dnspod.cn提供的免费服务支持把国际顶级域名(如abc.com/net/cc)绑定到自己家宽带的动态IP上面,从此告别花生壳,3322.org。这个工具每隔一段时间在网关设备上运行一次,一旦发现宽带ip地址发生变化,就会向服务器发出更新请求。
请注意:
- 此客户端代码可运行在家庭内网的任意设备上
- 此客户端需要linux运行环境
- 此客户端需要python语言解释器执行(一般来说,各种linux发行版均默认自带python解释器)
- 使用此程序,需要掌握以下技能:shell基本操作, linux文本编辑器(vi/nano)基本操作
安装方法:#!/user/bin/env pythoncoding=utf-8
import urllib, urllib2, json
import socket, struct, fcntl
import sys, os, time
url = "https://dnsapi.cn/Record.Ddns"
使用你自己的设置更改以下内容
account = "account@email.com" # 你在dnspod.cn注册的邮件地址
password = "password" # 你在dnspod.cn注册密码
domain_id = "12345678" # 你的域名id (如何获取请查看本文最下方)
sub_domain = "hostname" # 你要更新的主机头名,例如 hostname.mydomain.com
record_id = "12345678" # 此主机头名对应的记录id (如何获取请查看本文最下方)
record_line = "默认" # dnspod.cn中为此记录指定的线路
wan_ifname = "ppp0" # 连接 Internet 的网卡设备名(对于拨号上网的路由器来说,一般为ppp0,内网的其他机器使用链接局域网的网卡名称即可如eth0)
使用你自己的设置更改以上内容
prev_file = "/dev/shm/wan.prev"
log_file = "/var/log/dnspod.log"
def get_ipaddress(interface):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
ip = socket.inet_ntoa(fcntl.ioctl(
s.fileno(),
0x8915,
struct.pack("256s", interface[:15])
)[20:24]
) if ip.find("192.") == 0:url = "http://1111.ip138.com/ic.asp"
response = urllib.urlopen(url)
reply = response.read()
import re
reg = re.compile(r"\d+.\d+.\d+.\d+")
ip = reg.findall(reply)[0] return ip
def print_log(text):
log = open(log_file, "a")
timestamp = time.strftime('%Y-%m-%d %H:%M:%S')
log.write(timestamp + " | " + text + "\n")
log.close()
values = {
"login_email": account,
"login_password": password,
"domain_id": domain_id,
"sub_domain": sub_domain,
"record_id": record_id,
"record_line": record_line,
"format": "json"
}
changed = False
current_ip = get_ipaddress(wan_ifname)
prev_ip = ""
if not os.path.exists(prev_file):
prev = open(prev_file, "a")
prev.write(current_ip)
prev.close()
changed = True
else:
prev = open(prev_file, "r")
prev_ip = prev.readline().strip()
prev.close()
if prev_ip != current_ip:prev = open(prev_file, "w")
prev.write(current_ip)
prev.close()
changed = True if changed:
print_log("IP address changed to " + current_ip)
data = urllib.urlencode(values)
req = urllib2.Request(url, data)
response = urllib2.urlopen(req)
content = response.read()
myinfo = json.loads(content)
if myinfo["status"]["code"] == "1": print_log("dnspod DDNS updated")
print_log("IP address not changed yet")
2. 使用您自己的设置更改源代码中的变量(请注意代码中的注释)3. 将dnspod.py保存到linux服务器中/bin(使用winscp或者在vi/nano中粘贴)4. 执行以下命令:chmod +x /bin/dnspod.py 5. 执行以下命令进行测试/bin/dnspod.py 6. 执行以下命令检查程序输出tail /var/log/dnspod.log 7. 请确认程序输出了 “IP address changed to xx.xx.xx.xx, dnspod DDNS updated” 即可8. 执行以下命令打开linux中的计划任务描述文件crontab -e 9. 在cron的任务文件描述中加入以下一行内容并保存,此后每隔10分钟将自动执行此程序一次/10 * /bin/dnspod.py 10. 完成!
如何获取domain_id及record_id?
- 请复制以下代码并保存到 /bin/dnspod_info.py
#!/usr/bin/env python
import urllib
import urllib2
import json
import sys
if len(sys.argv) < 3:
print("usage: dnspodinfo <login email> <password>")
sys.exit()
url = "https://dnsapi.cn/Domain.List"
values = {
"login_email": sys.argv[1],
"login_password": sys.argv[2],
"format": "json"
}
data = urllib.urlencode(values)
req = urllib2.Request(url, data)
response = urllib2.urlopen(req)
content = response.read()
myinfo = json.loads(content)
for domain in myinfo["domains"]:
url1 = "https://dnsapi.cn/Record.List"
domain_id = str(domain["id"])
domain_name = domain["name"]
print("Domain: " + domain_name + " (id = " + domain_id + ")")
values1 = {
"login_email": values["login_email"],
"login_password": values["login_password"],
"domain_id": domain_id,
"format": "json"
} data1 = urllib.urlencode(values1)
req1 = urllib2.Request(url1, data1)
response1 = urllib2.urlopen(req1)
content1 = response1.read()
myinfo1 = json.loads(content1)
for record in myinfo1["records"]:r_id = record["id"]
r_name = record["name"]
r_value = record["value"]
r_ttl = record["ttl"]
r_line = record["line"]
r_enable = record["enabled"]
r_type = record["type"]
print(" " + r_id + ": " + r_name + "." + domain_name + " -> " + \
r_value + " type=" + r_type + " ttl=" + r_ttl + " line=" + r_line + \ " enabled=" + r_enable + " timestamp=" + record["updated_on"])
2. 输入命令,标记可执行chmod +x /bin/dnspod_info.py 3. 输入以下命令并执行, 注意把email地址和密码换成你在dnspod自己注册的/bin/dnspod_info.py account@email.com password 4. 查看程序输出,如下图所示
5. 图中黄框标出的即为domain_id, 蓝框标出的是头名为ihome的主机记录的record_id
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