【Linux】Centos7部署基础学习记录

Centos7部署基础学习记录 Centos7下jdk、mysql、iptables、nginx、redis安装简介 一.JDK

1.1 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/

1.2 配置环境变量
 

vim /etc/profile

1.3 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_64 
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar 
export PATH=$PATH:$JAVA_HOME/bin

1.4 使配置文件即时生效

source /etc/profile

1.5 检查jdk是否安装按成

java -version

二.MySQL

2.1 mysql

rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm 
yum repolist enabled | grep "mysql.*" 
yum -y install mysql-community-server

2.2 常用操作命令

systemctl enable mysqld 
systemctl start mysqld 
systemctl status mysqld.service

三.iptables

3.1 iptables
3.2 停止

firewalld systemctl stop firewalld

3.4 屏蔽

firewalld systemctl mask firewalld
yum install iptables-services

3.3 启用

iptables systemctl enable iptables
systemctl start iptables service iptables save

3.5 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 

3.6 重启iptables 

systemctl restart iptables

四.Nginx

4.1 nginx

rpm -ivh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm 
yum info nginx 
yum install nginx

五.Redis

4.2 redis

yum install epel-release && yum install redis cp /etc/redis.conf /etc/redis.conf.back

4.3 配置redis密码（强烈建议）

vim /etc/redis.conf

4.4 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 password 
service redis start