Differential D52977

local-unbound-setup: Set so-sndbuf to 0
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Authored by des on Oct 8 2025, 9:57 AM.

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Reviewers

cy
glebius
jlduran

Commits

rGfef4de6547a7: local-unbound-setup: Set so-sndbuf to 0
rGfe3e929ffa97: local-unbound-setup: Set so-sndbuf to 0
rG49ed9e4acb6e: local-unbound-setup: Set so-sndbuf to 0
rG65629acb4a79: local-unbound-setup: Set so-sndbuf to 0
rGde3faa85d8f9: local-unbound-setup: Set so-sndbuf to 0

Summary

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.

Diff Detail

Repository

rG FreeBSD src repository

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Unit

Tests Not Applicable

Event Timeline

des created this revision.Oct 8 2025, 9:57 AM

Herald added a subscriber: imp. · View Herald TranscriptOct 8 2025, 9:57 AM

des requested review of this revision.Oct 8 2025, 9:57 AM

Harbormaster completed remote builds in B67640: Diff 163754.Oct 8 2025, 9:57 AM

Thank you!

This revision is now accepted and ready to land.Oct 8 2025, 12:40 PM

des mentioned this in D52981: unbound: Reverse two upstream commits setting so_sndbuf default.Oct 8 2025, 3:15 PM

Less intrusive.

Closed by commit rGde3faa85d8f9: local-unbound-setup: Set so-sndbuf to 0 (authored by des). · Explain WhyOct 8 2025, 4:47 PM

This revision was automatically updated to reflect the committed changes.

des added a commit: rGde3faa85d8f9: local-unbound-setup: Set so-sndbuf to 0.

cy added a commit: rG65629acb4a79: local-unbound-setup: Set so-sndbuf to 0.Sun, Oct 26, 3:15 AM

cy added a commit: rG49ed9e4acb6e: local-unbound-setup: Set so-sndbuf to 0.

cy added a commit: rGfe3e929ffa97: local-unbound-setup: Set so-sndbuf to 0.

cperciva added a commit: rGfef4de6547a7: local-unbound-setup: Set so-sndbuf to 0.Tue, Oct 28, 9:24 PM

Revision Contents
Changeset List

Path

Size

usr.sbin/

unbound/

setup/

local-unbound-setup.sh

1 line

Diff 163784

usr.sbin/unbound/setup/local-unbound-setup.sh

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