rm -rf /etc/udev/rules.d/70-persistent-net.rules
*************************************
CentOS 6.X
清空防火墙
iptables -F
iptables -X
service iptables save
service iptables restart
CentOS 7.6 关闭防火墙
#查看防火墙状态
systemctl status firewalld.service
#关闭运行的防火墙
systemctl stop firewalld.service
#禁止防火墙服务器，保证重新启动服务器之后防火墙还是关闭状态
systemctl disable firewalld.service
#安装vim命令
yum install -y vim
vim /etc/selinux/config
SELINUX=disabled
保存后重启： init 6
********************************
mysql 5.1.52关联软件
yum install -y perl-DBI
yum install -y perl-DBD-MySQL
yum install -y unixODBC
yum install -y openssl-devel
yum install -y perl-Time-HiRes.x86_64
yum install -y perl-TermReadKey
rpm -qa|grep mysql #查看系统中是否有mysql相关的软件
rpm -qa|grep mariadb
rpm -e --nodeps mariadb-libs-1:5.5.60-1.el7_5.x86_64 #卸载系统中已有mysql相关的软件
软件在服务器上的目录：/var/soft
cd /var/soft
rpm -ivh mysql-libs-5.1.52-1.el6_0.1.x86_64.rpm
rpm -ivh mysql-5.1.52-1.el6_0.1.x86_64.rpm
rpm -ivh mysql-server-5.1.52-1.el6_0.1.x86_64.rpm
rpm -ivh mysql-bench-5.1.52-1.el6_0.1.x86_64.rpm
rpm -ivh mysql-connector-odbc-5.1.5r1144-7.el6.x86_64.rpm
rpm -ivh mysql-devel-5.1.52-1.el6_0.1.x86_64.rpm
rpm -ivh mysql-test-5.1.52-1.el6_0.1.x86_64.rpm
rpm -ivh innotop-1.9.1-1.el6.noarch.rpm
#启动mysql:
service mysqld start
# 进入mysql命令
mysql
↓
# 设置root密码 （忘记密码请参照：https://blog.csdn.net/jerry010101/article/details/88586234）
grant all privileges on *.* to root@'%'identified by 'Idc113!@#' with grant option;
↓
#刷新权限
FLUSH PRIVILEGES;
↓
# 设置root@localhost的密码 mysqladmin -u root password 密码
mysqladmin -u root password 'Idc113!@#'
↓
# 设置开机启动
chkconfig mysqld on
#重启mysql
service mysqld restart