Post Reply 
 
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Zone transfers are over TCP
11-14-2013, 08:48 AM
Post: #1
Zone transfers are over TCP
In email:

Quote:http://maradns.samiam.org/tutorial/dnsmaster.html
http://maradns.samiam.org/tutorial/dnsslave.html

Does zone_transfer_acl option use TCP or UDP to send data to slave?

zone_transfer_acl uses TCP to send zone transfer data (it's far too big for 512-byte UDP)

Quote:If fetchzone also works with UDP only I could disable TCP.

fetchzone uses only TCP

Zone transfers are the only case where one uses DNS-over-TCP in the real world (these days, people use EDNS0 to make bigger then 512 bytes DNS packets, but that is its own can of worms and not supported by MaraDNS/Deadwood)
Visit this user's website Find all posts by this user
Quote this message in a reply
Post Reply 


Forum Jump:


User(s) browsing this thread: 1 Guest(s)