seems to work now

server/DnsHandler.py

@@ -5,6 +5,7 @@ import dns.rdataclass
 import dns.rdatatype
 import dns.rdtypes.IN.A
 import dns.tsigkeyring
+from dns.tsig import HMAC_SHA256
 import dns.rcode 
 import threading
 import time
@@ -52,7 +53,7 @@ class DnsHandler(threading.Thread):
             return
         # send A-RR insertion for ip to DNS server
         rr = dns.rdtypes.IN.A.A(dns.rdataclass.IN, dns.rdatatype.A, address)
-        u = dns.update.Update(zone, keyring=self.keyring)
+        u = dns.update.Update(zone, keyring=self.keyring, keyalgorithm=HMAC_SHA256)
         u.add(name, self.ttl, rr)
         r = dns.query.tcp(u, self.nsAddress, port=self.nsPort)
 
@@ -65,7 +66,7 @@ class DnsHandler(threading.Thread):
         if self.dnsDummy:
             return
         # send A-RR deletion for ip to DNS server
-        u = dns.update.Update(zone, keyring=self.keyring)
+        u = dns.update.Update(zone, keyring=self.keyring, keyalgorithm=HMAC_SHA256)
         u.delete(name)
         r = dns.query.tcp(u, self.nsAddress, port=self.nsPort)
 

server/logger.py

@@ -1,4 +1,5 @@
 import syslog
+import sys
 
 
 class Logger(object):
@@ -6,13 +7,15 @@ class Logger(object):
     def log(data):
         syslog.syslog(syslog.LOG_INFO, data)
         if Logger.debugFlag:
-            print data
+            # print data
+            sys.stderr.write(data)
     
     @staticmethod
     def debug(data):
         if Logger.debugFlag:
             syslog.syslog(syslog.LOG_DEBUG, data)
-            print data
+            # print data
+            sys.stderr.write(data)
 
     @staticmethod
     def openlog():