[B! Linux] ICHIROã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

ICHIRO id:ICHIRO

Linuxã«é–¢ã™ã‚‹ICHIROã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (71)

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Linuxã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«å¾¹åº•ã‚¬ã‚¤ãƒ‰ | POSTD
è¦ç´„ ã“ã®è¨˜äº‹ã§ã¯ã€Linuxã‚«ãƒ¼ãƒãƒ«ã«ã¦Linuxãƒ—ãƒã‚°ãƒ©ãƒ ãŒã©ã®ã‚ˆã†ã«é–¢æ•°ã‚’å‘¼ã³å‡ºã™ã®ã‹ã«ã¤ã„ã¦ç´¹ä»‹ã—ã¦ã„ãã¾ã™ã€‚ ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã‚’è¡Œã†æ§˜ã€…ãªæ–¹æ³•ã€ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã‚’è¡Œã†ãŸã‚ã®ç‹¬è‡ªã®ã‚¢ã‚»ãƒ³ãƒ–ãƒªã®ä½œæˆæ–¹æ³•ï¼ˆä¾‹ã‚ã‚Šï¼‰ã€ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã¸ã®ã‚«ãƒ¼ãƒãƒ«ã‚¨ãƒ³ãƒˆãƒªãƒã‚¤ãƒ³ãƒˆã€ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã‹ã‚‰ã®ã‚«ãƒ¼ãƒãƒ«ã‚¤ã‚°ã‚¸ãƒƒãƒˆãƒã‚¤ãƒ³ãƒˆã€glibcã®ãƒ©ãƒƒãƒ‘é–¢æ•°ã€ãƒã‚°ãªã©å¤šãã®ç‚¹ã«ã¤ã„ã¦èª¬æ˜Žã—ã¾ã™ã€‚ è¦ç´„ ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã¨ã¯ï¼Ÿ å¿…è¦æ¡ä»¶ã«é–¢ã™ã‚‹æƒ…å ± ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ã¨ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ ãƒ¦ãƒ¼ã‚¶ãƒ—ãƒã‚°ãƒ©ãƒ ã€ã‚«ãƒ¼ãƒãƒ«ã€CPUã®ç‰¹æ¨©ãƒ¬ãƒ™ãƒ« å‰²ã‚Šè¾¼ã¿ ãƒ¢ãƒ‡ãƒ«å›ºæœ‰ãƒ¬ã‚¸ã‚¹ã‚¿ï¼ˆMSRï¼‰ ã‚¢ã‚»ãƒ³ãƒ–ãƒªã‚³ãƒ¼ãƒ‰ã§ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã‚’å‘¼ã³å‡ºã™ã“ã¨ã®å•é¡Œç‚¹ ãƒ¬ã‚¬ã‚·ãƒ¼ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ« ç‹¬è‡ªã®ã‚¢ã‚»ãƒ³ãƒ–ãƒªã‚’ç”¨ã„ãŸãƒ¬ã‚¬ã‚·ãƒ¼ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã®ä½¿ç”¨ ã‚«ãƒ¼ãƒãƒ«å´ã§ã® int $0x80 ã‚¨ãƒ³ãƒˆãƒªãƒã‚¤ãƒ³ãƒˆ iret ã‚’ä½¿ç”¨ã—ãŸãƒ¬ã‚¬ã‚·ãƒ¼ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã‹ã‚‰ã®å¾©å¸° é«˜é€Ÿã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ« 3
ICHIRO 2016/07/29
Linux

system

Reference
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topã‚³ãƒžãƒ³ãƒ‰ã§è¦šãˆã¦ãŠããŸã„ä½¿ã„æ–¹14å€‹ | ä¿ºçš„å‚™å¿˜éŒ² ã€œãªã‚“ã‹ã„ã‚ã„ã‚ã€œ
topã‚³ãƒžãƒ³ãƒ‰ã¨ã„ãˆã°ã€ã‚ˆãLinuxã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹çŠ¶æ…‹ã‚’ãƒ¢ãƒ‹ã‚¿ãƒªãƒ³ã‚°ã™ã‚‹ãŸã‚ã«åˆ©ç”¨ã•ã‚Œã¦ã„ã‚‹ã‚³ãƒžãƒ³ãƒ‰ã ã€‚ ä»Šå›žã¯ã€ãã‚“ãªtopã‚³ãƒžãƒ³ãƒ‰ã§è¦šãˆã¦ãŠããŸã„ä½¿ã„æ–¹14å€‹ã‚’ç´¹ä»‹ã™ã‚‹ã€‚ ãªãŠã€æ¤œè¨¼ã§ä½¿ç”¨ã—ãŸtopã‚³ãƒžãƒ³ãƒ‰ã¯CentOS 7 ã§åˆ©ç”¨ã—ã¦ã„ã‚‹ã€Œprocps-ng version 3.3.9ã€ã®ã‚‚ã®ã¨ãªã£ã¦ã„ã‚‹ã€‚ 1.åŸºæœ¬çš„ãªä½¿ã„æ–¹ åŸºæœ¬çš„ã«ã¯ã€ã‚ªãƒ—ã‚·ãƒ§ãƒ³ç„¡ã—ã§ä»¥ä¸‹ã®ã‚ˆã†ã«ã‚³ãƒžãƒ³ãƒ‰ã‚’å®Ÿè¡Œã™ã‚‹ã€‚ top top - 07:21:06 up 4 days, 17 min, 4 users, load average: 0.00, 0.00, 0.00 Tasks: 186 total, 1 running, 185 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0
ICHIRO 2015/07/19
Linux

tips

command
ãƒªãƒ³ã‚¯
ã‚µãƒ¼ãƒã®è² è·ãƒ†ã‚¹ãƒˆã®ãŸã‚ã®ã€ä½•ç™¾ä¸‡ã‚‚ã®HTTPãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’ç™ºç”Ÿã•ã›ã‚‹æ–¹æ³• | POSTD
(æ³¨è¨˜ï¼š6/9ã€ã„ãŸã ã„ãŸç¿»è¨³ãƒ•ã‚£ãƒ¼ãƒ‰ãƒãƒƒã‚¯ã‚’å…ƒã«è¨˜äº‹ã‚’ä¿®æ£ã„ãŸã—ã¾ã—ãŸã€‚) ä»Šå›žã®è¨˜äº‹ã¯æ¯Žç§’300ä¸‡ã‚‚ã®ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’å‡¦ç†ã§ãã‚‹ã»ã©å¼·åŠ›ã§é«˜æ€§èƒ½ãªWebã‚¯ãƒ©ã‚¹ã‚¿ã®æ§‹ç¯‰ã«ã¤ã„ã¦ã®ãƒ‘ãƒ¼ãƒˆ1ã«ãªã‚Šã¾ã™ã€‚ã¾ãšåˆã‚ã«ã€ã‚ã¾ã‚Šå¤šãã¯ã‚ã‚Šã¾ã›ã‚“ãŒã€ç§ãŒã“ã‚Œã¾ã§ä½¿ç”¨ã—ãŸã“ã¨ã®ã‚ã‚‹ãƒãƒ¼ãƒ‰ã‚¸ã‚§ãƒãƒ¬ãƒ¼ã‚¿ãƒ„ãƒ¼ãƒ«ã‚’ã„ãã¤ã‹ç´¹ä»‹ã—ã¾ã™ã€‚ç§ã®ã‚ˆã†ã«ã¦ã“ãšã£ã¦æ™‚é–“ã‚’ã‹ã‘ã¦ã—ã¾ã‚ãªã„ã‚ˆã†ã€ä»Šå›žã®è¨˜äº‹ãŒç†è§£ã®æ‰‹åŠ©ã‘ã«ãªã‚Œã°å¹¸ã„ã§ã™ã€‚ ãƒãƒ¼ãƒ‰ã‚¸ã‚§ãƒãƒ¬ãƒ¼ã‚¿ã¯ãƒ†ã‚¹ãƒˆã‚’ç›®çš„ã¨ã—ãŸæ•°ç¨®é¡žã®ãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚’ç™ºç”Ÿã•ã›ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒ ã§ã™ã€‚ãã‚Œã«ã‚ˆã£ã¦é«˜è² è·ã«ãŠã„ã¦ã‚µãƒ¼ãƒãŒã©ã®ã‚ˆã†ã«å‹•ã„ã¦ã„ã‚‹ã‹ã€ãã®ã‚µãƒ¼ãƒã®å¼±ç‚¹ã¯ã©ã“ãªã®ã‹ã€ãªã©ãŒè¦‹ãˆã¦ãã¾ã™ã€‚è² è·ãƒ†ã‚¹ãƒˆã‚’é€šã˜ã¦ã‚µãƒ¼ãƒã®é™ç•Œã‚’çŸ¥ã‚‹ã“ã¨ã¯ã€ã‚µãƒ¼ãƒã®ãƒ¬ã‚¸ãƒªã‚¨ãƒ³ã‚·ãƒ¼ã‚’æ¸¬å®šã™ã‚‹æœ€é©ãªæ–¹æ³•ã§ã‚ã‚Šã€ã‚ã‚‰ã‚†ã‚‹å•é¡Œã«å¯¾ã™ã‚‹æº–å‚™ã®æ‰‹åŠ©ã‘ã«ã‚‚ãªã‚Šã¾ã™ã€‚ ãƒãƒ¼ãƒ‰ã‚¸ã‚§ãƒãƒ¬ãƒ¼ã‚¿ãƒ„ãƒ¼ãƒ« è² è·ãƒ†ã‚¹ãƒˆã‚’ã™ã‚‹éš›ã«é ã«å…¥ã‚Œã¦ãŠãã¹
ICHIRO 2015/06/06
Linux

tool
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Understanding Linux CPU stats | Scout Monitoring
Updated version of an article first published on February 24th, 2015. Your Linux server is running slow, so you follow standard procedure and run top. You see the CPU metrics: But what do all of those 2-letter abbreviations mean? The 3 CPU states Letâ€™s take a step back. There are 3 general states your CPU can be in: Idle, which means it has nothing to do. Running a user space program, like a comma
ICHIRO 2015/02/25
Linux

tech
ãƒªãƒ³ã‚¯
process-book
ã“ã®æ–‡æ›¸ã¯ãªã‚“ã§ã™ã‹ï¼Ÿ ã“ã®æ–‡æ›¸ã¯*nixç³»ã®ã‚·ã‚¹ãƒ†ãƒ ã«ãŠã‘ã‚‹ãƒ—ãƒã‚»ã‚¹ã‚„ã‚·ã‚°ãƒŠãƒ«ãªã©ã«ã¤ã„ã¦èª¬æ˜Žã™ã‚‹ã“ã¨ã‚’ç›®çš„ã«æ›¸ã‹ã‚Œã¾ã—ãŸã€‚ã€Œãƒ—ãƒã‚»ã‚¹ã¨ã‹ã‚ˆãã‚ã‹ã£ã¦ãªã„ã‹ã‚‰ã¡ã‚ƒã‚“ã¨çŸ¥ã‚ŠãŸã„ãªã€ã¿ãŸã„ãªã²ã¨ãŸã¡ãŒæƒ³å®šèªè€…ã§ã™ã€‚ æ›¸ã„ã¦ã„ã‚‹ã‚ã„ã ã¯ gist ã§ç®¡ç†ã•ã‚Œã¦ã„ãŸã®ã§ã™ãŒã€ãƒœãƒªãƒ¥ãƒ¼ãƒ ãŒå¤§ãããªã£ãŸã®ã§ github ã§ç®¡ç†ã™ã‚‹ã‚ˆã†ã«å¤‰ãˆã¾ã—ãŸã€‚ ç›®æ¬¡ å°Žå…¥ ãƒ—ãƒã‚»ã‚¹ã®ç”Ÿæˆ ãƒ—ãƒã‚»ã‚¹ã¨ãƒ•ã‚¡ã‚¤ãƒ«å…¥å‡ºåŠ› ãƒ•ã‚¡ã‚¤ãƒ«ãƒ‡ã‚£ã‚¹ã‚¯ãƒªãƒ—ã‚¿ preforkã‚µãƒ¼ãƒãƒ¼ã‚’ä½œã£ã¦ã¿ã‚ˆã† ã‚¾ãƒ³ãƒ“ãƒ—ãƒã‚»ã‚¹ã¨å¤å…ãƒ—ãƒã‚»ã‚¹ ã‚·ã‚°ãƒŠãƒ«ã¨kill ãƒ—ãƒã‚»ã‚¹ã‚°ãƒ«ãƒ¼ãƒ—ã¨ãƒ•ã‚©ã‚¢ã‚°ãƒ©ãƒ³ãƒ‰ãƒ—ãƒã‚»ã‚¹ epub ã¨ pdf epubåŒ–ã—ãŸã‚‚ã®ã€pdfåŒ–ã—ãŸã‚‚ã®ãŒ release ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã«å…¥ã£ã¦ã„ã¾ã™ã€‚thanks to mitukiii & moznionï¼ ãƒ©ã‚¤ã‚»ãƒ³ã‚¹ ã“ã® ä½œå“ ã¯ ã‚¯ãƒªã‚¨ã‚¤ãƒ†ã‚£ãƒ–ãƒ»ã‚³ãƒ¢ãƒ³ã‚º è¡¨ç¤º - ç¶™æ‰¿ 3.0 éžç§»
ICHIRO 2015/02/04
Book

Linux

system
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tmuxã§è¤‡æ•°ã‚µãƒ¼ãƒã®åŒæ™‚ã‚ªãƒšãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³
ã‚¤ãƒ³ãƒ•ãƒ©æ‹…å½“ã®æ± ç”°ï¼ˆ@mikedaï¼‰ã§ã™ã€‚ tmuxã‚’ä½¿ã„åˆã‚ã¦1å¹´ãã‚‰ã„ã«ãªã‚Šã¾ã—ãŸã€‚ ä»Šæ—¥ã¯tmuxã®ã€æ™®æ®µã®ã‚ªãƒšãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã§ã‚ˆãä½¿ã£ã¦ã‚‹æ©Ÿèƒ½ã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ è¤‡æ•°ã‚µãƒ¼ãƒã§åŒæ™‚ã‚ªãƒšãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ tmuxã«ã¯ã‚ãƒ¼å…¥åŠ›ã‚’å…¨ã¦ã®paneã§åŒæœŸã™ã‚‹æ©Ÿèƒ½ãŒã‚ã‚Šã¾ã™ã€‚ ã“ã®æ©Ÿèƒ½ã‚’ä½¿ã£ã¦è¤‡æ•°paneã§ãã‚Œãžã‚Œåˆ¥ã®ã‚µãƒ¼ãƒã«sshãƒã‚°ã‚¤ãƒ³ã™ã‚‹ã¨ã€ è¤‡æ•°ã‚µãƒ¼ãƒã«åŒã˜ã‚³ãƒžãƒ³ãƒ‰ã‚’æ‰“ã£ãŸã‚Šã€ å†…å®¹ãŒåŒã˜è¨å®šãƒ•ã‚¡ã‚¤ãƒ«ã§ã‚ã‚Œã°viã§åŒæ™‚ç·¨é›†ã—ãŸã‚ŠãŒã§ãã¾ã™ã€‚ åŒæœŸã™ã‚‹/ã—ãªã„ã¯ã‚³ãƒžãƒ³ãƒ‰ã§ã‚‚åˆ‡ã‚Šæ›¿ãˆã‚‰ã‚Œã¾ã™ãŒã€ set-window-option synchronize-panes on set-window-option synchronize-panes off tmux.confã«ã‚·ãƒ§ãƒ¼ãƒˆã‚«ãƒƒãƒˆã‚’è¨å®šã—ã¦ãŠãã¨ä¾¿åˆ©ã§ã™ã€‚ bind e setw synchronize-panes on bind E setw sy
ICHIRO 2014/01/10
Linux

tips
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æ–°208.5æ—¥å•é¡Œ - Systems with IntelÂ® XeonÂ® Processor E5 hung after upgrade of Red Hat Enterprise Linux 6
Linux ã®é€£ç¶šç¨¼åƒæ™‚é–“ãŒ 208.5 æ—¥ã‚’éŽãŽãŸæ®µéšŽã§çªå¦‚ Kernel Panic ã‚’å¼•ãèµ·ã“ã™ã¨ã„ã†éŽæ¿€ãªæŒ™å‹•ã§2011å¹´ã®å¹´ã®ç€¬ã«è©±é¡Œã¨ãªã£ãŸ "æ—§208.5æ—¥å•é¡Œ" ã§ã™ãŒã€ã‚ã‚Œã‹ã‚‰äºŒå¹´ãŒçµŒã£ãŸä»Šã€Linux Kernel å†…ã® bug ã¨ Intel Xeon CPU ã® bug ã®åˆã‚ã›æŠ€ã«ã‚ˆã‚Šå†åº¦é¡žä¼¼ã®ä¸å…·åˆãŒç™ºç”Ÿã™ã‚‹ã“ã¨ãŒåˆ†ã‹ã£ã¦ã„ã¾ã™ã€‚ æ—§ 208.5 æ—¥å•é¡Œã®ç™ºç”ŸåŽŸç†ã«é–¢ã—ã¦ã¯ä»¥ä¸‹ã® blog ãŒå‚è€ƒã«ãªã‚Šã¾ã™ã€‚ okkyã®éŠ€æ²³åˆ¶åœ§å¥‡èš : sched_clock() overflow after 208.5 days in Linux Kernel è¿½è¨˜(2014/1/4) æ–°208.5æ—¥å•é¡Œã®ç°¡æ˜“ãƒã‚§ãƒƒã‚¯ãƒ„ãƒ¼ãƒ«ã‚’ä½œæˆã—ã¾ã—ãŸã€‚ã‚ˆã‚ã—ã‘ã‚Œã°ãŠä½¿ã„ä¸‹ã•ã„ã€‚ tsc_checker - æ–°208.5æ—¥å•é¡Œç°¡æ˜“ãƒã‚§ãƒƒã‚¯ãƒ„ãƒ¼ãƒ« ã¾ãŸã€Linux Kernel ã«ãŠã‘ã‚‹æ™‚é–“
ICHIRO 2013/12/24
Linux
ãƒªãƒ³ã‚¯
208.5 æ—¥å•é¡Œã®é€†è¥²
æ˜¨å¹´ã®å§‹ã‚é ƒã€ 208.5 æ—¥ä»¥ä¸Šé€£ç¶šç¨¼åƒã™ã‚‹ã¨å‹•ä½œãŒåœæ¢ã—ãŸã‚Š kernel panic ãŒç™ºç”Ÿã—ãŸã‚Šã™ã‚‹å¯èƒ½æ€§ãŒã‚ã‚‹ã¨ã„ã† TSC çµ¡ã¿ã®ä¸å…·åˆãŒè©±é¡Œã«ãªã‚Šã¾ã—ãŸã€‚ Linux ã‚«ãƒ¼ãƒãƒ«ã® sched_clock() ãŒ 208.5 æ—¥ã®é€£ç¶šç¨¼åƒã§ã‚ªãƒ¼ãƒãƒ¼ãƒ•ãƒãƒ¼ã™ã‚‹ç¾è±¡ã«ã¤ã„ã¦ https://access.redhat.com/site/solutions/121233 Does Red Hat Enterprise Linux 6 or 5 have a reboot probl em which is caused by sched_clock() overflow around 208.5 days? https://access.redhat.com/site/solutions/68466 ã—ã‹ã—ã€ä¸Šè¨˜ã®ä¸å…·åˆã‚’ä¿®æ£ã—ãŸã‚«ãƒ¼ãƒãƒ«ã«ã¯è½ã¨ã—ç©´ãŒã‚ã£ãŸã‚ˆã†ã§ã™ã€‚ï¼ˆèª°ã‚‚è©±é¡Œã«ã—ãªã„
ICHIRO 2013/12/24
Linux
ãƒªãƒ³ã‚¯
Linux Java Thread Priorities workaround
First and foremost: This workaround was found by Akshaal, and his blogentry about the probl em and the "fix" is here (2008-04-28). Secondly: Fix/Workaround to let Java on Linux work somewhat with Thread priorities, start the JVM with the following argument:-XX:ThreadPriorityPolicy=42 For some annoying reason, Sun has decided that to run with threads with working thread priorities on Linux, you have
ICHIRO 2013/11/15
Java

Linux
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Oracle ORIONã®ä½¿ç”¨æ–¹æ³• ï¼ˆLinuxãƒ‡ã‚£ã‚¹ã‚¯ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ï¼‰
Oracleç¤¾ãŒæä¾›ã™ã‚‹ãƒ‡ã‚£ã‚¹ã‚¯IOæ€§èƒ½ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ãƒ„ãƒ¼ãƒ«ã€ŒORIONã€ã‚’ç”¨ã„ã¦ã€Linuxç’°å¢ƒä¸Šã§ãƒ‡ã‚£ã‚¹ã‚¯ã®IOæ€§èƒ½ã‚’æ¸¬å®šã™ã‚‹éš›ã®æ‰‹é †ãƒ¡ãƒ¢ã§ã™ã€‚ ã€ŒORIONã€ã¯ã€Oracle Databaseã®IOåˆ¶å¾¡ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ãƒ™ãƒ¼ã‚¹ã«ã—ã¦ä½œæˆã•ã‚Œã¦ãŠã‚Šã€RDBMSã®æ§˜ã€…ãªãƒ¯ãƒ¼ã‚¯ãƒãƒ¼ãƒ‰ãƒ‘ã‚¿ãƒ¼ãƒ³ã‚’ã‚·ãƒŸãƒ¥ãƒ¬ãƒ¼ãƒˆã—ã¦ãƒ‡ã‚£ã‚¹ã‚¯IOæ€§èƒ½ã‚’æ¸¬å®šã§ãã‚‹å„ªã‚ŒãŸãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã‚½ãƒ•ãƒˆã§ã™ã€‚Windowsç‰ˆãƒ»Linuxç‰ˆãƒ»Solarisç‰ˆãƒ»AIXç‰ˆãƒ»HP-UXç‰ˆãŒæä¾›ã•ã‚Œã¦ãŠã‚Šã€ç•°ãªã‚‹ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ é–“ã§ãƒ‡ã‚£ã‚¹ã‚¯IOæ€§èƒ½ã‚’æ¯”è¼ƒã™ã‚‹ç”¨é€”ã§ã‚‚åˆ©ç”¨ã§ãã¾ã™ã€‚ å‹•ä½œç¢ºèªç’°å¢ƒCentOS 6.2 ï¼ˆ2.6.32-220.el6.x86_64 #1 SMPï¼‰ Filesystem : ext4CentOS 5.8 ï¼ˆ2.6.18-308.el5 #1 SMP) Filesystem : ext3Oracle ORION 11.1.0.
ICHIRO 2013/10/10
Linux

tool
ãƒªãƒ³ã‚¯
Deprecated Linux networking commands and their replacements
In my article detailing the command line utilities available for configuring and troubleshooting network properties on Windows and Linux, I mentioned some Linux tools that, while still included and functional in many Linux distributions, are actually considered deprecated and therefore should be phased out in favor of more modern replacements. Specifically, the deprecated Linux networking commands
ICHIRO 2013/05/09
Linux

command

network
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ackã‚’æ¨ã¦ã¦ã€ã‚ˆã‚Šé«˜é€Ÿãªag(The Silver Searcher)ã«åˆ‡ã‚Šæ›¿ãˆãŸ - Glide Note
Geoffâ€™s site: The Silver Searcher: Better than Ack ggreer/the_silver_searcher Â· GitHub ãƒ‘ã‚¿ãƒ¼ãƒ³æ¤œç´¢ã«ã¯ackã‚’åˆ©ç”¨ã—ã¦ã„ã¦ã€é€šå¸¸åˆ©ç”¨æ™‚ã«ã¯ç‰¹ã«ä¸æº€ã¯ç„¡ã‹ã£ãŸã‚“ã§ã™ãŒã€ ãƒ•ã‚¡ã‚¤ãƒ«æ•°ãŒå¤šã„ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã ã¨é…ã‹ã£ãŸã®ã§ã€ã‚‚ã£ã¨ä»–ã®æ–¹æ³•ãŒç„¡ã„ã‹ã¨èª¿ã¹ã¦ã„ãŸã‚‰ ackã®3ã€œ5å€é€Ÿã„ã¨ã„ã†The Silver Searcherã¨ã„ã†ã‚‚ã®ãŒ ã‚ã£ãŸã®ã§å°Žå…¥ã€‚ The Silver Searcherã®ç‰¹å¾´ å…¬å¼ã«æ›¸ã„ã¦ã‚ã‚‹The Silver Searcherã®ç‰¹å¾´ ackã®3ã€œ5å€é«˜é€Ÿ .gitignoreã€.hgignoreã«è¨˜è¼‰ã•ã‚Œã¦ã„ã‚‹ã‚‚ã®ã‚’æ¤œç´¢å¯¾è±¡ã‹ã‚‰é™¤å¤– æ¤œç´¢å¯¾è±¡ã‹ã‚‰é™¤å¤–ã—ãŸã„ãƒ•ã‚¡ã‚¤ãƒ«ã¯.agignoreã«è¨˜è¼‰ agã¨ã„ã†ã‚³ãƒžãƒ³ãƒ‰åã§ã€ackã¨æ¯”ã¹ã¦ã‚³ãƒžãƒ³ãƒ‰ãŒçŸã„(33%æ¸›!) ãªãœé«˜é€Ÿãªã®ã‹ã¯ https
ICHIRO 2013/03/27
Linux

tool

command
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â—†Linux Mintè¨å®š(ã‚µãƒ¼ãƒå´) â‘ ã‚¿ãƒ¼ãƒŸãƒŠãƒ«ã§ä»¥ä¸‹ã‚’å®Ÿè¡Œ(ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—å…±æœ‰ã®è¨å®š) vino-preference â‘¢ã‚¿ãƒ¼ãƒŸãƒŠãƒ«ã§ä»¥ä¸‹ã‚’å®Ÿè¡Œ(vino-serverã®èµ·å‹•) /usr/lib/vino/vino-server â€“sm-disable â—†Mac(ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆå´) â‘ Finderã‚’è¡¨ç¤º â‘¡âŒ˜-Kã§ç”»é¢å…±æœ‰ã‚’é–‹ã â‘¢ã‚µãƒ¼ãƒã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’å…¥åŠ›ã™ã‚‹ vnc://<ã‚¢ãƒ‰ãƒ¬ã‚¹>:5900 â‘£Linux Mintå´ã§ã€Žè¨±å¯ã—ã¾ã™ã‹ï¼Ÿã€ã¨èžã‹ã‚Œã‚‹ã®ã§è¨±å¯ã™ã‚‹ â‘¤æŽ¥ç¶šå®Œäº†
ICHIRO 2013/03/12
Linux

tool
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Re: UNIX Command Idioms - ï¼ˆã²ï¼‰ãƒ¡ãƒ¢
Re: [twitter:@riywo]'s UNIX Command Idioms ps auxwwwwwww number of "w" depends on my mood in that day :D ps auxwwwwwwwww -L netstat -tna / -una / -tnl / -tnap tar xvf tar zxvf / jxvf / Jxvf are boring trailing slash in rsync rsync -av file [file] HOST:dir/ rsync -av dir/ HOST:dir/ tcpdump -i any -nlx strace -s 100 -fFTttt diff -u /path/to/file <(ssh host cat /path/to/file) see also: http://d.haten
ICHIRO 2013/02/28
Linux

tips
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b43 â€” Linux Wireless documentation
For relicensing, the content of this page was removed. The old website for now has a copy of the old content: http://linuxwireless.sipsolutions.net/en/users/Drivers/b43/ b43 and b43legacy are wireless drivers for Broadcom SoftMAC chipsets. Kernel will automatically pick a proper module for you: b43 for any new (supported) hardware b43legacy for BCM4301 and early BCM4306 versions Summary# You need
ICHIRO 2013/02/18
Linux
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NATç’°å¢ƒä¸‹ã§ã¯ net.ipv4.tcp_timestamps = 0 ã™ã‚‹ - ã‹ã¿ã½ã‚ãƒ¼ã‚‹
NATç’°å¢ƒä¸‹ã«è¤‡æ•°ãƒ›ã‚¹ãƒˆãŒã„ã¦ãã„ã¤ã‚‰ãŒã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã®ã¨ãã«ã€WANå´ã®ã‚µãƒ¼ãƒã«æŽ¥ç¶šãŒåˆ‡ã‚‰ã‚Œã‚‹ã¨ãã¯ net.ipv4.tcp_timestamps = 0 ã™ã‚Œã°ã„ã„ã¨ã„ã†ã®ã‚’æ•™ãˆã¦ã‚‚ã‚‰ã„ã¾ã—ãŸï¼ ã€ç·©å‹Ÿã€‘SYN ã« SYN+ACK ã˜ã‚ƒãªã„ãƒ¬ã‚¹ãƒãƒ³ã‚¹å—ã‘å–ã£ã¦ RST ã—ã¡ã‚ƒã†å•é¡Œã®è§£æ±ºæ–¹æ³• 2011-04-01 19:06:11 via YoruFukurou @kamipo ãã‚Œãƒãƒ¼ãƒˆãŒè¶³ã‚Šãªã„ã¨ã‹ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯çš„ã«å•é¡Œã‚ã‚‹ã¨ã‹ãã†ã„ã†ãªã‚“ã˜ã‚ƒãªãã¦ï¼Ÿ 2011-04-01 19:09:18 via Echofon to @kamipo @kamipo é˜²ç«å£ã‹ãªã‚“ã‹ã§å¼¾ã„ã¦ã¾ã›ã‚“ï¼Ÿ 2011-04-01 19:13:09 via Twit Vim to @kamipo @mattn_jp iptablesã§IPãƒžã‚¹ã‚«ãƒ¬ãƒ¼ãƒ‰ã—ã¦ã‚‹Linuxãƒ«ãƒ¼ã‚¿ã‚’gatewayã«ã—ã¦ã‚‹ç’°å¢ƒãªã‚“ã§ã™ãŒã€
ICHIRO 2013/01/17
Linux

network
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Vim ã§ã‚³ãƒ”ãƒšã™ã‚‹ã¨ãã® Tips - åçœã¯ã—ã¦ã‚‚å¾Œæ‚”ã¯ã—ãªã„
ã“ã®è¨˜äº‹ã¯ Vim Advent Calendar 2012 ã® 40 æ—¥ç›®ã®è¨˜äº‹ã§ã™ã€‚ æ˜¨æ—¥ã¯ @kokukuma ã•ã‚“ã®ãªã‚“ã‹vimãŒã‚»ã‚°ãƒ¡ãƒ³ãƒ†ãƒ¼ã‚·ãƒ§ãƒ³ãƒ•ã‚©ãƒ«ãƒˆåã„ãŸã‚“ã§ã™ã‘ã©ã€‚ã€‚ã§ã—ãŸã€‚ ã¯ã˜ã‚ã« ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã«é™ã‚‰ãšã€ä½•ã‹ã‚’æ›¸ãã¨ãã«ã‚³ãƒ”ãƒ¼ï¼†ãƒšãƒ¼ã‚¹ãƒˆã£ã¦ã‚ˆãä½¿ã„ã¾ã™ã‚ˆãã€‚Vim ã§ã‚‚å½“ç„¶ãã®æ©Ÿèƒ½ã¯ã‚ã‚Šã¾ã™ãŒã€Vim ã®å ´åˆã¯ãƒ¬ã‚¸ã‚¹ã‚¿ã¨ã„ã†ä»•çµ„ã¿ã«ã‚ˆã£ã¦ã•ã‚‰ã«ä¾¿åˆ©ã«ä½¿ã†ã“ã¨ãŒã§ãã¾ã™ã€‚ ä»Šå›žã¯ã€ç§ãŒæœ€è¿‘è¦šãˆã¦ã™ã”ãä¾¿åˆ©ã«æ€ã£ãŸã‚³ãƒ”ãƒ¼ï¼†ãƒšãƒ¼ã‚¹ãƒˆã«é–¢ã™ã‚‹å°ãƒã‚¿ã‚’æ›¸ãã¾ã™ã€‚ å‰æçŸ¥è˜ã€€ãƒ¬ã‚¸ã‚¹ã‚¿ã¨ã¯ æ–‡å—åˆ—ã‚’ y ã§ã‚³ãƒ”ãƒ¼ï¼ˆVim ã§ã¯ãƒ¤ãƒ³ã‚¯ã¨ã„ã„ã¾ã™ï¼‰ã™ã‚‹ã¨ã€ãã®æ–‡å—åˆ—ã¯ç„¡åãƒ¬ã‚¸ã‚¹ã‚¿ã«è“„ãˆã‚‰ã‚Œã¾ã™ã€‚d ã¨ã‹ c ã¨ã‹ã§å‰Šé™¤ã—ãŸæ™‚ã‚‚åŒæ§˜ã§ã™ã€‚ç„¡åãƒ¬ã‚¸ã‚¹ã‚¿ã«è¨˜éŒ²ã•ã‚ŒãŸæ–‡å—åˆ—ã‚’è²¼ã‚Šä»˜ã‘ã‚‹ã«ã¯å˜ç´”ã« p ã‚„ P ã‚’ä½¿ã„ã¾ã™ã€‚ "ayy ã¨ã‹ "bdw ã¨ã™ã‚‹ã¨ã€æ˜Žç¤ºçš„ã« a ãƒ¬ã‚¸ã‚¹ã‚¿ã‚„ b ãƒ¬ã‚¸
ICHIRO 2013/01/09
Linux

tips
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Installing Windows Wireless Drivers in Linux
ICHIRO 2013/01/08
Linux
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åŽŸå› èª¿æŸ»ç”¨Linuxã‚³ãƒžãƒ³ãƒ‰ | å¤–é“çˆ¶ã®åŒ
ã‚µãƒ¼ãƒã®å‹•ä½œã«ç•°å¸¸ãŒç™ºç”Ÿã—ãŸéš›ã«åŽŸå› ã‚’æŽ¢ã‚‹ãŸã‚ã®Linuxã‚³ãƒžãƒ³ãƒ‰ã§ã€è‡ªåˆ†ç”¨ã®ãƒ¡ãƒ¢ã§ã™ã€‚ å…¨ã¦manã¨ã‹ã‚°ã‚°ã£ãŸã‚‰å‡ºã¦ãã‚‹ã®ã§èª¬æ˜Žã¯é©å½“ã§ã™ã€‚æ€ã„ã¤ã„ãŸã‚‰å¾Œã§è¿½è¨˜ã—ã¦ã„ãã‹ã‚‚ã§ã™ã€‚ å¯¾è±¡ã¯Debian Squeezeã«ãªã‚Šã¾ã™ã€‚ å…¨ã¦ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã§ãã‚‹ã‚‚ã®ã§ã€ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸åã¯ [in packagename] ã¨ã—ã¦ã‚ã‚Šã¾ã™ã€‚ å„æ‰€ã‚ˆã‚Šã‚³ãƒ¡ãƒ³ãƒˆã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã™ã€‚ è‰¯ã•æ°—ãªã‚³ãƒžãƒ³ãƒ‰ã¯è¿½è¨˜ã—ã¦ã„ãã¾ã™ã€‚ ï¼œè¿½åŠ ã—ãŸã‚³ãƒžãƒ³ãƒ‰ï¼ž * telnet (+ã‚³ãƒ¡ãƒ³ãƒˆ wget, netcat) * arp (+ã‚³ãƒ¡ãƒ³ãƒˆ arpwatch) * pstree * fdisk ã‚³ãƒ¡ãƒ³ãƒˆã« gdisk * host, dig * watch * reboot
ICHIRO 2012/10/23
Linux
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Blogger
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ICHIRO 2012/08/16
Linux

tips
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