北京 网站开发 大兴,html5网站有哪些,上海大型企业名单,南宁seo怎么做优化团队目录 0100 系统环境0200 下载0300 安装0400 服务管理0401 关闭、启动、重启服务0402 查看服务状态 0500 查看配置文件0600 账号管理0601 添加账号0602 删除账号0603 修改密码0604 忘记root密码 0700 自动备份0800 远程访问 0100 系统环境 [rootlocalhost ~]# cat /proc/versio… 目录 0100 系统环境0200 下载0300 安装0400 服务管理0401 关闭、启动、重启服务0402 查看服务状态 0500 查看配置文件0600 账号管理0601 添加账号0602 删除账号0603 修改密码0604 忘记root密码 0700 自动备份0800 远程访问 0100 系统环境 [rootlocalhost ~]# cat /proc/version Linux version 5.15.0-89-generic (builddbos03-amd64-016) (gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #99-Ubuntu SMP Mon Oct 30 20:42:41 UTC 2023[rootlocalhost ~]# [rootlocalhost ~]# getconf LONG_BIT 64 0200 下载 https://dev.mysql.com/downloads/mysql/ https://cdn.mysql.com//Downloads/MySQL-8.2/mysql-server_8.2.0-1ubuntu22.04_amd64.deb-bundle.tar # 下载 wget https://cdn.mysql.com//Downloads/MySQL-8.2/mysql-server_8.2.0-1ubuntu22.04_amd64.deb-bundle.tar0300 安装 # 解压 tar xvf mysql-server_8.2.0-1ubuntu22.04_amd64.deb-bundle.tar# 安装注意顺序 sudo dpkg -i mysql-community-client-plugins_8.2.0-1ubuntu22.04_amd64.debsudo dpkg -i mysql-community-client-core_8.2.0-1ubuntu22.04_amd64.debsudo dpkg -i mysql-common_8.2.0-1ubuntu22.04_amd64.debsudo dpkg -i mysql-community-client_8.2.0-1ubuntu22.04_amd64.debsudo dpkg -i libmysqlclient22_8.2.0-1ubuntu22.04_amd64.deb sudo dpkg -i libmysqlclient-dev_8.2.0-1ubuntu22.04_amd64.debsudo dpkg -i mysql-client_8.2.0-1ubuntu22.04_amd64.deb# 依赖包 如果解压出来没有libaio1这个包那么直接用apt安装:apt install libaio1 sudo apt install libaio1# 依赖包 sudo apt install libmecab2sudo dpkg -i mysql-community-server-core_8.2.0-1ubuntu22.04_amd64.deb# 这一步要设置root密码默认root只能localhost连接 sudo dpkg -i mysql-community-server_8.2.0-1ubuntu22.04_amd64.debsudo dpkg -i mysql-server_8.2.0-1ubuntu22.04_amd64.deb# 查看版本 mysql -V # mysql Ver 8.2.0 for Linux on x86_64 (MySQL Community Server - GPL)0400 服务管理 0401 关闭、启动、重启服务 sudo service mysql stop sudo service mysql start sudo service mysql restart # 或者 sudo systemctl stop mysql sudo systemctl start mysql sudo systemctl restart mysql0402 查看服务状态 ps aux | grep mysql # 或者 sudo service mysql status # 或者 sudo systemctl status mysql0500 查看配置文件 which mysql/usr/bin/mysql/usr/bin/mysql --verbose --help | grep -A 1 Default optionsDefault options are read from the following files in the given order: /etc/my.cnf /etc/mysql/my.cnf ~/.my.cnf sudo vim /etc/mysql/my.cnf... !includedir /etc/mysql/conf.d/ !includedir /etc/mysql/mysql.conf.d/sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf[mysqld] pid-file /var/run/mysqld/mysqld.pid socket /var/run/mysqld/mysqld.sock datadir /var/lib/mysql log-error /var/log/mysql/error.log也可以连接到mysql查看 mysql -uroot -pmysql show variables like %datadir%; -------------------------------- | Variable_name | Value | -------------------------------- | datadir | /var/lib/mysql/ | -------------------------------- 1 row in set (0.00 sec)mysql show variables like %log_err%; -------------------------------------------------------------------- | Variable_name | Value | -------------------------------------------------------------------- | binlog_error_action | ABORT_SERVER | | log_error | /var/log/mysql/error.log | | log_error_services | log_filter_internal; log_sink_internal | | log_error_suppression_list | | | log_error_verbosity | 2 | -------------------------------------------------------------------- 5 rows in set (0.00 sec)0600 账号管理 0601 添加账号 # read and write CREATE USER auser% IDENTIFIED BY 123456; GRANT ALL PRIVILEGES ON *.* TO auser% WITH GRANT OPTION; FLUSH PRIVILEGES;# read only CREATE USER ruser% IDENTIFIED BY 123456; GRANT SELECT ON *.* TO ruser% WITH GRANT OPTION; FLUSH PRIVILEGES;# dump CREATE USER duserlocalhost IDENTIFIED BY 123456; GRANT SELECT, LOCK TABLES, PROCESS ON *.* TO duserlocalhost WITH GRANT OPTION; FLUSH PRIVILEGES;0602 删除账号 -- 添加 CREATE USER aaalocalhost IDENTIFIED BY 123456; -- 删除 DROP USER aaalocalhost;0603 修改密码 ALTER USER auser% IDENTIFIED WITH MYSQL_NATIVE_PASSWORD BY 234567; FLUSH PRIVILEGES;0604 忘记root密码 关闭服务安全模式启动服务跳过权限检查 # 关闭服务 sudo service mysql stop# 安全模式启动服务跳过权限检查 sudo mysqld_safe --skip-grant-tables 进入数据库不用输入密码 mysql -uroot -p--先刷新权限 flush privileges;-- 修改密码 ALTER USER rootlocalhost IDENTIFIED WITH mysql_native_password BY 123456;--再刷新权限 flush privileges; -- 退出 exit关闭服务正常启动验证 # 关闭服务 sudo service mysql stop# 正常启动服务 sudo systemctl start mysqlmysql -uroot -p0700 自动备份 创建备份脚本 vim /usr/bin/mysql_dump.sh内容如下 #!/bin/bashnamemysql_dump_date %Y%m%d_%H%M.sql.gzmysqldump -uduser-P3306 -p123456 -B dbname | gzip /bak/db/$name脚本授权 chmod -R 755 /usr/bin/mysql_dump.sh添加到定时任务 crontab -e20 1 * * * /usr/bin/mysql_dump.sh0800 远程访问 # 查看防火墙状态 sudo ufw status# 关闭防火墙 sudo ufw disable# 开启防火墙 sudo ufw enable# 开放端口 sudo ufw allow 3306# 立即生效 sudo ufw reload# 查看已开放端口 netstat -ntpl# 远程连接 mysql -hIP -u账号 -P端口 -p