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added note about firewalls dropping fragments [RT #1245]

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Andreas Gustafsson
2001-05-08 21:46:11 +00:00
parent c3ebcedbe5
commit 2e28950b72
1 changed files with 7 additions and 1 deletions
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doc/misc/migration
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@@ -128,6 +128,12 @@ authoritative servers use this server will be very slow or fail
completely. We have contacted the manufacturer of the name server in
case, and they are working on a solution.
When BIND 9 communicates with a server that does support EDNS0, such as
another BIND 9 server, responses of up to 4096 bytes may be
transmitted as a single UDP datagram which is subject to fragmentation
at the IP level. If a firewall incorrectly drops IP fragments, it can
cause resolution to slow down dramatically or fail.
3.2. Zone transfers
Outgoing zone transfers now use the "many-answers" format by default.
@@ -200,4 +206,4 @@ directing queries for a given domain to a particular set of name
servers.
$Id: migration,v 1.29 2001/04/25 17:35:10 gson Exp $
$Id: migration,v 1.30 2001/05/08 21:46:11 gson Exp $