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Sergio Ramos
Asked: 2020-03-14 11:33:10 +0800 CST 2020-03-14 11:33:10 +0800 CST

Update my IP using DynDns in Python

  • 772

I am checking a small program to update my IP in DynDns.

What I do is the following:

#!/usr/bin/python
import requests
import json
user = "email"
password = "pass"
checkip = "http://thisisnt.com/api/getRemoteIp.php"
dynupdate = "https://members.dyndns.com/nic/update"
print "starting. Get current IP..."
ipraw = requests.get(checkip)
if ipraw.status_code is not 200:
  raise "Cannot get IP address"
  exit

ip = ipraw.json()['REMOTE_ADDR']
print "Remote IP: " + ip
print "updating..."
# update dyndns
headers = {'user-agent': 'mPythonClient/0.0.3'}
dyn = requests.get(dynupdate, \
              headers=headers, \
              auth=(user, password), \
              params={'hostname': 'xjhdshsdhagsafhg.ddns.net', \
                       'myip': ip, \
                       'wildcard': 'NOCHG', \
                       'mx': 'MX', \
                       })
if dyn.status_code is not 200:
  print "Update failed. HTTP Code: " + str(dyn.status_code)
if "good" in dyn.text:
  print "update successful.."
else:
  print "Update unsuccessful: " + dyn.text.strip()

I think I have put the data and parameters correctly, but the problem is that when I run it the update is not successful:

Unsuccessful update: badauth

My question is: how could I get it to return my correctly updated IP? It always stays at:

print "Update unsuccessful: " + dyn.text.strip()

And what I would like to do is update it with the new IP and print it:

print "update successful.." + ip
python

1 Answers

  1. Best Answer

    As can be deduced from the error returned by the server when making the request ( badauth), the problem is with the authentication method you are using.

    If you take a look at the Dyn documentation , you will see that the use of username and password to authorize requests has been deprecated , and therefore you have to use a updater client key(key for the updater client).

    You can generate one of those keys from your account .

    Once you have it, put that new key instead of pass:

    password = "pass"

    And change the API endpoint to the new one:

    dynupdate = "https://members.dyndns.org/v3/update"

    wildcardYou can also remove the and keys mxfrom the dictionary params, as they are unnecessary.

    Clever! Running your script should work fine. Remember to add the line you mention in your question, so that it shows the new IP as you want:

    if "good" in dyn.text:
    print "Update successful... " + ip
    • 1