๐Ÿ™‚0613 [AWS]

๋ง์ง€ยท2022๋…„ 6์›” 13์ผ
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๐Ÿ“Œ AWS ์ด๋ก 

๐Ÿ“™ AWS ํŠน์žฅ์  (ํผ๋ธ”๋ฆญํด๋ผ์šฐ๋“œ ํŠน์žฅ์ )

โœ”๏ธAPI ์ œ๊ณต์œผ๋กœ ์„œ๋น„์Šค ๊ด€๋ฆฌ ์ž๋™ํ™”; ๋‹จ์ˆœ์ž‘์—…์„ ์Šคํฌ๋ฆฝํŠธ ์ฝ”๋“œ๋กœ ๋งŒ๋“ฆ. IaC (Infra as Code) 'yaml'
->heat, cloudformation๊ณผ ์œ ์‚ฌ.

๐Ÿ“™ AWS ๋น„์šฉ

์˜ˆ์•ฝ : 8๊ฐœ์›” ํ•œ๋ฒˆ์— ๊ฒฐ์ œํ•˜๋ฉด 12๊ฐœ์›” ์ œ๊ณตํ•ด์ฃผ๋Š” ๋ฐฉ์‹. ott์ฒ˜๋Ÿผ.

โœ”๏ธ ์˜ˆ์•ฝ์ธ์Šคํ„ด์Šค - ์ธ์Šคํ„ด์Šค ์œ ํ˜• ๋ณ€๊ฒฝ ๋ถˆ๊ฐ€. ๋ณ€๊ฒฝํ•˜๊ณ ์‹ถ๋‹ค๋ฉด ๊ฐ€๋ณ€ ์˜ˆ์•ฝ ์ธ์Šคํ„ด์Šค๋ฅผ ์‚ฌ์šฉํ•ด์•ผ ํ•จ.

โœ”๏ธ์ŠคํŒŸ์ธ์Šคํ„ด์Šค ; ์ฟ ๋ฒ„๋„คํ‹ฐ์Šค์— ์ ํ•ฉ

๐Ÿ“™ AWS VPC


โœ”๏ธ 1, 2 ,3, 4 ์ˆœ์„œ๋Œ€๋กœ ์ƒ์„ฑ

๐Ÿ“™ AWS VPC Peering


peering ์ง„ํ–‰์‹œ A์—์„œ ํ”„๋ผ์ด๋น—ํ•œ B๋กœ ํ•‘์ด ๋‚˜๊ฐ

๐Ÿ“Œ AWS - ์‹ค์Šต

๐Ÿ“™ ์›น์„œ๋ฒ„ ์ธ์Šคํ„ด์Šค ์ƒ์„ฑ ๋ฐ ๋„๋ฉ”์ธ ์—ฐ๊ฒฐ

โœ”๏ธ 0. EC2 - ์ธ์Šคํ„ด์Šค -์ธ์Šคํ„ด์Šค ์‹œ์ž‘
โœ”๏ธ 1. ์ด๋ฆ„ : WEB01 - ์ด๋ฏธ์ง€ : Amazon Linux 2 Kernel 5.10 AMI 2.0.20220426.0 x86_64 HVM gp2

  • ์ธ์Šคํ„ด์Šค ์œ ํ˜• : t2.micro - ํ‚ค ํŽ˜์–ด : aws-key - ๋„คํŠธ์›Œํฌ; VPC : MY VPC - ์„œ๋ธŒ๋„ท : MY-PUBLIC-SUBNET-2A - ๋ณด์•ˆ๊ทธ๋ฃน ์„ ํƒ : SG-WEB
    โœ”๏ธ 2. ๊ณ ๊ธ‰ ์„ธ๋ถ€ ์ •๋ณด - ์‚ฌ์šฉ์ž ๋ฐ์ดํ„ฐ :
#!/bin/bash
yum install -y httpd git
systemctl enable --now httpd
cd /tmp
git clone https://github.com/hali-linux/html.git
cp  -r /tmp/html/* /var/www/html/

โœ”๏ธ 3. ์•Œ๋ฆฌ๋ฐ”๋ฐ” ์ฝ˜์†” - Alibaba Cloud DNS - Manage DNS - DNS setting - Add Record - host web01 ํ•ด์ฃผ๊ณ  value์— aws์—์„œ ๋งŒ๋“  ์›น์„œ๋ฒ„ ip์ž…๋ ฅ.

โœ”๏ธ 4. ๋„๋ฉ”์ธ์œผ๋กœ ์ ‘์†์‹œ aws web01์›น์„œ๋ฒ„ ์ ‘์† ๊ฐ€๋Šฅ.

๐Ÿ“Œ AWS - ๋„คํŠธ์›Œํฌ ์‹ค์Šต

๐Ÿ“™ VPC ์ƒ์„ฑ

โœ”๏ธ 1. ์ด๋ฆ„ : NEW-VPC - IPv4 CIDR : 192.168.0.0/16 - VPC ์ƒ์„ฑ ํด๋ฆญ

โœ”๏ธ 2. ์ƒ์„ ํ•œ VPC ์„ ํƒ ์ž‘์—… - DNS ํฌ์ŠคํŠธ ์ด๋ฆ„ ํŽธ์ง‘ : ํ™œ์„ฑํ™” - ์ €์žฅ

โœ๏ธ ์ถ”ํ›„์— ํ™œ์„ฑํ™”ํ•ด์„œ ์ธ์Šคํ„ด์Šค์— ์ ์šฉ ๊ฐ€๋Šฅ.

๐Ÿ“™ ์„œ๋ธŒ๋„ท ์ƒ์„ฑ

โœ”๏ธ 0. VPC - ์„œ๋ธŒ๋„ท - ์„œ๋ธŒ๋„ท ์ƒ์„ฑ
โœ”๏ธ 1. VPC ID : NEW-VPC
โœ”๏ธ 1-1. ์„œ๋ธŒ๋„ท ์ด๋ฆ„ : NEW-PUBLIC-SUBNET-2A - ๊ฐ€์šฉ์˜์—ญ : ์„œ์šธ - 2a - CIDR : 192.168.0.0/20
โœ”๏ธ 1-2. ์„œ๋ธŒ๋„ท ์ด๋ฆ„ : NEW-PUBLIC-SUBNET-2B - ๊ฐ€์šฉ์˜์—ญ : ์„œ์šธ - 2b - CIDR : 192.168.16.0/20
โœ”๏ธ 1-3. ์„œ๋ธŒ๋„ท ์ด๋ฆ„ : NEW-PUBLIC-SUBNET-2C - ๊ฐ€์šฉ์˜์—ญ : ์„œ์šธ - 2c - CIDR : 192.168.32.0/20
โœ”๏ธ 1-4. ์„œ๋ธŒ๋„ท ์ด๋ฆ„ : NEW-PUBLIC-SUBNET-2D - ๊ฐ€์šฉ์˜์—ญ : ์„œ์šธ - 2d - CIDR : 192.168.48.0/20
โœ”๏ธ 1-5. ์„œ๋ธŒ๋„ท ์ด๋ฆ„ : NEW-PRIVATE-SUBNET-2A - ๊ฐ€์šฉ์˜์—ญ : ์„œ์šธ - 2a - CIDR : 192.168.64.0/20
โœ”๏ธ 1-6. ์„œ๋ธŒ๋„ท ์ด๋ฆ„ : NEW-PRIVATE-SUBNET-2B - ๊ฐ€์šฉ์˜์—ญ : ์„œ์šธ - 2b - CIDR : 192.168.80.0/20
โœ”๏ธ 1-7. ์„œ๋ธŒ๋„ท ์ด๋ฆ„ : NEW-PRIVATE-SUBNET-2C - ๊ฐ€์šฉ์˜์—ญ : ์„œ์šธ - 2c - CIDR : 192.168.96.0/20
โœ”๏ธ 1-8. ์„œ๋ธŒ๋„ท ์ด๋ฆ„ : NEW-PRIVATE-SUBNET-2D - ๊ฐ€์šฉ์˜์—ญ : ์„œ์šธ - 2d - CIDR : 192.168.112.0/20

๐Ÿ“™ ์ธํ„ฐ๋„ท๊ฒŒ์ดํŠธ์›จ์ด

VPC์™€ ์ธํ„ฐ๋„ท๊ฒŒ์ดํŠธ์›จ์ด๋Š” 1:1 ๋Œ€์‘

โœ”๏ธ 0. VPC - ์ธํ„ฐ๋„ท๊ฒŒ์ดํŠธ์›จ์ด - ์ธํ„ฐ๋„ท๊ฒŒ์ดํŠธ์›จ์ด ์ƒ์„ฑ
โœ”๏ธ 1. ์ด๋ฆ„ : NEW-IGW - ์ธํ„ฐ๋„ท๊ฒŒ์ดํŠธ์›จ์ด ์ƒ์„ฑ ํด๋ฆญ

โœ”๏ธ 2. ์ƒ๋‹จ VPC์— ์—ฐ๊ฒฐ ํด๋ฆญ

โœ”๏ธ 2-1. ์‚ฌ์šฉ๊ฐ€๋Šฅํ•œ VPC: NEW-VPC ์„ ํƒ - ์ธํ„ฐ๋„ท ๊ฒŒ์ดํŠธ์›จ์ด ์—ฐ๊ฒฐ ํด๋ฆญ

๐Ÿ“™ ๋ผ์šฐํŒ… ํ…Œ์ด๋ธ”

โœ”๏ธ 0. VPC - ๋ผ์šฐํŒ…ํ…Œ์ด๋ธ”
โœ”๏ธ 1. ์ž๋™์œผ๋กœ์ƒ์„ ๋œ RTB ๋นˆ ํƒœ๊ทธ ์ด๋ฆ„ NEW-PUBLIC-SUBNET-RTB๋กœ ๋ฐ”๊ฟ”์ฃผ๊ธฐ.

โœ”๏ธ 2. NEW-PUBLIC-SUBNET-RTBํด๋ฆญ- ๋ผ์šฐํŒ… - ๋ผ์šฐํŒ… ํŽธ์ง‘ - ๋ผ์šฐํŒ… ์ถ”๊ฐ€ - ๋Œ€์ƒ : 0.0.0.0/0 - ๋Œ€์ƒ : ์ธํ„ฐ๋„ท๊ฒŒ์ดํŠธ์›จ์ด(NEW-IGW) - ๋ณ€๊ฒฝ์‚ฌํ•ญ ์ €์žฅ

โœ”๏ธ 2-1. NEW-PUBLIC-SUBNET-RTBํด๋ฆญ- ์„œ๋ธŒ๋„ท ์—ฐ๊ฒฐ ํŽธ์ง‘ - new-public๋งŒ ์„ ํƒํ•ด์„œ ์—ฐ๊ฒฐ

โœ”๏ธ 3. ๋ผ์šฐํŒ… ํ…Œ์ด๋ธ” ์ƒ์„ฑ - ์ด๋ฆ„ : NEW-PRIVATE-SUBNET-RTB - VPC : NEW-VPC - ๋ผ์šฐํŒ… ํ…Œ์ด๋ธ” ์ƒ์„ฑ ํด๋ฆญ

โœ”๏ธ 3-1. ์„œ๋ธŒ๋„ท ์—ฐ๊ฒฐ -์„œ๋ธŒ๋„ท ์—ฐ๊ฒฐ ํŽธ์ง‘(๋ช…์‹œ์  ์„œ๋ธŒ๋„ท) ํด๋ฆญ - new-private๋งŒ ์„ ํƒํ•ด์„œ ์—ฐ๊ฒฐ

โœ”๏ธ 4. ์„œ๋ธŒ๋„ท - new-public ์„œ๋ธŒ๋„ท ๊ฐ๊ฐ 1๊ฐœ์”ฉ์„ ํƒ - ์ž‘์—… - ์„œ๋ธŒ๋„ท ์„ค์ • ํŽธ์ง‘ - ์ž๋™ํ• ๋‹นIP์„ค์ • : ํผ๋ธ”๋ฆญ IPv4 ์ฃผ์†Œ ์ž๋™ ํ• ๋‹น ํ™œ์„ฑํ™”
=> a,b,c,d ๋™์ผํ•˜๊ฒŒ 4๋ฒˆ ๋ฐ˜๋ณต

๐Ÿ“™ VPC peering

โœ”๏ธ 0. ๋ฆฌ์ „ ๋ณ€๊ฒฝ : ์•„์‹œ์•„ ํƒœํ‰์–‘(๋„์ฟ„)

๐Ÿ“ขIP๋Œ€์—ญ์ด ๊ฒน์น˜๋ฉด peering์•ˆ๋จ ( ์ถฉ๋Œ ๋ฐœ์ƒ )
=>VPC ์ƒˆ๋กœ ๋งŒ๋“ค์–ด์•ผ ๋ฆฌ์ „๊ธฐ๋ผ๋ฆฌ peering๊ฐ€๋Šฅ.
์„œ์šธ๊ณผ ๋„์ฟ„๋ฅผ ์—ฐ๊ฒฐํ•œ๋‹ค๋ฉด ๋„์ฟ„๋ฅผ ๊ทธ๋Œ€๋กœ ๋‘”๋‹คํ•˜๋”๋ผ๋„ ์„œ์šธ์€ ์ƒˆ๋กœ VPC๋ฅผ ๋งŒ๋“ค์–ด์•ผํ•จ.
๋ชจ๋“  ๋ฆฌ์ „ defualtip CIDR ์€ 172.31.0.0/16

โœ”๏ธ 1. ๋„์ฟ„ - EC2 - ์ธ์Šคํ„ด์Šค ์ƒ์„ฑ - ์ด๋ฆ„ : WEB01-TOKYO - ์ด๋ฏธ์ง€ : Amazon Linux 2 Kernel 5.10 AMI 2.0.20220426.0 x86_64 HVM gp2 - ํ‚คํŽ˜์–ด : ์ƒˆ ํ‚ค ํŽ˜์–ด ์ƒ์„ฑ : ์ด๋ฆ„ : tokyo-key ,RSA, pem. - ๋„คํŠธ์›Œํฌ ์„ค์ • ; ํŽธ์ง‘ ; ํผ๋ธ”๋ฆญ IP ์ž๋™ ํ• ๋‹น : ๋น„ํ™œ์„ฑํ™” - ์ƒˆ ๋ณด์•ˆ๊ทธ๋ฃน ์ƒ์„ฑ - ์ด๋ฆ„ : SG-TOKYO - ssh, ๋ชจ๋“  ICMP-IPv4 ์ถ”๊ฐ€ - ์ธ์Šคํ„ด์Šค ์‹œ์ž‘

โœ”๏ธ 2. ์„œ์šธ - VPC - ํ”ผ์–ด๋ง ์—ฐ๊ฒฐ - ํ”ผ์–ด๋ง ์—ฐ๊ฒฐ ์ƒ์„ฑ - ์ด๋ฆ„ : MY-PCX - VPC ID(์š”์ฒญ์ž) : MY-VPC - ๊ฒŒ์ • : ๋‚ด ๊ณ„์ • - ๋ฆฌ์ „ : ๋‹ค๋ฅธ ๋ฆฌ์ „(๋„์ฟ„) - VPC ID(์ˆ˜๋ฝ์ž) : ๋„์ฟ„ VPC ID ๋ณต์‚ฌ ( ์ƒ์„ฑํ•œ ์ธ์Šคํ„ด์Šค์™€ ์—ฐ๊ฒฐ๋œ VPC ID) ๋ถ™์—ฌ๋„ฃ๊ธฐ - ํ”ผ์–ด๋ง ์—ฐ๊ฒฐ ์ƒ์„ฑ ํด๋ฆญ

โœ”๏ธ 3. ๋„์ฟ„ -VPC -ํ”ผ์–ด๋ง ์—ฐ๊ฒฐ - ์ˆ˜๋ฝ ๋Œ€๊ธฐ์ค‘ ์„ ํƒ- ์ž‘์—… - ์š”์ฒญ ์ˆ˜๋ฝ

โœ”๏ธ 3-1. ์ง€๊ธˆ ๋‚ด ๋ผ์šฐํŒ… ํ…Œ์ด๋ธ” ์ˆ˜์ • ํด๋ฆญ

โœ”๏ธ 3-2. ๋ผ์šฐํŒ… ํŽธ์ง‘ ํด๋ฆญ - ๋ผ์šฐํŒ… ์ถ”๊ฐ€ - ๋Œ€์ƒ : ์„œ์šธ์—์žˆ๋Š” MY-VPC์˜ IP๋ฒ”์œ„ : 10.14.0.0/16 ์ถ”๊ฐ€ - ๋Œ€์ƒ : ํ”ผ์–ด๋ง ์—ฐ๊ฒฐ - ๋ณ€๊ฒฝ์‚ฌํ•ญ ์ €์žฅ ํด๋ฆญ

โœ”๏ธ 4. ์„œ์šธ - ๋ผ์šฐํŒ…ํ…Œ์ด๋ธ” - MY-PUBLIC-SUBNET - ๋ผ์šฐํŒ… ํŽธ์ง‘ - ๋ผ์šฐํŒ… ์ถ”๊ฐ€ - ๋Œ€์ƒ : 172.31.0.0/16 (๋„์ฟ„๋ฆฌ์ „์˜ default VPC ๋ฒ”์œ„) - ๋Œ€์ƒ : ํ”ผ์–ด๋ง ์—ฐ๊ฒฐ - ๋ณ€๊ฒฝ ์‚ฌํ•ญ ์ €์žฅ

โœ”๏ธ 5. ์—ฐ๊ฒฐ ์™„๋ฃŒ. => mobaxterm ์—์„œ ๋„์ฟ„ ์ธ์Šคํ„ด์Šค๋กœ ping ์น˜๋ฉด ๋‚˜๊ฐ.

[ec2-user@ip-10-14-0-164 ~]$ ping 172.31.5.84
PING 172.31.5.84 (172.31.5.84) 56(84) bytes of data.
64 bytes from 172.31.5.84: icmp_seq=1 ttl=255 time=34.7 ms
64 bytes from 172.31.5.84: icmp_seq=2 ttl=255 time=35.6 ms
64 bytes from 172.31.5.84: icmp_seq=3 ttl=255 time=34.7 ms
64 bytes from 172.31.5.84: icmp_seq=4 ttl=255 time=34.7 ms

๐Ÿ“™ ์„œ์šธ์„œ๋ฒ„์—์„œ ๋„์ฟ„ ์„œ๋ฒ„๋กœ ์ง„์ž…ํ•˜๊ธฐ

โœ”๏ธ 0. ์„œ์šธ ํ™ˆ๋””๋ ‰ํ† ๋ฆฌ์— tokyo ํ”„๋ผ์ด๋น— ํ‚ค ๋ณต์‚ฌํ•ด๋‘๊ธฐ.

โœ”๏ธ 1. ์„œ์šธ์„œ๋ฒ„์—์„œ ์•„๋ž˜ ๋ช…๋ น์–ด ์ง„ํ–‰

[ec2-user@ip-10-14-0-164 ~]$ chmod 400 tokyo-key.pem

[ec2-user@ip-10-14-0-164 ~]$ ssh -i tokyo-key.pem ec2-user@172.31.5.84
The authenticity of host '172.31.5.84 (172.31.5.84)' can't be established.
ECDSA key fingerprint is SHA256:wKOtR3CYxIRXX9p+3WtwyHU67V6q+WQBaRmJWqhZvbQ.
ECDSA key fingerprint is MD5:11:43:f8:ae:54:3c:99:df:62:6c:71:3c:40:5c:78:72.
Are you sure you want to continue connecting (yes/no)? y
Please type 'yes' or 'no': yes
Warning: Permanently added '172.31.5.84' (ECDSA) to the list of known hosts.

       __|  __|_  )
       _|  (     /   Amazon Linux 2 AMI
      ___|\___|___|

https://aws.amazon.com/amazon-linux-2/
[ec2-user@ip-172-31-5-84 ~]$


โœ”๏ธ 2. ๋„์ฟ„ ์„œ๋ฒ„์—์„œ ์„œ์šธ ํ”„๋ผ์ด๋น— IP๋กœ ํ•‘ ๋‚˜๊ฐ€๋Š” ๊ฒƒ ํ™•์ธ

[ec2-user@ip-172-31-5-84 ~]$ ping 10.14.0.164
PING 10.14.0.164 (10.14.0.164) 56(84) bytes of data.
64 bytes from 10.14.0.164: icmp_seq=1 ttl=255 time=33.8 ms
64 bytes from 10.14.0.164: icmp_seq=2 ttl=255 time=35.5 ms
64 bytes from 10.14.0.164: icmp_seq=3 ttl=255 time=34.0 ms
64 bytes from 10.14.0.164: icmp_seq=4 ttl=255 time=33.9 ms
64 bytes from 10.14.0.164: icmp_seq=5 ttl=255 time=33.9 ms
64 bytes from 10.14.0.164: icmp_seq=6 ttl=255 time=33.9 ms
64 bytes from 10.14.0.164: icmp_seq=7 ttl=255 time=34.1 ms
64 bytes from 10.14.0.164: icmp_seq=8 ttl=255 time=34.0 ms
64 bytes from 10.14.0.164: icmp_seq=9 ttl=255 time=33.9 ms

๐Ÿ“™ ๋„์ฟ„์„œ๋ฒ„์— ํƒ„๋ ฅ์  IP ๋ถ€์—ฌํ•˜๊ธฐ

โœ”๏ธ 0. ๋„์ฟ„ - EC2 - ํƒ„๋ ฅ์  IP
โœ”๏ธ 1. ํƒ„๋ ฅ์  IP ์ฃผ์†Œ ํ• ๋‹น - ๊ทธ๋Œ€๋กœ ๋‘๊ณ , ํ• ๋‹นํด๋ฆญ
โœ”๏ธ 2. ์ด ํƒ„๋ ฅ์  IP์ฃผ์†Œ ์—ฐ๊ฒฐ ํด๋ฆญ


โœ”๏ธ 2-1. ๋„์ฟ„ ์ธ์Šคํ„ด์Šค ์„ ํƒํ•ด์ฃผ๊ณ  , ์—ฐ๊ฒฐ ํด๋ฆญ

โœ”๏ธ ์™ธ๋ถ€๋กœ ping ๋‚˜๊ฐ€๋Š” ๊ฒƒ ํ™•์ธ

[ec2-user@ip-172-31-5-84 ~]$ ping google.com
PING google.com (216.58.220.110) 56(84) bytes of data.
64 bytes from syd10s01-in-f110.1e100.net (216.58.220.110): icmp_seq=1 ttl=104 time=5.07
64 bytes from syd10s01-in-f110.1e100.net (216.58.220.110): icmp_seq=2 ttl=104 time=5.07

๐Ÿ“™โœ”๏ธโœ๏ธ๐Ÿ“ขโญ๏ธ๐Ÿ“Œ

๐Ÿ“Œ ๊ธฐํƒ€

โญ๏ธ CSP

cloud service povider

โญ๏ธ provisioning

์ปดํ“จํŒ… ๋ฆฌ์†Œ์Šค ์„ค์ •

โญ๏ธ ์ปดํ“จํŒ…, ์ปดํ“จํŠธ

์ปดํ“จํŒ…; CPU RAM ๋„คํŠธ์›Œํฌ ์„œ๋ฒ„ ์Šคํ† ๋ฆฌ์ง€ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜ ์„œ๋น„์Šค ๋“ฑ
์ปดํ“จํŠธ; CPU RAM : ๊ณ„์‚ฐ์— ํ•„์š”ํ•œ ๊ฒƒ๋“ค

โญ๏ธ IaaS; aws / PaaS; azure

โญ๏ธ ๋น„์šฉ ํšจ์œจ์ 

๋ถˆํ•„์š”ํ•œ ๋น„์šฉ ๋‚˜๊ฐ€์ง€ ์•Š๊ฒŒ ํ•˜๋Š” ๊ฒƒ.

โญ๏ธ desired capacity [EKS cluster]

ex)์ธ์Šคํ„ด์Šค 3๊ฐœ ์œ ์ง€ํ•˜๋ผ.

โญ๏ธ Hibernate

์ ˆ์ „

โญ๏ธ ์šฉ๋Ÿ‰ ์˜ˆ์•ฝ

์ธ์Šคํ„ด์Šค power off ์‹œ ์š”๊ธˆ ๋ถ€๊ณผ ์•ˆ ๋จ.(์ฃผ๋ฌธํ˜•)
๊ทธ๋ ‡๋‹ค๊ณ  ํ•ด์„œ ํ•ด๋‹น ๋ฆฌ์†Œ์Šค๊ณต๊ฐ„์ด ํ•ญ์ƒ ํ™•๋ณด๋˜์–ด ์žˆ๋Š” ๊ฒƒ์€ ์•„๋‹˜. ๋•Œ๋ฌธ์— ๋‹ค์‹œ power on ํ–ˆ์„ ๋•Œ error๋‚˜์„œ ์‹คํ–‰์ด ๋˜์ง€ ์•Š์„ ์ˆ˜ ์žˆ์Œ. => ์ด๋Ÿด ๋•Œ ์šฉ๋Ÿ‰ ์˜ˆ์•ฝ ํ•„์š”.

โญ๏ธ next hop

โญ๏ธ ํƒ„๋ ฅ์  IP์‚ญ์ œํ•˜๊ธฐ

  1. ํƒ„๋ ฅ์  IP ์ฃผ์†Œ ์—ฐ๊ฒฐ ํ•ด์ œ
  2. ํƒ„๋ ฅ์  IP ์ฃผ์†Œ ๋ฆด๋ฆฌ์Šค
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