๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด5 ๋ ˆ์‹œํ”ผ #4: ํด๋Ÿฌ์Šคํ„ฐ ํ™•์žฅ - RPi ์ถ”๊ฐ€ ์‹œ SSH ์„ค์ • ๊ฐ€์ด๋“œ

2025. 4. 29. 18:58ยทResearch/Raspberry Pi

๐Ÿ“ข ์ด ๊ธ€์€ "์ดˆ๊ธฐ ์„ธํŒ…"์ด ์•„๋‹Œ "์šด์˜ ์ค‘ ํด๋Ÿฌ์Šคํ„ฐ ํ™•์žฅ" ์ƒํ™ฉ์„ ๊ธฐ์ค€์œผ๋กœ ์ž‘์„ฑ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. (์ดˆ๊ธฐ ์„ธํŒ… ๊ฐ€์ด๋“œ๋Š” โžก๏ธ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด5 ๋ ˆ์‹œํ”ผ #3: ์ดˆ๊ธฐ ํด๋Ÿฌ์Šคํ„ฐ ๊ตฌ์ถ• ๊ฐ€์ด๋“œ๋ฅผ ์ฐธ๊ณ ํ•ด์ฃผ์„ธ์š”!)

์•ˆ๋…•ํ•˜์„ธ์š”! ์˜ค๋Š˜์€ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด ํด๋Ÿฌ์Šคํ„ฐ๋ฅผ ํ™•์žฅํ•  ๋•Œ ๊ผญ ํ•„์š”ํ•œ SSH ์„ค์ • ๋ฐฉ๋ฒ•์— ๋Œ€ํ•ด ์•Œ์•„๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. ํด๋Ÿฌ์Šคํ„ฐ์— ์ƒˆ๋กœ์šด ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋ฅผ ์ถ”๊ฐ€ํ•˜๋ฉด์„œ ๊ณ ์ƒํ–ˆ๋˜ ๊ฒฝํ—˜์„ ๋ฐ”ํƒ•์œผ๋กœ ์ •๋ฆฌํ–ˆ์œผ๋‹ˆ ๋งŽ์€ ๋„์›€์ด ๋˜์—ˆ์œผ๋ฉด ์ข‹๊ฒ ์Šต๋‹ˆ๋‹ค. ๐Ÿ˜Š

๐Ÿ“Œ ๋ชฉํ‘œ

  • ์ƒˆ๋กœ์šด ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋ฅผ ํด๋Ÿฌ์Šคํ„ฐ์— ์ถ”๊ฐ€ํ•  ๋•Œ SSH Key ์ธ์ฆ๊ณผ ProxyJump ์„ค์ • ๋ฐฉ๋ฒ• ์ •๋ฆฌ
  • ๋ชจ๋“  ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด ๊ฐ„ ๋น„๋ฐ€๋ฒˆํ˜ธ ์—†์ด SSH ์ ‘์†์ด ๊ฐ€๋Šฅํ•˜๋„๋ก ์„ค์ •
  • PC์—์„œ ๊ฐ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋กœ ํ•œ ๋ฒˆ์— ์ ‘์†ํ•  ์ˆ˜ ์žˆ๋Š” ํ™˜๊ฒฝ ๊ตฌ์ถ•

https://hongyu.nl/ssh/

1๏ธโƒฃ ๋ชจ๋“  ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ SSH Key ์ƒ์„ฑ ๋ฐ ๊ณต์œ 

1-1. SSH Key ์ƒ์„ฑํ•˜๊ธฐ

ํด๋Ÿฌ์Šคํ„ฐ์˜ ๋ชจ๋“  ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด(๊ธฐ์กด ๋…ธ๋“œ + ์ƒˆ ๋…ธ๋“œ)์—์„œ SSH Key๋ฅผ ์ƒ์„ฑํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ“ ๊ฐ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ ๋‹ค์Œ ๋ช…๋ น์–ด ์‹คํ–‰:

ssh-keygen -t rsa -b 4096

๐Ÿ‘‰ ํ”„๋กฌํ”„ํŠธ ๋‚˜ํƒ€๋‚˜๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ž…๋ ฅ:

  • ํŒŒ์ผ ์ €์žฅ ์œ„์น˜: ๊ทธ๋ƒฅ ์—”ํ„ฐํ‚ค ๋ˆ„๋ฅด๊ธฐ (๊ธฐ๋ณธ๊ฐ’: /home/ubuntu/.ssh/id_rsa)
  • ํŒจ์Šคํ”„๋ ˆ์ด์ฆˆ: ๊ทธ๋ƒฅ ์—”ํ„ฐํ‚ค ๋ˆ„๋ฅด๊ธฐ (๋น„๋ฐ€๋ฒˆํ˜ธ ์—†์ด ์„ค์ •)

ํ‚ค๊ฐ€ ์ œ๋Œ€๋กœ ์ƒ์„ฑ๋˜์—ˆ๋Š”์ง€ ํ™•์ธํ•˜๋ ค๋ฉด:

ls ~/.ssh/id_rsa.pub

ํŒŒ์ผ์ด ์กด์žฌํ•˜๋ฉด ์„ฑ๊ณต์ž…๋‹ˆ๋‹ค! ๐ŸŽ‰

1-2. SSH Key ๊ณต์œ ํ•˜๊ธฐ

์ด์ œ ๊ฐ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ ๋‹ค๋ฅธ ๋ชจ๋“  ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋กœ SSH Key๋ฅผ ๋ณต์‚ฌํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.

์˜ˆ๋ฅผ ๋“ค์–ด, pi1์—์„œ pi2, pi3, pi4๋กœ ๋ณต์‚ฌํ•˜๋Š” ๋ฐฉ๋ฒ•:

ssh-copy-id ubuntu@165.194.19.XX  # pi2์˜ IP
ssh-copy-id ubuntu@165.194.19.XX  # pi3์˜ IP
ssh-copy-id ubuntu@165.194.19.XX  # pi4์˜ IP

๐Ÿ” ์ฃผ์˜: ์‹ค์ œ IP ์ฃผ์†Œ๋ฅผ ์‚ฌ์šฉํ•˜์„ธ์š”! ์—ฌ๊ธฐ์„œ๋Š” ๋ณด์•ˆ์„ ์œ„ํ•ด ์ผ๋ถ€๋ฅผ ๊ฐ€๋ ธ์Šต๋‹ˆ๋‹ค.

SSH Key ๋ณต์‚ฌ๊ฐ€ ์™„๋ฃŒ๋˜๋ฉด ๋น„๋ฐ€๋ฒˆํ˜ธ ์—†์ด ์ ‘์†์ด ๊ฐ€๋Šฅํ•œ์ง€ ํ…Œ์ŠคํŠธํ•ด๋ณด์„ธ์š”:

ssh pi2
ssh pi3
ssh pi4

๋น„๋ฐ€๋ฒˆํ˜ธ ์š”์ฒญ ์—†์ด ์ ‘์†๋˜๋ฉด ์„ฑ๊ณต์ž…๋‹ˆ๋‹ค! ๐Ÿ˜„

2๏ธโƒฃ ProxyJump ์„ค์ •ํ•˜๊ธฐ

2-1. Windows PC์—์„œ SSH ์„ค์ •ํ•˜๊ธฐ

PC์—์„œ ๊ฐ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋กœ ๋ฐ”๋กœ ์ ‘์†ํ•  ์ˆ˜ ์žˆ๋„๋ก ProxyJump๋ฅผ ์„ค์ •ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค.

๐Ÿ“ CMD์—์„œ ๋‹ค์Œ ๋ช…๋ น์–ด ์‹คํ–‰:

notepad %USERPROFILE%\.ssh\config

๐Ÿ“‹ ๋‹ค์Œ ๋‚ด์šฉ ์ถ”๊ฐ€ (ํด๋Ÿฌ์Šคํ„ฐ์— ์ƒˆ๋กœ์šด ๋…ธ๋“œ ์ถ”๊ฐ€ํ•  ๋•Œ๋งˆ๋‹ค ์—…๋ฐ์ดํŠธ):

Host pi1
    HostName 165.194.19.XX
    User ubuntu
    IdentityFile ~/.ssh/id_rsa

Host pi2
    HostName 165.194.19.XX
    User ubuntu
    ProxyJump pi1
    IdentityFile ~/.ssh/id_rsa

Host pi3
    HostName 165.194.19.XX
    User ubuntu
    ProxyJump pi1
    IdentityFile ~/.ssh/id_rsa

Host pi4
    HostName 165.194.19.XX
    User ubuntu
    ProxyJump pi1
    IdentityFile ~/.ssh/id_rsa

# ์ƒˆ๋กœ์šด ๋…ธ๋“œ ์ถ”๊ฐ€ ์‹œ ์•„๋ž˜ ํ˜•์‹์œผ๋กœ ์ถ”๊ฐ€
# Host pi5
#     HostName 165.194.19.XX
#     User ubuntu
#     ProxyJump pi1
#     IdentityFile ~/.ssh/id_rsa

ํŒŒ์ผ์„ ์ €์žฅํ•˜๊ณ  ๋‹ซ์€ ํ›„, ์ ‘์† ํ…Œ์ŠคํŠธ:

ssh pi2
ssh pi3
ssh pi4

์ด์ œ PC์—์„œ ssh pi2๋งŒ ์ž…๋ ฅํ•˜๋ฉด pi1์„ ๊ฑฐ์ณ ์ž๋™์œผ๋กœ ์ ‘์†๋ฉ๋‹ˆ๋‹ค! ๐ŸŽฏ

2-2. ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ SSH ์„ค์ •ํ•˜๊ธฐ

๊ฐ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ๋„ SSH ์„ค์ • ํŒŒ์ผ์„ ๋งŒ๋“ค์–ด ๋ฐ”๋กœ ์ ‘์†ํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ“ ๊ฐ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ ๋‹ค์Œ ๋ช…๋ น์–ด ์‹คํ–‰:

nano ~/.ssh/config

๐Ÿ“‹ ๋‹ค์Œ ๋‚ด์šฉ ์ถ”๊ฐ€:

Host pi1
    HostName 165.194.19.XX
    User ubuntu
    IdentityFile ~/.ssh/id_rsa

Host pi2
    HostName 165.194.19.XX
    User ubuntu
    IdentityFile ~/.ssh/id_rsa

Host pi3
    HostName 165.194.19.XX
    User ubuntu
    IdentityFile ~/.ssh/id_rsa

Host pi4
    HostName 165.194.19.XX
    User ubuntu
    IdentityFile ~/.ssh/id_rsa

์„ค์ • ์ €์žฅ ํ›„ (Ctrl + X → Y → Enter), ๊ถŒํ•œ ์„ค์ •:

chmod 600 ~/.ssh/config

์ด์ œ ๋ชจ๋“  ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด ๊ฐ„ ssh piX ๋ช…๋ น์ด ๋น„๋ฐ€๋ฒˆํ˜ธ ์—†์ด ๊ฐ€๋Šฅํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค! ๐Ÿ‘

3๏ธโƒฃ ์ƒˆ๋กœ์šด ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋ฅผ ํด๋Ÿฌ์Šคํ„ฐ์— ์ถ”๊ฐ€ํ•˜๋Š” ๊ณผ์ •

์ƒˆ๋กœ์šด ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด(์˜ˆ: pi5)๋ฅผ ํด๋Ÿฌ์Šคํ„ฐ์— ์ถ”๊ฐ€ํ•˜๋ ค๋ฉด ๋‹ค์Œ ์ ˆ์ฐจ๋ฅผ ๋”ฐ๋ฅด์„ธ์š”:

1. ์ƒˆ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ SSH Key ์ƒ์„ฑ

ssh-keygen -t rsa -b 4096

(ํŒŒ์ผ๋ช…์€ ๊ธฐ๋ณธ๊ฐ’, ํŒจ์Šคํ”„๋ ˆ์ด์ฆˆ๋Š” ๋นˆ์นธ์œผ๋กœ)

2. ๊ธฐ์กด ๋ชจ๋“  ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ ์ƒˆ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋กœ SSH Key ๋ณต์‚ฌ

๋ชจ๋“  ๊ธฐ์กด ๋…ธ๋“œ(pi1, pi2, pi3, pi4)์—์„œ ์‹คํ–‰:

ssh-copy-id ubuntu@165.194.19.XX  # pi5์˜ IP

3. ์ƒˆ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ ๊ธฐ์กด ๋ชจ๋“  ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋กœ SSH Key ๋ณต์‚ฌ

ssh-copy-id ubuntu@165.194.19.XX  # pi1์˜ IP
ssh-copy-id ubuntu@165.194.19.XX  # pi2์˜ IP
ssh-copy-id ubuntu@165.194.19.XX  # pi3์˜ IP
ssh-copy-id ubuntu@165.194.19.XX  # pi4์˜ IP

4. ์ƒˆ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์—์„œ SSH ์„ค์ • ํŒŒ์ผ ์ƒ์„ฑ

nano ~/.ssh/config

์œ„์—์„œ ์„ค๋ช…ํ•œ ์„ค์ • ์ถ”๊ฐ€ ํ›„ ๊ถŒํ•œ ์„ค์ •:

chmod 600 ~/.ssh/config

5. Windows์˜ SSH ์„ค์ • ํŒŒ์ผ์— ์ƒˆ ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด ์ถ”๊ฐ€

Host pi5
    HostName 165.194.19.XX
    User ubuntu
    ProxyJump pi1
    IdentityFile ~/.ssh/id_rsa

6. ํ˜ธ์ŠคํŠธ ํŒŒ์ผ ์ˆ˜์ • (์„ ํƒ ์‚ฌํ•ญ)

pi1์—์„œ /etc/hosts ํŒŒ์ผ์„ ์ˆ˜์ •ํ•˜์—ฌ ์ƒˆ ๋…ธ๋“œ๋ฅผ ์ถ”๊ฐ€ํ•˜๋ฉด ๋”์šฑ ํŽธ๋ฆฌํ•ฉ๋‹ˆ๋‹ค:

sudo nano /etc/hosts

๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ถ”๊ฐ€:

165.194.19.XX rpi-05 pi5

๊ธฐ์กด hosts ํŒŒ์ผ ์˜ˆ์‹œ:

127.0.0.1       localhost
127.0.1.1       rpi-01

165.194.19.XX rpi-01 pi1
165.194.19.XX rpi-02 pi2
165.194.19.XX rpi-03 pi3
165.194.19.XX rpi-04 pi4

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouter

๋งˆ๋ฌด๋ฆฌ

์ด์ œ ๋ชจ๋“  ์„ค์ •์ด ์™„๋ฃŒ๋˜์—ˆ์Šต๋‹ˆ๋‹ค! ๐ŸŽ‰ ์ƒˆ๋กœ์šด ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋ฅผ ํด๋Ÿฌ์Šคํ„ฐ์— ์ถ”๊ฐ€ํ•  ๋•Œ๋งˆ๋‹ค ์œ„ ์ ˆ์ฐจ๋ฅผ ๋”ฐ๋ผ๊ฐ€๋ฉด ๋ฉ๋‹ˆ๋‹ค. ์ด ์„ค์ •์„ ํ†ตํ•ด ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด ํด๋Ÿฌ์Šคํ„ฐ ๊ด€๋ฆฌ๊ฐ€ ํ›จ์”ฌ ํŽธํ•ด์งˆ ๊ฒƒ์ž…๋‹ˆ๋‹ค.

์ด์ œ ์—ฌ๋Ÿฌ๋ถ„์€!

  • PC์—์„œ ์–ด๋–ค ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด๋กœ๋„ ํ•œ ๋ฒˆ์— ์ ‘์† ๊ฐ€๋Šฅ
  • ๋ชจ๋“  ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด ๊ฐ„ ๋น„๋ฐ€๋ฒˆํ˜ธ ์—†์ด SSH ์ ‘์† ๊ฐ€๋Šฅ
  • ProxyJump๋ฅผ ํ†ตํ•ด ๋„คํŠธ์›Œํฌ ์ œ์•ฝ ์ƒํ™ฉ์—์„œ๋„ ์ ‘์† ๊ฐ€๋Šฅ

๋‹ค์Œ ๊ธ€์—์„œ๋Š” ์—ฐ๊ตฌ์‹ค ์™ธ๋ถ€์˜ ํ™˜๊ฒฝ์—์„œ ์—ฐ๊ตฌ์‹ค ๋‚ด๋ถ€์˜ Raspberry Pi ํด๋Ÿฌ์Šคํ„ฐ๋กœ ์ ‘๊ทผํ•  ์ˆ˜ ์žˆ์„์ง€ ์—†์„์ง€ ์‚ฝ์งˆํ–ˆ๋˜ ๋‚ด์šฉ์„ ๊ณต์œ ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ๊ถ๊ธˆํ•œ ์ ์ด ์žˆ์œผ์‹œ๋ฉด ๋Œ“๊ธ€๋กœ ๋‚จ๊ฒจ์ฃผ์„ธ์š”! ๐Ÿ˜Š


 

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'Research/Raspberry Pi' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€
  • ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด5 ๋ ˆ์‹œํ”ผ #6: Shelly Plug S๋กœ ์‹ค์‹œ๊ฐ„ ์ „๋ ฅ ๋ชจ๋‹ˆํ„ฐ๋ง ์‹œ์ž‘ํ•˜๊ธฐ
  • ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด5 ๋ ˆ์‹œํ”ผ #5: ํฌํŠธํฌ์›Œ๋”ฉ ์—†์ด ์™ธ๋ถ€์—์„œ ์›๊ฒฉ ์ ‘์†ํ•˜๋Š” ๋ฒ•! (feat. Tailscale)
  • ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด5 ๋ ˆ์‹œํ”ผ #3: SSH ํ‚ค ์ธ์ฆ๊ณผ ProxyJump ์„ค์ •์œผ๋กœ ํด๋Ÿฌ์Šคํ„ฐ ๊ด€๋ฆฌ ํšจ์œจํ™”ํ•˜๊ธฐ
  • ๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด5 ๋ ˆ์‹œํ”ผ #2 : PCIe & SSD ์ดˆ๊ณ ์† ํŠœ๋‹
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Ctrl ํ‚ค๋Š” ํ˜ผ์ž์ผ ๋•Œ๋ณด๋‹ค ๋‹ค๋ฅธ ํ‚ค์™€ ํ•จ๊ป˜ํ•  ๋•Œ ์ง„์งœ ํž˜์„ ๋ฐœํœ˜ํ•ฉ๋‹ˆ๋‹ค. ๋ฐ์ดํ„ฐ๋„, ์‚ฌ๋žŒ๋„ ๋งˆ์ฐฌ๊ฐ€์ง€์ž…๋‹ˆ๋‹ค. ์—ฐ๊ฒฐ๋˜๊ณ  ํ๋ฅผ ๋•Œ, ์„ธ์ƒ์€ ๋” ๋‚˜์€ ๋ฐฉํ–ฅ์œผ๋กœ ์›€์ง์ž…๋‹ˆ๋‹ค. ์ €๋Š” ๋ฐ์ดํ„ฐ์˜ ํ๋ฆ„์„ ์„ค๊ณ„ํ•˜๊ณ , ์‹ ๋ขฐ๋ฅผ ์‹ฌ๋Š” ์—”์ง€๋‹ˆ์–ด๊ฐ€ ๋˜๊ณ ์ž ํ•ฉ๋‹ˆ๋‹ค. ์ด๊ณณ์€, ๊ทธ ์—ฌ์ •์˜ ์ž‘์€ ํ”์ ๋“ค์„ ๊ธฐ๋กํ•˜๋Š” ๊ณต๊ฐ„์ž…๋‹ˆ๋‹ค.
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๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด5 ๋ ˆ์‹œํ”ผ #4: ํด๋Ÿฌ์Šคํ„ฐ ํ™•์žฅ - RPi ์ถ”๊ฐ€ ์‹œ SSH ์„ค์ • ๊ฐ€์ด๋“œ
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