FM / examples

/usr/share/doc/python3-dns/examples

Name	Size	Mode	Actions
async_dns.py	874	0644	edit dl rm
ddns.py	1194	0644	edit dl rm
ddr.py	950	0644	edit dl rm
doh-json.py	3001	0644	edit dl rm
doh.py	534	0644	edit dl rm
doq.py	3143	0644	edit dl rm
e164.py	115	0644	edit dl rm
ecs.py	450	0644	edit dl rm
edns.py	1739	0644	edit dl rm
edns_resolver.py	1532	0644	edit dl rm
mx.py	189	0644	edit dl rm
name.py	356	0644	edit dl rm
query_specific.py	1655	0644	edit dl rm
receive_notify.py	1022	0644	edit dl rm
reverse.py	1389	0644	edit dl rm
reverse_name.py	140	0644	edit dl rm
send_notify.py	2462	0644	edit dl rm
wire_read_tcp.py	1659	0644	edit dl rm
xfr.py	340	0644	edit dl rm
zonediff.py	12173	0644	edit dl rm

Edit: /usr/share/doc/python3-dns/examples/receive_notify.py (1022B)

#!/usr/bin/env python3

# This is just a toy, real code would check that the received message
# really was a NOTIFY, and otherwise handle errors.

import socket

import dns.flags
import dns.message
import dns.rdataclass
import dns.rdatatype
import dns.name

from typing import cast

address = "127.0.0.1"
port = 53535

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((address, port))
while True:
    (wire, address) = s.recvfrom(512)
    notify = dns.message.from_wire(wire)

try:
        soa = notify.find_rrset(
            notify.answer, notify.question[0].name, dns.rdataclass.IN, dns.rdatatype.SOA
        )

# Do something with the SOA RR here
        print("The serial number for", soa.name, "is", soa[0].serial)
    except KeyError:
        # No SOA RR in the answer section.
        pass

response = dns.message.make_response(notify)  # type: dns.message.Message
    response.flags |= dns.flags.AA
    wire = response.to_wire(cast(dns.name.Name, response))
    s.sendto(wire, address)

#!/usr/bin/env python3 # This is just a toy, real code would check that the received message # really was a NOTIFY, and otherwise handle errors. import socket import dns.flags import dns.message import dns.rdataclass import dns.rdatatype import dns.name from typing import cast address = "127.0.0.1" port = 53535 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.bind((address, port)) while True: (wire, address) = s.recvfrom(512) notify = dns.message.from_wire(wire) try: soa = notify.find_rrset( notify.answer, notify.question[0].name, dns.rdataclass.IN, dns.rdatatype.SOA ) # Do something with the SOA RR here print("The serial number for", soa.name, "is", soa[0].serial) except KeyError: # No SOA RR in the answer section. pass response = dns.message.make_response(notify) # type: dns.message.Message response.flags |= dns.flags.AA wire = response.to_wire(cast(dns.name.Name, response)) s.sendto(wire, address)