html index.htm;

}

location ~ .php$ {

root /html/zhihu;

fastcgi_pass 127.0.0.1:9000;

fastcgi_index index.php;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

}

}

mkdir -p /html/zhihu && chown -R www. /html/*

yum -y install nginx

[root@lb01 conf.d] # pwd

/etc/nginx/conf.d

[root@lb01 conf.d] # cat www.conf

upstream oldboy {

server 10.0.0.7:80;

server 10.0.0.8:80;

}

server {

listen 80;

server_name localhost;

location / {

proxy_pass http://oldboy;

proxy_set_header X-Forwarded-For $remote_addr;

}

}

[root@lb01 conf.d] #

成功

yum -y install keepalived

[root@lb01 ~] # vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {

notification_email {

}

notification_email_from

smtp_server 192.168.200.1

smtp_connect_timeout 30

router_id lb01

}

vrrp_instance oldboy {

state MASTER

interface eth0

virtual_router_id 66

priority 150

advert_int 1

authentication {

auth_type PASS

auth_pass 1234

}

virtual_ipaddress {

10.0.0.3

}

}

[root@lb02 ~] #

[root@lb02 ~] # vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {

notification_email {

}

notification_email_from

smtp_server 192.168.200.1

smtp_connect_timeout 30

router_id lb02

}

vrrp_instance oldboy {

state BACKUP

interface eth0

virtual_router_id 66

priority 100

advert_int 1

authentication {

auth_type PASS

auth_pass 1234

}

virtual_ipaddress {

10.0.0.3

}

}

systemctl restart keepalived.service && systemctl enable keepalived.service

[root@lb01 conf.d] # vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {

notification_email {

router_id lb01

}

}

vrrp_instance oldboy {

state MASTER

interface eth0

virtual_router_id 66

priority 150

advert_int 1

authentication {

auth_type PASS

auth_pass 1234

}

virtual_ipaddress {

10.0.0.3

}

}

vrrp_instance girl {

state BACKUP

interface eth0

virtual_router_id 67

priority 100

advert_int 1

authentication {

auth_type PASS

auth_pass 1234

}

virtual_ipaddress {

10.0.0.4

}

}

[root@lb02 conf.d] # vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {

notification_email {

router_id lb02

}

}

vrrp_instance oldboy {

state BACKUP

interface eth0

virtual_router_id 66

priority 100

advert_int 1

authentication {

auth_type PASS

auth_pass 1234

}

virtual_ipaddress {

10.0.0.3

}

}

vrrp_instance oldgirl {

state MASTER

interface eth0

virtual_router_id 67

priority 150

advert_int 1

authentication {

auth_type PASS

auth_pass 1234

}

virtual_ipaddress {

10.0.0.4

}

}

[root@lb02 conf.d] # vim www.conf

upstream oldboy {

ip_hash;

server 172.16.1.7:80;

server 172.16.1.8:80;

}

server {

listen 80;

server_name localhost;

location / {

proxy_pass http://oldboy;

proxy_set_header Host $host;

proxy_set_header X-Forwarded-For $remote_addr;

}

}

服务器

外网

内网

web01

10.0.0.7

172.16.1.7

  • 保证了数据的机密性(使用的数据对称加密算法来进行的)
  • 保证了数据的完整性(使用了指纹验证的方法来进行的)

    • 数据机密性利用了私钥和公钥加密的对称算法,发送方和接收方都有相同的钥匙和锁,当数据发送过来,接收方只有相同的钥匙才可以打开
    • 数据完整性利用的是指纹验证信息同样指纹也会用对称加密将指纹保护起来,以防被人截取

      • [root@web01 yum.repos.d] # yum -y install nginx

      [root@web01 yum.repos.d] # openssl genrsa -idea -out /etc/nginx/server.key 2048

      Generating RSA private key, 2048 bit long modulus

      ..................................................................................+++

      ....................................................+++

      e is 65537 (0x10001)

      Enter pass phrase for /etc/nginx/server.key:

      Verifying - Enter pass phrase for /etc/nginx/server.key:

      [root@web01 yum.repos.d] #

      • genrsa                创建私钥文件的类型
      • idea                    需要设置密码
      • out                    指定创建私钥的文件
      • 2048                创建的私钥文件密码个数

        • [root@web01 yum.repos.d] # cd /etc/nginx/

        [root@web01 nginx] # openssl req -days 36500 -x509 -sha256 -nodes -newkey rsa:2048 -keyout server.key -out server.crt

        Generating a 2048 bit RSA private key

        .....................+++

        You have new mail in /var/spool/mail/root

        [root@web01 yum.repos.d] #

        • req                        创建一个证书
        • days                        指定证书的有效期(天)
        • x509                    指定生成的证书格式类型
        • sha256                    指定生成证书的加密算法
        • nodes                    去除私钥的密码
        • keyout                    指定私钥文件
        • out                        指定生成的公钥文件

          • 13.3.3.1 http

          的实现

          13.3.3.1.1 环境的准备

          [root@web01 html] # vim /etc/nginx/conf.d/www.conf

          1 server{

          2 listen 80;

          3 server_name www.oldboy.com;

          4 root /html/www/;

          5 autoindex on;

          6 }

          [root@web01 ~] # tree /html/www/

          /html/www/

          ├── 10.txt

          ├── 1.txt

          ├── 2.txt

          ├── 3.txt

          ├── 4.txt

          ├── 5.txt

          ├── 6.txt

          ├── 7.txt

          ├── 8.txt

          └── 9.txt

          0 directories, 10 files

          [root@web01 ~] #

          13.3.3.1.2 查看是否正常

          13.3.3.2 https

          实现

          13.3.3.2.1 环境的准备

          [root@web01 conf.d] # vim www.conf

          server{

          listen 80;

          server_name www.oldboy.com;

          rewrite /(.*)$ https://$host/$1;

          }

          server{

          listen 443 ssl;

          server_name www.oldboy.com;

          ssl_certificate server.crt;

          ssl_certificate_key server.key;

          root /html/www/;

          autoindex on;

          }

          13.3.3.2.2 查看是否正常

          服务器

          外网

          内网

          m01

          10.0.0.61

          172.16.1.61

          nfs01

          10.0.0.31

          172.16.1.31

          br>

          br>

          img src="https://img2018.cnblogs.com/blog///--.png" alt="">

        • 首先A服务器将带有时间戳的信息(10:00:00)发送给B服务器,B服务器接收时间是11:00:01

        • B服务器将带有时间戳(11:00:02)的信息发送给A服务器,A服务器接收到是10:00:03

        • NTP报文的延迟时间是(4-1)-(3-2)=2

        • 时间差是(4-3)+(2-1)/2=1小时

          • 允许内网其他机器同步时间

          img src="https://img2018.cnblogs.com/blog///--.png" alt="">

          允许上层时间服务器修改本机时间

          外部时间服务器不可用的时候,以本地的时间作为同步时间

          img src="https://img2018.cnblogs.com/blog///--.png" alt="">

          [root@m01 ~] # date -s ""             修改时间为

          ping: baidu.com: Name or service not known                     域名解析失败

          connect: Network is unreachable                             外网不通畅

          root@nfs01 ~] # ntpdate 172.16.1.61                         内网同步服务端时间

          Tue Oct 1 00:02:56 CST 2019                             查看时间

          Tue Oct 1 00:07:48 CST 2019                             服务端现在的时间

          Tue Oct 1 00:07:53 CST 2019                             客户端现在的时间

          tbody valign="top">

          服务器

          外网

          内网

          m01

          10.0.0.61

          172.16.1.61

          createrepo -dpo /var/www/html/centos/7/os/x86_64 /var/www/html/centos/7/os/x86_64    初始化过程

          createrepo --update /var/www/html/centos/7/os/x86_64            每加入一个rpm包就更新下

          yum clean all                                            清空yum仓库的缓存

          yum install --downloadonly --downloaddir=/home/ lrzsz                yum只下载不安装

          可以出现这个证明支持vpn

          查看转发是否开启

          设置内核转发

          添加本级公网IP

          分配给vpn的内网网段

          col style="width: 237px">

          col style="width: 237px">

          col style="width: 237px">

          服务器

          外网

          内网

          jumpserver

          10.0.0.91

          172.16.1.91

          关闭

          关闭

          10.0.0.81

          y

          smtp..com

          @.com

          enoncgdkvjhlbjbd

          y

          admin

          admin

          admin

          SUCCESS

          服务器

          外网

          内网

          m01

          10.0.0.5

          172.16.1.5

          web01

          10.0.0.7

          172.16.1.7

          y            

          y            

          y        

          y            

          hostname

          服务器

          内网

          外网

          nfs (主)

          172.16.1.31

          10.0.031

          mysql(副)

          172.16.1.51

          10.0.0.51

          web

          172.16.1.7

          10.0.0.7

          mysql( 主 )

          mysql( 副 )

          • 读写分离,支持更大的并发,提高用户的体验度
          • 拥有数据库的冗余机制,提高数据的安全性

          • 主服务器开启big-log日志(记录数据的增删改查)
          • 从服务器开启I/O线程响应请求想将big-log的日志内容给我
          • 从服务器会将数据放到relay-info中,生成master.info,(记录master的一些信息)
          • 从服务器会一直监控relay日志的更新,一旦有更新,将信息解析成sql内容.添加数据库中
          • 保持2个服务器的数据库内容一致
          • 并发量大的时候
          • 数据需要备份
          • 大型公司或者一些国家级的单位需要使用

          22.4.1.1 数据库开始安装

          [root@db ~] # yum install mariadb mariadb-server -y

          22.4.1.2 数据库启动

          [root@db ~] # systemctl start mariadb.service

          22.4.1.3 安装数据库

          [root@db ~] # mysql_secure_installation

          Enter current password for root (enter for none):

          OK, successfully used password, moving on...

          Set root password? [Y/n] y

          New password:

          Re-enter new password:

          Password updated successfully!

          Reloading privilege tables..

          ... Success!

          Remove anonymous users? [Y/n] y

          ... Success!

          Disallow root login remotely? [Y/n] n

          Remove test database and access to it? [Y/n] y

          - Dropping test database...

          ... Success!

          - Removing privileges on test database...

          ... Success!

          Reload privilege tables now? [Y/n] y

          ... Success!

          Thanks for using MariaDB!

          22.4.1.4 登录数据库创建数据库并且添加测试数据

          [root@db ~] # mysql -uroot -p

          MariaDB [(none)]> create database DB1;            创建数据库DB1

          Query OK, 1 row affected (0.00 sec)

          MariaDB [(none)]> show databases;                显示数据库

          +--------------------+

          | Database |

          +--------------------+

          | information_schema |

          | DB1 |

          | mysql |

          | performance_schema |

          +--------------------+

          4 rows in set (0.00 sec)

          MariaDB [(none)]> grant all privileges on *.* to root@'%' identified by '' with grant option;        进行数据库授权和密码的修改

          Query OK, 0 rows affected (0.00 sec)

          MariaDB [(none)]> use DB1;            使用数据库

          Database changed

          MariaDB [DB1]> create table test (name VARCHAR(20), sex CHAR(1), birth DATE, birthaddr VARCHAR(20));                        创建表

          Query OK, 0 rows affected (0.02 sec)

          MariaDB [DB1]> insert into test values ('abccs','f','1995-10-22','china');            插入数据

          Query OK, 1 row affected (0.00 sec)

          MariaDB [DB1]> select * from test;                    查看数据

          +-------+------+------------+-----------+

          | name | sex | birth | birthaddr |

          +-------+------+------------+-----------+

          | abccs | f | 1995-10-22 | china |

          +-------+------+------------+-----------+

          1 row in set (0.00 sec)

          MariaDB [DB1]>

          22.4.1.5 将数据进行备份,并且发送到从服务器上

          [root@db ~] # mysqldump -h localhost -u root -p DB1 > /tmp/1.sql

          Enter password:

          [root@db ~] #

          [root@db ~] # scp -r /tmp/1.sql 172.16.1.31:/tmp/

          root@172.16.1.31's password:

          1.sql 100% 1926 1.2MB/s 00:00

          [root@db ~] #

          22.4.1.6 主服务器配置文件进行配置

          #设置服务器ID,为1的表示为主服务器；如果服务器没有以下配置，添加，如果有就跳过。

          server-id=1

          启动MySQ二进制日志系统，注意：如果原来的配置文件中已经有这一行，就不用再添加了。

          log_bin=mysql-bin?

          需要同步的数据库名，如果有多个数据库，可重复此参数，每个数据库一行

          binlog-do-db=DB1

          不同步mysql系统数据库

          binlog-ignore-db=mysql

          22.4.1.7 重启服务

          [root@db ~] # systemctl restart mariadb.service

          [root@db ~] #

          [root@db ~] # mysql -uroot -p

          MariaDB [(none)]> show master status;

          +-------------------+----------+--------------+------------------+

          | File | Position | Binlog_Do_DB | Binlog_Ignore_DB |

          +-------------------+----------+--------------+------------------+

          | mysql-bin?.000001 | 245 | DB1 | mysql |

          +-------------------+----------+--------------+------------------+

          1 row in set (0.00 sec)

          MariaDB [(none)]>

          • 查看主服务器，出现以上类似信息；如果看不见以下结果或者为空的话，说明my.cnf配置文件配置的有问题，请检查即可。
          • 这里记住File的值：mysql-bin.000001和Position的值：245，后面会用到。

          22.4.2.1 数据库开始安装

          [root@db ~] # yum install mariadb mariadb-server -y

          22.4.2.2 数据库启动

          [root@db ~] # systemctl start mariadb.service

          22.4.2.3 安装数据库

          [root@db ~] # mysql_secure_installation

          Enter current password for root (enter for none):

          OK, successfully used password, moving on...

          Set root password? [Y/n] y

          New password:

          Re-enter new password:

          Password updated successfully!

          Reloading privilege tables..

          ... Success!

          Remove anonymous users? [Y/n] y

          ... Success!

          Disallow root login remotely? [Y/n] n

          Remove test database and access to it? [Y/n] y

          - Dropping test database...

          ... Success!

          - Removing privileges on test database...

          ... Success!

          Reload privilege tables now? [Y/n] y

          ... Success!

          Thanks for using MariaDB!

          22.4.2.4 登录数据库创建数据库并且添加测试数据

          [root@db ~] # mysql -uroot -p

          MariaDB [(none)]> create database DB1;            创建数据库DB1

          Query OK, 1 row affected (0.00 sec)

          MariaDB [(none)]> show databases;                显示数据库

          +--------------------+

          | Database |

          +--------------------+

          | information_schema |

          | DB1 |

          | mysql |

          | performance_schema |

          +--------------------+

          4 rows in set (0.00 sec)

          22.4.2.5 导入数据库

          [root@nfs01 ~] # mysql -h localhost -u root -p DB1 < /tmp/1.sql

          Enter password:

          [root@nfs01 ~] #

          22.4.2.6 更新master信息

          [root@nfs01 ~] # mysql -uroot -p

          Enter password:

          MariaDB [(none)]> slave stop;

          Query OK, 0 rows affected, 1 warning (0.00 sec)

          MariaDB [(none)]> use DB1;

          Database changed

          MariaDB [DB1]> change master to master_host='172.16.1.51',master_user='root',master_password='',master_log_file='mysql-bin?.000001',master_log_pos=245;

          MariaDB [DB1]>

          • change master to master_host='主服务器',master_user='mysql用户名',master_password='mysql服务密码',master_log_file='File值',master_log_pos=Postion值;

          22.4.2.7 添加配置文件(/etc/my.cnf)

          [mysqld]

          datadir=/var/lib/mysql

          socket=/var/lib/mysql/mysql.sock

          #设置服务器ID,为1的表示为主服务器；如果服务器没有以下配置，添加，如果有就跳过。

          server-id=2

          启动MySQ二进制日志系统，注意：如果原来的配置文件中已经有这一行，就不用再添加了。

          log_bin=mysql-bin?

          需要同步的数据库名，如果有多个数据库，可重复此参数，每个数据库一行

          binlog-do-db=DB1

          不同步mysql系统数据库

          binlog-ignore-db=mysql

          22.4.2.8 重启数据库

          [root@nfs01 ~] # systemctl restart mariadb

          [root@nfs01 ~] #

          22.4.2.8 查看主从同步是否正常

          [root@nfs01 ~] # mysql -uroot -p

          Enter password:

          Welcome to the MariaDB monitor. Commands end with ; or g.

          Your MariaDB connection id is 4

          Server version: 5.5.64-MariaDB MariaDB Server

          Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

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

          MariaDB [(none)]> show master status;                     查看状态

          +-------------------+----------+--------------+------------------+

          | File | Position | Binlog_Do_DB | Binlog_Ignore_DB |

          +-------------------+----------+--------------+------------------+

          | mysql-bin?.000001 | 245 | DB1 | mysql |

          +-------------------+----------+--------------+------------------+

          1 row in set (0.00 sec)

          MariaDB [(none)]> slave start;                            启动slave

          Query OK, 0 rows affected, 1 warning (0.00 sec)

          MariaDB [(none)]> show master statusG;                    查看主从同步是否正常

          * 1. row *

          File: mysql-bin?.000001

          Position: 245

          Binlog_Do_DB: DB1

          Binlog_Ignore_DB: mysql

          1 row in set (0.00 sec)

          ERROR: No query specified

          MariaDB [(none)]> show slave statusG;

          * 1. row *

          Slave_IO_State: Waiting for master to send event

          Master_Host: 172.16.1.51

          Master_User: root

          Master_Port: 3306

          Connect_Retry: 60

          Master_Log_File: mysql-bin?.000001

          Read_Master_Log_Pos: 245

          Relay_Log_File: mariadb-relay-bin.000005

          Relay_Log_Pos: 530

          Relay_Master_Log_File: mysql-bin?.000001

          Slave_IO_Running: Yes

          Slave_SQL_Running: Yes

          Replicate_Do_DB:

          Replicate_Ignore_DB:

          Replicate_Do_Table:

          Replicate_Ignore_Table:

          Replicate_Wild_Do_Table:

          Replicate_Wild_Ignore_Table:

          Last_Errno: 0

          Last_Error:

          Skip_Counter: 0

          Exec_Master_Log_Pos: 245

          Relay_Log_Space: 826

          Until_Condition: None

          Until_Log_File:

          Until_Log_Pos: 0

          Master_SSL_Allowed: No

          Master_SSL_CA_File:

          Master_SSL_CA_Path:

          Master_SSL_Cert:

          Master_SSL_Cipher:

          Master_SSL_Key:

          Seconds_Behind_Master: 0

          Master_SSL_Verify_Server_Cert: No

          Last_IO_Errno: 0

          Last_IO_Error:

          Last_SQL_Errno: 0

          Last_SQL_Error:

          Replicate_Ignore_Server_Ids:

          Master_Server_Id: 1

          1 row in set (0.00 sec)

          ERROR: No query specified

          MariaDB [(none)]>

          今天的文章 2026年查看本机本级信息（我查看本机信息）分享到此就结束了，感谢您的阅读。

          编程小号
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