Linux 3

Ubuntu ์—์„œ ํŒจํ‚ค์ง€๋ฅผ ์—…๊ทธ๋ ˆ์ด๋“œํ•  ๋•Œ ์˜ค๋ฅ˜ ํ•ด๊ฒฐ ๋ฐฉ๋ฒ•

Ubuntu ์„œ๋ฒ„๋ฅผ ์šด์˜์ค‘์ธ๋ฐ, apt upgrade ์‹œ ์•„๋ž˜์™€ ๊ฐ™์€ ์˜ค๋ฅ˜๊ฐ€ ์ข…์ข… ๋ฐœ์ƒํ•œ๋‹ค.Errors were encountered while processing: initramfs-tools linux-image-5.15.0-139-genericE: Sub-process /usr/bin/dpkg returned an error code (1)๊ทธ๋ž˜์„œ ChatGPT ์—๊ฒŒ ๋ฌผ์–ด๋ณด๋‹ˆ ์•„๋ž˜์™€ ๊ฐ™์ด ์•Œ๋ ค์ค˜์„œ ํ•ด๋ณด๋‹ˆ ๋ฌธ์ œ๊ฐ€ ํ•ด๊ฒฐ๋˜๋Š” ๊ฒƒ ๊ฐ™๋‹ค.์ด๋Š” ์ฃผ๋กœ initramfs ์ƒ์„ฑ ๋˜๋Š” ์ปค๋„ ์ด๋ฏธ์ง€ ์„ค์น˜ ๊ณผ์ •์—์„œ ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ–ˆ์Œ์„ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. ํ•ด๊ฒฐ ๋ฐฉ๋ฒ•์€ ๋‹ค์Œ ์ˆœ์„œ๋Œ€๋กœ ์‹œ๋„ํ•ด ๋ณด์„ธ์š”:1.initramfs ์ˆ˜๋™ ์žฌ์ƒ์„ฑํ„ฐ๋ฏธ๋„์—์„œ ์•„๋ž˜ ๋ช…๋ น์–ด๋ฅผ ์‹คํ–‰ํ•ด initramfs๋ฅผ ์ˆ˜๋™์œผ๋กœ ์žฌ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค:sudo update-initra..

IT Talks/Linux 2025.06.06

์„œ๋ฒ„์˜ ๊ณต์ธ IP ํ™•์ธํ•˜๊ธฐ

์ผ๋ฐ˜์ ์ธ ๋ฆฌ๋ˆ…์Šค ์„œ๋ฒ„๋Š” ์ด๋”๋„ท๋ณ„๋กœ IP๋ฅผ ํ• ๋‹นํ•˜์—ฌ ifconfig ๋ช…๋ น์–ด๋กœ ํ• ๋‹น๋œ IP ๋ฅผ ํ™•์ธํ•  ์ˆ˜ ์žˆ์œผ๋‚˜ AWS (Amazon Web Service)๋“ฑ์˜ ํด๋ผ์šฐ๋“œ ์žฅ๋น„์—์„œ๋Š” Private IP ๋งŒ ํ™•์ธ์ด ๊ฐ€๋Šฅํ•˜๊ณ  Public IP ๋Š” Amazon Console ๋“ฑ์„ ํ†ตํ•ด์„œ ํ™•์ธ์ด ๊ฐ€๋Šฅํ•˜๋‹ค.๋˜๋Š” NAT ์•„๋ž˜์— ์œ„์น˜ํ•œ ์„œ๋ฒ„๋“ค์˜ ๊ฒฝ์šฐ๋„ ์‹ค์ œ ํ• ๋‹น๋œ IP๋Š” ์‚ฌ์„ค IP๋งŒ ํ‘œ์‹œ๋˜๊ณ , ์™ธ๋ถ€ ์ ‘์†์‹œ ์™ธ๋ถ€ ์„œ๋ฒ„์—์„œ ์ธ์‹ํ•˜๋Š” IP ๋Š” NAT ์˜ IP ๊ฐ€ ๋œ๋‹ค.์ด๋Ÿฐ ๊ฒฝ์šฐ ์„œ๋ฒ„์—์„œ ๊ฐ„๋‹จํ•˜๊ฒŒ ์™ธ๋ถ€๋กœ ์ ‘์†ํ•˜๋Š” ๋ณธ์ธ IP๋ฅผ ํ™•์ธํ•˜๋Š” ๋ฐฉ๋ฒ•์€ ์•„๋ž˜์™€ ๊ฐ™๋‹ค.1. ํ˜„์žฌ ์‚ฌ์šฉ์ค‘์ธ ์„œ๋ฒ„์˜ ๊ณต์ธIP ์กฐํšŒ (Outbound)$ curl ip.ojj.krYour IP is 175.123.191.3 2. ํŠน์ • IP์˜ ์ •๋ณด ์กฐํšŒ$ curl ip...

IT Talks/Linux 2023.02.22

[๋ฆฌ๋ˆ…์Šค] date ๋ช…๋ น์œผ๋กœ timestamp ๋ณ€ํ™˜ํ•˜๊ธฐ

1. timestamp ๊ฐ’์œผ๋กœ ์›ํ•˜๋Š” ๋‚ ์งœ ํ˜•ํƒœ๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ $ date -d '1970-01-01 1676360315 sec' 2023. 02. 14. (ํ™”) 07:38:35 KST $ date -d '1970-01-01 1676360315 sec' +'%Y-%m-%d %H:%M:%S' 2023-02-14 07:38:35 * ๊ฒฐ๊ณผ๋Š” ์‹œ์Šคํ…œ Timezone์— ๋งž์ถฐ์„œ ํ‘œ์‹œ๋จ 2. ๋‚ ์งœ ํ˜•์‹์œผ๋กœ timestamp ๊ฐ’ ๊ตฌํ•˜๊ธฐ (1๋ฒˆ๊ณผ ๋ฐ˜๋Œ€) $ date -d '2022-02-14' +%s 1644764400

IT Talks 2023.02.14
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