江门网站推广策划,怎么在wordpress免费注册博客网站,提升网站流量,网站怎么防采集提示#xff1a;以下操作均在root用户下进行#xff0c;如在普通用户#xff0c;请自行加上sudo#xff01;# 查看有没有安装MySQL#xff1a;dpkg -l | grep mysql# 安装MySQL#xff1a;apt install mysql-server安装完成之后可以使用如下命令来检查是否安装成功#…提示以下操作均在root用户下进行如在普通用户请自行加上sudo# 查看有没有安装MySQLdpkg -l | grep mysql# 安装MySQLapt install mysql-server安装完成之后可以使用如下命令来检查是否安装成功netstat -tap | grep mysql通过上述命令检查之后如果看到有 mysql 的socket处于 LISTEN 状态则表示安装成功。登录mysql数据库可以通过如下命令mysql -u root -p-u 表示选择登陆的用户名 -p 表示登陆的用户密码现在是mysql数据库是没有密码的Enter password:处直接回车就能够进入mysql数据库。然后通过 show databases; 就可以查看当前的所有数据库。接下来为了确保数据库的安全性和正常运转对数据库进行初始化操作。这个初始化操作涉及下面5个步骤。(1)安装验证密码插件。(2)设置root管理员在数据库中的专有密码。(3)随后删除匿名账户并使用root管理员从远程登录数据库以确保数据库上运行的业务的安全性。(4)删除默认的测试数据库取消测试数据库的一系列访问权限。(5)刷新授权列表让初始化的设定立即生效。对于上述数据库初始化的操作步骤在下面的输出信息旁边我做了简单注释。rootubuntu-virtual-machine:~# mysql_secure_installationSecuring the MySQL server deployment.Connecting to MySQL using a blank password.VALIDATE PASSWORD PLUGIN can be used to test passwordsand improve security. It checks the strength of passwordand allows the users to set only those passwords which aresecure enough. Would you like to setup VALIDATE PASSWORD plugin? # 要安装验证密码插件吗?Press y|Y for Yes, any other key for No: N # 这里我选择NPlease set the password for root here.New password: # 输入要为root管理员设置的数据库密码Re-enter new password: # 再次输入密码By default, a MySQL installation has an anonymous user,allowing anyone to log into MySQL without having to havea user account created for them. This is intended only fortesting, and to make the installation go a bit smoother.You should remove them before moving into a productionenvironment.Remove anonymous users? (Press y|Y for Yes, any other key for No) : y # 删除匿名账户Success.Normally, root should only be allowed to connect fromlocalhost. This ensures that someone cannot guess atthe root password from the network.Disallow root login remotely? (Press y|Y for Yes, any other key for No) : N # 禁止root管理员从远程登录这里我没有禁止... skipping.By default, MySQL comes with a database named test thatanyone can access. This is also intended only for testing,and should be removed before moving into a productionenvironment.Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y # 删除test数据库并取消对它的访问权限- Dropping test database...Success.- Removing privileges on test database...Success.Reloading the privilege tables will ensure that all changesmade so far will take effect immediately.Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y # 刷新授权表让初始化后的设定立即生效Success.All done!检查mysql服务状态systemctl status mysql显示如下结果说明mysql服务运行是正常的再次用mysql -u root -p命令Enter password:处输入刚设置的密码回车就能够进入mysql数据库。使用 use mysql; 命令打开mysql命名的数据库显示当前数据库的表show tables; 查询user表里的数据select * from user;(user表里是mysql数据库的所有账户信息)现在配置mysql允许远程访问首先编辑 /etc/mysql/mysql.conf.d/mysqld.cnf 配置文件vim /etc/mysql/mysql.conf.d/mysqld.cnf注释掉bind-address 127.0.0.1保存退出然后进入mysql数据库执行授权命令mysql -u root -pmysql grant all on *.* to root% identified by 你的密码 with grant option;mysql flush privileges; # 刷新权限mysql exit然后执行exit命令退出mysql服务再执行如下命令重启mysqlsystemctl restart mysql现在Windows下可以使用Navicat图形化工具远程连接Ubuntu下的MySQL数据库输入刚授权远程权限的密码。这里顺便再分享下Navicat for MySQL 10.1.7安装包OK到这里Ubuntu18.04下安装MySQL已经完成了。操作过程中我遇到了以下错误E: 无法获得锁 /var/lib/dpkg/lock-frontend - open (11: 资源暂时不可用)E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
