What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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โ˜†โ˜… 2026 ๋ณ‘์˜ค๋…„ ๋Œ€๋ฐ•โ˜…โ˜† ์ƒˆํ•ด ์ฒซ ์‹œ์ž‘, ์ƒˆํ•ด ๋ณต ๋งŽ์ด ์ฃผํŒŒ์ˆ˜๐ŸŽ ํˆด์–ด๋งŒ ๋‘์‹œ๋ฉด ์ง‘์—์„œ ํ•œ๋ผ์‚ฐ ๊ธฐ์šด์ด ๊ฐ€๋“! ์ƒˆํ•ด ๋ณต ๋งŽ์ด ์ฃผํŒŒ์ˆ˜๋กœ ์ƒ์พŒํ•œ ์ƒˆํ•ด ์‹œ์ž‘ํ•˜์„ธ์š”! ๐ŸŽง genie.co.kr/5LWJT1

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์ƒˆํ•ด์ฒซ๊ณก: "์„ธ์ƒ์— ์ง€์ง€ ๋ง์•„์š”" youtu.be/8fwBDIbxIBM?... ๋‹ค๋“ค ์ง€์ง€์•Š๊ณ  ๋พฐ์กฑ๋พฐ์กฑํ•œ ํ•œํ•ด ๋˜์‹œ๊ธธ ๋ฐ”๋ž๋‹ˆ๋‹ค. ํˆฌ์Ÿ!

์„ธ์ƒ์— ์ง€์ง€ ๋ง์•„์š”_๋…ธ๋ž˜๋กœ๋ฌผ๋“ค๋‹ค

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ใŠ—๏ธ ใŠ—๏ธ ใŠ—๏ธ
\ ํœ™ / /
. . ํœ™

ํƒ๋ผ์— ์ƒˆํ•ด ๋ณต ๋Œ๋ฆฝ๋‹ˆ๋‹ค
์˜†์‚ฌ๋žŒํ•œํ…Œ ๋– ๋„˜๊ธฐ์„ธ์š”
.
. ํœ™ .
/ \ ํœ™ \
ใŠ—๏ธ ๐Ÿˆโ€โฌ› ใŠ—๏ธ
(์‰ฟ ๋„ˆ๋งŒ ๊ณ ์–‘์ด์•ผ)

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๋ถ‰์€ ๋ง์˜ ํ•ด, ๋ณ‘์˜ค๋…„์˜ ํ•‘ํ‚ค ํŒŒ์ด Pinkie Pie on the Year of Red Horse ๋‘๋น› ๊ทธ๋ฆผ Drawn by Dubit 2026-01-01 ๋ถ‰์€ ๋ง์˜ ํ•ด, ๋ณ‘์˜ค๋…„์„ ๋งž์•„ ๋ถ„ํ™์ƒ‰์ด์ง€๋งŒ ๋„“์€ ์˜๋ฏธ์˜ ๋ถ‰์€ ๋ง์ธ ํ•‘ํ‚ค ํŒŒ์ด๋ฅผ ๊ทธ๋ ธ์Šต๋‹ˆ๋‹ค. ์ƒˆํ•ด ๋ณต ๋งŽ์ด ๋ฐ›์œผ์„ธ์š”! I drew Pinkie Pie, who's pink but also actually a red horse, celebrating the year of red horse. Happy new year! ํฌ์Šคํƒ€์ž… Postype: posty.pe/7qvgk1

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Question to people more knowledgeable about #BSD systems (primarily #FreeBSD, but the more answers the merrier)!

On Linux, I can use ipset (or nftables sets) to create a set of IP addresses I can match against with one rule. Like:

# ipset create test-set iphash
# iptables -I INPUT -m set --match-set test-set src -j DROP

This would drop any and all source addresses that I add to test-set in the future, without having to update INPUT. It also does some magic hashing thing to make all this efficient.

The reason I want this is because I'll be adding a lot of unique IPs to this set (about half a million, if not more). When adding them directly to iptables, the Linux kernel was very unhappy about that. But with a set? Worked like a charm.

Can pf or any other packet filter tool on the BSDs do something similar? Allow me to block a very large number of unique IPs?

Blocking ASNs or ranges is not feasible, I need to block unique IPs.

Bonus points if it can automatically expire entries that were added or updated N seconds ago.

Boosts appreciated.

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ๆ–ฐใ—ใ„ๅนดใซใชใฃใŸใ—ใ€Web ใƒ–ใƒฉใ‚ฆใ‚ถใ‚’ๅค‰ใˆใฆใฟใชใ„ใ‹๏ผŸ Vivaldi ใฏใ„ใ„ใž

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ใŠ—๏ธ ใŠ—๏ธ ใŠ—๏ธ \ ํœ™ / / . . ํœ™ ํƒ๋ผ์— ์ƒˆํ•ด ๋ณต ๋Œ๋ฆฝ๋‹ˆ๋‹ค ์˜†์‚ฌ๋žŒํ•œํ…Œ ๋– ๋„˜๊ธฐ์„ธ์š” . . ํœ™ . / \ ํœ™ \ ใŠ—๏ธ ๐Ÿˆโ€โฌ› ใŠ—๏ธ (์‰ฟ ๋„ˆ๋งŒ ๊ณ ์–‘์ด์•ผ)

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ๅนด่ณ€็Šถใงใ™ใ€‚ใ‘ใ—ใ‹ใ‚‰ใ‚“ใฒใจใซใฏใจใฉใใพใ›ใ‚“ใ‚ˆใ†ใซ๏ผๅ•้กŒใŒใ‚ใ‚Œใฐๅณๅˆปๆถˆใ—ใพใ™ใ‹ใ‚‰ใ€้ขๅ€’ใใ•ใ„็ตกใฟใƒชใƒ—ใ‚’ใŠๅพ…ใกใ—ใฆใ„ใพใ™ใ€‚

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ๅนด่ณ€็Šถใงใ™ใ€‚ใ‘ใ—ใ‹ใ‚‰ใ‚“ใฒใจใซใฏใจใฉใใพใ›ใ‚“ใ‚ˆใ†ใซ๏ผๅ•้กŒใŒใ‚ใ‚Œใฐๅณๅˆปๆถˆใ—ใพใ™ใ‹ใ‚‰ใ€้ขๅ€’ใใ•ใ„็ตกใฟใƒชใƒ—ใ‚’ใŠๅพ…ใกใ—ใฆใ„ใพใ™ใ€‚

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2025๋…„, ๋ธ”๋ฃจ์Šค์นด์ด์—์„œ ๋…์ž๋‹˜๋“ค์„ ๋งŒ๋‚˜ ์ •๋ง ๋ฐ˜๊ฐ€์› ์Šต๋‹ˆ๋‹ค. ํŠธ์œ„ํ„ฐ์—์„œ ๋ฏธ์ฒ˜ ๋“ฃ์ง€ ๋ชปํ–ˆ๋˜ ๋‹ค์ฑ„๋กœ์šด ์˜๊ฒฌ ํ†ตํ•ด ๋งŽ์ด ๋ฐฐ์› ์Šต๋‹ˆ๋‹ค. ์ƒˆํ•ด์—๋„ ์ด๊ณณ์—์„œ๋งŒ ๋“ค์„ ์ˆ˜ ์žˆ๋Š” ๋ชฉ์†Œ๋ฆฌ์— ๊ท€ ๊ธฐ์šธ์ด๊ณ , ๋” ์ข‹์€ ๊ธฐ์‚ฌ ์†Œ๊ฐœํ•  ์ˆ˜ ์žˆ๋„๋ก ๋…ธ๋ ฅํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. 2026๋…„๋„ ์ž˜ ๋ถ€ํƒ๋“œ๋ฆฝ๋‹ˆ๋‹ค. * SNS ๋‹ด๋‹น์ž 1ํ˜ธ๊ฐ€ ์ถœ์‚ฐ์œผ๋กœ ์ž๋ฆฌ๋ฅผ ์ž ์‹œ ๋น„์›๋‹ˆ๋‹ค. ๊ทธ๋™์•ˆ 1์ธ ๋‹ด๋‹น์ œ์˜€๋˜ ๋ธ”๋ฃจ์Šค์นด์ด๋ฅผ 2์ธ ์šด์˜์ œ๋กœ ๋ณ€๊ฒฝํ•˜๊ณ , ๋” ํ’์„ฑํ•˜๊ฒŒ ๊พธ๋ ค๊ฐˆ ๊ณ„ํš์ž…๋‹ˆ๋‹ค. ์•„์ง ๋ธ”๋ฃจ์Šค์นด์ด๊ฐ€ ๋‚ฏ์„ค ๋‹ด๋‹น์ž 2ํ˜ธ์™€ 3ํ˜ธ์—๊ฒŒ๋„ ๋”ฐ๋œปํ•œ ๊ฒฉ๋ ค ๋ถ€ํƒ๋“œ๋ฆฝ๋‹ˆ๋‹ค. ํ•œ๊ฒจ๋ ˆ SNS ์šด์˜ํŒ€ ๋“œ๋ฆผ ๐Ÿฆ„๐Ÿฉท

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์—ฌ๋Ÿฌ๋ถ„ ํ•ดํ”ผ ํ• ๋กœ์œˆ ๋˜์„ธ์š”
์—ฌ๋Ÿฌ๋ถ„ ํ•ดํ”ผ ์ถ”์„ ๋˜์„ธ์š”
์—ฌ๋Ÿฌ๋ถ„ ํ•ดํ”ผ ํฌ๋ฆฌ์Šค๋งˆ์Šค ๋˜์„ธ์š”
์—ฌ๋Ÿฌ๋ถ„ ํ•ดํ”ผ ์ถ”์ˆ˜๊ฐ์‚ฌ์ ˆ ๋˜์„ธ์š”

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๋ถ‰์€ ๋ง์˜ ํ•ด, ๋ณ‘์˜ค๋…„์˜ ํ•‘ํ‚ค ํŒŒ์ด Pinkie Pie on the Year of Red Horse ๋‘๋น› ๊ทธ๋ฆผ Drawn by Dubit 2026-01-01 ๋ถ‰์€ ๋ง์˜ ํ•ด, ๋ณ‘์˜ค๋…„์„ ๋งž์•„ ๋ถ„ํ™์ƒ‰์ด์ง€๋งŒ ๋„“์€ ์˜๋ฏธ์˜ ๋ถ‰์€ ๋ง์ธ ํ•‘ํ‚ค ํŒŒ์ด๋ฅผ ๊ทธ๋ ธ์Šต๋‹ˆ๋‹ค. ์ƒˆํ•ด ๋ณต ๋งŽ์ด ๋ฐ›์œผ์„ธ์š”! I drew Pinkie Pie, who's pink but also actually a red horse, celebrating the year of red horse. Happy new year! ํฌ์Šคํƒ€์ž… Postype: posty.pe/7qvgk1

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โ€‹:kinga_sinnnen2:โ€‹โ€‹:akemasite_omedetou_gozaimasu:โ€‹โ€‹:medetee:โ€‹
๏ผ’ๆžš็›ฎใฏ้š ใ‚ŒใŸ่ƒŒๆ™ฏใ‚‚้ ‘ๅผตใฃใŸใฎใง็ฝฎใ„ใจใใพใ™
โ€‹:kotoyoro:โ€‹

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โ€‹:akemasite_omedetou_gozaimasu:โ€‹
ไปŠๅนดใฏ่‡ชๅˆ†่‡ช่บซใ‚’ๆง˜ใ€…ใช้ขใงๅคงใใๆˆ้•ทใ•ใ›ใ‚‹ไธ€ๅนดใซใ—ใฆใ„ใใŸใ„ใงใ™ใ€‚้’ๆ˜ฅใ‚’ใ—ใŸใ„ใงใ™

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ใ‚ตใƒผใƒใƒผใŒใƒ€ใƒกใใ†ใชใฎใจใ€ใจใฆใ‚‚โ€‹:blobcatblack_nemu:โ€‹ใชใฎใง
ใ”ๆŒจๆ‹ถใฏๆœ่ตทใใŸใ‚‰ใ—ใพใ™๏ผ

โ€‹:ikkaku_futon_daisuki:โ€‹
โ€‹:oyasuminasai:โ€‹

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์ƒˆํ•ด ์ถ•ํ•˜ ๋ฐ• ํ„ฐํŠธ๋ฆฌ๊ธฐ! ใ€€ใ€€ใ€€ใ€€๏ฝœ ใ€€ใ€€๏ผ๏ฟฃ๏ฟฃ๏ฟฃ๏ผผ ใ€€๏ผใ€€ใ€€โˆงใ€€ใ€€๏ผผ โ”‚ใ€€ ๏ผๅท๏ผผใ€€ โ”‚ ใ€€๏ผผ๏ผโ”โ”ปโ”“ ๏ผผ๏ผ ใ€‚ใ‚›๏ผƒโ”ƒํ•ดโ”ƒใ‚›ใ€‚ ใ‚›๏ผŒใ€‚โ”ƒํ”ผโ”ƒ๏ผƒใ€‚ใ‚› ใ€‚ใ‚œ๏ผƒโ”ƒ๋‰ดโ”ƒใ‚›ใ€‚ใ‚› ๏ผŒ๏ผŠใ€‚โ”ƒ์ดโ”ƒใ‚œใ€‚๏ผƒ * ใ‚œใ€‚โ”ƒ์–ดโ”ƒใ‚œ๏ผŠใ€‚ ใ€€ใ€€ใ€€โ”ƒใ€€โ”ƒ ใ€€ใ€€ใ€€โ”—โ”ฏโ”› ใ€€ โˆฉโˆฉใ€€โ”‚ (*ยดโˆ€`)โ”‚ ใ€€/ใ€€โŠƒ

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1. ๅนด่ณ€็Šถใ‚คใƒฉใ‚นใƒˆใ‚’ๅฐๅˆทใ—ใพใ™
2. ๅฎ›ๅใ‚’ๅฐๅˆทใ—ใพใ™
3. ้ƒตไพฟๅ—ใ‘ใซๅ…ฅใ‚Œใพใ™
4. 1ใ€œ3ใฎใ“ใจใ‚’ๅฟ˜ใ‚Œใพใ™
5. ใงใใŸ๏ผ
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