centos8版本快速部署nginx,mysql安装

星期二, 2020-01-21 | Author: Lee | JAVA-and-J2EE, linux | 153 views

0.centos8版本快速部署nginx,mysql安装

1.系统预检 查看版本

cat /etc/redhat-release

初始系统为8.0版本,执行更新后为8.1:

yum update
cat /etc/redhat-release

CentOS Linux release 8.1.1911 (Core)

2.前置安装需要的包文件

yum install wget
yum install pcre
yum install pcre-devel
yum install openssl*
 
yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5-devel libidn openssl openssl-devel openldap openldap-devel nss_ldap openldap-clients make
 
yum -y install gd gd-devel
 
 
/usr/sbin/groupadd www
/usr/sbin/useradd -s /sbin/nologin -g www www -M
ulimit -SHn 65535
mkdir -p /ia/data/installsoft
cd /ia/data/installsoft
 
wget http://nginx.org/download/nginx-1.16.1.tar.gz
tar xzvf nginx-1.16.1.tar.gz
cd nginx-1.16.1/
 
 
./configure --user=www --group=www --prefix=/usr/local/webserver/nginx --with-http_stub_status_module --with-http_ssl_module --with-pcre --with-http_realip_module --with-http_image_filter_module --with-http_v2_module
 
make
make install
/usr/local/webserver/nginx/sbin/nginx -V

启动 /usr/local/webserver/nginx/sbin/nginx

简要的配置开启

user = www www;
//开启gzip压缩
gzip  on;
//关闭Nginx版本号显示
server_tokens off;
//增加最大上传文件大小
client_max_body_size 8M;

3.升级到centos8版本后解决内存不足的问题

虚拟内存的话,也就是物理内存的2倍左右,这里设置2g的虚拟内存

free -m 查看内存,根据情况设置内存,

dd if=/dev/zero of=/opt/swap bs=1M count=2048
 
chmod 600 /opt/swap
 
mkswap /opt/swap
 
swapon /opt/swap
 
###或者快速一种
sudo fallocate -l 2G /tmp/swapfile
sudo chmod 600 /tmp/swapfile
sudo mkswap /tmp/swapfile
sudo swapon /tmp/swapfile

最后查看内存设置情况
free -m

4.安装mysql

centos8下默认的yum源就是mysql8的版,可以直接yum安装,也可以到mysql官网下载最新的导入安装

安装MySQL8及对应工具:
yum install mysql mysql-server
 
启动MySQL服务器:
 
systemctl start mysqld
 
然后是初始化MySQL,命令如下:
mysql_secure_installation

启动操作及新增用户设置等

systemctl start mysqld #启动MySQL
systemctl stop mysqld #关闭MySQL
systemctl restart mysqld #重启MySQL
systemctl status mysqld #查看MySQL运行状态
systemctl enable mysqld #设置开机启动
systemctl disable mysqld #关闭开机启动
 
###输入上面安装的root密码,创建新用户及赋权
mysql -uroot -p
use mysql;
select host,user from user;
 
###此命令在5.7版本是可以的,在8.x系列需要分两步才行:
 
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'localhost' IDENTIFIED BY '123456';
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'127.0.0.1' IDENTIFIED BY '123456';
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'%' IDENTIFIED BY '123456';
 
####mysql8.0创建用户及赋权
create user 'admin'@'localhost' identified by '123456';
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'localhost' WITH GRANT OPTION;
 
create user 'admin'@'127.0.0.1' identified by '123456';
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'127.0.0.1' WITH GRANT OPTION;
 
create user 'admin'@'%' identified by '123456';
GRANT ALL PRIVILEGES ON *.* TO 'admin'@'%' WITH GRANT OPTION;
 
select host,user from user;
FLUSH PRIVILEGES;
 
 
 
 
vi /etc/my.cnf
[mysqld]
lower_case_table_names=1

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文章作者: Lee

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