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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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Details

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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Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 67640
Build 64523: arc lint + arc unit

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
jlduran accepted this revision.Oct 8 2025, 12:40 PM

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
cy accepted this revision.Oct 8 2025, 4:27 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

PathSize
usr.sbin/
unbound/
setup/
1 line

Diff 163754

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

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