Table of Contents
linux 生产环境搭建,linux环境搭建
登录远程MySQL
给MySQl非root账户分配权限
MySQL下查看最大连接数
修改最大连接数
免密码登录Linux服务器
文件重命名
安装JDK
配置环境变量
centos直接yum安装nginx
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linux 生产环境搭建,linux环境搭建

Jun 13, 2016 am 08:52 AM
linux

linux 生产环境搭建,linux环境搭建

Linux基础命令杂记  

今天又一次搞Linux生产环境搭建。这是种步骤很多,很繁琐而且又不得不做的事情。虽然做过很多次,但还是有很多步骤、命令不记得,每一次到处找资料很麻烦,于是将一些步骤记下,以便查找。

登录远程MySQL

1 mysql -h 192.168.1.100 -u root -p

给MySQl非root账户分配权限

给账号user1 密码为123456 的用户testDB数据库的所有表的select,insert,update,delete权限:

1 grant select,insert,update,delete on testDB.* to user1@'%' identified by '123456';

刷新权限:

1 flush privileges;

MySQL下查看最大连接数

1 show variables like 'max_connections';

修改最大连接数

1 vi /etc/my.cnf

找到max_connections=100(如果没有则添加),改为:

1 max_connections=1500

免密码登录Linux服务器

用自己的电脑免密码登录Linux服务器(自己是Windows系统)

在windows上

用cmd命令执行:

1 ssh-keygen -t rsa

连敲3下回车,可以在C盘用户目录下的.ssh文件夹下看到,

id_rsa是私钥,id_rsa.pub是公钥。

在linux上

执行,

1 ssh-keygen -t rsa

 连敲3下回车,然后cd .ssh/ 可以看到,

1 id_rsa  id_rsa.pub

创建用于保存免登录主机生成的公钥,authorized_keys

1 touch authorized_keys

将他的权限改为600

1 chmod 600 ~/.ssh/authorized_keys

最后将windows电脑的id_rsa.pub公钥写到authorized_keys中,保存即可。

文件重命名

下载好的JDK文件名成这个样子jdk-8u65-linux-x64.rpm\?AuthParam\=1445848743_f162eddc392f630f3b14bcded3bc3f19将它改为jdk-8u65-linux-x64.rpm。命令如下:

1 mv jdk-8u65-linux-x64.rpm\?AuthParam\=1445848743_f162eddc392f630f3b14bcded3bc3f19 jdk-8u65-linux-x64.rpm

安装JDK

下载JDK

1 wget http://download.oracle.com/otn-pub/java/jdk/8u65-b17/jdk-8u65-linux-x64.rpm?Auth Param=1445848743_f162eddc392f630f3b14bcded3bc3f19

下载好重命名成:jdk -8u65-linux-x64.rpm,给777权限

1 `chmod 777 jdk-8u65-linux-x64.rpm`

安装

1 rpm -ivh jdk-8u65-linux-x64.rpm

查看

1 java -version

配置环境变量

修改系统环境变量文件

1 vi /etc/profile

向文件里面追加以下内容:

1 2 3 4 5 JAVA_HOME=/usr/java/jdk1.8.0_65 JRE_HOME=/usr/java/jdk1.8.0_65 PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib export JAVA_HOME JRE_HOME PATH CLASSPATH

使修改立即生效:

1 source /etc/profile

centos直接yum安装nginx

处理源:

1 rpm -ivh http://nginx.org/packages/centos/6/noarch/RPMS/nginx-release-centos-6-0.el6.ngx.noarch.rpm

查看yum的nginx信息:

1 yum info nginx

安装:

1 yum install nginx

启动nignx:

1 service nginx start

输入主机地址查看:

http://192.168.1.100/

看到,

1 2 3 4 5 6 7 8 Welcome to nginx!   If you see this page, the nginx web server is successfully installed and working. Further configuration is required.   For online documentation and support please refer to nginx.org. Commercial support is available at nginx.com.   Thank you for using nginx.

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