[260720] TIL

Today I Learned (2026-07-20)

RDS ์ธ์ฆ์„œ ์˜ค๋ฅ˜ (P1011)

  • ๋ฐฐํฌ ํ™˜๊ฒฝ์—์„œ Prisma๊ฐ€ RDS์— ์ ‘์†ํ•  ๋•Œ P1011 self-signed certificate in certificate chain์ด ๋‚˜๋ฉด, DB ์ฃผ์†Œ๋‚˜ ๊ณ„์ • ๋ฌธ์ œ๊ฐ€ ์•„๋‹ˆ๋ผ ๋Ÿฐํƒ€์ž„์ด RDS ์ธ์ฆ์„œ์˜ ๋ฐœ๊ธ‰๊ธฐ๊ด€์„ ์‹ ๋ขฐํ•˜์ง€ ๋ชปํ•œ ๊ฒƒ์ด๋‹ค. openssl๋กœ RDS CA ๋ฒˆ๋“ค์„ ์จ์„œ ๊ฒ€์ฆํ•ด ๋ณด๋ฉด ์ธ์ฆ์„œ ์ž์ฒด๋Š” ์ •์ƒ(Verify return code: 0)์œผ๋กœ ๋‚˜์˜จ๋‹ค.
  • ?sslmode=no-verify๋Š” ์•”ํ˜ธํ™”๋Š” ์œ ์ง€ํ•˜๋˜ ์ธ์ฆ์„œ ์ง„์œ„ ๊ฒ€์ฆ์„ ๊ฑด๋„ˆ๋›ฐ๋Š” ์ž„์‹œ๋ฐฉํŽธ์ด๋‹ค. ์ •์‹ ํ•ด๊ฒฐ์€ ๋ฆฌ์ „ RDS CA ๋ฒˆ๋“ค์„ ์ฝ”๋“œ์— ๋„ฃ๊ณ  ssl: { ca, rejectUnauthorized: true }๋กœ ๊ฒ€์ฆ์„ ์ผœ๋Š” ๊ฒƒ์ด๋‹ค.

CA (์ธ์ฆ ๊ธฐ๊ด€)

  • CA๋Š” ์ธ์ฆ์„œ๋ฅผ ๋ฐœ๊ธ‰ํ•ด ์ฃผ๋Š” ๊ธฐ๊ด€์ด๋‹ค. TLS ํ†ต์‹ ์„ ํ•˜๋ ค๋ฉด CA๊ฐ€ ์„œ๋ช…ํ•œ ์ธ์ฆ์„œ๊ฐ€ ํ•„์š”ํ•˜๋‹ค.
  • CA๋Š” ์ž์ฒด ๊ณต๊ฐœํ‚ค์™€ ๋น„๋ฐ€ํ‚ค๋ฅผ ๊ฐ–๊ณ  ์žˆ๋‹ค. ํด๋ผ์ด์–ธํŠธ๋Š” ์‹ ๋ขฐํ•˜๋Š” CA ๋ชฉ๋ก์— ๊ทธ ๋ฐœ๊ธ‰๊ธฐ๊ด€์ด ์žˆ์–ด์•ผ ์„œ๋ฒ„ ์ธ์ฆ์„œ๋ฅผ ๋ฏฟ๋Š”๋‹ค.

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