git: fef4de6547a7 - releng/15.0 - local-unbound-setup: Set so-sndbuf to 0

The branch releng/15.0 has been updated by cperciva:

URL: https://cgit.FreeBSD.org/src/commit/?id=fef4de6547a7d74f579a79d3137835fe480bcf14

commit fef4de6547a7d74f579a79d3137835fe480bcf14
Author:     Dag-Erling Smørgrav <des@FreeBSD.org>
AuthorDate: 2025-10-08 16:45:02 +0000
Commit:     Colin Percival <cperciva@FreeBSD.org>
CommitDate: 2025-10-28 21:23:12 +0000

    local-unbound-setup: Set so-sndbuf to 0
    
    Without this setting, Unbound 1.24.0 and newer will attempt to set the
    socket buffer size to 4 MB to mitigate issues that mostly affect servers
    with large numbers of clients on local networks, which is not a scenario
    local-unbound is intended for.  This is not only a waste of resources,
    it can also fail, resulting in a warning message on daemon startup.
    
    Approved by:    re (cperciva)
    Fixes:          b2efd602aea8 ("unbound: Vendor import 1.24.0")
    Reviewed by:    jlduran, cy
    Differential Revision:  https://reviews.freebsd.org/D52977
    (cherry picked from commit de3faa85d8f99d260cbfa6242dd8e4ece693e4f8)
    (cherry picked from commit 65629acb4a793416b128d932abf5c539315dec4e)
---
 usr.sbin/unbound/setup/local-unbound-setup.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/usr.sbin/unbound/setup/local-unbound-setup.sh b/usr.sbin/unbound/setup/local-unbound-setup.sh
index d57d74952fc7..25cfef48b6f0 100755
--- a/usr.sbin/unbound/setup/local-unbound-setup.sh
+++ b/usr.sbin/unbound/setup/local-unbound-setup.sh
@@ -261,6 +261,7 @@ gen_unbound_conf() {
 	if [ "${use_tls}" = "yes" ] ; then
 		echo "        tls-cert-bundle: /etc/ssl/cert.pem"
 	fi
+	echo "        so-sndbuf: 0"
 	echo ""
 	if [ -f "${forward_conf}" ] ; then
 		echo "include: ${forward_conf}"