Port 21 (ポート21)

Port 21（ポート21）

ポート範囲	TCP/UDP	サービス	詳細	情報
21	tcp	ftp	File Transfer Protocol [Control]	IANA
21	udp	ftp	File Transfer Protocol [Control]	IANA
21	sctp	ftp	FTP	IANA
21	tcp,sctp,udp		FTP - コントロールポート	wikipedia
21	tcp,udp,sctp	FTP	[File Transfer Protocol] ファイル転送プロトコル。コンピューター間でファイルを転送するための方式の一つ。広く普及しており、UNIXシステムなど、多くのシステムで実装されている。	通信用語の基礎知識
21	tcp,udp	FTP	[FTP （File Transfer Protocol - control）] インターネットの世界で最も古くから存在するサービス（プロトコル）の一つで、その名の通りファイルを転送するために用いられます（RFC959参照）。実際には、サーバ⇔クライアント間のコマンド送受信を行う「制御コネクション」と、ファイルデータを送受信する「データコネクション」に分かれており、それぞれにポート番号がついています。尚、この通信ポートは、「制御コネクション」です。（「データコネクション」は「ポート番号20 FTP-DATA」を利用します。）FTPは、TELNETなど他のプロトコルと組み合わせて利用するための仕組みを多数もっており、一般的にはWWW-HTTPと組み合わせて利用されることが多いようです。	OCNセキュリティ対策
21	tcp	ftp	[FTP (制御用)]	Apple
20-22, 25, 80, 143, 443, 993	tcp		Bubba Server	PortForward
21, 80	tcp		D-Link DNS-320	PortForward
21, 80, 8234, 8235	udp		Dedicated Micros DS2	PortForward
21	tcp		Edimax NS-2502	PortForward
21	tcp		FTP	PortForward
21	tcp		GeoVision DMIP	PortForward
21, 80, 3389, 4550, 5550, 6550, 9650	tcp		GeoVision TwinDVR with Webcam	PortForward
21, 80, 3389, 4550, 5550, 6550	tcp		GeoVision Webcam	PortForward
21-22, 80, 443	tcp		GoFlex Home Server	PortForward
80, 20-21, 443, 6881-6999, 50500	tcp		Iomega Home Media Network Hard Drive	PortForward
21, 22, 80, 443	tcp		LaCiE HipServ	PortForward
21-22	tcp		McAllister Pet ID	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP HS-210	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP SS-439 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP SS-839 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-100	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-101	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-109	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-109 II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-109 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-109 Pro II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-110	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-112	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-112P	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-119	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-119P II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-119P+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-120	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-121	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-201	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-209	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-209 II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-209 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-209 Pro II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-210	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-212	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-212-E	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-212P	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-219	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-219P	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-219P II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-219P+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-220	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-221	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-239 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-239 Pro II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-239 Pro II+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-259 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-259 Pro+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-409	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-409 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-409U	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-410	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-410U	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-412	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-412U	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-419P	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-419P II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-419P+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-419U	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-419U II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-419U+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-420	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-420U	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-421	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-421U	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-439 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-439 Pro II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-439 Pro II+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-439U-RP	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-439U-SP	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-451	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-451+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-459 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-459 Pro II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-459 Pro+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-459U-RP	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-459U-RP+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-459U-SP	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-459U-SP+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-509 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-559 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-559 Pro II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-559 Pro+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-639 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-659 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-659 Pro II	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-659 Pro+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-809 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-809U-RP	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-859 Pro	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-859 Pro+	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-859U-RP	PortForward
21-22, 25, 80, 443, 445, 873, 3306, 6881-6999, 8080, 9000, 13131, 55536-56559	tcp		QNAP TS-859U-RP+	PortForward
21	tcp		Quick n Easy FTP Server	PortForward
21, 50000-50004	tcp		Serv-U	PortForward
21, 25, 80, 110, 123, 143, 220, 443, 444, 500, 987, 1701, 1723, 3389, 4125, 4500	tcp		Small Business Server	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology CS-406	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology CS-406e	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology CS407	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology CS407e	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS-101	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS-101g+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS-101j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS-106	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS-106e	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS-106j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS1010+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS107	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS107+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS107e	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS108j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS109	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS109+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS109j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS110+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS110j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS111	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS112	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS112j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS115j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS1511+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS1512+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS1515+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS1812+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS1813+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS207	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS207+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS209	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS209+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS209+II	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS209j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS210+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS210j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS211	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS211+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS211j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS212	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS212+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS212j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS213	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS213j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS214play	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS214se	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS215j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS2411+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS3611xs	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS3612xs	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS408	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS409	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS409+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS409slim	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS410	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS410j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS411	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS411+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS411+II	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS411j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS411slim	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS412+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS413	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS413j	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS508	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS509+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS710+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS712+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS713+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology DS715	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS-406	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS212	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS2211+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS2211RP+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS2212+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS2212RP+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS3411xs	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS3412RPxs	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS3412xs	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS407	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS408	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS408-RP	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS409	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS409+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS409RP+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS411	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS810+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS810RP+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS812	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS812+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology RS812RP+	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology USB Station	PortForward
20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863	tcp		Synology USBStation	PortForward
21, 1983	tcp		Tales of Pirates	PortForward
20, 21	tcp		vsftp	PortForward
21, 80, 445, 3999, 8082, 9090	tcp		ZyXEL NSA221	PortForward
21, 80, 445, 3999, 8082, 9090	udp		ZyXEL NSA221	PortForward

202件のデータを全て表示

File Transfer Protocol

File Transfer Protocol（ファイル・トランスファー・プロトコル、FTP、ファイル転送プロトコル）は、ネットワークでファイルの転送を行うための通信プロトコルの1つである。FTPは、インターネット初期から存在する古いプロトコルであり、セキュア（安全）なプロトコルとして設計されていない。ユーザ名やパスワードなどの認証情報を含むすべての通信内容を暗号化せずに転送するなどの問題の他、数多くのセキュリティ脆弱性が指...

Wikipedia ≫

21番ポートは「ウェルノウンポート(well known ports)」です。

0-1023番ポート	ウェルノウンポート(well known ports)
1024-49151番ポート	登録済みポート(registered ports)
49152-65535番ポート	動的/プライベートポート(dynamic/private port)

TCP/UDP PORTインデックス

Port 21（ポート21）