{ 服务器维护 }

  • 设置linux开机启动脚本自动联网认证

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    由于学校的网络需要认证上网,每次服务器上网都用个人账号认证，因此需要配置下开机启动脚本使其自动上网。(其实就是没钱惹的祸)

    一、上网认证的脚本

    先安装依赖:

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    sudo apt-get install python-pip
    sudo pip3 install schedule 
    sudo pip3 install argparse

    task.py
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    import schedule
    import time
    from urllib.parse import quote, unquote
    import requests
    import argparse

    def job(User,Pass):
        base_url = 'http://auth.dlut.edu.cn'
        try:
            resp = requests.get(base_url)
            print("conneting...")
        except Exception:
            #print("Already connected...")
            return
        query = resp.text[resp.text.find('wlanuserip'):resp.text.find('</script>')]
        query_str = quote(quote(query))

        url = base_url + '/eportal/InterFace.do?method=login'
        data = {
            'userId': User,  # username 1
            'password': Pass,  # password
            'service': '',  # empty
            'queryString': query_str,
            'operatorPwd': '',  # empty
            'operatorUserId': '',  # empty
            'validcode': '',  # empty
        }
        headers = {'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'}
        resp = requests.post(url, data, headers=headers)
        print(resp.status_code)
        print(resp.text)
    parser = argparse.ArgumentParser(description='connect to dlut')
    parser.add_argument('-u',type=str, help='user name')
    parser.add_argument('-p',type=str, help='user name')
    args = parser.parse_args()
    User = args.u
    Pass = args.p

    job(User, Pass)
    schedule.every(300).minutes.do(job,User,Pass)

    while True:
        schedule.run_pending()
        time.sleep(300)

    其主要作用是进行认证链接,命令行调用格式为:

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    python3 task.py -u username -p passwd

    username是认证用户名，passwd是对应密码

    二、编写bash脚本调用登陆脚本

    connect.sh
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    #!/bin/bash
    python3 /home/sie/netset/task.py -u username  -p passwd &
    ``` 
    添加可执行权限:
    ``` bash
    chmod +x connect.sh

    将connect.sh和task.py都放到同一目录下 设为path_to_sp

    三、在/etc/rc.local里添加开机启动脚本命令

    • 配置rc-local.service服务使其能够执行开机启动脚本 参考教程

    • root权限创建/etc/rc.local文件并写入开机启动的脚本

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      #!/bin/sh -e
      # 
      # rc.local
      #
      # This script is executed at the end of each multiuser runlevel.
      # Make sure that the script will "exit 0" on success or any other
      # value on error.
      #
      # In order to enable or disable this script just change the execution
      # bits.
      #
      # By default this script does nothing.
      su -s /bin/sh sie -c"path_to_sp/connect.sh"
      exit 0

    其中path_to_sp为connect.sh和task.py的目录

    至此开机启动配置结束。

    以前一直想搞定开机启动脚本的事情，但是总不得其要点，特此记录，以后还要多多了解原理才是。