一.JDK
# jdk
yum search java | grep -i --color JDK
yum install java-1.8.0-openjdk java-1.8.0-openjdk-devel
cd /usr/lib/jvm/
cd java-1.8.0-openjdk-1.8.0.161-0.b14.el7_4.x86_64/
# 配置环境变量
vim /etc/profile
# 在文件最后面添加如下三行内容（具体路径根据自己的实际情况确定）export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.161-0.b14.el7_4.x86_64export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$PATH:$JAVA_HOME/bin
# 使配置文件即时生效source /etc/profile
# 检查jdk是否安装按成java -version
二.MySQL
# mysqlrpm -Uvh /get/mysql-community-release-el7-5.noarch.rpmyum repolist enabled | grep "mysql.*"yum -y install mysql-community-server
# 常用操作命令systemctl enable mysqldsystemctl start mysqldsystemctl status mysqld.service
三.iptables
# iptables
# 停止firewalldsystemctl stop firewalld# 屏蔽firewalldsystemctl mask firewalld
yum install iptables-services
# 启用iptablessystemctl enable iptables
systemctl start iptablesservice iptables save
# 配置iptables规则vim /etc/sysconfig/iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT# 重启iptablessystemctl restart iptables
四.Nginx
# nginxrpm -ivh /packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpmyum info nginxyum install nginx
五.Redis
# redisyum install epel-release && yum install rediscp /etc/redis.conf /etc/redis.conf.back
# 配置redis密码（强烈建议）vim /etc/redis.conf
# 在配置文件中找到requirepass，将前面的#号注释放开，后面填上自己的redis密码，保存文件，重启redis即可requirepass passwordservice redis start
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