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TCP Fast Openã®é—‡ã¨ã€Kernelã®ç·©å’Œã‚³ãƒŸãƒƒãƒˆ - ASnoKaze blog
TCP Fast Open TCP Fast Openã¨å‘¼ã°ã‚Œã‚‹æŠ€è¡“ãŒã‚ã‚Šã€RFC 7413ã¨ã—ã¦æ¨™æº–åŒ–ã•ã‚Œã¦ã„ã‚‹ã€‚ ã“ã®TCP Fast Openã‚’ä½¿ã†ã¨ã€ä¸€åº¦ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã‚’è²¼ã£ãŸç›¸æ‰‹ã¨ã¯ã€TCPã®3ã‚¦ã‚§ã‚¤ãƒãƒ³ãƒ‰ã‚·ã‚§ã‚¤ã‚¯ä¸ã«ãƒ‡ãƒ¼ã‚¿ã‚’é€å—ä¿¡ã§ãã‚‹ã‚ˆã†ã«ãªã‚‹ã€‚ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‹ã‚‰SYNã¨ã¨ã‚‚ã«ãƒ‡ãƒ¼ã‚¿ã‚’é€ä¿¡ã™ã‚‹ã“ã¨ã§ã€å®Ÿéš›ã«ãƒ‡ãƒ¼ã‚¿ã‚’é€å—ä¿¡é–‹å§‹ã™ã‚‹ã¾ã§ã®å¾…ã¡æ™‚é–“ãŒçŸç¸®ã§ãã‚‹ã€‚ Linuxã§ã¯ã™ã§ã«ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ/ã‚µãƒ¼ãƒä¸¡æ–¹ã§TCP Fast Openã‚’ä½¿ç”¨ã§ãã‚‹ã€‚ TCP Fast Openã®é—‡ ã—ã‹ã—ã€æ•°å¹´å‰ã‚ˆã‚Šã“ã®TCP Fast Openã«ã¯ä¸€éƒ¨ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã§å¥‡å¦™ãªæŒ¯ã‚‹èˆžã„ã‚’ã™ã‚‹ã“ã¨ãŒçŸ¥ã‚‰ã‚Œã¦ã„ã‚‹ã€‚Appleã®äººãŒå®Ÿéš›ã«ãƒ‡ãƒ—ãƒã‚¤ã—ãŸæ™‚ã«è¦‹ã¤ã‘ãŸã‚‚ã®ã§ã€IETFã‚„NANOGã«ã¦å ±å‘Šã•ã‚Œã¦ãŠã‚Šã€ãã®æ™‚ã®è³‡æ–™ã¯ä¸‹è¨˜ã®ã¨ãŠã‚Šã§ã‚ã‚‹ Deploying TCP Fast Open in the wild
hiroyukim 2017/05/13
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TCP
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Python: ã‚½ã‚±ãƒƒãƒˆãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ãƒ‘ã‚¿ãƒ¼ãƒ³ - CUBE SUGAR CONTAINER
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hiroyukim 2017/03/30
network

python

socket

unix
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5. ãƒ—ãƒã‚»ã‚¹é…å»¶ (Processing Delay) ãƒ‘ã‚±ãƒƒãƒˆ å‡ºâ¼’å…ˆæ±ºå®š ãƒ˜ãƒƒãƒ€æ›¸ãæ›ãˆ ãƒ•ã‚£ãƒ«ã‚¿ãƒªãƒ³ã‚° QoS çµ±è¨ˆæƒ…å ±å–å¾— ã‚«ãƒ—ã‚»ãƒ«åŒ– çä½“å†…è»¢é€ â€¢ ä¼é€è£…ç½® â€¢ ãƒ¡ãƒ‡ã‚£ã‚¢ã‚³ãƒ³ãƒãƒ¼ã‚¿ â€¢ ã‚¹ã‚¤ãƒƒãƒ â€¢ ãƒ«ãƒ¼ã‚¿ â€¢ NATè£…ç½® â€¢ ä»®æƒ³åŒ–è£…ç½®, IPsec, etc â€¢ é€šä¿¡æ©Ÿå™¨ã®â¼Šâ¼’ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã§å—ä¿¡ã—ã¦ å‡ºâ¼’ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã®ã‚ãƒ¥ãƒ¼ã¸é€ã‚‹ã¾ã§ã«ã‹ã‹ã‚‹æ™‚é–“ å‡ºâ¼’ ã‚ãƒ¥ãƒ¼ ãƒ‘ã‚±ãƒƒãƒˆ ãƒ«ãƒ¼ã‚¿ã®ä¾‹ æš—å·åŒ– 6. ã‚ãƒ¥ãƒ¼ã‚¤ãƒ³ã‚°é…å»¶ (Queueing Delay) â€¢ é€šä¿¡æ©Ÿå™¨ã®å‡ºâ¼’ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã‚ãƒ¥ãƒ¼ã«â¼Šã£ã¦ã‹ã‚‰ å‡ºâ¼’å‡¦ç†ã‚’â¾ãªã†ã¾ã§ã«ã‹ã‹ã‚‹æ™‚é–“ å‡ºâ¼’ã‚ãƒ¥ãƒ¼ â€¢ å‡ºâ¼’å‡¦ç†ã‚ˆã‚Šé€Ÿã„ãƒšãƒ¼ã‚¹ã§ãƒ‘ã‚±ãƒƒãƒˆãŒå±Šãã¨ã‚ãƒ¥ãƒ¼å¾…ã¡ãŒå¢—ãˆã‚‹ â€¢ åºƒå¸¯åŸŸå›žç·šã‹ã‚‰ç‹å¸¯åŸŸå›žç·šã¸ã®è»¢é€ã€â¼€æ™‚çš„ãªè¼»è¼³ (ãƒãƒ¼ã‚¹ãƒˆãƒˆ ãƒ©ãƒ•ã‚£ãƒƒã‚¯) ãªã©ã¸ã®å¯¾å¿œ å„ªå…ˆåˆ¶å¾¡ ã‚ãƒ¥ãƒ¼ã‚¤ãƒ³ã‚° ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒªãƒ³ã‚° 7. ã‚·ãƒªã‚¢ãƒ«åŒ–é…å»¶
hiroyukim 2016/12/27
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latency

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performance
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Linuxãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‰ãƒ©ã‚¤ãƒã®é–‹ç™º - Handwriting
ã“ã®è¨˜äº‹ã¯Linux Advent Calendar 2016 9æ—¥ç›®ã®è¨˜äº‹ã§ã™ã€‚ é…åˆ»ã—ã¦ã—ã¾ã„ç”³ã—è¨³ã”ã–ã„ã¾ã›ã‚“ã€‚ã€‚ã€‚ ã¨ã‚ã‚‹äº‹æƒ…ãŒã‚ã£ã¦1ãƒ¶æœˆåŠã»ã©ç‹¬è‡ªNICã®Linuxå‘ã‘ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‰ãƒ©ã‚¤ãƒã‚’é–‹ç™ºã—ã¦ã„ãŸã€‚ ä»Šå›žã¯ARMç”¨ã®ãƒ‡ãƒã‚¤ã‚¹ãƒ‰ãƒ©ã‚¤ãƒã‚’é–‹ç™ºã—ãŸã€‚NICã¯Xilinxç¤¾ã®FPGAã§ã‚ã‚‹ZYBOã‚’ç”¨ã„ã¦é–‹ç™ºã—ãŸã€‚ ã¾ã ååˆ†ã«å®Ÿç”¨æ®µéšŽã¨ã„ã†ã‚ã‘ã§ã¯ãªã„ãŒã€ã²ã¨ã¾ãšç‹¬è‡ªNICçµŒç”±ã§ã®pingã‚„iperfãŒé€šã£ãŸã®ã§ã€å¾Œå¦ã®ãŸã‚ã«çŸ¥è¦‹ã‚’æ®‹ã—ã¦ãŠããŸã„ï¼ˆèª°å¾—ã ã€ã¨ã„ã†æ„Ÿã˜ã ãŒï¼‰ã€‚ ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã¯ã¾ã å…¬é–‹ã•ã‚Œã¦ã„ãªã„ãŒã€ãã†é ããªã„ã†ã¡ã«å…¬é–‹ã™ã‚‹äºˆå®šï¼ˆãŸã¶ã‚“ï¼‰ã€‚ ã¯ã˜ã‚ã« Linuxã®ãƒ‡ãƒã‚¤ã‚¹ã«ã¯ ã‚ãƒ£ãƒ©ã‚¯ã‚¿ãƒ‡ãƒã‚¤ã‚¹ - ãƒã‚¤ãƒˆå˜ä½ã®ãƒ‡ãƒ¼ã‚¿é€šä¿¡ (e.g. ã‚·ãƒªã‚¢ãƒ«ãƒãƒ¼ãƒˆ) ãƒ–ãƒãƒƒã‚¯ãƒ‡ãƒã‚¤ã‚¹ - ãƒ–ãƒãƒƒã‚¯å˜ä½ã®ãƒ‡ãƒ¼ã‚¿é€šä¿¡ (e.g. ãƒ‡ã‚£ã‚¹ã‚¯) ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‡ãƒã‚¤ã‚¹ ã®3ç¨®é¡žãŒã‚ã‚‹ã€‚ãƒ
hiroyukim 2016/12/11
ãƒ‰ãƒ©ã‚¤ãƒ

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Linux

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ã„ã¾ã™ãå®Ÿè·µ! Linuxã‚·ã‚¹ãƒ†ãƒ ç®¡ç†
ã€Œã„ã¾ã™ãå®Ÿè·µ! Linux ã‚·ã‚¹ãƒ†ãƒ ç®¡ç†ã€ã¯ã“ã¡ã‚‰ã§ã™ã€‚ ãƒ¡ãƒ«ãƒžã‚¬ã®è§£é™¤ã€ãƒãƒƒã‚¯ãƒŠãƒ³ãƒãƒ¼ãªã©ã‚‚ã€ä»¥ä¸‹ã‹ã‚‰ã©ã†ãžã€‚ https://www.usupi.org/sysad/ (ã¾ãã¾ã ID:149633) ãã®ä»–ã€ä½œè€…ã«é–¢ã™ã‚‹ãƒšãƒ¼ã‚¸ã¯ã€æ¦‚ãä»¥ä¸‹ã«ã”ã–ã„ã¾ã™ã€‚ https://www.usupi.org/kuri/ (ã¾ãã¾ã ID:126454) http://usupi.seesaa.net/ (æ —æ—¥è¨˜ãƒ–ãƒã‚°) https://twitter.com/kuriking/ (twitter) https://facebook.com/kuriking3 (facebook) https://jp.pinterest.com/kuriking/pinterest) https://www.instagram.com/kuri_king_/ (instagram) [ãƒãƒƒã‚¯ãƒŠãƒ³ãƒãƒ¼ã®ãƒˆãƒƒãƒ—ã¸
hiroyukim 2015/11/19
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Linux
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QoSï¼ˆQuality of Serviceï¼‰ã¨ã¯
â—†ã€€QoSã¨ã¯ QoSï¼ˆQuality of Serviceï¼‰ã¨ã¯ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ä¸Šã§æä¾›ã™ã‚‹ã‚µãƒ¼ãƒ“ã‚¹å“è³ªã®ã“ã¨ã€‚ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æ©Ÿå™¨ã« QoSã‚’å®Ÿè£…ã™ã‚‹ã“ã¨ã§ã€ã‚ã‚‹ç‰¹å®šã®é€šä¿¡ã‚’å„ªå…ˆã—ã¦ä¼é€ã•ã›ãŸã‚Šã€å¸¯åŸŸå¹…ã‚’ç¢ºä¿ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ å…ˆãšã€ä¸‹å›³ã§QoSã‚’å®Ÿè£…ã—ã¦ã„ãªã„çŠ¶æ…‹ã‚’è¦‹ã¦ã¿ã¾ã—ã‚‡ã†ã€‚QoSã‚’å®Ÿè£…ã—ã¦ã„ãªã„å ´åˆã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ æ§‹æˆã«ã‚ˆã‚Šã€éŸ³å£°ãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã«é…å»¶ã‚„ã€éŸ³å£°ãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã®ãƒ‘ã‚±ãƒƒãƒˆã«ãƒ‰ãƒãƒƒãƒ—ãŒç™ºç”Ÿã™ã‚‹å¯èƒ½æ€§ãŒ ã‚ã‚‹ã“ã¨ãŒåˆ†ã‹ã‚Šã¾ã™ã€‚ä¸€èˆ¬çš„ã«é€Ÿåº¦ã®ãƒŸã‚¹ãƒžãƒƒãƒã™ã‚‹ãƒã‚¤ãƒ³ãƒˆã§ã“ã®ã‚ˆã†ãªå“è³ªã®å•é¡ŒãŒç™ºç”Ÿã—ã¾ã™ã€‚ FTPãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã¨éŸ³å£°ãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã®ç‰¹æ€§ã¯ä»¥ä¸‹ã®é€šã‚Šã§ã‚ã‚Šã€FTPãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã¨éŸ³å£°ãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ãŒ ç™ºç”Ÿã™ã‚‹ã‚ˆã†ãªãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã§ã¯ã€éŸ³å£°ã®ã‚µãƒ¼ãƒ“ã‚¹å“è³ªç¢ºä¿ã®ãŸã‚ã«ã€QoSã‚’å®Ÿè£…ã™ã¹ãã“ã¨ãŒåˆ†ã‹ã‚Šã¾ã™ã€‚ â€»ã€€FTPãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã«é–¢ä¿‚ãªãã€PCã¨IPé›»è©±ãŒæ··åœ¨ã™ã‚‹ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã§ã¯ã€éŸ³å£°ãƒˆ
hiroyukim 2015/09/28
QoS

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OpenWrt - Wikipedia
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hiroyukim 2015/05/26
Linux

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Python on Ubuntuã§ç°¡æ˜“NATãƒ«ãƒ¼ã‚¿ã‚’å®Ÿè£…ã™ã‚‹æ–¹æ³• : NETBUFFALO
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hiroyukim 2015/05/26
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network
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hiroyukim 2015/05/10
ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯

PC

Linux

Network

åºƒå‘Š
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Linuxã§ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã‚„ã‚ãƒ£ãƒƒã‚·ãƒ¥ã‚µãƒ¼ãƒã‚’ãƒžãƒ«ãƒã‚³ã‚¢ã‚¹ã‚±ãƒ¼ãƒ«ã•ã›ã‚‹ãŸã‚ã®ã‚«ãƒ¼ãƒãƒ«ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚° - ã‚†ã†ã†ããƒ–ãƒã‚°
æœ¬è¨˜äº‹ã®å…¬é–‹å¾Œã®2016å¹´7æœˆã«ã¯ã¦ãªã«ãŠã‘ã‚‹ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°äº‹ä¾‹ã‚’ç´¹ä»‹ã—ãŸã€‚ ã¯ã¦ãªã«ãŠã‘ã‚‹Linuxãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¹ã‚¿ãƒƒã‚¯ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æ”¹å–„ / Linux network performance improvement at hatena - Speaker Deck HAProxy ã‚„ nginx ãªã©ã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã‚„ãƒªãƒãƒ¼ã‚¹ãƒ—ãƒã‚ã‚·ã€memcached ãªã©ã® KVS ã®ã‚ˆã†ãªé«˜ãƒ‘ã‚±ãƒƒãƒˆãƒ¬ãƒ¼ãƒˆã«ãªã‚Šã‚„ã™ã„ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã«ãŠã„ã¦ã€å˜ä¸€ã® CPU ã‚³ã‚¢ã«è² è·ãŒåã‚Šã€ãƒžãƒ«ãƒã‚³ã‚¢ã‚¹ã‚±ãƒ¼ãƒ«ã—ãªã„ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚ ä»Šå›žã¯ã€ã“ã®ã‚ˆã†ãªãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã«ãŠã„ã¦ CPU è² è·ãŒãƒžãƒ«ãƒã‚³ã‚¢ã‚¹ã‚±ãƒ¼ãƒ«ã—ãªã„ç†ç”±ã¨ã€ãƒžãƒ«ãƒã‚³ã‚¢ã‚¹ã‚±ãƒ¼ãƒ«ã•ã›ã‚‹ãŸã‚ã® Linux ã‚«ãƒ¼ãƒãƒ«ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¹ã‚¿ãƒƒã‚¯ã®ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°æ‰‹æ³•ã¨ã—ã¦ RFS (Receive Flow Steering) ã‚’
hiroyukim 2015/03/31
network

tuning

performance

kernel

cpu

Linux
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GitHub - robertswiecki/intrace: Enumeration of IP hops using existing TCP connections
==================================== InTrace is traceroute-like application that enables users to enumerate IP hops using existing TCP connections, both initiated from local network (local system) or from remote hosts. It could be useful for network reconnaissance and firewall bypassing. /* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General P
hiroyukim 2015/03/16
network

tcp

System
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Charming Python: Functional programming in Python, Part 3
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
hiroyukim 2015/01/21
ã‚½ã‚±ãƒƒãƒˆ

ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°

socket

Network

performance

Linux
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Linuxã§ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®ç›£è¦–ã‚’è¡Œãˆã‚‹ãƒ¢ãƒ‹ã‚¿ãƒªãƒ³ã‚°ã‚³ãƒžãƒ³ãƒ‰20é¸ | ä¿ºçš„å‚™å¿˜éŒ² ã€œãªã‚“ã‹ã„ã‚ã„ã‚ã€œ
ä»Šå›žã¯ã€Linuxä¸Šã§ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã®ç›£è¦–ã‚’è¡Œãˆã‚‹ãƒ¢ãƒ‹ã‚¿ãƒªãƒ³ã‚°ã‚³ãƒžãƒ³ãƒ‰ã«ã¤ã„ã¦ã€æ•°ã‚ã‚‹ã‚³ãƒžãƒ³ãƒ‰ã‹ã‚‰20å€‹ã‚’ç´¹ä»‹ã™ã‚‹ã€‚ 1.iftop ä»¥å‰ã«ã“ã¡ã‚‰ã§ã‚‚æ›¸ã„ã¦ã„ã‚‹iftopã¯ã€å€‹åˆ¥ã®ã‚½ã‚±ãƒƒãƒˆã§å—ä¿¡ãƒ»é€ä¿¡ãƒ‘ã‚±ãƒƒãƒˆã‚’ã²ã¨ç›®ã§è¦‹ã‚‹äº‹ãŒå‡ºæ¥ã‚‹ã‚³ãƒžãƒ³ãƒ‰ã€‚ é€šä¿¡ã”ã¨ã«å€‹åˆ¥ã®ãƒ—ãƒã‚»ã‚¹ã‚’è¡¨ç¤ºã•ã›ã‚‹ã“ã¨ã¯å‡ºæ¥ãªã„ãŒã€ã©ã®ãƒ›ã‚¹ãƒˆã¨ã®æŽ¥ç¶šãŒã©ã®ç¨‹åº¦ã®å¸¯åŸŸã‚’ä½¿ç”¨ã—ã¦ã„ã‚‹ã®ã‹ã¯ã²ã¨ç›®ã§åˆ†ã‹ã‚‹ã ã‚ã†ã€‚ ä»¥ä¸‹ã®ã‚³ãƒžãƒ³ãƒ‰ã§ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ãŒå‡ºæ¥ã‚‹ã€‚ sudo apt-get install iftop # Debian/Ubuntuã®å ´åˆ sudo yum install iftop # RHELç³»ã®å ´åˆ 2.bmon ã€Žbmonã€ã¯ã€ã‚°ãƒ©ãƒ•ã§ãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã®è² è·ã‚’è¡¨ç¤ºã—ã¦ãã‚Œã‚‹ãƒ¢ãƒ‹ã‚¿ãƒªãƒ³ã‚°ã‚³ãƒžãƒ³ãƒ‰ã ã€‚ ã©ã®NICã®ãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚’è¡¨ç¤ºã•ã›ã‚‹ã‹ã‚’ä¸Šä¸‹ã‚ãƒ¼ã€ãƒ¢ãƒ‹ã‚¿ãƒªãƒ³ã‚°ã‚’è¡Œã†ãƒ‘ã‚±ãƒƒãƒˆã®ç¨®é¡žã‚’å·¦å³ã‚ãƒ¼ã§é¸æŠžã™ã‚‹ã€‚ ã“ã®ã‚³ãƒžãƒ³
hiroyukim 2015/01/20
ã‚³ãƒžãƒ³ãƒ‰

ã‚°ãƒ©ãƒ•

network

monitoring
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http://www.haifux.org/lectures/172/netLec.pdf
hiroyukim 2015/01/15
kernel

Linux

Network
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ã‚ˆãã‚ã‹ã‚‹Linuxå¸¯åŸŸåˆ¶é™ | GREE Engineering
çŸ¢å£ã§ã™ã€‚ ã¿ãªã•ã‚“ã¯Linuxã®tcã¨ã„ã†æ©Ÿèƒ½ã‚’ã”å˜çŸ¥ã§ã—ã‚‡ã†ã‹ã€‚é€ä¿¡ã™ã‚‹ãƒ‘ã‚±ãƒƒãƒˆã®å¸¯åŸŸåˆ¶å¾¡ã‚’è¡Œã†ã“ã¨ãŒã§ãã‚‹å¤§å¤‰å¼·åŠ›ãªæ©Ÿèƒ½ã§ã€ã‚°ãƒªãƒ¼ã§ã‚‚ã„ãã¤ã‹ã®ç”¨é€”ã§ä½¿ç”¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ å…·ä½“çš„ãªäº‹ä¾‹ã®ä¸€ã¤ã¯Redisã§ã™ã€‚Redisã§ã¯replicationã‚’æ–°è¦ã«é–‹å§‹ã™ã‚‹éš›ã‚„failoverãŒç™ºç”Ÿã—masterãŒåˆ‡ã‚Šæ›¿ã‚ã£ãŸéš›(ç‰¹ã«2.6ç³»)ã«ã‚¹ãƒˆã‚¢ã•ã‚Œã¦ã„ã‚‹å…¨ãƒ‡ãƒ¼ã‚¿ãŒè»¢é€ã•ã‚Œã¾ã™ã€‚ã—ã‹ã—å¸¯åŸŸåˆ¶é™ã‚’ã‹ã‘ã‚‹æ©Ÿèƒ½ãŒãªã„ãŸã‚ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯å¸¯åŸŸã‚’åœ§è¿«ã—ã¦ã—ã¾ã†å±é™ºæ€§ãŒã‚ã‚Šã¾ã™ã€‚ã¾ãŸé€šå¸¸ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã¨ã®é€šä¿¡ã§ã‚‚å¤§é‡ã®ã‚¯ã‚¨ãƒªã«ã‚ˆã‚Šäºˆæƒ³ä»¥ä¸Šã®å¸¯åŸŸã‚’ä½¿ç”¨ã—ã¦ã—ã¾ã†å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã€‚ã“ã®ã‚ˆã†ãªå ´åˆã«tcã‚’ç”¨ã„ã‚‹ã“ã¨ã§Redisã®ä½¿ç”¨ã™ã‚‹å¸¯åŸŸã‚’ã‚³ãƒ³ãƒˆãƒãƒ¼ãƒ«ã§ãã¾ã™ã€‚ ã“ã®ã‚ˆã†ã«æœ‰ç”¨ãªtcã§ã™ãŒæ®‹å¿µãªã“ã¨ã«æ—¥æœ¬èªž/è‹±èªžã¨ã‚‚ã«ã‚ã‹ã‚Šã‚„ã™ã„è§£èª¬ã‚„è©³ç´°ãªæƒ…å ±ã¯å¤šãã‚ã‚Šã¾ã›ã‚“ã€‚ ç§ã‚‚ç¤¾å†…ã«ãŠã„ã¦ä½¿ã‚ã‚Œã¦ã„ãŸtcã®è¨å®šã«å•é¡ŒãŒ
hiroyukim 2014/10/08
Linux

ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯

network
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NetworkManagerã®è¨å®šå¤‰æ›´ã€nmtuiã¨nmcliã«ã¤ã„ã¦ã¾ã¨ã‚ãŸã‚ˆï¼
RHEL 7, CentOS 7ã§ã¯ã€NetworkManager ã®åˆ©ç”¨ãŒæŽ¨å¥¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ä»Šã¾ã§ /etc/sysconfig/network-scripts/ ã®ä¸‹ã‚„ã€ãã®ã»ã‹ã®ã‚³ãƒžãƒ³ãƒ‰ã‚’åˆ©ç”¨ã—ã¦è¡Œã£ã¦ã„ãŸè¨å®šãŒã€ä¸€å…ƒçš„ã«è¨å®šã§ãã‚‹ã‚ˆã†ã«ãªã£ã¦ã„ã¾ã™ã€‚ ã“ã“ã§ã¯ã€ã‚ˆãä½¿ã†ã‚ˆã†ãªè¨å®šã‚’ã€å®Ÿéš›ã®åˆ©ç”¨ä¾‹ã¨ã¨ã‚‚ã«ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸã€‚ NetworkManagerã‚’ãƒ†ã‚ã‚¹ãƒˆãƒ™ãƒ¼ã‚¹ã§åˆ©ç”¨ã™ã‚‹ã«ã¯ã€å¤§ããåˆ†ã‘ã¦nmtuiã‚³ãƒžãƒ³ãƒ‰ã¨nmcliã‚³ãƒžãƒ³ãƒ‰ãŒã‚ã‚Šã¾ã™ã€‚ãã‚Œãžã‚Œã€ãƒ†ã‚ã‚¹ãƒˆãƒ™ãƒ¼ã‚¹ã®UIã¨ã€ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ãƒ„ãƒ¼ãƒ«ã«ãªã£ã¦ã„ã¾ã™ã€‚ nmtui æœ€ã‚‚ç°¡å˜ã«ä½¿ãˆã‚‹ã«ã¯ã€nmtuiã‚³ãƒžãƒ³ãƒ‰ã§ã™ã€‚å®Ÿè¡Œã™ã‚‹ã¨ã€å¯¾è©±çš„ã«ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®è¨å®šã‚’è¡Œã†ã“ã¨ãŒå¯èƒ½ã§ã™ã€‚ä»¥ä¸‹ã«ã‚¹ã‚¯ãƒªãƒ¼ãƒ³ã‚·ãƒ§ãƒƒãƒˆã‚’æŽ²è¼‰ã—ã¾ã™ã€‚ ã„ã‹ãŒã§ã—ã‚‡ã†ã‹ï¼Ÿ åŸºæœ¬çš„ãªè¨å®šã¯ã“ã®UIã‹ã‚‰å¯èƒ½ã§ã™ã€‚å°‘ã—å¤‰ãˆã¦ã¿ã‚‹ã€åˆã‚ã¦ä½¿ã£ã¦ã¿ã‚‹å ´åˆã«ã¯ã“ã¡ã‚‰ã‚’åˆ©ç”¨ã™ã‚‹ã®ãŒ
hiroyukim 2014/07/08
CentOS

Network

è¨å®š
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Javaã§ã®HttpClientã‚µãƒ³ãƒ—ãƒ« - CLOVERðŸ€
å°‘ã—å‰ã«JAX-RSã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚’è§¦ã£ãŸã“ã¨ã‚‚ã‚ã‚Šã€ä¹…ã€…ã«ã„ãã¤ã‹æ›¸ã„ã¦ã¿ãŸããªã‚Šã¾ã—ã¦ã€‚ java.netã‹ã‚‰JAX-RSã¾ã§ã€ã„ãã¤ã‹HttpClientã®ã‚µãƒ³ãƒ—ãƒ«ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’æ›¸ã„ã¦ã¿ãŸã„ã¨æ€ã„ã¾ã™ã€‚ ã‚µãƒ³ãƒ—ãƒ«ã¨ã—ã¦ã¯ã€ ç°¡å˜ãªGETï¼POSTã‚’è¡Œã† HTTPã‚¹ãƒ†ãƒ¼ã‚¿ã‚¹ã‚³ãƒ¼ãƒ‰ãŒ200ã‹ã©ã†ã‹åˆ¤å®šã™ã‚‹ ãƒ¬ã‚¹ãƒãƒ³ã‚¹ã‚’ã‚³ãƒ³ã‚½ãƒ¼ãƒ«ã«å‡ºåŠ›ã™ã‚‹ ã§ã™ã€‚ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã®URLã‚¨ãƒ³ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã¨ã‹ã¾ã§ã¯æ›¸ã„ã¦ãªã„ã®ã§ã€ãã“ã¯å¾®å¦™ã‹ã‚‚ã€‚ã¾ã‚ã€ã“ã‚“ãªã®ãŒã‚ã‚Šã¾ã™ã‚ˆã£ã¦ã“ã¨ã§ã€‚ ãªãŠã€ãƒ“ãƒ«ãƒ‰ãƒ»å®Ÿè¡Œã«ã¯Mavenã‚’ä½¿ç”¨ã—ã¾ã—ãŸã€‚ java.net.URL Javaæ¨™æº–ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã‚’ä½¿ã£ã¦æ›¸ãæ–¹æ³•ã«ãªã‚Šã¾ã™ã€‚ç‰¹ã«Mavenä¾å˜é–¢ä¿‚ãªã©ã¯ä¸è¦ã§ã™ã€‚ ã‚µãƒ³ãƒ—ãƒ«ã‚½ãƒ¼ã‚¹ã€‚ src/main/java/httpclient/example/Java NetHttpClient.java package httpclient.e
hiroyukim 2014/05/04
Java

network

HTTP
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Home - Ceph Wiki
On June 2021, weâ€™re hosting a month of Ceph presentations, lightning talks, and unconference sessions such as BOFs
hiroyukim 2014/05/01
ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ

network

development

Distributed

filesystem

Ceph
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Linux Kernel Networking
Linux Kernel Networking takes you on a guided in-depth tour of the current Linux networking implementation and the theory behind it. Linux kernel networking is a complex topic, so the book won't burden you with topics not directly related to networking. This book will also not overload you with cumbersome line-by-line code walkthroughs not directly related to what you're searching for; you'll find
hiroyukim 2013/11/25
network

Linux

kernel

book
ãƒªãƒ³ã‚¯
IBM Developer
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
hiroyukim 2013/10/13
linux

Programming

network

UNIX

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

Socket
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