Protocol Registries
Protocol parameter registries represent the authoritative record of many of the codes and numbers contained in a variety of Internet protocols. We maintain these records in compliance with the associated technical standards and allocation policies, and we provide this service in coordination with the Internet Engineering Task Force (IETF). To view or download individual protocol registries, naviga
Media Types
Last Updated 2026-04-16 Registration Procedure(s) Expert Review for Vendor and Personal Trees. For Standards Tree, see [RFC6838], Section 3.1. Expert(s) Alexey Melnikov, Darrel Miller, Murray Kucherawy (backup) Reference [RFC6838][RFC4855] Note [RFC2046] specifies that Media Types (formerly known as MIME types) and Media Subtypes will be assigned and listed by the IANA. Procedures for registering
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今回ã¯ã€DNSSECã®æ¤œè¨¼æ©Ÿèƒ½ã‚’有効ã«ã—ãŸã‚ャッシュDNSサーãƒã‚’構築・é‹ç”¨ã™ã‚‹æ–¹æ³•ã«ã¤ã„ã¦è§£èª¬ã™ã‚‹ã€‚ DNSSECã«ãŠã‘ã‚‹ã‚ャッシュDNSサーãƒã®å½¹å‰² ã‚ャッシュDNSサーãƒã¯ã€åå‰è§£æ±ºã‚’ä¾é ¼ã™ã‚‹ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¨æ¨©å¨DNSサーãƒã®é–“ã«ç«‹ã¡ã€å復検索を行ã†ã‚µãƒ¼ãƒã§ã‚る。DNSSECã«ãŠã„ã¦æ¤œè¨¼ã‚’担当ã™ã‚‹ã‚‚ã®ã‚’「ãƒãƒªãƒ‡ãƒ¼ã‚¿ï¼ˆValidator）ã€ã¨å‘¼ã³ã€å¤šãã®å ´åˆã‚ャッシュDNSサーãƒãŒãƒãƒªãƒ‡ãƒ¼ã‚¿ã‚’担当ã™ã‚‹ã€‚ 第2回ã§ã‚‚ç°¡å˜ã«èª¬æ˜Žã—ãŸãŒã€DNSSECã®æ¤œè¨¼ã‚’è¡Œã†ãŸã‚ã«ã¯ä¿¡é ¼ã®é€£éŽ–ã®èµ·ç‚¹ã¨ãªã‚‹æƒ…å ±ãŒå¿…è¦ã¨ãªã‚‹ã€‚ã“れを「トラストアンカー（Trust Anchor）ã€ã¨å‘¼ã¶ã€‚ãƒãƒªãƒ‡ãƒ¼ã‚¿ã¨ãªã‚‹ã‚ャッシュDNSサーãƒã¯ã€ãƒˆãƒ©ã‚¹ãƒˆã‚¢ãƒ³ã‚«ãƒ¼ã‚’起点ã«ã€DNSSECã®ä¿¡é ¼ã®é€£éŽ–を検証ã—ã¦ã„ãã“ã¨ã«ãªã‚‹ã€‚ DNSã®éšŽå±¤æ§‹é€ ã«ãŠã‘る委任ã®èµ·ç‚¹ãŒãƒ«ãƒ¼ãƒˆã‚¾ãƒ¼ãƒ³ã§ã‚ã‚‹ã“ã¨ã‹ã‚‰ã€ä¸€èˆ¬çš„ã«ã¯ãƒ«ãƒ¼ãƒˆã‚¾ãƒ¼ãƒ³ã®å…¬é–‹éµæƒ…å ±ã‚’ãƒˆãƒ©ã‚¹ãƒˆ
SMTPS - Wikipedia
SMTPSã¯ãƒˆãƒ©ãƒ³ã‚¹ãƒãƒ¼ãƒˆå±¤ã«ãŠã„ã¦ã€ãƒ‡ãƒ¼ã‚¿å®Œå…¨æ€§ã€æ©Ÿå¯†æ€§ã¨é€šä¿¡ç›¸æ‰‹ã‚’èªè¨¼ã™ã‚‹æ©Ÿèƒ½ã‚’æä¾›ã™ã‚‹ã€‚アプリケーション層ã§ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¨ã‚µãƒ¼ãƒã¯é€šå¸¸ã®SMTPを利用ã™ã‚‹ãŒã€ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³è‡ªä½“ã¯SSL/TLSã«ã‚ˆã£ã¦ä¿è·ã•ã‚Œã‚‹ã€‚ã“ã®å‹•ä½œã¯ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã®ç¢ºç«‹æ™‚ã«è¡Œã‚れる。クライアントやサーãƒãŒã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã‚’確立ã™ã‚‹éš›ã€SSL/TLSを利用ã™ã‚‹ã‹ã©ã†ã‹ã¯åˆ†ã‹ã‚‰ãªã„ãŸã‚ã€SMTPSã®ãŸã‚ã®ãƒãƒ¼ãƒˆç•ªå·ã‚’割り当ã¦ã‚‹ã“ã¨ãŒä¸€èˆ¬çš„ã§ã‚る。 1997å¹´åˆã‚ã«IANAã¯465番ãƒãƒ¼ãƒˆã‚’SMTPSã«å‰²ã‚Šå½“ã¦ãŸãŒ[1]ã€1998年末ã«STARTTLSãŒåˆ¶å®šã•ã‚Œã‚‹ã¨ã€465番ãƒãƒ¼ãƒˆã®å‰²ã‚Šå½“ã¦ã¯ç„¡åŠ¹ã¨ã•ã‚ŒãŸ[2]。STARTTLSã§ã¯ã€æœ€åˆã«SMTPã§ã®æŽ¥ç¶šã‚’試ã¿ã€é€”ä¸ã§TLSを使ã£ãŸé€šä¿¡ã«åˆ‡ã‚Šæ›¿ãˆã‚‹[3]。ã“ã®ãŸã‚ã€ã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚’張る時点ã§ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¯TLSを利用ã™ã‚‹ã‹ã©ã†ã‹æŒ‡å®šã—ãªãã¦ã‚ˆã„。SMTPクライアントã¯é€šå¸¸ã€ã‚µãƒ¼
RFC 6143: The Remote Framebuffer Protocol
Internet Engineering Task Force (IETF) T. Richardson Request for Comments: 6143 J. Levine Category: Informational RealVNC Ltd. ISSN: 2070-1721 March 2011 The Remote Framebuffer Protocol Abstract RFB ("remote framebuffer") is a simple protocol for remote access to graphical user interfaces that allows a client to view and control a window system on another computer. Because it works at the framebuf
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VNCã®ãƒ—ãƒãƒˆã‚³ãƒ«ã§ã‚ã‚‹ã¨ã“ã‚ã®RFB(Remote Frame Buffer)プãƒãƒˆã‚³ãƒ«ãŒRFCã«ãªã£ã¦ã„ãŸã‚ˆã†ã 。 https://tools.ietf.org/html/rfc6143 RFCã®é€šã‚Šã€VNCã®ãƒ—ãƒãƒˆã‚³ãƒ«ç•ªå·ã‚‚IANAãŒç®¡ç†ã—ã¦ã„る。 http://www.iana.org/assignments/rfb/rfb.xml 個人åãŒãƒãƒ³ãƒãƒ³å‡ºã¦ã„ã‚‹ã‚ãŸã‚ŠãŒã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã®ãƒ—ãƒãƒˆã‚³ãƒ«ã‚‰ã—ã„。実際ã€RFBã¯ä¼çµ±çš„ã«ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ä¸»å°Žã§æ§‹ç¯‰ã•ã‚Œæ˜Žç¢ºãªç®¡ç†ã¯ã•ã‚Œã¦ã“ãªã‹ã£ãŸã€‚è¿‘å¹´ã§ã¯TigerVNCãŒã“れらã®æ‹¡å¼µã®é›†ç´„ã‚’ã—ã¦ã„ãŸãŒã€ã“ã®å½¹å‰²ãŒIANAã«ç§»ã£ãŸã“ã¨ã«ãªã‚‹ã€‚ ã‚‚ã£ã¨ã‚‚ã€RFC 6143を推ã—ã¦ã„ã‚‹VNC実装ã¯ä»Šã®ã¨ã“ã‚ã‚ã¾ã‚Šç„¡ã„よã†ã 。ãã‚‚ãã‚‚RFBãŒãƒ—ãƒãƒˆã‚³ãƒ«ã®åå‰ãªã®ã§RFBクライアントã¨ã‹ã‚µãƒ¼ãƒã®ã‚ˆã†ã«å‘¼ã°ã‚Œã‚‹ã‚ˆã†ãªæ°—ãŒã™ã‚‹ãŒã€VNCã®æ–¹ãŒæœ‰åãªã®ã§ãã¡ã‚‰ãŒä½¿ã‚ã‚Œ
Uniform Resource Identifier (URI) Schemes
Last Updated 2026-03-26 Available Formats XML HTML Plain text Registries Included Below Uniform Resource Identifier (URI) Schemes 'ipn' Scheme URI Allocator Identifiers 'ipn' Scheme URI Default Allocator Node Numbers 'ipn' Scheme URI Well-Known Service Numbers for BPv7 Expert(s) Registry: Mark Baker (primary), Murray Kucherawy (backup). CRI Scheme Number field: Unassigned. Reference [RFC7595][RFC
Protocol Registries
Protocol parameter registries represent the authoritative record of many of the codes and numbers contained in a variety of Internet protocols. We maintain these records in compliance with the associated technical standards and allocation policies, and we provide this service in coordination with the Internet Engineering Task Force (IETF). To view or download individual protocol registries, naviga
カウントダウン開始!? IPv4ã®æž¯æ¸‡ã¾ã§ã‚ã¨12æ—¥ | ãƒãƒƒãƒˆ | マイコミジャーナル
Internet Protocol version 4 IPv4ã®ãƒ—ール枯渇を予測ã—ã¦ã„ã‚‹IPv4 Address Reportã¯ã€20æ—¥ç¾åœ¨ã®æŽ¨æ¸¬ã§ã€IANAã®ãƒ—ールãŒæž¯æ¸‡ã™ã‚‹æ—¥ã‚’2月4æ—¥ã€RIRã®ãƒ—ールãŒæž¯æ¸‡ã™ã‚‹ã®ã‚’10月17æ—¥ã¨è¦‹ç©ã‚‚ã£ã¦ã„る。IANAã®æž¯æ¸‡ã¾ã§ã‚ã¨12æ—¥ã¨ãªã‚‹ã€‚ IPv4 Address Reportã®äºˆæ¸¬æ—¥ã¯å‰å¾Œã™ã‚‹å‚¾å‘ãŒè¦‹ã‚‰ã‚Œã‚‹ã€‚3æ—¥å‰ã®æŽ¨æ¸¬ã‹ã‚‰æ¯”ã¹ã‚‹ã¨ã€ä¸€æ°—ã«1週間ã»ã©äºˆæ¸¬æ—¥ãŒæ—©ã¾ã£ãŸã“ã¨ã«ãªã‚‹ã€‚ã“ã®æ•°å€¤ã¯ã‚ãã¾ã§ã‚‚自動的ã«è¨ˆç®—ã•ã‚Œã¦ã„る値ã§ã‚り確ã‹ãªã‚‚ã®ã§ã¯ãªã„ãŒã€çŠ¶æ³ã‹ã‚‰ã¿ã‚‹ã¨ã ã„ãŸã„2月ä¸ã«IANAã«ãŠã‘ã‚‹IPv4プールãŒæž¯æ¸‡ã™ã‚‹ã®ã§ã¯ãªã„ã‹ã¨ã¿ã‚‰ã‚Œã‚‹ã€‚ IANA IPv4 Address Space Registryã«ã‚ˆã‚Œã°ã€17æ—¥ç¾åœ¨ã§IANAã«ãƒ—ールã•ã‚Œã¦ã„る残りブãƒãƒƒã‚¯æ•°ã¯7ã¤ã€‚IPv4ã®å…¨ã‚¢ãƒ‰ãƒ¬ã‚¹ç©ºé–“ã®2.8%ã»ã©ã€‚最後ã®5ブãƒãƒƒã‚¯ã¯è‡ªå‹•çš„ã«A
IPv4アドレス残り7ï¼…ã€å®Ÿè³ª5ï¼…:Geekãªãºãƒ¼ã˜
5月7æ—¥ã«ã€ä¸–ç•Œã®IPv4アドレス残りãŒç´„7.0ï¼…ã«ãªã‚Šã¾ã—ãŸã€‚ 256個ã‚ã‚‹/8ブãƒãƒƒã‚¯ã®ã†ã¡ã€æ®‹ã‚Šã¯18個ã§ã™ã€‚ ãã®ã†ã¡ã®5個ã¯ã€æœ€å¾Œã®5個ã«ãªã£ãŸæ™‚点ã§è‡ªå‹•çš„ã«ä¸–ç•Œã®5ã¤ã®RIR(Regional Internet Registry,地域インターãƒãƒƒãƒˆãƒ¬ã‚¸ã‚¹ãƒˆãƒª)ã«å‰²ã‚ŠæŒ¯ã‚‰ã‚Œã‚‹ã®ã§ã€å®Ÿè³ªæ®‹ã‚Šã¯13個(残り約5ï¼…)ã«ãªã‚Šã¾ã™ã€‚ 今回ã€RIPE-NCC(ヨーãƒãƒƒãƒ‘ã€ä¸æ±ã€ä¸å¤®ã‚¢ã‚¸ã‚¢)ã«å‰²ã‚ŠæŒ¯ã‚‰ã‚ŒãŸã®ã¯31/8ã¨176/8ã®2ブãƒãƒƒã‚¯ã§ã™ã€‚ 31/8 RIPE-NCC 176/8 RIPE-NCC 最新割り振り表：「IANA IPv4 Address Space Registry〠今年ã¯ã€æ˜¨å¹´ã‚ˆã‚Šã‚‚IPv4アドレスã®å‰²ã‚ŠæŒ¯ã‚Šã‚¹ãƒ”ードãŒæ—©ããªã£ã¦ã„ã¾ã™ã€‚ 今年ã¯5月ã®æ™‚点ã§æ˜¨å¹´ã®å‰²ã‚ŠæŒ¯ã‚Šå€‹æ•°ã§ã‚ã‚‹8ブãƒãƒƒã‚¯ã«é”ã—ã¦ã—ã¾ã„ã¾ã—ãŸã€‚ １月ã«1/8ã¨27/8ãŒAPNICã«å‰²ã‚ŠæŒ¯ã‚‰ã‚Œã€2月ã«50
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