[B! DNS] Nyohoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

Nyoho id:Nyoho

DNSã«é–¢ã™ã‚‹Nyohoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (21)

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

${{author_name}}$
{{author_name}}{{created}}
{{ #comment }}{{ comment }}{{ /comment }}
- {{ label }}

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹åŒ—æµ·é“å…¬å¼ã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆã®ä¹—ã£å–ã‚Šã«ã¤ã„ã¦çµŒç·¯ã¨åŽŸå› ã€ç¾æ³ã®ã”å ±å‘Šï½œãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹åŒ—æµ·é“å®Ÿè¡Œå§”å“¡ä¼š
ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹åŒ—æµ·é“2025å®Ÿè¡Œå§”å“¡ä¼šã®å®Ÿè¡Œå§”å“¡é•·ã‚’å‹™ã‚ã¦ãŠã‚Šã¾ã™ã€n13uï¼ˆè¥¿æ‘èˆªï¼‰ã§ã™ã€‚ã“ã®åº¦ã¯å½“å®Ÿè¡Œå§”å“¡ä¼šãŒé‹å–¶ã™ã‚‹å…¬å¼ã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆã®ä¹—ã£å–ã‚Šã«ã¤ãã¾ã—ã¦ã€çš†æ§˜ã«å¤§å¤‰ã”å¿ƒé…ã‚’ãŠã‹ã‘ã„ãŸã—ã¾ã—ãŸã€‚ ç¾åœ¨ã€å…¬å¼ã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆã§ã¯å¯¾å¿œã‚’è¡Œã„2024å¹´åº¦é–‹å‚¬åˆ†ã®ãƒšãƒ¼ã‚¸ãŒå…¬é–‹ã•ã‚Œã¦ã„ã¾ã™ã€‚ã¾ãŸã€å¾Œè¿°ã™ã‚‹åŽŸå› ã«åŸºã¥ãã€å„ç¨®è¨å®šã®è¦‹ç›´ã—ã‚’è¡Œã„å†ç™ºé˜²æ¢ç–ã‚’å®Ÿæ–½æ¸ˆã¿ã§ã™ã€‚å…¬å¼ã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆã¸ã®ã‚¢ã‚¯ã‚»ã‚¹ã«ã¤ã„ã¦å•é¡Œãªãè¡Œãˆã‚‹ã“ã¨ã‚’ç¢ºèªã—ã¦ãŠã‚Šã¾ã™ãŒã€DNSãƒ¬ã‚³ãƒ¼ãƒ‰è¨å®šã®åæ˜ ç‰ã§ä¸€éƒ¨ã®ç’°å¢ƒã«ã¦æ£ã—ããªã„ã€ã¾ãŸã¯ä¸æ£ãªã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆãŒè¡¨ç¤ºã•ã‚Œã‚‹å¯èƒ½æ€§ã‚‚ã”ã–ã„ã¾ã™ã€‚åæ˜ ãŒå®Œäº†ã™ã‚‹æ•°æ—¥ç¨‹åº¦ã¯ç¶™ç¶šã—ã¦ã‚¦ã‚§ãƒ–ã‚µã‚¤ãƒˆã®é–²è¦§ã‚’ãŠæŽ§ãˆã„ãŸã ãã‚ˆã†ãŠé¡˜ã„ã„ãŸã—ã¾ã™ã€‚â€»1 è¨˜äº‹å…¬é–‹æ™‚ç‚¹ã«ãŠã„ã¦ã€ä»Šå›žã®ä»¶ã«ã‚ˆã‚‹å€‹äººæƒ…å ±æµå‡ºç‰ã®å…·ä½“çš„ãªè¢«å®³ç‰ã«ã¤ã„ã¦ã¯å ±å‘Šã‚’å—ã‘ã¦ãŠã‚Šã¾ã›ã‚“ã€‚ä¸‡ãŒä¸€ä½•ã‹ã‚‰ã®è¢«å®³ã«éã‚ã‚ŒãŸæ–¹ãŒã„ã¾ã—ãŸã‚‰ãŠæ‰‹
Nyoho 2025/06/06
security

DNS
ãƒªãƒ³ã‚¯
https://www.rfc-editor.org/rfc/rfc8484.txt
Nyoho 2018/10/20
DNS

security
ãƒªãƒ³ã‚¯
ç·å‹™çœï½œDNSã®ä¸–ç•Œçš„ãªé‹ç”¨å¤‰æ›´ã«ä¼´ã†ã‚ãƒ£ãƒƒã‚·ãƒ¥DNSã‚µãƒ¼ãƒãƒ¼ã®è¨å®šç¢ºèªã®ãŠé¡˜ã„ï¼ˆãŠçŸ¥ã‚‰ã›ï¼‰
ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã®é‡è¦è³‡æºã®ä¸–ç•Œçš„ãªç®¡ç†ãƒ»èª¿æ•´æ¥å‹™ã‚’è¡Œã†å›£ä½“ICANNâ€»1ã¯ã€DNSï¼ˆãƒ‰ãƒ¡ã‚¤ãƒ³ãƒãƒ¼ãƒ ã‚·ã‚¹ãƒ†ãƒ ï¼‰ã«ãŠã‘ã‚‹å¿œç”ã®æ”¹ã–ã‚“æ¤œå‡ºç‰ã®ä»•çµ„ã¿ã«ç”¨ã„ã‚‰ã‚Œã‚‹éµã®ã†ã¡ã€æœ€ä¸Šä½ã®ã‚‚ã®ï¼ˆãƒ«ãƒ¼ãƒˆã‚¾ãƒ¼ãƒ³KSKï¼‰ã®æ›´æ”¹ã‚’ã€æœ¬å¹´10æœˆ12æ—¥åˆå‰1æ™‚ï¼ˆæ—¥æœ¬æ™‚é–“ï¼‰ã«è¡Œã†ã“ã¨ã‚’æ±ºå®šã—ã¾ã—ãŸã€‚ ã“ã‚Œã«ä¼´ã„ã€ã‚ãƒ£ãƒƒã‚·ãƒ¥DNSã‚µãƒ¼ãƒãƒ¼ã‚’é‹ç”¨ã—ã¦ã„ã‚‹æ–¹ã«ãŠã„ã¦äº‹å‰ã®å‡¦ç½®ãŒå¿…è¦ã¨ãªã‚‹å ´åˆãŒã‚ã‚Šã¾ã™ã€‚ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã§ã®é€šä¿¡ã‚’æ”¯ãˆã‚‹åŸºç›¤ã®ã²ã¨ã¤ã§ã‚ã‚‹DNSã§ã¯ã€å¿œç”ã®æ”¹ã–ã‚“ã®æ¤œå‡ºç‰ãŒå¯èƒ½ã¨ãªã‚‹ä»•çµ„ã¿ï¼ˆDNS ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£æ‹¡å¼µï¼ˆDNSSECï¼‰ï¼‰ãŒå¹³æˆ22å¹´ã‹ã‚‰é‹ç”¨ã•ã‚Œã¦ã„ã¾ã™ã€‚DNSSECã®é‹ç”¨ã«ã‚ãŸã£ã¦ã¯ã€ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ç¢ºä¿ã®è¦³ç‚¹ã‹ã‚‰ã€ç”¨ã„ã‚‰ã‚Œã¦ã„ã‚‹æš—å·éµã®ä¸ã§æœ€ä¸Šä½ã¨ãªã‚‹ã‚‚ã®ï¼ˆãƒ«ãƒ¼ãƒˆã‚¾ãƒ¼ãƒ³KSKï¼‰ã‚’ã€5å¹´æ¯Žã‚’ç›®å®‰ã«æ›´æ”¹ã™ã‚‹ã“ã¨ã¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ ä»Šèˆ¬ã€DNSSECã®é‹ç”¨é–‹å§‹ã‹ã‚‰5å¹´ä»¥ä¸ŠãŒçµŒéŽã—ã€ãƒ«ãƒ¼ãƒˆã‚¾ãƒ¼ãƒ³KSKã®åˆã‚ã¦ã®ä¸–ç•Œ
Nyoho 2018/10/05
DNS

security
ãƒªãƒ³ã‚¯
Basics_of_DNS_that_application_engineers_should_know - Speaker Deck
ã€Œã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãŒçŸ¥ã‚‹ã¹ãDNSã®åŸºæœ¬ã€ã¨ã„ã†ã‚¿ã‚¤ãƒˆãƒ«ã§ã€builderscon tokyo 2018 ã§ç™»å£‡ã™ã‚‹ã‚¹ãƒ©ã‚¤ãƒ‰ã§ã™
Nyoho 2018/09/03
DNS
ãƒªãƒ³ã‚¯
DNSãƒˆãƒ³ãƒãƒªãƒ³ã‚°ã®æ‰‹æ³• / A technique of DNS tunneling (#ssmjp)
2018/05 ã® #ssmjp ã§ç™ºè¡¨ã—ãŸæ™‚ã®è³‡æ–™ã€‚ @shutingrz
Nyoho 2018/05/25
DNSã‚‚çŸ¥ã‚‰ã‚“ã“ã¨ã ã‚‰ã‘ã˜ã‚ƒã‚ã€‚

DNS
ãƒªãƒ³ã‚¯
DNSã®ä»•çµ„ã¿ã¨èª¿æŸ»æ–¹æ³•ã«ã¤ã„ã¦ - embryo
ä»•äº‹ã§å¤–éƒ¨ã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã«ä¾é ¼ã—ãŸãƒ‰ãƒ¡ã‚¤ãƒ³ç§»è¡ŒãŒæ£ã—ãå‹•ä½œã—ã¦ã„ãªã‹ã£ãŸãŸã‚ã€è‰¯ã„æ©Ÿä¼šã¨æ€ã„DNSã«ã¤ã„ã¦èª¿ã¹ã¾ã—ãŸã€‚ åå‰è§£æ±ºã®æ–¹æ³• ãã‚‚ãã‚‚åå‰è§£æ±ºã¨ã¯ä½•ã‹ã¨ã„ã†ã¨ã€ãƒ‰ãƒ¡ã‚¤ãƒ³ã¨IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’ç´ä»˜ã‘ã‚‹ã“ã¨ã§ã™ã€‚æ‰‹æ³•ã¨ã—ã¦ä»¥ä¸‹ã®2ã¤ãŒä¸Šã’ã‚‰ã‚Œã¾ã™ã€‚ /etc/hostsã«ç›´æŽ¥å¯¾å¿œã‚’è¨˜è¿°ã™ã‚‹æ–¹æ³• /etc/resolve.confã«DNSã‚µãƒ¼ãƒãƒ¼ã®IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’è¨˜è¿°ã—ã€å•ã„åˆã‚ã›ã‚‹æ–¹æ³• ä»Šå›žã¯DNSã‚µãƒ¼ãƒãƒ¼ã«ã‚ˆã‚‹åå‰è§£æ±ºã«ã¤ã„ã¦èª¬æ˜Žã—ã¦ã„ãã¾ã™ã€‚ DNSã«ã‚ˆã‚‹åå‰è§£æ±º ãƒ‰ãƒ¡ã‚¤ãƒ³ãƒ„ãƒªãƒ¼ã«ã‚ˆã‚‹è² è·åˆ†æ•£ å…¨ä¸–ç•Œã«ç„¡æ•°ã«å˜åœ¨ã™ã‚‹ãƒ‰ãƒ¡ã‚¤ãƒ³ã®è§£æ±ºã‚’ä¸€å°ã®ãƒãƒ¼ãƒ ã‚µãƒ¼ãƒãƒ¼ã§æ‹…å½“ã™ã‚‹ã®ã¯ä¸å¯èƒ½ã§ã™ã€‚ãã“ã§DNSã§ã¯ä¸‹è¨˜ã®ã‚ˆã†ã«ã€å„éšŽå±¤ã«æ„å‘³ã‚’æŒãŸã›ã€ä¸‹ä½ã®ãƒ‰ãƒ¡ã‚¤ãƒ³ã‚’ç®¡ç†ã•ã›ã‚‹ã“ã¨ã§åˆ†æ•£åž‹ã®æ§‹é€ ã‚’æ§‹ç¯‰ã—ã¦ã„ã¾ã™ã€‚ ãƒ‰ãƒ¡ã‚¤ãƒ³ãƒ„ãƒªãƒ¼ ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚µãƒ¼ãƒãƒ¼ã«ã‚ˆã‚‹é«˜é€ŸåŒ– ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‹ã‚‰DNSã‚µãƒ¼ãƒãƒ¼ã«å¯¾ã—ã¦ãƒ‰ãƒ¡ã‚¤ãƒ³ã‚’å•ã„
Nyoho 2018/05/11
DNS
ãƒªãƒ³ã‚¯
Announcing 1.1.1.1: the fastest, privacy-first consumer DNS service
Cloudflare's mission is to help build a better Internet. We're excited today to take another step toward that mission with the launch of 1.1.1.1 â€” the Internet's fastest, privacy-first consumer DNS service. This post will talk a little about what that is and a lot about why we decided to do it. (If you're interested in the technical details on how we built the service, check out Ã“lafur GuÃ°mundsson
Nyoho 2018/04/03
DNS
ãƒªãƒ³ã‚¯
ioãƒ‰ãƒ¡ã‚¤ãƒ³éšœå®³ã‚’ç†è§£ã™ã‚‹ãŸã‚ã€DNSã®ä»•çµ„ã¿ã«ã¤ã„ã¦å‹‰å¼·ã—ãŸ - $shibayu36->blog;
å…ˆæ—¥ã€ioãƒ‰ãƒ¡ã‚¤ãƒ³ã®éšœå®³ãŒã‚ã£ãŸã®ã ã‘ã©ã€è‡ªåˆ†ãŒDNSã®ä»•çµ„ã¿ã‚’ã‚ˆãåˆ†ã‹ã£ã¦ã„ãªã„ã›ã„ã§ã€ã„ã¾ã„ã¡ã©ã†ã„ã†ã“ã¨ãŒèµ·ã“ã£ã¦ã„ãŸã®ã‹æŠŠæ¡ã§ããªã‹ã£ãŸã€‚ãã“ã§ã€DNSã®ä»•çµ„ã¿ã«ã¤ã„ã¦è»½ãå‹‰å¼·ã—ãŸã®ã§ã€ãã®ãƒ¡ãƒ¢ã‚’æ®‹ã—ã¦ãŠãã€‚å†…å®¹ã¯é–“é•ã£ã¦ã„ã‚‹ã‹ã‚‚ã—ã‚Œãªã„ã®ã§ã€ãã®å ´åˆã¯æŒ‡æ‘˜ã—ã¦ãã ã•ã„ã€‚ DNSã«ã¤ã„ã¦å¦ã‚“ã ã“ã¨ Software Design 2015/4ã®DNSã®æ•™ç§‘æ›¸ãŒéžå¸¸ã«å‹‰å¼·ã«ãªã£ãŸã€‚ã¾ãŸã€ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆ10åˆ†è¬›åº§ï¼šDNSã‚ãƒ£ãƒƒã‚·ãƒ¥ - JPNICã‚‚å‚è€ƒã«ãªã‚‹ã€‚ æ¨©å¨ã‚µãƒ¼ãƒã¨ãƒ•ãƒ«ãƒªã‚¾ãƒ«ãƒ ã¾ãšã€DNSã‚µãƒ¼ãƒã«ã¯æ¨©å¨ã‚µãƒ¼ãƒã¨ãƒ•ãƒ«ãƒªã‚¾ãƒ«ãƒã®äºŒã¤ã®ç¨®é¡žãŒå˜åœ¨ã™ã‚‹ã€‚ æ¨©å¨ã‚µãƒ¼ãƒ ãƒ‰ãƒ¡ã‚¤ãƒ³ã®æƒ…å ±ã‚’ç®¡ç†ã—ã€è‡ªåˆ†ã®ç®¡ç†ã—ã¦ã„ã‚‹ã‚¾ãƒ¼ãƒ³ã®æƒ…å ±ã‚’æä¾›ã™ã‚‹ã ã‘ã®ã‚µãƒ¼ãƒ å•ã„åˆã‚ã›ãŸãƒ‰ãƒ¡ã‚¤ãƒ³ãŒè‡ªåˆ†ã®ã‚¾ãƒ¼ãƒ³ã®ç®¡ç†ä¸‹ã§ã¯ãªã„å ´åˆã€åˆ¥ã®æ¨©å¨ã‚µãƒ¼ãƒã¸å§”ä»»ã™ã‚‹ã¨ã„ã†æƒ…å ±ã‚’è¿”ã™ ã‚³ãƒ³ãƒ†ãƒ³ãƒ„ã‚µãƒ¼ãƒã¨ã‚‚è¨€ã‚ã‚Œã‚‹? ä¾‹) co
Nyoho 2017/10/05
DNS
ãƒªãƒ³ã‚¯
DNS ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚’ä½œã£ã¦ã¿ã‚ˆã† (1)
DNS ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¨ã¯ UDP ã®ç¿’ä½œã¨ã—ã¦ã€DNS ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã€ã¤ã¾ã‚Š ãƒ›ã‚¹ãƒˆåã‚’å…ƒã«ã€å¯¾å¿œã™ã‚‹ IP ã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’æ±‚ã‚ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ IP ã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’å…ƒã«ã€å¯¾å¿œã™ã‚‹ãƒ›ã‚¹ãƒˆåã‚’æ±‚ã‚ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ä½œã‚Šã¾ã—ã‚‡ã†ã€‚ ã“ã†ã„ã†åå‰è§£æ±ºã‚’è¡Œã†ã‚³ãƒžãƒ³ãƒ‰ã¯ nslookupãƒ»hostãƒ»dig ãªã©ãŒæœ‰åã§ã™ã€‚ ã¾ãŸã€ã“ã‚Œã¨ã¯åˆ¥ã« OS ã«ã¯ resolver (ãƒªã‚¾ãƒ«ãƒã¾ãŸã¯ãƒ¬ã‚¾ãƒ«ãƒ) ã¨å‘¼ã°ã‚Œã‚‹ãƒ©ã‚¤ãƒ–ãƒ©ãƒªãŒæ¨™æº–ã§å®Ÿè£…ã•ã‚Œã¦ã„ã¾ã™ã€‚ å…·ä½“çš„ã«ã¯ res_init(3), res_query(3), res_send(3) ãªã©ã§ã™ã€‚ ã“ã‚Œã¾ã§æœ¬ãƒšãƒ¼ã‚¸ã§ä½œã£ã¦ããŸãƒ—ãƒã‚°ãƒ©ãƒ ã§ã‚‚ gethostbyname(3) ã‚„ inet_aton ã‚’ä½¿ç”¨ã—ã¦ use Socket; $iaddr = inet_aton("X68000.startshop.co.jp"); ã¨ã„ã†ãµã†ã«åå‰è§£æ±ºã‚’è¡Œã£ã¦ã„ã¾ã—ãŸã€‚
Nyoho 2016/04/02
DNS

Network
ãƒªãƒ³ã‚¯
æµ¸é€ã„ã†ãª!
DNSã®å¼•è¶Šã—ã‚’ã—ãŸã‘ã©ã†ã¾ãåˆ‡ã‚Šæ›¿ã‚ã‚‰ãªã„ã€‚ãªã‹ãªã‹æµ¸é€ã—ãªã„ã€‚æ¥è€…ã«å•ã„åˆã‚ã›ã‚‹ã¨ã€ŒDNSã®æµ¸é€ã«ã¯æ•°æ—¥ã‹ã‹ã‚‹ã“ã¨ã‚‚ã‚ã‚Šã¾ã™ã€‚ãŠå¾…ã¡ãã ã•ã„ã€ã¨è¨€ã‚ã‚ŒãŸã€‚ã€€ã€ã€ã€ã¨ã„ã†è©±ã‚’ã‚ˆãèžãã¾ã™ãŒã€ã€Œæµ¸é€ã€(ä¼æ’ã€ä¼æ¬ã€æµ¸æ½¤ã€åæ˜ ãªã©ã¨ã‚‚å‘¼ã°ã‚Œã‚‹)ã£ã¦ãªã‚“ã§ã—ã‚‡ã†? DNSã®è¨å®šã‚’å¤‰æ›´ã™ã‚‹ã®ã¯ã€Œæµ¸é€ã€ã¨ã„ã†è¬Žã®ç¾è±¡ã«è¨—ã™ç¥žé ¼ã¿ã®ã‚ˆã†ãªä½œæ¥ãªã®ã§ã—ã‚‡ã†ã‹ã€‚ 2011.10.16 è¿½è¨˜:ã€Œæµ¸é€ã€ã¨è¨€ã£ã¦ã„ã‚‹ä¾‹ DNSã®ä»•çµ„ã¿ ã¾ãšã€DNSã®ä»•çµ„ã¿ã¨ã€ç‰¹ã«ã‚ãƒ£ãƒƒã‚·ãƒ¥ã®å‹•ä½œã«ã¤ã„ã¦è§£èª¬ã—ã¾ã™ã€‚...ã¨æ€ã„ã¾ã—ãŸãŒã€ã¨ã£ã¦ã‚‚å¤§å¤‰ãªã®ã§çœç•¥ã—ã¾ã™ã€‚ãŸã ã€æ¨©å¨ã‚µãƒ¼ãƒã«ç™»éŒ²ã•ã‚ŒãŸæƒ…å ±ãŒä¸–ç•Œä¸ã®ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚µãƒ¼ãƒã«é…ä¿¡ã•ã‚Œã‚‹ãªã©ã¨ã„ã†ä»•çµ„ã¿ã¯ DNS ã«ã¯å˜åœ¨ã—ã¾ã›ã‚“ã€‚æµ¸é€ã¨ã„ã†äººã¯ãã†æ€ã£ã¦ã„ã‚‹ã‚ˆã†ã§ã™ãŒã€‚(ã“ã‚“ãªãµã†ã«) ã€Œæµ¸é€ã€ã¨ã„ã†è¨€è‘‰ã§é¨™ã•ã‚Œã¦ã„ã¾ã›ã‚“ã‹? äº‹å‰ã«å¤‰æ›´ã—ãŸã„DNSã®ãƒ¬ã‚³ãƒ¼ãƒ‰ã®TTLã‚’çŸãã—
Nyoho 2016/02/20
DNS

network
ãƒªãƒ³ã‚¯
Dnsmasqã§ãŠæ‰‹è»½ã”å®¶åºDNSã‚µãƒ¼ãƒãƒ¼ã‚’ä½œã‚ã†ï½œæŠ€è¡“ãƒ–ãƒã‚°ï½œåŒ—æµ·é“æœå¹Œå¸‚ãƒ»å®®åŸŽçœŒä»™å°å¸‚ã®VRãƒ»ã‚²ãƒ¼ãƒ ãƒ»ã‚·ã‚¹ãƒ†ãƒ é–‹ç™º ã‚¤ãƒ³ãƒ•ã‚£ãƒ‹ãƒƒãƒˆãƒ«ãƒ¼ãƒ—
Dnsmasqã§ãŠæ‰‹è»½ã”å®¶åºDNSã‚µãƒ¼ãƒãƒ¼ã‚’ä½œã‚ã† ã“ã‚“ã«ã¡ã¯ã€mizuno_asã§ã™ã€‚ å˜ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ã‚„ã™ã„ã‹ã‚‰ã§ã‚ã£ãŸã‚Šã€ãƒ†ã‚¹ãƒˆç’°å¢ƒã§åå‰ãƒ™ãƒ¼ã‚¹ã®VirtualHostã‚’ä½¿ã„ãŸã„ã‹ã‚‰ã§ã‚ã£ãŸã‚Šã¨ãã®ç†ç”±ã¯æ§˜ã€…ã§ã™ãŒã€ãƒãƒ¼ã‚«ãƒ«IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’ä½¿ã£ã¦ã„ã‚‹LANå†…ã«ãŠã„ã¦ã‚‚ã€åå‰è§£æ±ºã—ãŸã„ã¨ã„ã†ã‚±ãƒ¼ã‚¹ã¯ã‚ˆãã‚ã‚Šã¾ã™ã‚ˆãã€‚avahiã§ã¯å«Œã ã—ã€hostsã‚’ãƒ¡ãƒ³ãƒ†ã™ã‚‹ã®ã¯å¤§å¤‰ã ã—ã€BINDã‚’ç«‹ã¦ã‚‹ã®ã¯ã‚³ã‚¹ãƒˆçš„ã«é‡ã„â€¦â€¦ã€‚ä»Šæ—¥ã¯ãã‚“ãªæ™‚ã«å½¹ç«‹ã¤ã‹ã‚‚ã—ã‚Œãªã„ã€Dnsmasqã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ Dnsmasqã¨ã¯ï¼Ÿ Dnsmasqã¨ã¯ã€å°è¦æ¨¡ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯å‘ã‘ã®DNS/DHCP/TFTPã‚µãƒ¼ãƒãƒ¼ã§ã™ã€‚Ubuntuãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—ã§ã¯DNSãƒªã‚¾ãƒ«ãƒã¨ã—ã¦NetworkManagerã‹ã‚‰èµ·å‹•ã•ã‚Œã¦ã„ã‚‹ãŸã‚ã€çŸ¥ã‚‰ãšçŸ¥ã‚‰ãšã®ã†ã¡ã«åˆ©ç”¨ã—ã¦ã„ã‚‹äººã‚‚å¤šã„ã®ã§ã¯ãªã„ã§ã—ã‚‡ã†ã‹ã€‚Dnsmasqã¯è‡ªèº«ã®/etc/hostsãƒ•ã‚¡ã‚¤ãƒ«
Nyoho 2015/04/26
DNS
ãƒªãƒ³ã‚¯
[PDF]ç¬¬4å›žã€€PPTPã‚’ä½¿ç”¨ã—ãŸãƒªãƒ¢ãƒ¼ãƒˆã‚¢ã‚¯ã‚»ã‚¹VPNã®ä»•çµ„ã¿
Nyoho 2015/04/23
DNS

network

bind
ãƒªãƒ³ã‚¯
heroku ç”¨ã® DNS ã‚’ PointDNS ã«å¤‰æ›´ã—ãŸ - ãŠã‚‚ã—ã‚webã‚µãƒ¼ãƒ“ã‚¹é–‹ç™ºæ—¥è¨˜
heroku ã¯ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã§ã¯ naked domain (ã‚µãƒ–ãƒ‰ãƒ¡ã‚¤ãƒ³ãŒãªã„ãƒ‰ãƒ¡ã‚¤ãƒ³)ã¯ä½¿ãˆã¾ã›ã‚“ã€‚ãŠãã‚‰ã EC2 ã®åˆ¶ç´„ï¼Ÿã®ã¯ãšã€‚DNS ã«ã‚ˆã£ã¦ã¯æŠœã‘é“ãŒã‚ã‚‹ã®ã§ã™ãŒã€route53 ã§ã¯å›žé¿ãŒã§ãã¾ã›ã‚“ã€‚ route53 ã ã¨ã€ç¾çŠ¶ã§ã¯ã€Œnaked domain ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ãŸã‚‰ www ã®ã‚µãƒ–ãƒ‰ãƒ¡ã‚¤ãƒ³ã«ãƒªãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆã™ã‚‹ã€ã¨ã„ã†è¨å®šã‚’ã™ã‚‹ã®ãŒç²¾ä¸€æ¯ã§ã™ã€‚ åƒ•ã¯åŸºæœ¬ route53 ã‚’åˆ©ç”¨ã—ã¦ã„ã¦ã€ãã®ãŸã‚ heroku ã§é‹ç”¨ã—ã¦ã„ã‚‹ã“ã®ãƒ–ãƒã‚°ã‚‚ä¸€æ™‚ www.willnet.in ã¨ã„ã†ãƒ‰ãƒ¡ã‚¤ãƒ³ã«ã—ã¦ã„ã¾ã—ãŸã€‚ã—ã‹ã—ã‚„ã£ã±ã‚Š naked domain ãŒä½¿ã„ãŸã„ãªâˆ’ã€‚ã¨æ€ã£ãŸã®ã§ã‚„ã‚Šæ–¹ã‚’èª¿ã¹ã¾ã—ãŸã€‚ PointDNS çµè«–ã¨ã—ã¦ã€PointDNS ã¨ã„ã†ã‚µãƒ¼ãƒ“ã‚¹ã‚’ä½¿ã†ã“ã¨ã«ã—ã¾ã—ãŸã€‚ heroku ã® addon ã¨ã—ã¦æä¾›ã•ã‚Œã¦ã„ã‚‹ã“ã¨ heroku ã§ naked domai
Nyoho 2014/10/23
DNS

Heroku
ãƒªãƒ³ã‚¯
ã“ã®éš›ã€herokuã‚¢ãƒ—ãƒªã®DNSã¯Gehirn DNSã‚’ä½¿ãŠã† - komagataã®ãƒ–ãƒã‚°
Legacy routing EOL on October 20th. On Ocober 20th 2014 we are turning off the legacy â€œ.heroku.comâ€ routing path. herokuã®bamboo stackãŒä½¿ã£ã¦ãŸlegacy routingãŒå»ƒæ¢ã•ã‚Œã‚‹ã¨ã„ã†ã“ã¨ã§ã€æ˜”ã€wwwç„¡ã—ã§ã‚¢ã‚¯ã‚»ã‚¹ã—ãŸã„å ´åˆã«ç›´æŽ¥IPã§æŒ‡å®šã—ã¦ãŸç³»ã®ã‚µãƒ¼ãƒ“ã‚¹ãŒã‚¢ã‚¯ã‚»ã‚¹ã§ããªããªã£ãŸã€‚ U2Plusã«ã‚‚é€šçŸ¥ãŒæ¥ã¦ãŸã®ã§ãƒ¡ãƒ³ãƒ†ã—ã¦ã‚‹@tkawaã•ã‚“ã«èžã„ã¦ã¿ãŸã‚‰Gehirnã®DNSã§å¯¾å¿œã—ãŸã‚‰ã—ã„ã€‚ ä¿ºã‚‚ä½¿ã£ã¦ã¿ãŸã‚‰ã‚¢ãƒ©ä¾¿åˆ©ã€‚ALIASãƒ¬ã‚³ãƒ¼ãƒ‰ãŒä½¿ãˆã¦ç„¡æ–™ã§ï¼’ãƒ‰ãƒ¡ã‚¤ãƒ³ã¾ã§ã€ãƒ¬ã‚³ãƒ¼ãƒ‰ç„¡åˆ¶é™ã£ã¦ã®ã¯æµ·å¤–å«ã‚ã¦ã‚ã‚“ã¾ã‚Šç„¡ã„ã‚“ã˜ã‚ƒãªã„ï¼Ÿ Gehirnã£ã¦èžãã‚ˆã†ã«ãªã£ã¦ã‹ã‚‰ã ã„ã¶çµŒã¤ã®ã§ã„ããªã‚Šç„¡ããªã‚‹æ„Ÿã˜ã¯ã—ãªã„ã—ã€ãˆãˆã‚„ã‚“ã‘ï¼ GehirnDNS | ã‚²ãƒ’ãƒ«ãƒ³
Nyoho 2014/10/21
DNS
ãƒªãƒ³ã‚¯
NSDã¨DNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³
æ¨©å¨ãƒãƒ¼ãƒ ã‚µãƒ¼ãƒã®NSDãŒDNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã«å¯¾å¿œã—ãŸã®ã§ã€NSDã¨DNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã«ã¤ã„ã¦ç´¹ä»‹ã—ã¾ã™ã€‚ ãªãŠã€ã“ã®è¨˜äº‹ã¯ã€ŽUnboundã¨DNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã€ã®å§‰å¦¹ç·¨çš„ãªä½ç½®ã¥ã‘ã§ã™ã€‚ã»ã¼åŒã˜ã‚ˆã†ãªDNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã«ã¤ã„ã¦ã®èª¬æ˜ŽãŒã‚ã‚Šã¾ã™ã€‚ NSDã¨ã¯ DNSã‚µãƒ¼ãƒã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã¨ã—ã¦ã¯BINDãŒãƒ‡ãƒ•ã‚¡ã‚¯ãƒˆã‚¹ã‚¿ãƒ³ãƒ€ãƒ¼ãƒ‰ã®ã‚ˆã†ãªä½ç½®ã¥ã‘ã«ãªã£ã¦ã„ã¾ã™ãŒã€BINDä»¥å¤–ã«ã‚‚æ§˜ã€…ãªDNSã‚µãƒ¼ãƒã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ãŒã‚ã‚Šã¾ã™ã€‚ãã®ä¸ã®ä¸€ã¤ã¨ã—ã¦NSDãŒã‚ã‚Šã¾ã™ã€‚ NSDã¯ã‚ªãƒ©ãƒ³ãƒ€ã®NLnet Labsã®W.C.A. Wijngaardsæ°ãŒä¸å¿ƒã¨ãªã£ã¦é–‹ç™ºãŒè¡Œã‚ã‚Œã¦ã„ã¾ã™ã€‚NSDã¯å…ƒã€…ã¯ãƒ«ãƒ¼ãƒˆã‚µãƒ¼ãƒç”¨ã¨ã—ã¦é–‹ç™ºã•ã‚Œã¾ã—ãŸãŒã€ç¾åœ¨ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã¯æ™®é€šã®æ¨©å¨ãƒãƒ¼ãƒ ã‚µãƒ¼ãƒã¨ã—ã¦ã®æ©Ÿèƒ½ã¯ã»ã¼å®Ÿè£…ã•ã‚Œã¦ãŠã‚Šã€ä»£è¡¨çš„ãªæ¨©å¨ãƒãƒ¼ãƒ ã‚µãƒ¼ãƒã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã®ä¸€ã¤ã¨ãªã£ã¦ã„ã¾ã™ ã¡ãªã¿ã«ã€ãƒ«ãƒ¼ãƒˆã‚µãƒ¼ãƒã®Hã¨Kã¨L
Nyoho 2014/10/13
Googleã¨ã‹å¼•ã„ãŸã‚‰ã„ã£ã±ã„å‡ºã¦ãã‚‹ã®ã£ã¦DNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã£ã¦ã„ã†ã®ã ã£ãŸã‚“ã ãªã€œ

DNS

NSD
ãƒªãƒ³ã‚¯
Ansible ã§ EC2 ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã‚’èµ·å‹•ã—ã¦ã€Route53 ã« Public DNS ã‚’ç™»éŒ²ã™ã‚‹
Home > Ansible | AWS > Ansible ã§ EC2 ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã‚’èµ·å‹•ã—ã¦ã€Route53 ã« Public DNS ã‚’ç™»éŒ²ã™ã‚‹ Ansible ã¯ã€æ§‹æˆç®¡ç†ãƒ„ãƒ¼ãƒ«ã¨ã—ã¦èªçŸ¥ã•ã‚Œã¦ã„ã¾ã™ãŒã€AWS é–¢é€£ã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ãŒå¤šæ•°å®Ÿè£…ã•ã‚Œã¦ãŠã‚Šã€å„ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã®èµ·å‹•ã‚„è¨å®šãŒã§ãã¾ã™ã€‚ ã“ã®ã‚¨ãƒ³ãƒˆãƒªã§ã¯ã€Ansible ã§ã€æ¤œè¨¼ç’°å¢ƒç”¨ã® EC2 ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã‚’èµ·å‹•ã—ã¦ã€ãã® Public DNS ã‚’Route 53 ã«ç™»éŒ²ã—ã¦ã¿ã¾ã™ã€‚ ä»¥å‰æ›¸ã„ãŸã“ã®ã‚¨ãƒ³ãƒˆãƒªã®å†…å®¹ ã‚’ Ansible ã§è‡ªå‹•åŒ–ã™ã‚‹ã‚¤ãƒ¡ãƒ¼ã‚¸ã§ã™ãã€‚ æº–å‚™ ä»Šå›žã¯ã€AWS ã‚’æ“ä½œã™ã‚‹ã®ã§ã€Python ã® AWS SDK ã§ã‚ã‚‹ boto ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ãŠãã¾ã™ã€‚boto ã¯ã€pip ãªã‚Šã€yum ãªã‚Šã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã§ãã¾ã™ã€‚ OSX $ pip install boto RHEL / CentOS $ rpm
Nyoho 2014/10/04
aws

ansible

ec2

DNS
ãƒªãƒ³ã‚¯
Cloud DNS documentation Â |Â Google Cloud Documentation
Publish your domain names by using Google's infrastructure for production-quality, high-volume DNS services. Google's global network of anycast name servers provides reliable, low-latency, authoritative name lookups for your domains from anywhere in the world. Go to the Cloud DNS product page for more. Start your proof of concept with $300 in free credit Develop with our latest Generative AI model
Nyoho 2014/04/29
DNS

google
ãƒªãƒ³ã‚¯
Lesser known DNS tools and BIND tricks
quick DNS lookup DNS lookup tool, easy to parse output dnsget guug.de or dig guug.de +short
Nyoho 2014/04/27
DNS

bind
ãƒªãƒ³ã‚¯
å¼·çƒˆãªDNSã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒã‚¤ã‚ºãƒ‹ãƒ³ã‚°æ‰‹æ³•ãŒå…¬é–‹ã•ã‚Œã‚‹:Geekãªãºãƒ¼ã˜
æœ¬æ—¥ã€JPRSãŒç·Šæ€¥ã®æ³¨æ„å–šèµ·ã‚’å…¬è¡¨ã—ã¾ã—ãŸã€‚ ç·Šæ€¥ï¼‰ã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒã‚¤ã‚ºãƒ‹ãƒ³ã‚°æ”»æ’ƒã®å±é™ºæ€§å¢—åŠ ã«ä¼´ã†DNSã‚µãƒ¼ãƒãƒ¼ã®è¨å®šå†ç¢ºèªã«ã¤ã„ã¦ï¼ˆ2014å¹´4æœˆ15æ—¥å…¬é–‹ï¼‰- å•ã„åˆã‚ã›UDPãƒãƒ¼ãƒˆã®ãƒ©ãƒ³ãƒ€ãƒ åŒ–ã®é€Ÿã‚„ã‹ãªç¢ºèªãƒ»å¯¾å¿œã‚’å¼·ãæŽ¨å¥¨ ãã‚Œã«å¯¾ã—ã¦ã€2æœˆä¸æ—¬ã«è„†å¼±æ€§ã‚’ç™ºè¦‹ã—ã¦JPRSã¸ã¨å ±å‘Šã—ã¦ã„ãŸéˆ´æœ¨æ°(è„†å¼±æ€§ã¯å‰é‡Žæ°ã¨ã®å…±åŒç™ºè¦‹)ãŒã€JPRSã®æ³¨æ„å–šèµ·ã§ã¯ã€Œå±é™ºæ€§ã‚’ã‚ˆãç†è§£ã—ã¦å¯¾ç–ã‚’ã¨ã‚‹ã«ã‚ãŸã£ã¦ååˆ†ãªæƒ…å ±ãŒå«ã¾ã‚Œã¦ã„ã‚‹ã¨ã¯ã„ãˆã¾ã›ã‚“ã€ã¨ã—ã¦ã€ä»¥ä¸‹ã®æƒ…å ±ã‚’å…¬é–‹ã—ã¦ã„ã¾ã™ã€‚ é–‹ã„ãŸãƒ‘ãƒ³ãƒ‰ãƒ©ã®ç®± - é•·å¹´æ”¾ç½®ã•ã‚Œã¦ããŸDNSã®æã‚‹ã¹ãæ¬ é™¥ãŒæ˜Žã‚‰ã‹ã« ã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒã‚¤ã‚ºãƒ‹ãƒ³ã‚°ã®é–‹ã„ãŸãƒ‘ãƒ³ãƒ‰ãƒ©ã®ç®± ã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒã‚¤ã‚ºãƒ‹ãƒ³ã‚°ã®é–‹ã„ãŸãƒ‘ãƒ³ãƒ‰ãƒ©ã®ç®± - 2 - æœ¬æ¥ã§ã‚ã‚Œã°ã€ã‚ˆã‚Šä¸Šä½ã‹ã‚‰ã®æ£è¦ã®å›žç”ãŒå„ªå…ˆã•ã‚Œãªã‘ã‚Œã°ãªã‚‰ãªã„ã¯ãšãªã®ã«ã€ä¸‹ä½å´ãŒå„ªå…ˆã•ã‚Œã‚‹ä»•æ§˜ã«ãªã£ã¦ã„ã‚‹ã®ã§ã€å½è£…ã•ã‚ŒãŸãƒ‡ãƒ¼ã‚¿ãŒå„ªå…ˆã•ã‚Œã¦ã—ã¾ã†
Nyoho 2014/04/16
security

DNS
ãƒªãƒ³ã‚¯
ã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒã‚¤ã‚ºãƒ‹ãƒ³ã‚°ã®é–‹ã„ãŸãƒ‘ãƒ³ãƒ‰ãƒ©ã®ç®±
ã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒã‚¤ã‚ºãƒ‹ãƒ³ã‚°ã®é–‹ã„ãŸãƒ‘ãƒ³ãƒ‰ãƒ©ã®ç®± Opened Pandora's box of Cache Poisoning éˆ´æœ¨å¸¸å½¦ 2014.04.15 (Concept by å‰é‡Žå¹´ç´€ 2014.02) / English version èƒŒæ™¯ Kaminsky 2008å¹´ã€Dan Kaminsky æ°ãŒ TTL ã«å½±éŸ¿ã•ã‚Œãªã„æ¯’å…¥ã‚Œæ‰‹æ³•ã‚’ç™ºè¡¨ã—ãŸã€‚ ã—ã‹ã—ã€å½å¿œç”ã®Additional Section ã§æ¯’ãŒå…¥ã‚‹ã¨ã•ã‚ŒãŸã®ã¯èª¤ã‚Šã ã£ãŸã“ã¨ã‚’2011å¹´ã«éˆ´æœ¨ãŒæ˜Žã‹ã«ã—ãŸã€‚ http://www.e-ontap.com/dns/bindmatrix.html MÃ¼ller Bernhard MÃ¼ller ã® "IMPROVED DNS SPOOFING USING NODE RE-DELEGATION", 2008.7.14 https://www.sec-consult.c
Nyoho 2014/04/16
DNS

Cache

security
ãƒªãƒ³ã‚¯
1 2 æ¬¡ã®ãƒšãƒ¼ã‚¸