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[gnunet] branch master updated: -update handbook
From: |
gnunet |
Subject: |
[gnunet] branch master updated: -update handbook |
Date: |
Sat, 05 Feb 2022 20:29:01 +0100 |
This is an automated email from the git hooks/post-receive script.
martin-schanzenbach pushed a commit to branch master
in repository gnunet.
The following commit(s) were added to refs/heads/master by this push:
new a3563c94b -update handbook
a3563c94b is described below
commit a3563c94b702719db253b05dab99b2783e35a0de
Author: Martin Schanzenbach <schanzen@gnunet.org>
AuthorDate: Sat Feb 5 20:28:55 2022 +0100
-update handbook
---
doc/handbook/chapters/user.texi | 29 ++++++++++++++++++++++++-----
1 file changed, 24 insertions(+), 5 deletions(-)
diff --git a/doc/handbook/chapters/user.texi b/doc/handbook/chapters/user.texi
index aa912f96f..0b44ab57c 100644
--- a/doc/handbook/chapters/user.texi
+++ b/doc/handbook/chapters/user.texi
@@ -1561,6 +1561,9 @@ The GNS currently supports the record types as defined in
@uref{https://git.gnunet.org/gana.git/tree/gnu-name-system-record-types/registry.rec,
GANA}.
In addition, GNS supports DNS record types, such as A, AAAA or TXT.
+For a complete description of the records, please refer to the specification
+at @uref{https://lsd.gnunet.org/lsd0001, LSD0001}.
+
In the following, we discuss GNS records with specific behaviour or special
handling of DNS records.
@@ -1570,8 +1573,9 @@ handling of DNS records.
* BOX::
* LEHO::
* VPN::
-* CNAME::
+* REDIRECT::
* GNS2DNS::
+* TOMBSTONE::
* SOA SRV PTR and MX::
@end menu
@@ -1668,11 +1672,11 @@ having the following lines in the @file{gnunet.conf}
configuration file:
TCP_REDIRECTS = 80:localhost4:8080
@end example
-@node CNAME
-@subsubsection CNAME
+@node REDIRECT
+@subsubsection REDIRECT
-As specified in RFC 1035 whenever a CNAME is encountered the query
-needs to be restarted with the specified name. In GNS a CNAME
+As specified in LSD0001 whenever a REDIRECT is encountered the query
+needs to be restarted with the specified name. A REDIRECT
can either be:
@itemize @bullet
@@ -1721,6 +1725,21 @@ However, imagine the nameserver was "ns.gnunet.org". In
this case,
delegating to "ns.gnunet.org" would mean that despite using GNS,
censorship in the DNS ".org" zone would still be effective.
+@node TOMBSTONE
+@subsubsection TOMBSTONE
+
+The GNUnet GNS implementation uses the TOMBSTONE record to ensure
+ciphertext indistinguishability for published records.
+It must be ensured that when relative expiration times are decreased, the
+expiration time of the next record block MUST be after the last published
block.
+A similar issue arises if the record set under a label is deleted and reused
+later.
+
+The creation and maintenance of the TOMBSTONE record is done automatically.
+You do not need to mind it yourself and can safely ignore any TOMBSTONE
+blocks you may see when investigating your zone(s).
+TOMBSTONE records are always private and will never be published.
+
@node SOA SRV PTR and MX
@subsubsection SOA SRV PTR and MX
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