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- ゆずさ ひでやま
- 7 years ago
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3 DNS conf cache /etc/resolv.conf /etc/nsswitch.conf named...22 i
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5 1 2006/05/12 1 DNS M&A phishing phishing DNS DNS DNS DNS DNS&BIND 2 DNS 2.1 jp jp Web 1
6 M&A jp 1 jp 6 com gtld cctld jp phishing 2.2 IP whois 2
7 BIND BIND BIND djbdns cache poisoning HTML HTML MUA example.com example.com example.com. IN NS ns.example.com. IN NS online.goodbank.com. ns.examle.com IN A online.goodbank.com IN A example.com ns.example.com IP online.goodbank.com IP online.goodbank.com phishing MTA MTA BIND
8 IP resolv.conf DNS DDoS DNS Web DNS CNAME CNAME spam OS 4
9 53/udp,tcp IP TTL TTL IP IP NS IP example.ac.jp ns.example.ac.jp ns.exampleac.jp exampleac.jp IP IP P2P 53 IP 2.4 visa.co.jp phishing 5
10 3 ISP DHCP IP PC IP IP URL example.ac.jp Web login.example.ac.jp login.example.ac login.example.ac.jp ID cctld ac cctld ne co ac.jp ac phishing Web cctld jp ac Web 4 DNS spam spam 6
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DNS (BIND, djbdns) JPNIC・JPCERT/CC Security Seminar 2005
DNS 2005 10 6 JPNIC JPCERT/CC Security Seminar 2005 DNS Pharming BIND djbdns 2 DNS DNS (Domain Name System)? IP www.example.jp IP 172.16.37.65 http://www.example.jp/ - http://172.16.37.65/
DNSを「きちんと」設定しよう
DNS WIDE Project DNS DAY - Internet Week 2002 BIND DNS 2 DNS DNS(Domain Name System) named(bind), tinydns(djbdns), MicrosoftDNS(Windows), etc DNS 4 2 (1) www.example.jp IP 10.100.200.1 10.20.30.40 ftp.example.jp
スライド 0
NTT 6OCN OCN IP forvpn IP16 -IP8/16 IP8 -IP1 IP1 forvpn forvpn IP16 ADSL- IP8/16 IP8 ADSL-IP1 IP1 IP8 IP1 forvpn ISDN IP64 IP32 IP16 IP8 IP1 forvpn IP16 IP8 IP1 ISDN-IP8 ISDN-IP1 ISDNforVPN -IP32/64 ADSLforVPN
総セク報告書（印刷発出版_.PDF
- 1 - - 2 - - 3 - - 4 - - 5 - - 6 - - 7 - - 8 - - 9 - - 10 - - 11 - IP 110 110 IP 110 110 - 12-110 2 IP 3 1 110 2 IP 3 1 - 13 - - 14 - IP - 15 - 17 11-16 - - 17 - - 18 - FAX (*1) http://www.kantei.go.jp/jp/singi/titeki2/kettei/040527f.html
DNS DNS(Domain Name System) named(bind), tinydns(djbdns), MicrosoftDNS(Windows), etc 3 2 (1) ( ) IP IP DNS 4
DNS minmin@jprs.co.jp DNS DAY Internet Week 2003 ( ) 2 DNS DNS(Domain Name System) named(bind), tinydns(djbdns), MicrosoftDNS(Windows), etc 3 2 (1) ( ) www.example.jp IP IP 10.20.30.40 DNS 4 PC /etc/resolv.conf
スライド 1
6OCN ADSL B OCN OCN 4610004 1138 OCN FAX 0120047091 SO TEL 0120047131 9200963 41 OCN FAX 0120047219 SO TEL 0120047140 SO SO 117 15 OCN IP 6 OCN IP32IP64 B 6 http://www.ocn.ne.jp/business/ftth/ip32-64/index.html
TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2
![TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2](/thumbs/91/105050540.jpg "TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2")
Japan Registry Service Co., Ltd. JPRS matuura@jprs.co.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.1 TCP IP DNS Windows Internet Week 2002 [2002/12/17] Japan Registry Service
TechnicalBrief_Infoblox_jp.indd
F5 Infoblox DNS DNS F5 DNS DHCP IP DDI Infoblox DNS DNS DNS DNSSEC Nathan Meyer F5 Cricket Liu Infoblox 2 2 DNS DNSSEC DNSSEC DNSSEC Infoblox DNSSEC F Infoblox Delegation CNAME Delegation DNSSEC 11 Authoritative
学生実験
1 学生実験 5 日目 DNS IP ネットワークアーキテクチャ 江崎研究室 DNS Domain Name System 2 インターネット上の名前解決を実現 正引き www.ee.t.u-tokyo.ac.jp 157.82.13.244 逆引き 3 名前空間 インターネットで唯一ドメイン = 名前空間内の範囲 www.ee.t.u-tokyo.ac.jp の場合. (root) com jp
DNS DNS 2002/12/19 Internet Week 2002/DNS DAY 2
DNS 2002 12 19 2003 1 16 Internet Week 2002/DNS DAY ( ) (JPRS) DNS DNS 2002/12/19 Internet Week 2002/DNS DAY 2 DNS SOA SOA TTL $TTL NS MX CNAME 2002/12/19 Internet Week 2002/DNS DAY
Part 1 Part 2 Part 3 Part 1 STEP 0 1 STEP 02 66 // options options { directory "/var/named/"; // zone zone "." { type hint; file "named.root"; // 0.0.127.in-addr.arpa zone zone "0.0.127.in-addr.arpa"
2
Japan Registry Service 2 Japan Registry Service 4 5 6 7 (root) com jp arpa example ne co in-addr e164 www jprs 1.8 www sip 3 1.7.5.2.7.9.2.5 8 Japan Registry Service 10 050-1000-XXXX 050-2000-XXXX 050-3000-XXXX
OCNインターネット接続サービス
1 IP 6 DNS DNS DNS VPN SLA 8 ISP 9 ISP Biz DNS 8 10 11 VPN ADSLISDN IP1 IP8 IP16/32/64 for VPN 2 ADSL 2 47Mbps 5Mbps ISDN 64kbps 1 1 24 // / 1 2PPP over Ether 3NTT/ NTT http://www.flets.com/ NTT http://www.ntt-west.co.jp/flets/
IP S ( :H ) ( ) ( :H22 4
90 30 440 8515 4 101 0532 54 5111 0532 53 1379 IP 1. 2. 3. 11 1 1. 2. 12 0 1 2 3 8 0 8 0 8 S 5 5 0 5 2 1 13 0 5 0 4 (:H22 4 28 ) 1 1 0 5 () (:H22 4 28 ) 1 2 5 0 (: ) ー (: ) ー1 0 0 0 0 (: ) 1/26 50P7 21
johokiso-internet
1 2 (Internet) : ( internet) : IP (The Internet) = Web? Internet, 1960 ARPAnet (Advanced Research Project Agency) : 1988 1989 + 1992 IIJ () 3 4 = (etc.) + = 1 () A B: A3 defaut: A2 A1 A3 B1 defaut: A2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
1 3 1.1..................................... 3 1.2..................................... 4 1.3.................................... 4 2 DNS 5 2.1 DNS...
2015 User-AgentDNS 2016 2 1 5114F058-7 1 3 1.1..................................... 3 1.2..................................... 4 1.3.................................... 4 2 DNS 5 2.1 DNS......................................
ict4.key
IP IP IP IP IP IPv4 32 0-1 IPv6 128 0-1 Web IP 192.47.204.101 IP addressing IP IP IP DNS daito.ac.jp st.daito.ac.jp ic.daito.ac.jp jm.daito.ac.jp DNS =host name....tld www.daito.ac.jp, www.google.com,
1... 5 2... 6 3... 7 4... 8 4.1... 8 4.2... 9 4.3... 9 4.4 SMTP... 10 5 2... 11 5.1 FP Mail... 11 5.2 MX... 11 6 3 /... 12 6.1... 12 6.2... 12 6.3...
1... 5 2... 6 3... 7 4... 8 4.1... 8 4.2... 9 4.3... 9 4.4 SMTP... 10 5 2... 11 5.1 FP Mail... 11 5.2 MX... 11 6 3 /... 12 6.1... 12 6.2... 12 6.3... 12 6.4... 12 6.5... 12 7 4... 13 7.1 URL... 13 8 5...
学生実験 3 日目 DNS IP ネットワークアーキテクチャ 江崎研究室
学生実験 3 日目 DNS IP ネットワークアーキテクチャ 江崎研究室 DNS Domain Name System インターネット上の名前解決を実現 正引き www.ee.t.u-tokyo.ac.jp 157.82.13.244 逆引き 名前空間 インターネットで唯一ドメイン = 名前空間内の範囲 www.ee.t.u-tokyo.ac.jp の場合. (root) com jp ac keio
Google Apps for Business Google Gmail Google Apps Google Apps Google Apps 2
Google Apps Google Apps 1 Google Apps for Business Google Gmail Google Apps Google Apps Google Apps 2 Google Apps 6,000 / 600 / 1 30GB Google PC 99.9% 24 Google SSAE 16 Type II 1 FISMA 2 Google Apps 3
IP 2.2 (IP ) IP 2.3 DNS IP IP DNS DNS 3 (PC) PC PC PC Linux(ubuntu) PC TA 2
IP 2010 10 1 1 IP (IP ) 2 IP IP 2.1 IP (IP ) 1 IP 2.2 (IP ) IP 2.3 DNS IP IP DNS DNS 3 (PC) PC PC PC Linux(ubuntu) PC TA 2 4 1,2 4.1 (Protocol) IP:Internet Protocol) 4.2 internet The Internet (internet)
IPアドレス・ドメイン名資源管理の基礎知識
今さら聞けない IP アドレスとドメイン名 ~ 見抜く力の基礎知識 ~ 一般社団法人日本ネットワークインフォメーションセンター角倉教義 Copyright 2017 Japan Network Information Center 目次 ドメイン名 IP アドレスの役割 ドメイン名 IP アドレスの管理 DNS とルーティング Copyright 2017 Japan Network Information
2.
2. Internet DNS DNS UUCP (JUNET ) ( ) mailconf ( ) DNS name [ttl[ ttl] ] IN type value... < > type (A, MX, CNAME,...) value A (Address) RR (Resource Record) IP IP MX (Mail exchanger) ) RR CNAME (Canonical
DNSSEC の仕組みと現状 平成 22 年 11 月 DNSSEC ジャパン
DNSSEC の仕組みと現状 平成 22 年 11 月 DNSSEC ジャパン アジェンダ 1. DNSとは 2. DNSの動作 3. DNSSECとは 4. DNSSECの動作 5. DNSSECの現状 6. 参考 URL 7. DNSSEC 関連 RFC 2 DNS とは DNS(Domain Name System) とは ホスト ( ドメイン ) 名を IP アドレスに IP アドレスをホスト
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Kaminsky Attack ( ) DNS DAY Tsuyoshi TOYONO (toyono@nttv6.net) ( @JPRS) ( ) ( ) DNS DNS (DNS Cache Poisoning ) ( ) Pharming IP Pharming Cache Poisoning 0 ( (RR) Cache TTL) 1000 19 (1136 ) 50% 5 (271 )
DNS: Domain Name
2012 DNS 2012 8 2 5110B140-4 1 5 1.1..................................... 5 1.2..................................... 6 1.3.................................... 6 2 DNS: Domain Name System 7 2.1...................................
MUA (Mail User Agent) MTA (Mail Transfer Agent) DNS (Domain Name System) DNS MUA MTA MTA MUA MB mailbox MB
MUA (Mail User Agent) MTA (Mail Transfer Agent) DNS (Domain Name System) DNS MUA MTA MTA MUA MB mailbox MB »» SMTP MAIL FROM: 250 sender ok RCPT TO: 250 recipient
目 次
1 2 3 t 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 IP 169 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67
地域と文化資産
11 2005 1980 151 20 65 1 6 37 7 A D E F G H - 2 - 2005 8 6 10:00 10:30 2-432 A D 7 E 8 1-F 1-G - 3 - 2005 H 1970 2005 8 26-4 - A B D E F G H 3 7 8 1 5 6 1 10-5 - 2005 10 1 5 6 1 1 30 2 3 5 3 2 1 2005 8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 http://www.moj.go.jp/press/090130-1.html 55 56 57
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osamu@sfc.keio.ac.jp CNS 18 Web http://www.sfc.wide.ad.jp/~three/itbasic05/ 6/6 7/11 1 ls -la t04xxx student -rwxr-xrx three student - rwx r-x r-x Windows GUI UNIX Windows chmod CNS (755) (ug+x) % chmod
目次
1... 2 2... 3 3... 4 4... 6 5... 7 6... 9 7... 10 8...11 9... 12 10... 13 11 VPN... 16 12LAN PC / /... 19 13... 22 14PC... 23 15... 24 16... 26 17Web... 27 18... 29 19... 30 20... 32 21... 34 22... 36
AC-2
AC-1 AC-2 AC-3 AC-4 AC-5 AC-6 AC-7 AC-8 AC-9 * * * AC-10 AC-11 AC-12 AC-13 AC-14 AC-15 AC-16 AC-17 AC-18 AC-19 AC-20 AC-21 AC-22 AC-23 AC-24 AC-25 AC-26 AC-27 AC-28 AC-29 AC-30 AC-31 AC-32 * * * * AC-33
エンジョイ北スポーツ
28 3 20 85132 http://www.kita-city-taikyo.or.jp 85 63 27 27 85132 http://www.kita-city-taikyo.or.jp 2 2 3 4 4 3 6 78 27, http://www.kita-city-taikyo.or.jp 85132 3 35 11 8 52 11 8 2 3 4 1 2 4 4 5 4 6 8
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1 Linux UNIX-PC LAN. UNIX. LAN. UNIX. 1.1 UNIX LAN. 1.2 Linux PC Linux. 1.3 studenta odd kumabari studentb even kumabari studentc odd kumabari student
LAN 0000000000 6/6, 6/13, 6/20 1 Linux UNIX-PC LAN. UNIX. LAN. UNIX. 1.1 UNIX LAN. 1.2 Linux PC Linux. 1.3 studenta odd kumabari studentb even kumabari studentc odd kumabari studentd even kumabari 1: LAN
guide.PDF
ExpressMail Ver2.0 Copyright ( ) 1998/12/25 REV.1 1 ExpressMail Ver2.0 ExpressMail Ver2.0 ExpressMail Ver2.0 WindowsNT SMTP/POP3/IMAP4 (1) SMTP sendmail 8.8.5 DLL (2) POP3 RFC1939 APOP (3) IMAP4 RFC2060
スライド 0
1 NTT 6OCN OCN IP forvpn 6 -/16 - forvpn forvpn 6 - /16 - forvpn ISDN IP64 IP32 6 forvpn 6 ISDN- ISDN- ISDNforVPN -IP32/64 forvpn forvpn forvpn IP64 IP32 forvpn ISDN 6OCN IP forvpn DSL SecureOCN B ex.)
スライド 0
NTT 6OCN OCN IP forvpn 6 -IP8/16 IP8 - forvpn forvpn 6 ADSL- IP8/16 IP8 ADSL- IP8 forvpn ISDN IP64 IP32 6 IP8 forvpn 6 IP8 ISDN-IP8 ISDN- ISDNforVPN -IP32/64 ADSLforVPN ADSL forvpn IP8 forvpn IP64 IP32
imai@eng.kagawa-u.ac.jp (phishing) URL HP web URL URL Phishing Phishing "fishing" "sophisticated" WikiPedia http://en.wikipedia.org/wiki/phishing "fishing" "phreaking" phreak http://www.atmarkit.co.jp/fsecurity/special/83phishing/phishing00.html
０１．表紙.PDF
IC CRM IT 3 i ii iii iv v vi vii viii .......................................... .................................... -0.3% t-co 2 217-4.0% +5.0 +44.6% +10.0% +5.6% 267 51.9 264 +21.8 500 2002 458 1998
夏目小兵衛直克
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nenkin.PDF
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日経テレコン料金表（2016年4月）
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Microsoft Word - 映画『東京裁判』を観て.doc
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9 10 1 1 1-1 1-1-1 IP IP IP (unique) TLD generic Top Level Domain: gtld country code Top Level Domain: cctld gtldtld 1 gtld.com /.net /.org 2001 16 19 2007 2 16 gtld.museum /.aero /.coop /.jobs /.travel
DNS誕生日攻撃再び
これでいいのか TTL 短い DNS TTL のリスクを考える 2007 年 1 月 26 日民田雅人株式会社日本レジストリサービス JANOG 19@ 沖縄県那覇市 DNS プロトコルのおさらい (1/2) 問合せと応答の単純な往復 この名前の IP アドレスは? IP アドレスは XXXX だよ トランスポートは主に UDP 条件によって TCP になることもある 問合せパケット 応答パケット
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19 1 13 1 ebay ebay Yahoo! 2 ebay Yahoo! BtoB CtoC 1990 Yahoo! 1999 9 ( 3 ebay Yahoo ID 4 ebay ebay 2001 ebay ebay ebay 380 5 1998 ebay ebay ebay B2C e P2P ebay P2P ebay ebay ebay 1999 200 6 ebay ebay
P TCP IP ISDN ISDN TA DSU DSU
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