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From f968f649e7e57eb097fb766be805a2d976d2dcc6 Mon Sep 17 00:00:00 2001
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From: Petr Mensik <pemensik@redhat.com>
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Date: Wed, 27 Nov 2019 16:06:12 +0100
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Subject: [PATCH] Disable listening on IPV6 by default
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If configuration file does not mention listen-on-v6, for backward
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compatibility assume none; Upstream changed default value to any; but
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previous RHEL7 version did not have it.
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---
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bin/named/server.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/bin/named/server.c b/bin/named/server.c
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index 93f9417..eac467f 100644
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--- a/bin/named/server.c
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+++ b/bin/named/server.c
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@@ -7781,11 +7781,13 @@ load_configuration(const char *filename, ns_server_t *server,
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ns_g_mctx, AF_INET6,
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&listenon);
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} else if (!ns_g_lwresdonly) {
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+ isc_boolean_t enable;
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/*
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* Not specified, use default.
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*/
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+ enable = ISC_TF(isc_net_probeipv4() != ISC_R_SUCCESS);
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CHECK(ns_listenlist_default(ns_g_mctx, listen_port,
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- -1, ISC_TRUE, &listenon));
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+ -1, enable, &listenon));
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}
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if (listenon != NULL) {
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ns_interfacemgr_setlistenon6(server->interfacemgr,
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--
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2.20.1
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