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(備忘録)Well-Known ポート番号まとめ

Posted at

情報処理試験の午前問題で主に出題される、Well-Knownポート番号をまとめました。

プロトコル ポート番号
FTP
: File Transfer Protocol
20/TCP(データ転送用)
21/TCP(制御用)
Telnet 23/TCP、23/UDP
SMTP
: Simple Mail Transfer Protocol
25/TCP(通常メール転送)
587/TCP(サブミッションポート)
DNS
: Domain Name System
53/TCP、53/UDP
HTTP
: Hyper Text Transfer Protocol
80/TCP
POP3
: Post Office Protocol 3
110/TCP
NTP
: Network Time Protocol
123/UDP
SNMP
: Simple Network Management Protocol
161/UDP(マネージャ→エージェント)
162/UDP(エージェント→マネージャ)
HTTPS
: Hyper Text Transfer Protocol Secure
443/TCP
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