48 lines
1.5 KiB
Diff
48 lines
1.5 KiB
Diff
From ebd8a5bc9259cc7a95460ee835df50cef0c32aae Mon Sep 17 00:00:00 2001
|
|
From: Lukas Javorsky <ljavorsk@redhat.com>
|
|
Date: Wed, 12 Apr 2023 17:52:14 +0000
|
|
Subject: [PATCH] resolv.conf.5: Add option no-aaaa to the resolv.conf manual
|
|
page
|
|
|
|
---
|
|
man-pages/man5/resolv.conf.5 | 23 +++++++++++++++++++++++
|
|
1 file changed, 23 insertions(+)
|
|
|
|
diff --git a/man-pages/man5/resolv.conf.5 b/man-pages/man5/resolv.conf.5
|
|
index 93c6b47..7c61783 100644
|
|
--- a/man-pages/man5/resolv.conf.5
|
|
+++ b/man-pages/man5/resolv.conf.5
|
|
@@ -189,6 +189,29 @@ which causes round-robin selection of name servers from among those listed.
|
|
This has the effect of spreading the query load among all listed servers,
|
|
rather than having all clients try the first listed server first every time.
|
|
.TP
|
|
+.B no\-aaaa
|
|
+.\" f282cdbe7f436c75864e5640a409a10485e9abb2
|
|
+Sets
|
|
+.B RES_NOAAAA
|
|
+in
|
|
+.IR _res.options ,
|
|
+which suppresses AAAA queries made by the stub resolver,
|
|
+including AAAA lookups triggered by NSS-based interfaces such as
|
|
+.BR getaddrinfo (3).
|
|
+Only DNS lookups are affected: IPv6 data in
|
|
+.BR hosts (5)
|
|
+is still used,
|
|
+.BR getaddrinfo (3)
|
|
+with
|
|
+.B AI_PASSIVE
|
|
+will stillproduce IPv6 addresses,
|
|
+and configured IPv6 name servers are still used.
|
|
+To produce correct Name Error (NXDOMAIN) results,
|
|
+AAAA queries are translated to A queries.
|
|
+This option is intended preliminary for diagnostic purposes,
|
|
+to rule out that AAAA DNS queries have adverse impact.
|
|
+It is incompatible with EDNS0 usage and DNSSEC validation by applications.
|
|
+.TP
|
|
.B no\-check\-names
|
|
.\" since glibc 2.2
|
|
Sets
|
|
--
|
|
2.39.2
|
|
|