1. 查看ip
ip addr
ifconfig
如果此命令不能用
yum install net-tools`
2. 安装命令
Ubuntu用apt，centos用yum
3. 无法联网
测试是否联网ping www.baidu.com
vi /etc/resolv.conf (添加 nameserver 114.114.114.114)
若还是无法联网
vi /etc/sysconfig/network-scripts/ifcfg-xx 将改ONBOOT=yes， 再重启网络服务
service network restart
4. 命令行终端远程连接虚拟机
将虚拟机的网络设置改为桥接，选择wifi网卡
ssh root@192.108.0.108
命令行终端可以用xshell，MobaXterm，putty等
5. 替换默认源
http://mirrors.163.com/.help/centos.html
1.备份/etc/yum.repos.d/CentOS-Base.repo
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
2.下载对应版本repo文件, 放入/etc/yum.repos.d/
cd /etc/yum.repos.d
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo若没有wget命令
curl http://mirrors.163.com/.help/CentOS7-Base-163.repo -o CentOS7-Base-163.repo
yum clean all
yum makecache
安装所需要的软件
yum install wget
yum install vim
yum install gcc
yum install kernel-devel
yum install kernel-headers
6. 安装mysql数据库
1.CentOS7默认安装mariadb数据库，将其删除
yum remove mariadb-libs.x86_64
2.下载Mysql源
wget https://repo.mysql.com/mysql57-community-release-el7-8.noarch.rpm
3.安装源
yum localinstall mysql57-community-release-el7-8.noarch.rpm
4.安装MySQL
yum install mysql-community-server
5.启动mysql
sudo service mysqld start/restart/stop
6.默认密码
cat /var/log/mysqld.log | grep password
7.登陆mysql
mysql -uroot -p
8.更改密码
mysql> SET PASSWORD = PASSWORD('123456');
现在是不允许设置简单密码的，需要设置以下两个参数
mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1;
7. 安装python
1. yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel mysql-devel gcc gcc-devel python-devel
2. wget "https://www.python.org/ftp/python/3.5.0/Python-3.5.0.tgz"
3. tar -zxvf Python-3.5.0.tgz
4. mkdir /usr/local/python3
5. Python-3.5.0/configure --prefix=/usr/local/python3
6. make && make install
7. ln -s /usr/local/python3/bin/python3 /usr/bin/python3
更改pip源
创建或修改文件：~/.pip/pip.conf
[global]
index-url = https://pypi.tuna.tsinghua.edu.cn/simple
国内常见源
阿里云 http://mirrors.aliyun.com/pypi/simple/
豆瓣(douban) http://pypi.douban.com/simple/
清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/
中国科学技术大学 http://pypi.mirrors.ustc.edu.cn/simple/
安装pip3 和 virtualenv
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
pip3 install virtualenv
ln -s /usr/local/python3/bin/virtualenv /usr/bin/virtualenv
virtualenv -p /usr/bin/python3 test_env
source ~/wechat_env/bin/activate 启动虚拟工作空间