[B! network] mi_kattunã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

mi_kattun id:mi_kattun

networkã«é–¢ã™ã‚‹mi_kattunã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (54)

${{author_name}}$

{{{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}}

Dockerã§ãƒžã‚¹ãƒˆãƒ‰ãƒ³ã‚„ã£ã¦ãŸã‚‰ã€é®æ–ã—ãŸã¯ãšã®ãƒãƒ¼ãƒˆãŒä¸¸è¦‹ãˆã ã£ãŸä»¶ | Divide et impera
ã¿ã‚“ãªãƒžã‚¹ãƒˆãƒ‰ãƒ³ã‚’ã‚„ã£ã¦ã„ã‚‹ã ã‚ã†ã‹ï¼Ÿ åƒ•ã¯ã‚„ã£ã¦ã„ã‚‹ã€‚ ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ç®¡ç†ã‚’ã‚„ã£ã¦ã„ã‚‹ã€‚ ã“ã‚“ãªãµã†ã«é‹ç”¨ã—ã¦ã„ãŸ conoHaã®VPS CentOS7.3 Dockerã§é‹ç”¨ã—ã¦ã„ã‚‹ ã¡ãªã¿ã«Dockerã¯ä»Šå›žãŒåˆã‚ã¦æœ¬æ ¼çš„ã«è§¦ã£ãŸã€‚ ãƒžã‚¹ãƒˆãƒ‰ãƒ³ã¯è£å´ã§ã¯3000ãƒãƒ¼ãƒˆã¨4000ãƒãƒ¼ãƒˆã§å¾…ã¡å—ã‘ã¦ã„ã‚‹ã€‚ 3000ã®æ–¹ã¯æ™®é€šã®WEB 4000ã®æ–¹ã¯APIã‚’æ‹…å½“ã—ã¦ã„ã‚‹ã€‚ HTTPã‚µãƒ¼ãƒãƒ¼ã§ã‚ã‚‹nginxãŒã€httpã®80ã¨httpsã®443ã§å—ã‘å–ã£ãŸã‚‰ã€ ãã‚Œãžã‚Œ3000ã¨4000ã«é€ã‚Šã¤ã‘ã¦ã„ã‚‹ ãƒªãƒãƒ¼ã‚¹ãƒ—ãƒã‚ã‚·ã¨ã„ã†æŠ€ã ã€‚ é€šå¸¸ã€å…¬é–‹ç”¨ã®httpã¨httpsã®ãƒãƒ¼ãƒˆã ã‘é–‹ã‘ã¦ãŠãã€‚ ã‚‚ã¡ã‚ã‚“åƒ•ã‚‚ãã®ã‚ˆã†ã«ã—ã¦ã„ãŸã€‚ CentOS7ä»¥é™ã¯iptablesã§ã¯ãªãfirewalldã¨ã„ã†ãƒ•ã‚¡ã‚¤ã‚¢ã‚¦ã‚©ãƒ¼ãƒ«ã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã§ãƒãƒ¼ãƒˆã®é–‹ã‘é–‰ã‚ã‚’ç®¡ç†ã—ã¦ã„ã‚‹ã€‚ firewalldã§ã€è¨±å¯ã™ã‚‹ãƒãƒ¼ãƒˆ
mi_kattun 2018/04/13
docker

iptables

network

security
ãƒªãƒ³ã‚¯
Docker ã® iptables è¨å®š
Docker ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã¾ã‚ã‚Šã®ç†è§£ã‚’æ·±ã‚ã‚‹ä¸€ç’°ã¨ã—ã¦ iptables ã«ã¤ã„ã¦æ•´ç†ã—ã¾ã™ã€‚ å…¨ä½“ã¨ã—ã¦ Iptables Tutorial ãŒã¨ã¦ã‚‚å‚è€ƒã«ãªã‚Šã¾ã—ãŸã€‚ iptables ã¨ã¯ iptables ã®æ§‹æˆè¦ç´ Docker ãƒ‡ãƒ¼ãƒ¢ãƒ³èµ·å‹•æ™‚ã® iptables Docker ã‚³ãƒ³ãƒ†ãƒŠèµ·å‹•æ™‚ã® iptables ç’°å¢ƒ: # OS $ cat /proc/version Linux version 4.14.13-1-ARCH (builduser@heftig-32336) (gcc version 7.2.1 20171224 (GCC)) #1 SMP PREEMPT Wed Jan 10 11:14:50 UTC 2018 # iptables $ iptables --version iptables v1.6.1 # Docker $ docker version
mi_kattun 2018/04/13
docker

network

iptables
ãƒªãƒ³ã‚¯
Docker 1.12 swarm mode - round robin inside and out
Swarm mode built in with Docker 1.12 My excellent colleague Dave Wybourn recently blogged about Docker Swarm in this post. Since then, Docker 1.12 has been released and swarm functionality has been integrated into the main Docker engine. Release 1.12 of the Docker engine has a lot of compelling new features. You can read about them in the official release notes on GitHub. On my current project, we
mi_kattun 2017/07/07
docker

network
ãƒªãƒ³ã‚¯
CDNã¨ã®ä»˜ãåˆã„æ–¹ â€“ cat /dev/random > /dev/null &
æœ€è¿‘ä½•ã‹ã¨è©±é¡ŒãªCDNã§ã™ãŒã€ãã‚‚ãã‚‚CDNã£ã¦ãªã‚“ã ã‚ã†ãƒ»ãƒ»ãƒ»ã©ã‚“ãªã“ã¨ã«ä½¿ãˆã‚‹ã‚“ã ã‚ã†ï¼Ÿçš„ãªã“ã¨ã‚’æ›¸ã„ã¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚ ä¸€å¿œå…ˆã«è¨€ã£ã¦ãŠãã¨ã€ç§ã¯CDNæ¥è€…ã«æ‰€å±žã—ãŸã“ã¨ãªã„ã®ã§ã‚ãã¾ã§ã‚‚åˆ©ç”¨è€…ã¨ã—ã¦è¦‹ãŸæ™‚ã®è©±ã‚’æ›¸ãã¾ã™ã€‚ ã¾ãŸã€ç§ã®è€ƒãˆã§ã‚ã‚Šã€æ§˜ã€…ãªãƒ¯ãƒ¼ã‚¯ãƒãƒ¼ãƒ‰ãŒã‚ã‚‹ãªã‹ã§ã“ã‚ŒãŒã™ã¹ã¦ã§ã¯ã‚ã‚Šã¾ã›ã‚“ã®ã§ã€ã“ã‚“ãªè€ƒãˆã‚‚ã‚ã‚‹ã‚“ã ãªããã‚‰ã„ã«æ€ã£ã¦ã‚‚ã‚‰ãˆã‚‹ã¨åŠ©ã‹ã‚Šã¾ã™ã€‚ ãã‚‚ãã‚‚CDNã£ã¦ãªã‚“ã ã‚ã†ã‹ ãã‚‚ãã‚‚CDNã¯Content Delivery Networkã®ç•¥ã§ã‚ã£ã¦Cache Delivery Networkã®ç•¥ã§ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ è¦ã¯ã‚³ãƒ³ãƒ†ãƒ³ãƒ„ã‚’ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã«å¯¾ã—ã¦é«˜é€Ÿãƒ»åŠ¹çŽ‡çš„ã«é…ä¿¡ã™ã‚‹ãŸã‚ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã§ã™ã€‚ è‰¯ãCDNã¨ã„ãˆã°ãã®æˆã‚Šç«‹ã¡ã‹ã‚‰ã‚ãƒ£ãƒƒã‚·ãƒ¥ã¨ã„ã†ã‚¤ãƒ¡ãƒ¼ã‚¸ã¯ã‚ã‚Šã¾ã™ãŒã€é‡è¦ãªè¦ç´ ã®ä¸€ã¤ã§ã¯ã‚ã‚‹ã‚‚ã®ã®CDNã®å…¨ã¦ã§ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ ã•ã‚‰ã«è¨€ãˆã°Akamaiã®Int
mi_kattun 2017/07/03
network
ãƒªãƒ³ã‚¯
CDNã«å‹•çš„ã‚³ãƒ³ãƒ†ãƒ³ãƒ„ã‚’å®‰å…¨ã«é€šã™ã«ã¯ã©ã†ã™ã‚‹ã¹ãã‹ - æ–¹å‘
ãƒ¡ãƒ«ã‚«ãƒªã§CDNã«ã‚ãƒ£ãƒƒã‚·ãƒ¥ã•ã‚Œã‚‹ã¹ãã§ãªã„ãƒšãƒ¼ã‚¸ãŒã‚ãƒ£ãƒƒã‚·ãƒ¥ã•ã‚Œã‚‹ã“ã¨ã«ã‚ˆã‚Šå€‹äººæƒ…å ±ã®æµå‡ºãŒç™ºç”Ÿã—ã¦ã—ã¾ã†ã‚¤ãƒ³ã‚·ãƒ‡ãƒ³ãƒˆãŒã‚ã‚Šã¾ã—ãŸ è‡ªåˆ†ã¯å‹•çš„ã‚³ãƒ³ãƒ†ãƒ³ãƒ„ã‚’CDNã§é…ä¿¡ã™ã‚‹ã“ã¨ã«ã‚ã¾ã‚Šç©æ¥µçš„ã§ã¯ãªã„ç«‹å ´ã ã£ãŸã®ã§ã™ãŒæµå‡ºã¸ã®åå¿œã‚’è¦‹ã‚‹ã¨CDNã‚’åˆ©ç”¨ã—ã¦ã„ã‚‹ã‚µãƒ¼ãƒ“ã‚¹ã¯ã‹ãªã‚Šå¢—ãˆã¦ãã¦ã„ã‚‹ã‚ˆã†ã§ã™ å€‹äººæƒ…å ±ã‚„ãƒ¦ãƒ¼ã‚¶ãƒ¼ã®ãƒ—ãƒ©ã‚¤ãƒ™ãƒ¼ãƒˆãƒ‡ãƒ¼ã‚¿ã‚’æ±ºã—ã¦æµå‡ºã—ãªã„ã‚ˆã†ã«ã—ã¤ã¤CDNã‚’åˆ©ç”¨ã™ã‚‹æ–¹æ³•ã‚’è€ƒãˆã¦ã¿ã¾ã—ãŸ CDNåˆ©ç”¨ã®ãƒ¡ãƒªãƒƒãƒˆ ã“ã®ãµãŸã¤ çµŒè·¯ãŒæœ€é©åŒ–ã•ã‚Œãƒ¬ã‚¤ãƒ†ãƒ³ã‚·ãŒå°ã•ããªã‚‹ DDoSå¯¾ç–ã¨ãªã‚‹ ã‚ãƒ£ãƒƒã‚·ãƒ¥ã•ã‚Œãªã„ã‚ˆã†ã«ã™ã‚‹æ–¹æ³• Twitterã§å‹•çš„ã‚³ãƒ³ãƒ†ãƒ³ãƒ„ã‚‚CDNé€šã™ã®å½“ãŸã‚Šå‰ã§ã—ã‚‡ãƒ¼ã¨è¨€ã£ã¦ã‚‹äººã«ãƒªãƒ—ã—ã¦ãã„ã¦ã¿ã¾ã—ãŸ CDNã¨ãƒ¬ã‚¹ãƒãƒ³ã‚¹ãƒ˜ãƒƒãƒ€ã§äºŒé‡ã«ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’ç„¡åŠ¹åŒ–ã™ã‚‹ ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’ç´°ã‹ãã‚³ãƒ³ãƒˆãƒãƒ¼ãƒ«CDNã‚’ä½¿ã† ãƒ›ãƒ¯ã‚¤ãƒˆãƒªã‚¹ãƒˆæ–¹å¼ã§ç‰¹å®šã®ãƒ‘ã‚¹ã®ã¿ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚’è¨±å¯ ãƒã‚°ã‚¤ãƒ³ã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚’
mi_kattun 2017/06/24
network
ãƒªãƒ³ã‚¯
DMM inside
ãƒ¬ãƒ“ãƒ¥ãƒ¼è‡ªå‹•æ‰¿èªåŒ–ã¨ç²¾åº¦100%ã‚’ç›®æŒ‡ã—ã¦ã€‚ã„ã¡æ—©ãç”ŸæˆAIã®å°Žå…¥ã«è¸ã¿å‡ºã—ãŸã€Œãƒ¦ãƒ¼ã‚¶ãƒ¼ãƒ¬ãƒ“ãƒ¥ãƒ¼åŸºç›¤ã€ã®å–ã‚Šçµ„ã¿
mi_kattun 2017/02/21
network
ãƒªãƒ³ã‚¯
Deconstructing the Great Firewall of China | ThousandEyes
mi_kattun 2016/12/26
network

*troubleshoot
ãƒªãƒ³ã‚¯
ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã®ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã„ã‚ã„ã‚ - yunazuno.log
å°‘ã—å‰ã«ï¼ŒFacebookã®ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µãŒè©±é¡Œã«ãªã£ã¦ã„ãŸï¼Ž blog.stanaka.org ã“ã®ã‚¨ãƒ³ãƒˆãƒªã‚’èªã‚“ã§ï¼Œå„ç¨®Webã‚µãƒ¼ãƒ“ã‚¹äº‹æ¥è€…ãŒã©ã†ã„ã£ãŸãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚¹ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã‚’æŽ¡ç”¨ã—ã¦ã„ã‚‹ã®ã‹æ°—ã«ãªã£ãŸã®ã§èª¿ã¹ã¦ã¿ãŸï¼Ž ã–ã£ãã‚Šæ¤œç´¢ã—ãŸé™ã‚Šã ã¨ï¼ŒMicrosoft, CloudFlareã®äº‹ä¾‹ãŒè¦‹ã¤ã‹ã£ãŸã®ã§ï¼ŒFacebookã®ä¾‹ã‚‚ä½µã›ã¦ã¾ã¨ã‚ã¦ã¿ãŸï¼Ž ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£éƒ¨åˆ†ã«æ³¨ç›®ã—ã¦ã¾ã¨ã‚ãŸã®ã§ï¼Œãƒžãƒã‚¸ãƒ¡ãƒ³ãƒˆæ–¹æ³•ã‚„å®Ÿè£…æ–¹æ³•ï¼Œãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚¹ä»¥å¤–ã®æ©Ÿèƒ½ã‚„æœ€é©åŒ–æ‰‹æ³•ã¨ã„ã£ãŸéƒ¨åˆ†ã®è©³ç´°ã«ã¯è§¦ã‚Œãªã„ã“ã¨ã«ã™ã‚‹ï¼Ž äº‹ä¾‹1: Microsoft Azure 'Ananta' Microsoftã®Azureã§æŽ¡ç”¨ã•ã‚Œã¦ã„ã‚‹(ã„ãŸï¼Ÿ)ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã®ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã¯ï¼Œä¸‹è¨˜ã®è«–æ–‡ãŒè©³ã—ã„ï¼Ž Parveen Patel et al., Ananta: cloud scale load balancing
mi_kattun 2016/03/01
network
ãƒªãƒ³ã‚¯
æ ªå¼ä¼šç¤¾TAP
mi_kattun 2016/02/25
keepalived

linux

network
ãƒªãƒ³ã‚¯
Linux Virtual Serverã¨Keepalivedã§ä½œã‚‹å†—é•·åŒ–ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µ | OSDN Magazine
å¤šæ•°ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆãŒã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹ã‚ˆã†ãªè² è·ã®é«˜ã„ã‚µãƒ¼ãƒ“ã‚¹ã‚„åœæ¢ã•ã›ã‚‰ã‚Œãªã„ã‚µãƒ¼ãƒ“ã‚¹ã‚’é‹ç”¨ã™ã‚‹å ´åˆã€è¤‡æ•°ã®ã‚µãƒ¼ãƒãƒ¼ã‚’ä½¿ã£ã¦ã‚µãƒ¼ãƒ“ã‚¹ã®è² è·åˆ†æ•£ã‚„å†—é•·åŒ–ã‚’è¡Œã†ã®ãŒä¸€èˆ¬çš„ã ã€‚æœ¬è¨˜äº‹ã§ã¯ã€ã€ŒLinux Virtual Serverï¼ˆLVSï¼‰ã€ã‚’ä½¿ã£ã¦ã“ã®ã‚ˆã†ãªæ§‹æˆã‚’å®Ÿç¾ã™ã‚‹æ–¹æ³•ã«ã¤ã„ã¦ç´¹ä»‹ã™ã‚‹ã€‚ Linuxã‚µãƒ¼ãƒãƒ¼ã‚’ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã«ã™ã‚‹ã€ŒLinux Virtual Serverã€ï¼ˆLVSï¼‰ æœ€è¿‘ã§ã¯å¤šæ•°ã®CPUã‚³ã‚¢ã‚’æŒã¤ã‚µãƒ¼ãƒãƒ¼ãŒå®‰ä¾¡ã§åˆ©ç”¨ã§ãã‚‹ã‚ˆã†ã«ãªã‚Šã€ã‚µãƒ¼ãƒãƒ¼1å°ã®å‡¦ç†èƒ½åŠ›ã¯é£›èºçš„ã«å‘ä¸Šã—ã¦ã„ã‚‹ã€‚ã—ã‹ã—ã€ãƒªã‚¯ã‚¨ã‚¹ãƒˆã®å‡¦ç†ã«å¤šãã®ãƒªã‚½ãƒ¼ã‚¹ã‚’ä½¿ç”¨ã™ã‚‹ã‚ˆã†ãªã‚µãƒ¼ãƒ“ã‚¹ã‚„ã€çŸæ™‚é–“ã«å¤šæ•°ã®ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’å‡¦ç†ã™ã‚‹å¿…è¦ãŒã‚ã‚‹ã‚µãƒ¼ãƒ“ã‚¹ã§ã¯ã€1å°ã®ã‚µãƒ¼ãƒãƒ¼ã ã‘ã§ã¯å‡¦ç†èƒ½åŠ›ãŒä¸è¶³ã™ã‚‹å ´åˆãŒã‚ã‚‹ã€‚ã“ã®ã‚ˆã†ãªå ´åˆã€è¤‡æ•°å°ã®ã‚µãƒ¼ãƒãƒ¼ã§åŒã˜ã‚µãƒ¼ãƒ“ã‚¹ã‚’é‹ç”¨ã—ã€ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã‚’ä½¿ã£ã¦ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’æŒ¯ã‚Šåˆ†ã‘ã‚‹ã“ã¨ã§è² è·ã®åˆ†æ•£ã‚’å›³ã‚‹ã“
mi_kattun 2016/02/25
linux

network

keepalived
ãƒªãƒ³ã‚¯
Keepalived for Linux
mi_kattun 2016/02/25
keepalived

linux

network
ãƒªãƒ³ã‚¯
ã€ŒLinux Virtual Serverã€ã¨ã€ŒKeepalivedã€ã§ä½œã‚‹å†—é•·åŒ–ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µ | ã•ãã‚‰ã®ãƒŠãƒ¬ãƒƒã‚¸
å¤šæ•°ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆãŒã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹ã‚ˆã†ãªè² è·ã®é«˜ã„ã‚µãƒ¼ãƒ“ã‚¹ã‚„åœæ¢ã•ã›ã‚‰ã‚Œãªã„ã‚µãƒ¼ãƒ“ã‚¹ã‚’é‹ç”¨ã™ã‚‹å ´åˆã€è¤‡æ•°ã®ã‚µãƒ¼ãƒãƒ¼ã‚’ä½¿ã£ã¦ã‚µãƒ¼ãƒ“ã‚¹ã®è² è·åˆ†æ•£ã‚„å†—é•·åŒ–ã‚’è¡Œã†ã®ãŒä¸€èˆ¬çš„ã ã€‚æœ¬è¨˜äº‹ã§ã¯ã€ã€ŒLinux Virtual Serverï¼ˆLVSï¼‰ã€ã‚’ä½¿ã£ã¦ã“ã®ã‚ˆã†ãªæ§‹æˆã‚’å®Ÿç¾ã™ã‚‹æ–¹æ³•ã«ã¤ã„ã¦ç´¹ä»‹ã™ã‚‹ã€‚ Linuxã‚µãƒ¼ãƒãƒ¼ã‚’ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã«ã™ã‚‹ã€ŒLinux Virtual Serverã€ï¼ˆLVSï¼‰ æœ€è¿‘ã§ã¯å¤šæ•°ã®CPUã‚³ã‚¢ã‚’æŒã¤ã‚µãƒ¼ãƒãƒ¼ãŒå®‰ä¾¡ã§åˆ©ç”¨ã§ãã‚‹ã‚ˆã†ã«ãªã‚Šã€ã‚µãƒ¼ãƒãƒ¼1å°ã®å‡¦ç†èƒ½åŠ›ã¯é£›èºçš„ã«å‘ä¸Šã—ã¦ã„ã‚‹ã€‚ã—ã‹ã—ã€ãƒªã‚¯ã‚¨ã‚¹ãƒˆã®å‡¦ç†ã«å¤šãã®ãƒªã‚½ãƒ¼ã‚¹ã‚’ä½¿ç”¨ã™ã‚‹ã‚ˆã†ãªã‚µãƒ¼ãƒ“ã‚¹ã‚„ã€çŸæ™‚é–“ã«å¤šæ•°ã®ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’å‡¦ç†ã™ã‚‹å¿…è¦ãŒã‚ã‚‹ã‚µãƒ¼ãƒ“ã‚¹ã§ã¯ã€1å°ã®ã‚µãƒ¼ãƒãƒ¼ã ã‘ã§ã¯å‡¦ç†èƒ½åŠ›ãŒä¸è¶³ã™ã‚‹å ´åˆãŒã‚ã‚‹ã€‚ã“ã®ã‚ˆã†ãªå ´åˆã€è¤‡æ•°å°ã®ã‚µãƒ¼ãƒãƒ¼ã§åŒã˜ã‚µãƒ¼ãƒ“ã‚¹ã‚’é‹ç”¨ã—ã€ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã‚’ä½¿ã£ã¦ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’æŒ¯ã‚Šåˆ†ã‘ã‚‹ã“ã¨ã§è² è·ã®åˆ†æ•£ã‚’å›³ã‚‹ã“
mi_kattun 2016/02/25
network

linux

keepalived
ãƒªãƒ³ã‚¯
Linux Gratuitous ARPã®é€ä¿¡æ–¹æ³• - LINUX and More Tips etc,,,
ã€å›½å†…æ£è¦å“ã€‘SHURE ã‚«ãƒŠãƒ«åž‹ é«˜é®éŸ³æ€§ã‚¤ãƒ¤ãƒ›ãƒ³ SE215 Special Edition ãƒˆãƒ©ãƒ³ã‚¹ã‚¹ãƒ«ãƒ¼ã‚»ãƒ³ãƒˆãƒ–ãƒ«ãƒ¼ SE215SPE-A
mi_kattun 2016/02/25
linux

network
ãƒªãƒ³ã‚¯
ã€Œifconfig eth0:?ã€ã¯å¤ã„ï¼CentOS/RHELã§ã®IPã‚¨ã‚¤ãƒªã‚¢ã‚¹ã®è¨å®šæ–¹æ³• - tabimoba.net
CentOS6.4ãŠã‚ˆã³ RHEL(Red Hat Enterprise Linux)6.4ã§ã¯ã€ifconfig eth0:?ã‚³ãƒžãƒ³ãƒ‰ã®å®Ÿè¡Œã‚„ã€/etc/sysconfig/network-scriptsãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã«ifcfg-eth0:?ãƒ•ã‚¡ã‚¤ãƒ«ã‚’é…ç½®ã—ã¦IPã‚¨ã‚¤ãƒªã‚¢ã‚¹ã‚’è¨å®šã™ã‚‹ï¼ˆNIC1æžšã«å¯¾ã—ã¦è¤‡æ•°ã®IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’å‰²ã‚Šå½“ã¦ã‚‹ï¼‰ã“ã¨ã¯éžæŽ¨å¥¨ã¨ãªã‚Šã¾ã—ãŸã€‚ # man ifconfig NOTE This program is obsolete! For replacement check ip addr and ip link. For statistics use ip -s link. ã“ã‚Œã«ã‚ˆã‚Šã€network-scriptsãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªä»¥ä¸‹ã«ifcfg-eth0:?ã®ã‚ˆã†ãªã‚¨ã‚¤ãƒªã‚¢ã‚¹ã”ã¨ã®è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã‚’ç”¨æ„ã™ã‚‹æ–¹æ³•ã¯ä½¿ãˆãªããªã‚Šã¾ã—ãŸã€‚ï¼ˆRHEL6.4ã§ç¢ºèªã€CentOS6
mi_kattun 2016/02/25
network

linux
ãƒªãƒ³ã‚¯
DSASé–‹ç™ºè€…ã®éƒ¨å±‹:ã“ã‚“ãªã«ç°¡å˜ï¼ Linuxã§ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µ (1)
DSASã®ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã¯é«˜ä¾¡ãªã‚¢ãƒ—ãƒ©ã‚¤ã‚¢ãƒ³ã‚¹è£½å“ã§ã¯ãªãã€Linuxã®LVS (Linux Virtual Server)ã‚’åˆ©ç”¨ã—ã¦ã„ã¾ã™ã€‚ å®‰ä¾¡ã€ã¨ã„ã†ã‹ã€ãƒãƒ¼ãƒ‰ã‚¦ã‚¨ã‚¢ä»¥å¤–ã¯é‡‘éŠçš„ã‚³ã‚¹ãƒˆãŒã‚¼ãƒãªã®ã§ã€ä¸€èˆ¬ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‹ã‚‰ã®ã‚¢ã‚¯ã‚»ã‚¹ã‚’å—ã‘ã‚‹å¤–éƒ¨ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã®ã»ã‹ã«ã€å†…éƒ¨ã‚µãƒ¼ãƒ“ã‚¹ç”¨ã®ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã‚‚é…ç½®ã—ã¦ã„ã¾ã™ã€‚ãã‚Œãžã‚Œactive, backupã§2å°ãšã¤ã‚ã‚‹ã®ã§åˆè¨ˆã§4å°ã‚‚ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µãŒã‚ã‚‹ã“ã¨ã«ãªã‚Šã¾ã™ã€‚(ã“ã‚“ãªæ§‹æˆã‚’è£½å“ã‚’ä½¿ã£ã¦çµ„ã‚“ã ã‚‰æ•°åƒä¸‡å††ã™ã£ã¨ã³ã¾ã™ã) ã¾ãŸã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ–ãƒ¼ãƒˆã§ãƒ‡ã‚£ã‚¹ã‚¯ãƒ¬ã‚¹ãªæ§‹æˆã«ã—ã¦ã„ã‚‹ã®ã§ã€ãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ãŒå£Šã‚Œã¦ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µãŒãƒ€ã‚¦ãƒ³ã—ãŸã€ãªã‚“ã¦ã“ã¨ã‚‚ã‚ã‚Šã¾ã›ã‚“ã€‚ ã§ã™ã®ã§ã€Œãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã¯é«˜ãã¦ãªã‹ãªã‹å°Žå…¥ã§ããªã„ã€ã¨ã„ã†è©±ã‚’è€³ã«ã™ã‚‹åº¦ã«LVSã‚’ãŠå‹§ã‚ã—ã¦ã„ã‚‹ã®ã§ã™ãŒã€ã©ã†ã‚‚ã€ ãªã‚“ã‹é›£ã—ãã† ã¡ã‚ƒã‚“ã¨å‹•ãã‹ä¸å®‰ æ€§èƒ½ãŒå‡ºãªã„ã‚“ã˜ã‚ƒãªã„ã‹ ç‰ã€…
mi_kattun 2016/02/19
linux

network

keepalived
ãƒªãƒ³ã‚¯
IP ã‚¨ã‚¤ãƒªã‚¢ã‚¹ã¯å†—é•·æ§‹æˆã®åŸºæœ¬
IP ã‚¨ã‚¤ãƒªã‚¢ã‚¹ã¯å†—é•·æ§‹æˆã®åŸºæœ¬ 1 minute read Published: 12 Nov, 2010 æœ€è¿‘ã¯ IPv4 æž¯æ¸‡ã«å‚™ãˆã¦ IPv6 ãŒé¨’ãŒã‚Œã¦ã„ã¾ã™ãŒã€æœªã ã«ãƒ‡ãƒ¼ã‚¿ã‚»ãƒ³ã‚¿ãƒ¼ã§ã‚‚å¯¾å¿œã—ã¦ã„ã‚‹ã¨ã“ã‚ã‚’è¦‹ãŸã“ã¨ãŒã‚ã‚Šã¾ã›ã‚“ã€‚IPv6 ã¯"ãƒãƒ¼ã‚¿ãƒ“ãƒªãƒ†ã‚£"ã®ç‰¹æ€§ã‚’æŒã£ã¦ã„ã¦å…¨ã¦ã®ãƒ‡ãƒã‚¤ã‚¹ã§å›ºæœ‰ã® IP ã‚’æŒã¤ã‚ˆã†ã«è€ƒãˆã‚‰ã‚Œã¦ã„ã¾ã™ï¼ˆã¾ã‚‹ã§ Mac ã‚¢ãƒ‰ãƒ¬ã‚¹ï¼‰ã€‚ ä¸€æ–¹ã€çµæ§‹å¤ãã‹ã‚‰ UNIXã€Linuxã€Windows ç‰ã§ã¯ã€ŒIP ã‚¨ã‚¤ãƒªã‚¢ã‚¹ã€ã¨ã„ã†æŠ€è¡“ãŒä½¿ãˆã‚‹ã‚ˆã†ã«ãªã£ã¦ã„ã¾ã™ã€‚ ä»Šå›žã¯ã‚¤ãƒ³ãƒ•ãƒ©æŠ€è¡“ã§ã‚ã‚‹å†—é•·æ§‹æˆã‚’æ§‹ç¯‰ã™ã‚‹ä¸Šã§åŸºç¤Žã¨ãªã‚‹ã€ŒIP ã‚¨ã‚¤ãƒªã‚¢ã‚¹ã€ã«ã¤ã„ã¦è€ƒãˆã¦ã¿ã¾ã™ã€‚ IP ã‚¨ã‚¤ãƒªã‚¢ã‚¹ã¨ã¯ ã€ŒIP ã‚¨ã‚¤ãƒªã‚¢ã‚¹ã€ã¨ã¯ç‰©ç†çš„ã«ä¸€ã¤ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚«ãƒ¼ãƒ‰ï¼ˆNICï¼‰ã« 2ã¤ä»¥ä¸Šã® IP ã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’å‰²ã‚Šå½“ã¦ã‚‹æ–¹æ³•ã§ã™ã€‚ã“ã®ã“ã¨ã«ã‚ˆã‚Šã€ä¸€ã¤ã—ã‹ NIC ã‚’æŒã£ã¦ã„ãªã„ã‚µãƒ¼ãƒã«ä¾‹ãˆ
mi_kattun 2016/02/19
network
ãƒªãƒ³ã‚¯
[VirtualBox] ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚ãƒ³ã‚°æ§‹æˆã‚’ç†è§£ã—ã¦é¸æŠžã™ã‚‹ : Macãƒ»iPhoneãƒ»iPad ã‚’ä½¿ã„å€’ã—ãŸã„
Macãƒ»iPhoneãƒ»iPad ã‚’ä½¿ã„å€’ã—ãŸã„ Apple è£½å“ã® Mac, iPhone, iPad ãªã©ã‚’ä½¿ã„å€’ã™ãŸã‚ã®ä½¿ã„æ–¹ã‚„ Tips ã®ç´¹ä»‹ Mac OS X ä¸Šã®ä»®æƒ³ç’°å¢ƒã¨ã—ã¦ã€Oracle VirtualBox ã‚’åˆ©ç”¨ã—ã¦ã„ã¾ã™ã€‚ VirtualBox ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯è¨å®šã¯å¹¾ã¤ã‹ã‚ã‚Šã¾ã™ã€‚ä»Šå›žã€ãã®é•ã„ã‚’ç†è§£ã™ã‚‹ãŸã‚ã«èª¿ã¹ã¦ã¿ã¾ã—ãŸã€‚ â€» ä»¥é™ã®å›³ã‚„æ§‹æˆã¯ç†è§£ã™ã‚‹ã“ã¨ã‚’å„ªå…ˆã«ä½œæˆã—ãŸã®ã§ã€æŠ€è¡“çš„ã«å¿…ãšã—ã‚‚æ£ã—ããªã„ç®‡æ‰€ãŒã‚ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ã€‚ â€» VirtualBox ã‚’åˆ©ç”¨ã—ãŸãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æ§‹æˆã¯æ§˜ã€…ãªçŠ¶æ³ãŒè€ƒãˆã‚‰ã‚Œã€ä»¥ä¸‹ã¯ä¸€ä¾‹ã§ã™ã€‚ VirtualBox ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã¨ã—ã¦è¨å®šã§ãã‚‹ã€ä»¥ä¸‹ï¼”ã¤ã®è¨å®šã‚’ãã‚Œãžã‚Œè¦‹ã¦ã¿ã¾ã™ã€‚ NAT Briddged Adapter Internal Network Host-only Adapter VirtualBox ã§è¨å®šã§ãã‚‹ ãƒãƒƒãƒˆãƒ¯
mi_kattun 2016/02/08
virtualbox

network
ãƒªãƒ³ã‚¯
ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯è¨å®š â€“ VirtualBox Mania
â€»ãƒãƒ¼ãƒˆãƒ•ã‚©ãƒ¯ãƒ¼ãƒ‰ãŒå¿…è¦ åˆå¿ƒè€…ã®æ–¹ã¯ãƒ›ã‚¹ãƒˆOSã¨åŒã˜ã‚ˆã†ã«æ‰±ãˆã‚‹ãƒ–ãƒªãƒƒã‚¸ã‚¢ãƒ€ãƒ—ã‚¿ãƒ¼ã‚’ãŠã™ã™ã‚ã—ã¾ã™ã€‚ åå‰ ãƒ–ãƒªãƒƒã‚¸ã‚¢ãƒ€ãƒ—ã‚¿ã‚’é¸æŠžã—ã¦ã„ã‚‹æ™‚ã«ã¯ã€ãƒ›ã‚¹ãƒˆãƒžã‚·ãƒ³ä¸Šã®ã©ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¢ãƒ€ãƒ—ã‚¿ã‚’ä½¿ã†ã‹ã‚’é¸æŠžã—ã¾ã™ã€‚ NATãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚’é¸æŠžã—ã¦ã„ã‚‹ã¨ãã«ã¯ã€ç’°å¢ƒè¨å®šã§è¨å®šã—ãŸãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚’é¸æŠžã—ã¾ã™ã€‚ ã‚¢ãƒ€ãƒ—ã‚¿ãƒ¼ã‚¿ã‚¤ãƒ— ã‚¢ãƒ€ãƒ—ã‚¿ã‚¿ã‚¤ãƒ—ã«ã¯ä»¥ä¸‹ã®6ç¨®é¡žãŒã‚ã‚Šã¾ã™ã€‚ PC Net PCI II (Am79C970A) PC Net FAST III (Am79C973) Intel PRO/1000 MT Desktop (82540EM) Intel PRO/1000 T Server (82543GC) Intel PRO/1000 MT Server (82545EM) æº–ä»®æƒ³åŒ–ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ ï¼ˆvirtio-net) ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®PC Net FAST IIIã¯ã»ã¨ã‚“ã©ã®ã‚²ã‚¹ãƒˆOSã§è¿½åŠ ã®ãƒ‰ãƒ©ã‚¤ãƒ
mi_kattun 2016/02/08
virtualbox

network
ãƒªãƒ³ã‚¯
DNS Processes and Interactions | Microsoft Docs
This browser is no longer supported. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Applies To: Windows Server 2008 DNS processes and interactions involve the communications between DNS clients and DNS servers during the resolution of DNS queries and dynamic update, and between DNS servers during name resolution and zone administration.
mi_kattun 2015/09/28
windows

network
ãƒªãƒ³ã‚¯
å„ªå…ˆDNSã‚µãƒ¼ãƒã¨ä»£æ›¿DNSã‚µãƒ¼ãƒã®å‹•ä½œã«ã¤ã„ã¦
å¯¾è±¡OSï¼šWindows 2000 Professionalï¼Windows XP Professionalï¼Windows XP Home Editionï¼Windows 2000 Serverï¼Windows 2000 Advanced Server è§£èª¬ Windows 2000ï¼XPã®TCP/IPã‚’è¨å®šã™ã‚‹å ´åˆã€IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚„ã‚µãƒ–ãƒãƒƒãƒˆãƒ»ãƒžã‚¹ã‚¯ã€ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆãƒ»ã‚²ãƒ¼ãƒˆã‚¦ã‚§ã‚¤ãªã©ã‚’è¨å®šã—ãªã‘ã‚Œã°ãªã‚‰ãªã„ãŒã€ãã®ã»ã‹ã«ã‚‚ã€ŒDNSã‚µãƒ¼ãƒã€ã‚’æ£ã—ãè¨å®šã—ã¦ãŠã‹ãªã„ã¨ã€ã»ã‹ã®ãƒžã‚·ãƒ³ã¸ã®æŽ¥ç¶šï¼ˆãƒãƒ¼ã‚«ãƒ«ã®ã‚µãƒ¼ãƒã‚„ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆä¸Šã®ãƒ›ã‚¹ãƒˆãªã©ã¸ã®æŽ¥ç¶šï¼‰ãŒã†ã¾ãè¡Œãˆãªããªã£ãŸã‚Šã™ã‚‹ã€‚ã“ã“ã§ã„ã†ã€ŒDNSã‚µãƒ¼ãƒã€ã¨ã¯ã€ä¾‹ãˆã°www.atmarkit.co.jpã¨ã„ã†FQDNã‹ã‚‰IPã‚¢ãƒ‰ãƒ¬ã‚¹ã¸ã®å¤‰æ›ã‚’è¡Œã†ã€ã€Œåå‰è§£æ±ºã€ã¨ã„ã†ã‚µãƒ¼ãƒ“ã‚¹ã‚’æ‹…å½“ã™ã‚‹ã‚µãƒ¼ãƒã®ã“ã¨ã§ã‚ã‚‹ã€‚ â—ã€Œå„ªå…ˆDNSã‚µãƒ¼ãƒãƒ¼ã€ã¨ã€Œä»£æ›¿DNSã‚µãƒ¼ãƒ
mi_kattun 2015/09/28
windows

network
ãƒªãƒ³ã‚¯
1 2 3 æ¬¡ã®ãƒšãƒ¼ã‚¸