下載下傳,安裝先檢查系統中是否有mysql ,MariaDB,如有,先解除安裝
rpm -qa | grep mysql
rpm -qa | grep mariadb
如圖,我的系統中存在mariaDB資料,
![](https://img.laitimes.com/img/__Qf2AjLwojIjJCLyojI0JCLicmbw5iM0E2NhV2N0EGZhVDN3AjMmRWOwQDZ5ITZ3UzNkJGN58CX0JXZ252bj91Ztl2Lc52YucWbp5GZzNmLn9Gbi1yZtl2Lc9CX6MHc0RHaiojIsJye.png)
執行解除安裝如有mysql同了解除安裝方法相同
remove mariadb-libs-5.5.52-1.el7.x86_64
安裝依賴環境 ,我們直接使用yum安裝,依次執行
yum install -y perl.x86_64
yum install -y libaio.x86_64
yum install -y net-tools.x86_64
yum install -y libtinfo*
yum install -y libncurses*
下載下傳國内的MySQL安裝包(之是以用國内的是因為下載下傳比較快,下面用的是清華大學的鏡像資源)
wget -P /tmp http://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-common-5.7.31-1.el7.x86_64.rpm
wget -P /tmp http://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-libs-5.7.31-1.el7.x86_64.rpm
wget -P /tmp http://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-client-5.7.31-1.el7.x86_64.rpm
wget -P /tmp http://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-5.7/mysql-community-server-5.7.31-1.el7.x86_64.rpm
然後按照順序安裝mysql的依賴,依次執行
rpm -ivh mysql-community-common-5.7.31-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.31-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.31-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.31-1.el7.x86_64.rpm
重新開機下mysql服務
systemctl restart mysqld.service
檢視mysql服務狀态
systemctl status mysqld.service
檢視下預設的臨時密碼,我的密碼是: >dgp,9q&?ikW
grep 'temporary password' /var/log/mysqld.log
測試登入
mysql -u root -p
然後輸入密碼,登入成功,
修改密碼并開啟遠端連接配接
由于新版本的mysql更新了密碼安全政策,如果一直使用預設密碼,
很多功能都限制,包括修改安全政策,開啟遠端連接配接等功能;
是以還是要先修改密碼,密碼要求有大小寫字母,數字,特殊字元的組合;先登入
mysql -u root -p
然後修改密碼
ALTER USER 'root'@'localhost' IDENTIFIED BY '~1QAZxsw2'
修改允許遠端連接配接
use mysql;
update user set Host = '%' where Host = 'localhost' and User='root';
flush privileges;
開放3306端口開啟3306 端口
firewall-cmd --zone=public --add-port=3306/tcp --permanent
重新開機防火牆
firewall-cmd --reload
檢視防火牆狀态 顯示success 即成功開啟
systemctl status firewalld
檢視指定端口狀态 顯示 success 即端口成功開啟
firewall-cmd --query-port=6379/tcp
之後使用資料庫連接配接工具即可連接配接成功;