CentOS7之常用服务

摘要：开发者工具安装选择安装相关库的头文件源命令行需要源磁盘大小查看内存，实用磁盘使用网络需要源语言安装安装然后你需要把以下内容粘贴到文件中安装安装然后你需要把以下内容粘贴到文件中文件传输安

# 安装gcc, g++, make, git, svn
yum clean all
yum groups mark install "Development Tools"
yum groups mark convert "Development Tools"
yum groupinstall "Development Tools"

#选择安装(相关库的头文件)
yum install python-devel libffi-devel zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libxslt-devel libxml2-devel libjpeg-turbo-devel

sudo yum install epel-release

#需要EPEL源

sudo yum install ncdu  #磁盘大小查看
sudo yum install htop atop #内存，CPU实用
sudo yum install iotop #磁盘使用IO
sudo yum install iftop #网络

#需要EPEL源

sudo yum install nodejs

pip

#安装pip
$ wget https://bootstrap.pypa.io/get-pip.py
$ python ./get-pip.py

pyenv

#安装pyenv
curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash

>然后你需要把以下内容粘贴到[~/.bash_profile]文件中

# pyenv
PYENV_ROOT="$HOME/.pyenv"
PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"

pyenv-virtualenvwrapper

#安装pyenv-virtualenvwrapper
git clone https://github.com/yyuu/pyenv-virtualenvwrapper.git ~/.pyenv/plugins/pyenv-virtualenvwrapper

#安装virtualenvwrapper
sudo pip install virtualenvwrapper

>然后你需要把以下内容粘贴到~/.bash_profile文件中

#pyenv virtualenvwrapper
pyenv virtualenvwrapper_lazy

# 安装vsftpd
yum install vsftpd

#设置开机启动vsftpd ftp服务
chkconfig vsftpd on

# 创建nologin用户
useradd -d /home/ftp -g ftp -s /sbin/nologin ftpuser -p password

修改以下内容/etc/vsftpd/vsftpd.conf

{
    # 禁用匿名登录
    anonymous_enable=NO
    # 设定支持ASCII模式的上传和下载功能
    ascii_upload_enable=YES
    ascii_download_enable=YES
    
    只允许刚创建的ftpuser登录FTP
    userlist_enable=YES
    userlist_deny=NO
}

#修改 /etc/vsftpd/user_list
注释所有帐户，添加ftpuser

#重启服务
service vsftpd restart                        

#登录
ftp dean@IP地址

//下载nginx到/tmp
curl -o /tmp/nginx.rpm http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm 

//安装rpm, 此rpm包含yum配置信息
rpm -ivh /tmp/nginx.rpm  

//安装nginx
yum install nginx 

//2选1, 启动nginx服务, 此时访问公有IP, 就能看到欢迎页面了
systemctl start nginx
service nginx start 

//配置文件位置/etc/nginx/nginx.conf    

安装

#1.创建/etc/yum.repos.d/mongodb-org-3.0.repo文件内容如下:
[mongodb-org-3.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.0/x86_64/
gpgcheck=0
enabled=1

#2.运行
sudo yum install -y mongodb-org

安装

sudo yum update

wget http://repo.mysql.com//mysql57-community-release-el7-8.noarch.rpm
sudo rpm -ivh mysql57-community-release-el7-8.noarch.rpm
sudo yum update

sudo yum install mysql-server

启动

sudo systemctl start mysqld

临时密码

sudo grep "temporary password" /var/log/mysqld.log

安全配置

sudo mysql_secure_installation

用户与表权限

 create database testdb;
 create user "testuser"@"localhost" identified by "password";
 grant all on testdb.* to "testuser" identified by "password";

重置密码

sudo systemctl stop mysqld
sudo systemctl set-environment MYSQLD_OPTS="--skip-grant-tables"
sudo systemctl start mysqld

mysql -u root

use mysql;
update user SET PASSWORD=PASSWORD("password") WHERE USER="root";
flush privileges;
exit

sudo systemctl stop mysqld
sudo systemctl unset-environment MYSQLD_OPTS
sudo systemctl start mysqld

#安装
sudo pip install pyOpenSSL
sudo pip install lxml
sudo pip install scrapyd

这个用起来感觉要简单一些，而且目前有15,672颗星, 相比第一种拥有资源占用查看，看起来要舒服的多

正常启动Express项目，也就是
cd <项目目录>
npm start 或者 node main.js

使用pm2启动
cd <项目目录>
pm2 start npm --name="express" -- start

python命令:
scrapyd --pidfile /var/log/scrapyd/twistd.pid -l /var/log/scrapyd/logs/scrapyd.log

pm2命令:
pm2 start scrapyd --interpreter python --name=scrapyd -- --pidfile "/var/log/scrapyd/twistd.pid" -l "/var/log/scrapyd/logs/scrapyd.log"