open dns 已阵亡，导致 dnsip 无法正常工作，ddns更新失败

ciasdmxhxjjpd@c

RT，

最近 发现重启路由后，ddns更新老是失败，查看了下流程，显示 unkonwn，说明 dns 解析失败了！

楼主，用的是 通过 dnsip 更新 cf ddns，https://bbs.hassbian.com/thread-16149-1-1.html
改成运营商的dns，解析不稳定，也存在污染。

所以，想了下，用命令行吧，直接从vps隧道获取解析地址吧，vps的dns 绑定在5300

sensor: 
  - platform: command_line
    name: myip
    command: "python /config/myip.py"
    scan_interval: 300
    
  - platform: command_line
    name: yourdomain
    command: "dig yourdomain @127.0.0.1 -p 5300 +short"
    scan_interval: 120

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因，楼主是通过光猫拨号，n1旁路路由，所以，要通过 python 脚本获取 光猫拨号之后的 pppoe wanip（华为hs8145x6），当然，你也可以通过其他方式，楼主主要是不想泄露自己的ip。

import os
import pickle
import requests
import re
import base64
import urllib.parse
import codecs

DOMAIN = 'http://192.168.1.1:8080/'
USERNAME = 'user'
PASSWORD = 'password'
HEADERS = {
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.60 Safari/537.36',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
    'Accept-Encoding': 'gzip, deflate'
}


# get random
def get_random(session):
    cnt = session.get(url=DOMAIN + 'asp/GetRandCount.asp').content.decode('utf-8-sig')
    return cnt


# get login cookie
def get_cookie(session, cnt):
    payload = {'UserName': USERNAME, 'PassWord': base64.b64encode(str.encode(PASSWORD)), 'Language': 'chinese',
               'x.X_HW_Token': cnt}
    save_cookies(session.post(url=DOMAIN + 'login.cgi', data=payload).cookies, 'cookie.txt')


# get pppoe wan ip
def get_wanip(session):
    x = session.get(url=DOMAIN + 'html/bbsp/common/wan_list.asp', cookies=load_cookies('cookie.txt')).content.decode(
        'utf-8-sig')
    wanips = re.findall(
        'var PPPWanList = new Array\(new WanPPP\("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.1","(.*)","(.*)","(.*)","(.*)","(.*)","(.*)","your adsl account"',
        x)
    return wanips


def save_cookies(cookiejar, filename):
    with open(filename, 'wb') as f:
        pickle.dump(cookiejar, f)


def load_cookies(filename):
    with open(filename, 'rb') as f:
        return pickle.load(f)


session = requests.Session()
session.headers = HEADERS

if not os.path.isfile('cookie.txt'):
    get_cookie(session, get_random(session))

wanip = get_wanip(session)

if not wanip:
    get_cookie(session, get_random(session))
    wanip_tmp = get_wanip(session)
    unescaped = urllib.parse.unquote(wanip_tmp[0][1])
else:
    unescaped = urllib.parse.unquote(wanip[0][1])

raw_bytes = bytes(unescaped, "utf-8")
decoded = codecs.escape_decode(raw_bytes)[0].decode("utf-8")
print(decoded)

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增加上面的支路，是为了确保能100%更新成功。

zxyny1989

谢谢大佬分享。