DDNS,解决ADSL拨号,内网服务器无法提供稳定的互联网ip问题,使用域名绑定动态ip
个人博客链接
搭建一个自己的DDNS服务器 – Dark Blog (darkghost.life)
前置条件
1 拥有公网地址,查看路由器wan口地址是否是公网地址
2 在godaddy上注册一个自己的域名
3 海外主机
申请godaddy的api-key,这个域名已经被污染了,所以,嗯….需要魔法上网
https://developer.godaddy.com/keys
复制保存自己的密钥
godaddy API文档
https://developer.godaddy.com/doc/endpoint/domains
格式如下,这里的URL需要替换成你自己的域名
curl -X 'PUT' 'https://api.godaddy.com/v1/domains/darkghost.life/records/A/二级域名' -H 'accept: application/json' -H 'Content-Type: application/json' -H 'Authorization: sso-key key:secret' -d '[ { "data": "1.1.1.1", "port": 65535, "priority": 0, "protocol": "string", "service": "string", "ttl": 600, "weight": 0 } ]'
使用python来改写下代码,设计思路如下
服务端使用海外主机做socket侦听客户机发送的数据和调用godaddy的api添加域名解析,国内api.godaddy.com这个域名已被污染
客户端定期连接服务器的socket,发送要添加解析的域名
服务端验证客户端合法性和socket的源ip是否发生变动,变动后调用API更新解析记录
server端代码
#!/usr/bin env python #-*-coding:utf-8-*- import requests,socket,logging,os,sys,json def logger(): log_name = base_dir+'/ddns.log' logger = logging.getLogger() fh = logging.FileHandler(log_name) formater = logging.Formatter("%(asctime)s - %(filename)s[line:%(lineno)d] - %(levelname)s: %(message)s") fh.setFormatter(formater) logger.setLevel(logging.WARNING) logger.addHandler(fh) return logger def sock(): host = '0.0.0.0' s = socket.socket(socket.AF_INET,socket.SOCK_STREAM) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) address = ('address',port) s.bind(address) s.listen(200) while True: try: conn,addr = s.accept() client_data = conn.recv(1024) data = json.loads(client_data.decode('utf-8')) key,domain = data['key'],data['domain'] print(key,domain) except Exception as e: log.warning(e) continue finally: conn.close() if key=='验证客户端合法性自定义key': newhost,port = addr if newhost != host: host = newhost ddns(host,domain) else: pass def ddns(host,domain): try: url = 'https://api.godaddy.com/v1/domains/darkghost.life/records/A/{}'.format(domain) headers = { 'accept': 'application/json', 'Content-Type': 'application/json', 'Authorization': 'sso-key yourkey:yoursecret' } data = [ { "data": host, "port": 65535, "priority": 0, "ttl": 600, "weight": 0 } ] response = requests.put(url, json=data, headers=headers) log.warning(response) except Exception as e: log.warning(str(e)) if __name__ == '__main__': base_dir = os.path.dirname(os.path.realpath(sys.argv[0])) log = logger() sock()
客户端代码
#!/usr/bin env python #-*-coding:utf-8-*- import socket,time,logging,os,sys def logger(): log_name = base_dir+'/ddns.log' logger = logging.getLogger() fh = logging.FileHandler(log_name) formater = logging.Formatter("%(asctime)s - %(filename)s[line:%(lineno)d] - %(levelname)s: %(message)s") fh.setFormatter(formater) logger.setLevel(logging.WARNING) logger.addHandler(fh) return logger def client(data): while True: try: s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) s.settimeout(3) s.connect(('serveraddress',port)) s.sendall(data.encode()) except Exception as e: log.warning(str(e)) time.sleep(10) if __name__ == '__main__': base_dir = os.path.dirname(os.path.realpath(sys.argv[0])) data = '{"key":"自定义合法客户端key","domain":"二级域名"}' log = logger() client(data)
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