MulticastãŒå‡ºæ¥ãªã„ãªã‚‰Unicastã™ã‚Œã°ã„ã„ã˜ã‚ƒãªã„
EC2ã§ã¯ãƒžãƒ«ãƒã‚ャストãŒä½¿ãˆãªã„ã‹ã‚‰â—‹â—‹ãŒå‹•ã‹ãªã„ã£ã¦ã‚ˆãèžãã¾ã™ã€‚確ã‹ã«VPCã§ã‚ã£ã¦ã‚‚EC2ã§ã¯L2ブãƒãƒ¼ãƒ‰ã‚ャストã¯ã‚µãƒãƒ¼ãƒˆã•ã‚Œã¦ã„ãªã„ã®ã§ã€ENIã«ãƒ–ãƒãƒ¼ãƒ‰ã‚ャスト/マルãƒã‚ャストパケットを投ã’ã¦ã‚‚誰ã«ã‚‚届ãã¾ã›ã‚“。ã§ã‚‚当ãŸã‚Šå‰ã§ã™ãŒã€ãƒ¦ãƒ‹ã‚ャストã¯ã§ãã¾ã™ã‚ˆã？ã§ã‚ã‚Œã°ã‚¢ãƒ—リケーションãŒãƒžãƒ«ãƒã‚ャストã®ã¤ã‚‚ã‚Šã§æŠ•ã’ãŸãƒ‘ケットをæ•ã¾ãˆã¦ã€L3アドレスã¯ãã®ã¾ã¾ã«L2ã§è¤‡æ•°ã®ãƒ¦ãƒ‹ã‚ャストフレームã¨ã—ã¦é€ã£ã¦ã—ã¾ãˆã°ã„ã„ã®ã§ã¯ï¼Ÿãã‚“ãªäº‹ã‚’試ã—ã¦å®Ÿéš›å‹•ã事を確èªã—ãŸã¨ã“ã‚をデモをå«ã‚ã¦ãŠå±Šã‘ã—ã¾ã™ã€‚Read less
AWS VPN (1) between VPC VPN G/W and Debian Linux (racoon, setkey, quagga) with NAT | 外é“父ã®åŒ
AWS VPN (1) between VPC VPN G/W and Debian Linux (racoon, setkey, quagga) with NAT AWSã®VPCã«ã¯VPN機能ãŒã¤ã„ã¦ã„ã‚‹ã®ã§ã€åˆ©ç”¨ã™ã‚‹ã¨ç¤¾å†…ãªã©ä»»æ„ã®ã‚µãƒ–ãƒãƒƒãƒˆã¨VPCã®é–“ã‚’ã€Privateアドレスã§æš—å·åŒ–通信ã§ãるよã†ã«ãªã‚Šã¾ã™ã€‚ 通常ã“ã®VPC VPNã¯ã€ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ãƒ«ãƒ¼ã‚¿ãƒ¼ã‚’用ã„ã¦æŽ¥ç¶šã™ã‚‹ã¹ãã€ä¸€èˆ¬çš„ãªãƒ«ãƒ¼ã‚¿ã®è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã‚’é…布ã—ã¦ãれる至れり尽ãã›ã‚Šãªç’°å¢ƒãªã®ã§ã™ãŒã€ã‚¦ãƒã¯è²§ä¹ã§LinuxãŒå¤§å¥½ããªã®ã§ã€ Debian Wheezyã§æŽ¥ç¶šã‚’試ã¿ã‚‹ã®ã§ã—ãŸã€‚ ï¼’ã¤ã®æ–¹æ³• Linuxã§ã¯ç§ãŒæœ€åˆã«æ§‹æƒ³ã—ãŸã€ç¶ºéº—ã§å®Œå…¨ãªå†—長化構æˆã¯ã§ããªã„ã“ã¨ãŒã‚ã‹ã‚Šã€å¦¥å”案ã¨ã—ã¦ï¼’ã¤ã®æ§‹æˆæ¡ˆãŒã§ããŸãŸã‚ã€ï¼’ã¤ã®ã‚¨ãƒ³ãƒˆãƒªã«åˆ†ã‘ã¦æ›¸ãã“ã¨ã«ã—ã¾ã™ã€‚ãã®ï¼’ã¤ã®æ¡ˆã¨ã¯ã€ 綺麗ãªå†—長化＋NAT æ³¥è‡ã„冗長化＋éžNAT ã§ã€ã¾ãš
[Amazon VPC]ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢VPN接続ã®MTUã¨TCP MSSã®æœ€é©å€¤ã‚’探㙠| DevelopersIO
ã•ã¦ã€Management Consoleã®[VPN Connections]ç”»é¢ã‹ã‚‰ã€å„機器ã«åˆã‚ã›ãŸè¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã‚’ダウンãƒãƒ¼ãƒ‰å‡ºæ¥ã‚‹ã“ã¨ã¯ä¸Šè¨˜ã®è¨˜äº‹ã§ã”説明ã—ã¾ã—ãŸã€‚ ã“ã®è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã®å†…容を見ã¦ã¿ã‚‹ã¨ã€ã¡ã‚‡ã£ã¨æ°—ã«ãªã‚‹éƒ¨åˆ†ãŒã‚ã‚Šã¾ã™ã€‚例ãˆã°Generic Vendorã ã¨... IPSec ESP (Encapsulating Security Payload) inserts additional headers to transmit packets. These headers require additional space, which reduces the amount of space available to transmit application data. To limit the impact of this behavior, we recommend t
![[Amazon VPC]ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢VPN接続ã®MTUã¨TCP MSSã®æœ€é©å€¤ã‚’探㙠| DevelopersIO](https://cdn-ak-scissors.b.st-hatena.com/image/square/495673edbefe7b7bc5e6e9e54b2565989b893342/height=288;version=1;width=512/https%3A%2F%2Fdevio2023-media.developers.io%2Fwp-content%2Fuploads%2F2013%2F09%2Faws1.png)
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AWSã®è§£é™¤ã§ãる制é™ã¨ ãã®ãƒ•ã‚©ãƒ¼ãƒ 一覧 - ã‹ã‚Œ4
æ›´æ–°å±¥æ´ 2013.8.19 SWFã®Domains, Total types per domain. Workflow executions per domain,Desired throttle settings for account ã®ä¸Šé™ç·©å’Œ 2012.9.25 ConnsolidatedBillingã®ã‚¢ã‚«ã‚¦ãƒ³ãƒˆä¸Šé™ã«ã¤ã„ã¦è¿½åŠ (櫻井ã•ã‚“ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã™ã€‚) DynamoDB,ElastiCache,CloudSearchã®åˆ¶é™è§£é™¤ã‚‚è¿½åŠ ã—ã¾ã—ãŸã€‚ AWSã«ã¯é–“é•ãˆã¦ä½¿ã„ã™ãŽã‚ƒã‚内容ã«è‰²ã€…上é™ã‚’è¨ã‘ã¦ãã‚Œã¦ã„ã¾ã™ã€‚ ãã‚Œã§ã¯æº€è¶³ã§ããªã„人ã®ãŸã‚ã«ã¯ä¸Šé™è§£é™¤ã®ç”³è«‹ãŒå‡ºæ¥ã‚‹ã‚‚ã®ã‚‚ã‚ã‚‹ã®ã§ãれを一覧ã«ã—ã¦ã¿ã¾ã—ãŸã€‚ 上é™è§£é™¤ã¨è¨€ã£ã¦ã‚‚ã©ã“ã¾ã§è§£é™¤ã§ãã‚‹ã‹ã¯ã‚ã‹ã‚Šã¾ã›ã‚“。 サービス åˆ¶é™ è‹±èªžç‰ˆãƒ•ã‚©ãƒ¼ãƒ æ—¥æœ¬èªžç‰ˆãƒ•ã‚©ãƒ¼ãƒ CloudFormation 最高20ã¾ã§ã® AWS Cl
クックパッドã§ã®VPC移行ã«ã¤ã„ã¦
2. 自己紹介 è…原元気 (@sgwr_dts) ž  クックパッド(æ ª) / インフラエンジニア —  データセンターã‹ã‚‰AWSã¸ã®ç§»è¡Œã‚’担当㗠ã¾ã—㟠ž  OSS公開ã—ã¦ã¾ã™ —  AWSツール elasticfox-ec2tag（VPC対応済ã¿ï¼ï¼‰ã€IAM Fox〠R53 Fox —  Rubyライブラリå„種 http://rubygems.org/profiles/winebarrel
NATインスタンスを冗長構æˆã«ã—ã¦ã¿ãŸ - log4moto
Wizardã«ã‚ˆã‚‹æ¨™æº–構æˆã®VPCã«ãŠã„ã¦NATインスタンスã¯SPOFã§ã‚ã‚Šã€ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹éšœå®³ã‚„ã€å˜ä¸€AZã®éšœå®³ã€AZ間接続障害ã«ã‚ˆã£ã¦ã‚‚両AZã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆæŽ¥ç¶šæ€§ãŒæãªã‚れるå¯èƒ½æ€§ãŒã‚る。ãã“ã§ã€NATインスタンスをAZ毎ã«ç”¨æ„ã—ã€éšœå®³ç™ºç”Ÿæ™‚ã«failoverã™ã‚‹ä»•çµ„ã¿ã‚’考ãˆã¦ã¿ãŸã€‚ æ–¹é‡ ãªã‚‹ã¹ãAWSã®ï¼‘リージョン内ã§å®Œçµã—ã€åˆ¥ãƒªãƒ¼ã‚¸ãƒ§ãƒ³ã‚„外部ã«ç›£è¦–用ホストãªã©ã‚’ãŠã‹ãªã„ 瞬間的ã«ãƒ•ã‚§ã‚¤ãƒ«ã‚ªãƒ¼ãƒãƒ¼ã¯ãŠã“ãªã‚ãšã€æ¯Žåˆ†ã”ã¨ã«ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆä¸Šã®ã‚¿ãƒ¼ã‚²ãƒƒãƒˆIPã¸ã®ç–Žé€šã‚’確èªã—ã€éšœå®³ã¨æ€ã‚れる状態ã«ãªã£ãŸã‚‰ãƒ•ã‚§ã‚¤ãƒ«ã‚ªãƒ¼ãƒãƒ¼ã‚’行ㆠ疎通ãŒå›žå¾©ã—ãŸã¨æ€ã‚ã‚ŒãŸå ´åˆã«ã¯ã€å…ƒã®çŠ¶æ…‹ã«æˆ»ã™ æ§‹æˆ éžå¸¸ã«ã‚ã‹ã‚Šã¥ã‚‰ã„図ã«ãªã£ã¦ã„ã¾ã™ãŒã€æ§‹æˆè¦ç´ ã¨ã—ã¦ã¯ Subnet x 4 (Public, Private ã‚’ AZ毎ã«ï¼‘ã¤ãšã¤) NATインスタンス x 2 (AZ毎ã«ï¼‘ã¤ãšã¤ã€å½“然ElasticIPã‚‚1
Amazon VPCã§æµ®å‹•IPアドレス的ãªã“ã¨ãŒã§ããªã„ã‹ã®ãƒ¡ãƒ¢ - （ã²ï¼‰ãƒ¡ãƒ¢
フェイルオーãƒãƒ¼ã‚’実ç¾ã™ã‚‹æ‰‹æ³•ã®ã²ã¨ã¤ã«VIP(Virtual IPã€æµ®å‹•IPアドレス)ã¨ã„ã†ã‚‚ã®ãŒã‚ã‚Šã¾ã™ã€‚ Amazon VPCã«ã¦VIPãŒã§ããªã„ã‹ã€ã¡ã‚‡ã£ã¨è€ƒãˆã¦ã¿ãŸã®ã§ãã®ãƒ¡ãƒ¢ã§ã™ã€‚ 環境ã¨ã—ã¦ã¯ã€10.0.0.0/16ã®VPCã®ä¸ã«ã€ 10.0.0.0/17ã®public subnet (AZã¯a) 10.0.128.0/17ã®public subnet (AZã¯b) ã¨ã„ã†ãã‚Œãžã‚Œåˆ¥ã®Availability Zoneã«å±žã™ã‚‹2ã¤ã®subnetを作りã€ã“れらsubnetã‚’ã¾ãŸã„ã§VIPçš„ãªã“ã¨ãŒã§ããªã„ã‹ã€ã¨ã„ã†è€ƒå¯Ÿã§ã™ã€‚ æ€ã„ã¤ã„ãŸæ–¹æ³•ã¨ã—ã¦ã¯ä»¥ä¸‹ã®3ã¤ã§ã™ã€‚ ENIを移動ã™ã‚‹ - NICを移動ã™ã‚‹ secondary private addressを移動ã™ã‚‹ - IP Aliasã™ã‚‹ Routerã®åŠ›ã‚’借りる ã»ã‹ã«ã‚‚ã„ã„方法ãŒã‚ã£ãŸã‚‰æ•™ãˆã¦ãã ã•ã„＞＜ ENIを移動ã™ã‚‹
VPCã§ã‚¢ãƒ™ã‚¤ãƒ©ãƒ“リティゾーン越ã—ã«ãƒ—ライベートIPを共有ã™ã‚‹ï¼ˆSource/Descãƒã‚§ãƒƒã‚¯å¤–ã—） - カタヤマンãŒãƒ—ãƒã‚°ãƒ©ãƒžãƒãƒƒã‚¯ã«ä»Šæ—¥ã‚‚コードアシスト
久々ã®blogã§ã™ã€‚片山ã§ã™ã€‚ 先日@suz_labã•ã‚“ã¨ã€ENI出ãŸã‘ã©AZã¯è¶Šã›ã¾ã›ã‚“ãーã€ã¨ã„ã†è©±ã‚’ã—ã¦ã„ãŸã¨ãã«æ€ã„ã¤ã„ãŸã‚¢ã‚¤ãƒ‡ã‚¢ã‚’試ã—ã¦ã¿ã¾ã—ãŸã€‚ ENIã«ã¤ã„㦠先日発表ã•ã‚ŒãŸAWSã®ä»®æƒ³ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚«ãƒ¼ãƒ‰æ©Ÿèƒ½ã€Elastic Network Intarface(通称ENI)ã§ã™ãŒã€ãƒ—ライベートIPã¯ã‚‚ã¡ã‚ã‚“ã®ã“ã¨ã€ã‚»ã‚ュリティグループやグãƒãƒ¼ãƒãƒ«IPã€ã•ã‚‰ã«MACアドレスã¾ã§åˆ¥ã®ã‚µãƒ¼ãƒã«ã¤ã‘ãŸã‚Šå¤–ã—ãŸã‚Šã§ãã‚‹ã€ã‹ãªã‚Šã‚¤ã‚±ã¦ã‚‹æ©Ÿèƒ½ã§ã™ã€‚ EC2インスタンスã«ENIã‚’ã²ã£ã¤ã‘ã‚‹ã“ã¨ã§ã€å…ƒã€…æŒã£ã¦ã„ã‚‹eth0ã¨åˆã‚ã›ã¦è¤‡æ•°ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚«ãƒ¼ãƒ‰ã‚’æŒã¤ã“ã¨ãŒå‡ºæ¥ã‚‹ã‚ˆã†ã«ãªã‚‹ã®ã§ã€ãƒžãƒ«ãƒãƒ›ãƒ¼ãƒ を実ç¾ã§ãã¾ã™ã€‚ã¾ãŸã‚ã‚‹EC2インスタンスã‹ã‚‰åˆ¥ã®EC2インスタンスã¸ä»˜ã‘替ãˆã§ãã‚‹ã®ã§ã€ãŸã¨ãˆã°DBサーãƒã«ã²ã£ã¤ã‘ãŸENIã«å¯¾ã—ã¦Webサーãƒã‹ã‚‰ã‚¢ã‚¯ã‚»ã‚¹ã•ã›ã¦ãŠã‘ã°ã€DBãŒæ»ã‚“ã ã¨ãã«ã‚‚別ã§ç«‹
Private Cloud - Amazon Virtual Private Cloud (VPC) - AWS
Amazon Virtual Private Cloud (Amazon VPC) gives you full control over your virtual networking environment, including resource placement, connectivity, and security. Get started by setting up your VPC in the AWS service console. Next, add resources to it such as Amazon Elastic Compute Cloud (EC2) and Amazon Relational Database Service (RDS) instances. Finally, define how your VPCs communicate with
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https://media.amazonwebservices.com/AWS_Amazon_VPC_Connectivity_Options.pdf
http://debiancdn.wordpress.com/2012/07/18/%25E3%2581%25AA%25E3%2581%259Cvpc%25E3%2581%25AA%25E3%2581%25AE%25E3%2581%258B-%25E3%2581%259D%25E3%2582%258C%25E3%2581%25AF%25E8%25AA%25AC%25E6%2598%258E%25E3%2581%258C%25E6%25A5%25BD%25E3%2581%25A0%25E3%2581%258
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