[B! dns] halfrackã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

halfrack id:halfrack

dnsã«é–¢ã™ã‚‹halfrackã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (125)

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DNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã‚’ä½¿ã£ãŸæ™‚ã«ã‚¢ã‚¯ã‚»ã‚¹ãƒ»è² è·ãŒåã‚‹è©± - å…ƒRX-7ä¹—ã‚Šã®é©å½“ãªæ—¥ã€…
æ˜¨æ—¥ã«ç¶šãã€ã‚¢ã‚¯ã‚»ã‚¹ãŒåã‚‹ç³»ã®ã‚¨ãƒ³ãƒˆãƒªã§ã™ã€‚ ãªã«ã‹ã¨è°è«–ã®ãƒã‚¿ã«ãªã‚‹DNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã§ã™ãŒã€ä»Šæ—¥ã¯DNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã‚’ä½¿ã£ãŸæ™‚ã«ã€å„IPã‚¢ãƒ‰ãƒ¬ã‚¹ã«ãã‚‹ãƒªã‚¯ã‚¨ã‚¹ãƒˆæ•°ã«åã‚ŠãŒå‡ºã‚‹ã¨ã„ã†è©±ã€‚ DNSãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã§è¨å®šã•ã‚Œã¦ã„ã‚‹FQDNã«ã€ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã§"host"ã¨ã‹"nslookup"ã®ã‚³ãƒžãƒ³ãƒ‰ã‚’ä½•åº¦ã‹å®Ÿè¡Œã™ã‚‹ã¨ã€è¿”ã£ã¦ãã‚‹IPã‚¢ãƒ‰ãƒ¬ã‚¹ãƒªã‚¹ãƒˆã®é †åºãŒå…¥ã‚Œæ›¿ã‚ã£ã¦ã„ãã“ã¨ãŒç¢ºèªã§ãã‚‹ã¨æ€ã„ã¾ã™ã€‚ åŸºæœ¬çš„ã«ã€ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¯ãã®IPã‚¢ãƒ‰ãƒ¬ã‚¹ãƒªã‚¹ãƒˆã®ä¸Š(æœ€åˆ)ã‹ã‚‰ã‚¢ã‚¯ã‚»ã‚¹ã‚’è¡Œã†ãŸã‚ã€ã“ã‚Œã«ã‚ˆã£ã¦(ä¸€å¿œ)è² è·åˆ†æ•£ãŒå®Ÿç¾ã§ãã‚‹ã¯ãšã§ã™ãŒã€ç‰¹å®šç’°å¢ƒã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã§ã¯ã€ãƒ©ã‚¦ãƒ³ãƒ‰ãƒãƒ“ãƒ³ã¨ã¯ãªã‚‰ãšã«å¿…ãšç‰¹å®šã®IPã‚¢ãƒ‰ãƒ¬ã‚¹ã«ã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹ã‚±ãƒ¼ã‚¹ãŒã‚ã‚‹ã®ã§ã™ã€‚(æ—¢çŸ¥ã®äº‹å®Ÿã§ã™ãŒã€‚) ã“ã®äº‹ã¯ã€Wikipediaã®è©²å½“ãƒšãƒ¼ã‚¸ã«ã‚‚è¨˜è¼‰ã•ã‚Œã¦ã„ã¾ã™ã€‚ ä¸»ã«IPv6ã«ãŠã‘ã‚‹å®›å…ˆã‚¢ãƒ‰ãƒ¬ã‚¹é¸æŠžã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã¨ã—ã¦å®šç¾©ã•ã‚Œ
$halfrack$
halfrack 2023/04/13
ã“ã®æŒ™å‹•ã€ã“ã®æŒ™å‹•ã†ã†ã†ã†ã†ã†ï¼(ãªã«ã‹ã‚ã‚Šã¾ã—ãŸ)

network

ip

dns
ãƒªãƒ³ã‚¯
AWS launches NAT64 and DNS64 capabilities to enable communication between IPv6 and IPv4 services
Starting today, your IPv6 AWS resources in Amazon Virtual Private Cloud (VPC) can use NAT64 (on AWS NAT Gateway) and DNS64 (on Amazon Route 53 Resolver) to communicate with IPv4 services. As you transition your workloads to IPv6 networks, they would continue to need access to IPv4 network and services. With NAT64 and DNS64, your IPv6 resources can communicate with IPv4 services within the same VPC
$halfrack$
halfrack 2021/12/02
ã“ã‚Œã¨åˆã‚ã›ã¦ IPv6 only!! https://aws.amazon.com/jp/blogs/networking-and-content-delivery/introducing-ipv6-only-subnets-and-ec2-instances/

aws

dns

network

ipv6
ãƒªãƒ³ã‚¯
The Case of the Recursive Resolvers - Slack Engineering
Rafael Elvira Staff Software Engineer, Infrastructure On September 30th 2021, Slack had an outage that impacted less than 1% of our online user base, and lasted for 24 hours. This outage was the result of our attempt to enable DNSSEC â€” an extension intended to secure the DNS protocol, required for FedRAMP ModerateÂ â€” but which ultimately led to a series of unfortunate events. The internet relies ve
$halfrack$
halfrack 2021/11/30
9/30 ã® slack éšœå®³ã«ã¤ã„ã¦ / Zone APEX CNAME ã‚’è¸ã‚€ãƒ»ä¸é©åˆ‡ãªãƒãƒ¼ãƒ«ãƒãƒƒã‚¯ãƒ»NSEC ã®é›£ã—ã„æŒ™å‹•ã€è¾›ï¼ï¼ï¼å¿…èªï¼ï¼ï¼

dns

slack

security
ãƒªãƒ³ã‚¯
Configuring DNSSEC signing in Amazon RouteÂ 53 - Amazon Route 53
$halfrack$
halfrack 2021/05/14
dns

security

aws
ãƒªãƒ³ã‚¯
SAD DNSã®ICMP rate limitã‚’ç”¨ã„ãŸã‚µã‚¤ãƒ‰ãƒãƒ£ãƒãƒ«æ”»æ’ƒã«ã¤ã„ã¦ - knqyf263's blog
è„†å¼±æ€§ãƒã‚¿ã¯äººæ°—ãŒãªã„ã“ã¨ãŒéŽåŽ»ã®å‚¾å‘ã‹ã‚‰æ˜Žã‚‰ã‹ã§ã™ãŒã€è‡ªåˆ†ãŒéœ‡ãˆã‚‹ã»ã©æ„Ÿå‹•ã—ãŸã®ã§å¿˜ã‚Œãªã„ãŸã‚ã«ã‚‚æ°—åˆã„å…¥ã‚Œã¦å¤§ä½œã‚’æ›¸ãã¾ã—ãŸã€‚ è¦ç´„ èƒŒæ™¯ SAD DNSã®è§£èª¬ å…¨ä½“åƒ UDPã®ã‚½ãƒ¼ã‚¹ãƒãƒ¼ãƒˆã«ã¤ã„ã¦ ICMP rate limit per-IP rate limit global rate limit Public-Facing Source Portã®ã‚¹ã‚ãƒ£ãƒ³ Private Source Portã®ã‚¹ã‚ãƒ£ãƒ³ æ”»æ’ƒWindowã®æ‹¡å¼µ ã‚µã‚¤ãƒ‰ãƒãƒ£ãƒãƒ«æ”»æ’ƒã§UDPã‚½ãƒ¼ã‚¹ãƒãƒ¼ãƒˆã‚’æŽ¨æ¸¬ã—ã¦ã¿ã‚‹ å¯¾ç– æ”»æ’ƒå®Ÿç¾æ€§ ã¾ã¨ã‚ è¦ç´„ ã¡ã‚ƒã‚“ã¨ç†è§£ã™ã‚‹ã®çµæ§‹é›£ã—ã„ã¨ã„ã†è©±ãŒã‚ã£ãŸã®ã§ã€å…ˆã«è¦ç´„ã—ã¦ãŠãã¾ã™ã€‚é›°å›²æ°—ã ã‘ã§ã‚‚æŽ´ã‚“ã§ã‚‚ã‚‰ãˆã‚‹ã¨å¬‰ã—ã„ã§ã™ã€‚ DNSã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒã‚¤ã‚ºãƒ‹ãƒ³ã‚°ã®æ–°ã—ã„æ‰‹æ³•ã¨ã—ã¦SAD DNSãŒç™ºè¡¨ã•ã‚ŒãŸ ã‚ãƒ£ãƒƒã‚·ãƒ¥ãƒã‚¤ã‚ºãƒ‹ãƒ³ã‚°ã®ãŸã‚ã«ã¯æ¨©å¨DNSã‚µãƒ¼ãƒæ£è¦ã®å¿œç”ã‚’è¿”ã™ã‚ˆã‚Šå…ˆã«æ”»æ’ƒè€…ãŒ
$halfrack$
halfrack 2021/05/14
dns

security
ãƒªãƒ³ã‚¯
SAD DNS Explained
This week, at the ACM CCS 2020 conference, researchers from UC Riverside and Tsinghua University announced a new attack against the Domain Name System (DNS) called SAD DNS (Side channel AttackeD DNS). This attack leverages recent features of the networking stack in modern operating systems (like Linux) to allow attackers to revive a classic attack category: DNS cache poisoning. As part of a coordi
$halfrack$
halfrack 2021/05/14
dns

security
ãƒªãƒ³ã‚¯
SAD DNS
ï»¿
$halfrack$
halfrack 2021/05/14
dns

security
ãƒªãƒ³ã‚¯
https://www.forescout.com/resources/namewreck-breaking-and-fixing-dns-implementations/
$halfrack$
halfrack 2021/04/15
dns

security
ãƒªãƒ³ã‚¯
å…¨å›½åˆæ‘˜ç™ºã€Œãƒ‰ãƒ¡ã‚¤ãƒ³åãƒã‚¤ã‚¸ãƒ£ãƒƒã‚¯ã€ã€€ã‚µã‚¤ãƒˆä¹—ã£å–ã‚Šé‡‘è¦æ±‚ã€€äº¬éƒ½åºœè¦ã€å®¹ç–‘ã§ç”·2äººé€®æ•ï½œç¤¾ä¼šï½œåœ°åŸŸã®ãƒ‹ãƒ¥ãƒ¼ã‚¹ï½œäº¬éƒ½æ–°èž
å…¨å›½åˆæ‘˜ç™ºã€Œãƒ‰ãƒ¡ã‚¤ãƒ³åãƒã‚¤ã‚¸ãƒ£ãƒƒã‚¯ã€ã€€ã‚µã‚¤ãƒˆä¹—ã£å–ã‚Šé‡‘è¦æ±‚ã€€äº¬éƒ½åºœè¦ã€å®¹ç–‘ã§ç”·2äººé€®æ• 2021å¹´3æœˆ9æ—¥ 15:47 ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆä¸Šã®ä½æ‰€ã«å½“ãŸã‚‹ã€Œãƒ‰ãƒ¡ã‚¤ãƒ³åã€ã‚’ä¹—ã£å–ã‚Šã€ã‚µã‚¤ãƒˆé‹å–¶è€…ã«å…ƒã«æˆ»ã™ãŸã‚ã®èº«ä»£é‡‘ã‚’è¦æ±‚ã—ãŸã¨ã—ã¦ã€äº¬éƒ½åºœè¦ã‚µã‚¤ãƒãƒ¼çŠ¯ç½ªå¯¾ç–èª²ã¨å—ç½²ã¯ï¼™æ—¥ã€æå–æœªé‚ã®ç–‘ã„ã§ã€æ»‹è³€çœŒè‰æ´¥å¸‚ã®è‡ªç§°ï¼©ï¼´ã‚³ãƒ³ã‚µãƒ«ã‚¿ãƒ³ãƒˆã®ç”·ï¼ˆï¼”ï¼’ï¼‰ã¨æ±äº¬éƒ½æ¸¯åŒºã®ä¼šç¤¾å“¡ã®ç”·ï¼ˆï¼’ï¼–ï¼‰ã‚’é€®æ•ã—ãŸã€‚ ã€Œãƒ‰ãƒ¡ã‚¤ãƒ³åãƒã‚¤ã‚¸ãƒ£ãƒƒã‚¯ã€ã¨å‘¼ã°ã‚Œã‚‹ã‚µã‚¤ãƒãƒ¼çŠ¯ç½ªã§ã€å›½å†…ã§ã¯ï¼’ï¼ï¼‘ï¼”å¹´ã”ã‚ã‹ã‚‰è¢«å®³ãŒç›¸æ¬¡ã„ã§ã„ã‚‹ã€‚ï¼©ï¼´å°‚é–€æ©Ÿé–¢ã«ã‚ˆã‚‹ã¨äº‹ä»¶ã¨ã—ã¦æ‘˜ç™ºã•ã‚Œã‚‹ã®ã¯åˆã¨ã¿ã‚‰ã‚Œã‚‹ã€‚ ãƒ‰ãƒ¡ã‚¤ãƒ³åã¯ã€ã‚µã‚¤ãƒˆã«æŽ¥ç¶šã™ã‚‹ãŸã‚ã®ï¼µï¼²ï¼¬ã®ã†ã¡ã€å†’é ã®ã€Œï½ˆï½”ï½”ï½ï¼šï¼ï¼ï½—ï½—ï½—ï¼Žã€ã«ç¶šãéƒ¨åˆ†ã€‚å°‚é–€æ©Ÿé–¢ï¼ªï¼°ï¼£ï¼¥ï¼²ï¼´ã‚³ãƒ¼ãƒ‡ã‚£ãƒãƒ¼ã‚·ãƒ§ãƒ³ã‚»ãƒ³ã‚¿ãƒ¼ã«ã‚ˆã‚‹ã¨ã€ãƒ‰ãƒ¡ã‚¤ãƒ³åãŒä¹—ã£å–ã‚‰ã‚Œã‚‹ã¨ã‚µã‚¤ãƒˆã®å†…å®¹ãŒæ”¹ã–ã‚“ã•ã‚ŒãŸã‚Šã€å½ã‚µã‚¤ãƒˆã«èª˜å°Žã•ã‚ŒãŸã‚Šã™ã‚‹ã€‚ï¼‘ï¼™å¹´ã«ã¯äººæ°—ã‚¢ãƒ‹ãƒ¡ã€Œãƒ©ãƒ–ãƒ©
$halfrack$
halfrack 2021/03/09
domain

security

internet

dns
ãƒªãƒ³ã‚¯
JPRSç”¨èªžè¾žå…¸ï½œNS Takeoverï¼ˆã‚¨ãƒŒã‚¨ã‚¹ãƒ†ã‚¤ã‚¯ã‚ªãƒ¼ãƒãƒ¼ï¼‰
ã‚ã‚‹ã‚¾ãƒ¼ãƒ³ã®è¦ªã‚¾ãƒ¼ãƒ³ã®å§”ä»»æƒ…å ±ï¼ˆNSãƒªã‚½ãƒ¼ã‚¹ãƒ¬ã‚³ãƒ¼ãƒ‰ï¼‰ãŒé©åˆ‡ã«è¨å®šã•ã‚Œã¦ãŠã‚‰ãšã€lame delegationã«ãªã£ã¦ã„ã‚‹ã“ã¨ã‚’åˆ©ç”¨ã—ã€ç®¡ç†æ¨©é™ã‚’æŒãŸãªã„ç¬¬ä¸‰è€…ãŒãã®ã‚¾ãƒ¼ãƒ³ï¼ˆãƒ‰ãƒ¡ã‚¤ãƒ³åï¼‰ã®ä¹—ã£å–ã‚Šã‚’å›³ã‚‹æ”»æ’ƒæ‰‹æ³•ã§ã™ã€‚ å¤–éƒ¨ã®DNSã‚µãƒ¼ãƒ“ã‚¹ã‚„ãƒ›ã‚¹ãƒ†ã‚£ãƒ³ã‚°ã‚µãƒ¼ãƒ“ã‚¹ãªã©ã‚’åˆ©ç”¨ã™ã‚‹å ´åˆã€ãã®ã‚µãƒ¼ãƒ“ã‚¹ã‚’åˆ©ç”¨ã™ã‚‹ãŸã‚ã®å§”ä»»æƒ…å ±ã‚’ã€è¦ªã‚¾ãƒ¼ãƒ³ã«ç™»éŒ²ãƒ»è¨å®šã—ã¾ã™ã€‚ä¾‹ãˆã°ã€example.jpã®ç®¡ç†è€…ãŒns-99.example.netã§é‹å–¶ã•ã‚Œã‚‹DNSã‚µãƒ¼ãƒ“ã‚¹ã‚’åˆ©ç”¨ã™ã‚‹å ´åˆã€jpã‚¾ãƒ¼ãƒ³ã«ä»¥ä¸‹ã®å§”ä»»æƒ…å ±ã‚’ç™»éŒ²ãƒ»è¨å®šã—ã¾ã™ã€‚ ãã®å¾Œã€example.jpã®é‹ç”¨çµ‚äº†ã«ã‚ˆã‚Šå½“è©²ã‚µãƒ¼ãƒ“ã‚¹ã‚’è§£ç´„ã™ã‚‹ã¨ã€ns-99.example.netã«è¨å®šã•ã‚ŒãŸexample.jpã‚¾ãƒ¼ãƒ³ã¯å‰Šé™¤ã•ã‚Œã¾ã™ãŒã€è¦ªã‚¾ãƒ¼ãƒ³ã«ç™»éŒ²ãƒ»è¨å®šã•ã‚ŒãŸå§”ä»»æƒ…å ±ã¯å‰Šé™¤ã•ã‚Œãšã€ãã®ã¾ã¾æ®‹ã‚Šã¾ã™ã€‚ã“ã®å§”ä»»æƒ…å ±ã‚’å‰Šé™¤ã—ãªã‹ã£ãŸå ´åˆã€example.jpã‚¾ãƒ¼ãƒ³ã¯l
$halfrack$
halfrack 2021/03/09
ãƒ‘ãƒƒã¨èª¬æ˜Žã™ã‚‹æ™‚ã®è³‡æ–™ã¨ã—ã¦ã‚ˆã‹ã£ãŸ

dns

internet

security
ãƒªãƒ³ã‚¯
https://techcrunch.com/2021/02/15/notions-hours-long-outage-was-caused-by-phishing-complaints/
$halfrack$
halfrack 2021/02/17
â€œuser-generated Notion pages connected to phishingâ€ ã§ãƒ†ã‚¤ã‚¯ãƒ€ã‚¦ãƒ³ã²ãˆã‡ã‡ï¼ï¼

domain

dns

internet

web
ãƒªãƒ³ã‚¯
Configuring DNSSEC signing and validation with Amazon Route 53 | Amazon Web Services
Networking & Content Delivery Configuring DNSSEC signing and validation with Amazon Route 53 AWS now supports DNS Security Extensions (DNSSEC) signing on public zones for Amazon Route 53 and validation for Amazon Route 53 Resolver. DNSSEC is a specification that provides data integrity assurance for DNS and helps customers meet compliance mandates (for example, FedRAMP and security standards such
$halfrack$
halfrack 2021/02/05
step by step KSK roleover ã¨ã„ã†æ„Ÿã˜ã / "perform this every few months" ã‚ã‚“ã©ãã•ã„ãª...

dnssec

dns

aws
ãƒªãƒ³ã‚¯
DNSpooqã®è„†å¼±æ€§è©³ç´°ã¨æ”»æ’ƒã‚³ãƒ¼ãƒ‰è§£èª¬ - knqyf263's blog
æ¦‚è¦ è¦ç´„ è©³ç´° èƒŒæ™¯ å‰æ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆä¸Šã«å…¬é–‹ã•ã‚ŒãŸdnsmasq LANå†…ã®ãƒžã‚·ãƒ³ãŒæ”»æ’ƒè€…ã®æ”¯é…ä¸‹ã«ã‚ã‚‹ LANå†…ã®ãƒžã‚·ãƒ³ã«æ”»æ’ƒè€…ç®¡ç†ã®Webã‚µã‚¤ãƒˆã‚’é–²è¦§ã•ã›ã‚‹ã“ã¨ãŒã§ãã‚‹ å½±éŸ¿ ä¸é–“è€…æ”»æ’ƒ æ±šæŸ“æ‹¡å¤§ DDoS/Reverse DDoS CVE-2020-25684: ãƒãƒ¼ãƒˆã®å¤šé‡åŒ– CVE-2020-25685: è„†å¼±ãªCRC32ã®åˆ©ç”¨ CVE-2020-25686: åŒä¸€ãƒ‰ãƒ¡ã‚¤ãƒ³åã«å¯¾ã™ã‚‹è¤‡æ•°ã‚¯ã‚¨ãƒªç™ºè¡Œ DNSãƒ•ã‚©ãƒ¯ãƒ¼ãƒ€ã«ãŠã‘ã‚‹ãƒ¬ã‚¹ãƒãƒ³ã‚¹ã®æœªæ¤œè¨¼ çµ„ã¿åˆã‚ã›ã‚‹ ãƒ‰ãƒ¡ã‚¤ãƒ³åã®ç™»éŒ² ã‚½ãƒ¼ã‚¹IPã‚¢ãƒ‰ãƒ¬ã‚¹ã®å½è£… CRC32ã®è¡çª æ”»æ’ƒã®æµã‚Œ ãƒ–ãƒ©ã‚¦ã‚¶ã‹ã‚‰ã®æ”»æ’ƒ æ¤œè¨¼ç«¯æœ« æ”»æ’ƒã®æˆåŠŸç¢ºçŽ‡ PoC fowarder cache attacker å¤§é‡ã‚¯ã‚¨ãƒªã®é€ä¿¡ å½è£…ãƒ¬ã‚¹ãƒãƒ³ã‚¹ã®é€ä¿¡ é«˜é€ŸåŒ–ã®è©± å®Ÿè¡Œ å¯¾ç–ãƒ»ç·©å’Œç– ä½™è«‡ ã¾ã¨ã‚ æ¦‚è¦ å…ˆæ—¥DNSpooqã¨ã„ã†è„†å¼±æ€§ãŒå…¬é–‹ã•ã‚Œã¾ã—ãŸã€‚ ww
$halfrack$
halfrack 2021/01/25
CRC32 ãªã‚‹ã»ã©â€¦

dns

dnsmasq

security
ãƒªãƒ³ã‚¯
Announcing Amazon Route 53 support for DNSSEC
Today, Amazon Web Services announced the launch of Domain Name System Security Extensions (DNSSEC) for Amazon Route 53. You can now enable DNSSEC signing for all existing and new public hosted zones, and enable DNSSEC validation for Amazon Route 53 Resolver. Amazon Route 53 DNSSEC provides data origin authentication and data integrity verification for DNS and can help customers meet compliance man
$halfrack$
halfrack 2020/12/18
è‡ªå‹•ç½²åã ãƒ»ãƒãƒ¼ãƒ«ã‚ªãƒ¼ãƒãƒ¼ã¨ãŠå¼•è¶Šã—ã®æŒ™å‹•ãŒæ°—ã«ãªã‚‹

dnssec

dns

aws
ãƒªãƒ³ã‚¯
æŽ²è¼‰è¨˜äº‹2014å¹´ / æ ªå¼ä¼šç¤¾æ—¥æœ¬ãƒ¬ã‚¸ã‚¹ãƒˆãƒªã‚µãƒ¼ãƒ“ã‚¹ï¼ˆJPRSï¼‰
2014å¹´ã®ãƒ‰ãƒ¡ã‚¤ãƒ³åé‡è¦ãƒ‹ãƒ¥ãƒ¼ã‚¹ ãƒ»2014/12/26 ãƒ‰ãƒ¡ã‚¤ãƒ³åãƒã‚¤ã‚¸ãƒ£ãƒƒã‚¯ã‚‚å¤šç™ºï¼2014å¹´ã€Œãƒ‰ãƒ¡ã‚¤ãƒ³åãƒ‹ãƒ¥ãƒ¼ã‚¹ã€ (ASCII.jp) http://ascii.jp/elem/000/000/964/964380/ DNS Tipsï¼ˆ2014å¹´ï¼‰ ãƒ»2014/12/22 åå‰è§£æ±ºã¨ã¯ä½•ã§ã™ã‹ï¼Ÿ (ï¼ IT) http://www.atmarkit.co.jp/ait/articles/1412/19/news013.html ãƒ»2014/12/22 æ¨©å¨DNSã‚µãƒ¼ãƒãƒ¼ã¯ã©ã®ã‚ˆã†ã«ç›£è¦–ã™ã‚Œã°ã‚ˆã„ã§ã™ã‹ï¼Ÿ (ï¼ IT) http://www.atmarkit.co.jp/ait/articles/1412/19/news014.html ãƒ»2014/12/22 digã‚³ãƒžãƒ³ãƒ‰ã‚„drillã‚³ãƒžãƒ³ãƒ‰ã®ä½¿ã„æ–¹ã‚’æ•™ãˆã¦ãã ã•ã„ (ï¼ IT) http://www.atmarkit.co.jp/a
$halfrack$
halfrack 2020/10/22
JPRS ã®ã“ã®ãƒ™ãƒ¼ã‚¸ã¯æ´å²è³‡æ–™ã¨ã—ã¦ä¾¿åˆ©ã ãªã

dns

internet
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STUDIO åŽŸå› åˆ¤æ˜Žã®ãŠçŸ¥ã‚‰ã›ã¨å¯¾å¿œç–ã«ã¤ã„ã¦
A new tool that blends your everyday work apps into one. It's the all-in-one workspace for you and your team
$halfrack$
halfrack 2020/09/25
æœ‰å®³ãªã‚³ãƒ³ãƒ†ãƒ³ãƒ„ã‚’ä½œã‚‰ã‚ŒãŸ UGC ã‚µãƒ¼ãƒ“ã‚¹ãŒãƒ‰ãƒ¡ã‚¤ãƒ³åã®ãƒ†ã‚¤ã‚¯ãƒ€ã‚¦ãƒ³ã‚’é£Ÿã‚‰ã£ãŸäº‹ä¾‹ã€‚è‰²ã€…ã¨æ€–ã„ï¼ï¼

web

internet

dns
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ãƒ ãƒ¼ãƒ ãƒ¼ãƒ‰ãƒ¡ã‚¤ãƒ³ + .xyzãƒ‰ãƒ¡ã‚¤ãƒ³ ã§åˆ©ç”¨åˆ¶é™ã«ã‹ã‹ã‚‹ã€‚ã“ã®çµ„ã¿åˆã‚ã›ã¯ã‚ªã‚¹ã‚¹ãƒ¡ã—ãªã„ - æˆ–ã‚‹é˜¿å‘†ã®è¨˜
ãƒ ãƒ¼ãƒ ãƒ¼ãƒ‰ãƒ¡ã‚¤ãƒ³ + .xyzãƒ‰ãƒ¡ã‚¤ãƒ³ ã§åˆ©ç”¨åˆ¶é™ã«ã‹ã‹ã‚‹ã€‚ã“ã®çµ„ã¿åˆã‚ã›ã¯ã‚ªã‚¹ã‚¹ãƒ¡ã—ãªã„ 2016 7/01 æœ¬è¨˜äº‹ã¯ã€ãƒ ãƒ¼ãƒ ãƒ¼ãƒ‰ãƒ¡ã‚¤ãƒ³ + XYZ ã§ã€åˆ©ç”¨åˆ¶é™ãŒã‹ã‹ã‚Šã€ã¾ãŸãã‚ŒãŒè§£é™¤ã•ã‚Œã‚‹ã¾ã§ã®ã“ã¨ã‚’ç¶´ã£ãŸè¨˜äº‹ã§ã™ã€‚ã¾ãä¸€äººã®çµŒé¨“è«‡ã§ã™ã‹ã‚‰ã€ãã†ã„ã†ã‚‚ã®ã¨ã—ã¦å‚è€ƒã«ã—ã¦ã‚‚ã‚‰ãˆã‚Œã°ã¨æ€ã„ã¾ã™ãŒã€å°‘ãªãã¨ã‚‚ç§ã¯ã‚ªã‚¹ã‚¹ãƒ¡ã—ãªã„ã§ã™ã‚ˆã€ã“ã®çµ„ã¿åˆã‚ã›ã€‚ ï¼ˆ2016/08/07è¿½è¨˜ï¼šä¹…ã€…ã«è¦‹ã‚‹ã¨ã€ã¾ãŸserverHoldã«ã‹ã‹ã£ã¦ã„ã¾ã—ãŸã€‚ã—ã‹ã—ã€ä»Šå›žã®ã“ã¨ã§å«Œæ°—ãŒã•ã—ã¦ã„ãŸç§ã¯ã€æ—¢ã«å½“è©²ãƒ‰ãƒ¡ã‚¤ãƒ³ã‚’ä½¿ã£ã¦ã„ã¾ã›ã‚“ã€‚ã—ãŸãŒã£ã¦ã€å•é¡Œã®èµ·ãã‚ˆã†ãŒã‚ã‚Šã¾ã›ã‚“ã€‚ãƒ ãƒ¼ãƒ ãƒ¼ãƒ‰ãƒ¡ã‚¤ãƒ³+XYZã«å•é¡ŒãŒã‚ã‚‹ã®ã ã¨ç§ã¯åˆ¤æ–ã—ã¾ã™ï¼‰ ã“ã‚Œã¾ã§ã®è¨˜äº‹ã€‚ ã€ŒDNSã‚¢ãƒ‰ãƒ¬ã‚¹ãŒè¦‹ã¤ã‹ã‚Šã¾ã›ã‚“ã§ã—ãŸã€ç‹¬è‡ªãƒ‰ãƒ¡ã‚¤ãƒ³ã®ã‚µã‚¤ãƒˆãŒserverHoldâ€¦.xyzã®ã›ã„ãªã‚“ã ã‚ã†ã‹ : æˆ–ã‚‹é˜¿å‘†ã®è¨˜ serverHoldã¯çã—ã„ã®ã‹ã€‚ä¸
$halfrack$
halfrack 2020/09/04
ãƒ ãƒ¼ãƒ ãƒ¼ã£ã¦ã‹ xyz TLD ãŒãƒ€ãƒ¡ãã†

dns

internet
ãƒªãƒ³ã‚¯
Welcome to DNS - Welcome_to_DNS-final.pdf
$halfrack$
halfrack 2020/05/01
https://github.com/ahupowerdns/hello-dns ã®ç´¹ä»‹ "Provide accessible entrypoint into DNS"

dns
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Amazon Route 53 ã«ç™»éŒ²ã—ãŸãƒ‰ãƒ¡ã‚¤ãƒ³ã®åå‰è§£æ±ºãŒå‡ºæ¥ãŸã‚Šå‡ºæ¥ãªã‹ã£ãŸã‚Šã—ã¾ã™ã€‚ç«¯æœ«ã«ã‚ˆã£ã¦ã¯ dig ã‚³ãƒžãƒ³ãƒ‰ã®çµæžœã« IP ã‚¢ãƒ‰ãƒ¬ã‚¹ãŒè¿”ã£ã¦ãã¾ã›ã‚“ã€‚ | DevelopersIO
å›°ã£ã¦ã„ãŸå†…å®¹ ã‚µã‚¤ãƒˆè¡¨ç¤ºãŒå‡ºæ¥ãŸã‚Šå‡ºæ¥ãªã‹ã£ãŸã‚Šã—ã¾ã™ã€‚ã‚µãƒ¼ãƒã®ãƒªã‚½ãƒ¼ã‚¹ã‚„ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã«ã¯å•é¡ŒãŒãªã„ã‚ˆã†ã«è¦‹å—ã‘ã‚‰ã‚Œã¾ã™ã€‚ã¾ãŸã€èª¿æŸ»ã‚’é€²ã‚ã¦ã„ãã¨ã‚µã‚¤ãƒˆè¡¨ç¤ºãŒè¡Œãªãˆãªã„ç«¯æœ«ã‹ã‚‰ dig ã‚³ãƒžãƒ³ãƒ‰ã‚’ä½¿ã£ã¦ Amazon Route 53 ã«ç™»éŒ²ã—ãŸãƒ‰ãƒ¡ã‚¤ãƒ³ã®åå‰è§£æ±ºã‚’è¡Œã£ã¦ã‚‚ã€ä¸‹è¨˜ã®é€šã‚Š IP ã‚¢ãƒ‰ãƒ¬ã‚¹ãŒè¿”ã£ã¦ãã¾ã›ã‚“ã€‚ $ dig dev.invalid ; <<>> DiG 9.10.6 <<>> dev.invalid ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 46694 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTI
$halfrack$
halfrack 2020/04/12
"AUTHORITY SECTION" ã«ã‚‚æ³¨ç›®ã™ã‚‹ã¨ã‚ˆã‚Šè‰¯ã•ãã†ã€‚ Route53 ã§ã¯ãªã a root ã‹ã‚‰å¦å®šå¿œç”ãŒè¿”ã£ã¦ã„ã‚‹ã€‚ / ãƒ†ã‚¯ãƒ‹ã‚«ãƒ«ã‚µãƒãƒ¼ãƒˆãƒŽãƒ¼ãƒˆã®æ€æƒ³ã‚€ã£ã¡ã‚ƒãˆãˆãªã€‚

dns
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ACME v1/v2: Validating challenges from multiple network vantage points - API Announcements - Let's Encrypt Community Support
On Wednesday February 19th, 2020 weâ€™ll turn on stricter validation requirements in production. Weâ€™ll make multiple validation requests from different network perspectives. Most issuance should continue as normal; we believe that a small number of domain names may need fixing. The most common issue will be hosts that use extremely strict firewall rules to allow validation from only specified IP add
$halfrack$
halfrack 2020/02/27
security

dns

tls
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