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jitsu102 id:jitsu102

Linuxã«é–¢ã™ã‚‹jitsu102ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (338)

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Perlã§å§‹ã‚ã‚‹eBPF: è‡ªä½œLoaderã®ä½œã‚Šæ–¹ | ã•ãã‚‰ã®ãƒŠãƒ¬ãƒƒã‚¸
2024å¹´10æœˆ5æ—¥(åœŸ)ã«ã€ŒYAPC::Hakodate 2024ã€ãŒé–‹å‚¬ã•ã‚Œã¾ã—ãŸã€‚ãã“ã§è¡Œã‚ã‚ŒãŸç™ºè¡¨ã®ä¸ã‹ã‚‰ã€BBSakura Networksæ ªå¼ä¼šç¤¾ã®æ—©å‚å½ªæµã•ã‚“ã«ã‚ˆã‚‹ã€ŒPerlã§å§‹ã‚ã‚‹eBPF: è‡ªä½œLoaderã®ä½œã‚Šæ–¹ã€ã‚’ãƒ¬ãƒãƒ¼ãƒˆã—ã¾ã™ã€‚ ç™ºè¡¨ã®æ§‹æˆã¨ã—ã¦ã¯ã€å‰åŠã§eBPFã®åŸºç¤Žã‚’è§£èª¬ã—ã€å¾ŒåŠã¯Perlã§eBPF Loaderã‚’è‡ªä½œã™ã‚‹éŽç¨‹ã®èª¬æ˜Žã€ãã—ã¦æœ€å¾Œã«ãƒ‡ãƒ¢ã¨ã„ã†å†…å®¹ã§ã—ãŸã€‚ eBPFã®åŸºç¤Ž eBPFã®æ¦‚è¦ eBPF(extended Berkeley Packet Filter)ã¯ã€Linuxã‚«ãƒ¼ãƒãƒ«ã«å¯¾ã™ã‚‹æ‹¡å¼µã‚’ç°¡å˜ã«è¨˜è¿°ã—ã€å‹•çš„ã«ãƒãƒ¼ãƒ‰ã™ã‚‹ä»•çµ„ã¿ã§ã™ã€‚eBPFã‚’ä½¿ã†ã“ã¨ã§ã€æ‰‹è»½ã«ã‚«ãƒ¼ãƒãƒ«ã®æ‹¡å¼µãŒã§ãã‚‹ã ã‘ã§ãªãã€ã‚«ãƒ¼ãƒãƒ«å†…éƒ¨ã§å®Ÿè¡Œã•ã‚ŒãŸé–¢æ•°ã®çµæžœã‚’å–å¾—ã§ãã‚‹ã¨ã‹ã€100Gbpsã‚’è¶…ãˆã‚‹ã‚ˆã†ãªé«˜é€Ÿãªãƒ‘ã‚±ãƒƒãƒˆå‡¦ç†ã‚‚æ‰‹è»½ã«ã§ãã‚‹ã‚ˆã†ã«ãªã‚‹ãªã©ã€ã•ã¾ã–ã¾ãªã“ã¨ãŒã§ãã‚‹ã‚ˆã†
jitsu102 2024/12/31
linux

ebpf

perl
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Linux eBPFãƒˆãƒ¬ãƒ¼ã‚·ãƒ³ã‚°æŠ€è¡“ã®æ¦‚è«–ã¨ãƒ„ãƒ¼ãƒ«å®Ÿè£… - ã‚†ã†ã†ããƒ–ãƒã‚°
eBPFï¼ˆextended Berkley Packet Filterï¼‰ã¨ã„ã†ç”¨èªžã‚’è‘—è€…ãŒåˆã‚ã¦ã¿ã‹ã‘ãŸã®ã¯ã€2015å¹´ã”ã‚ã ã£ãŸã€‚æœ€åˆã¯ã€eBPFã‚’ãã®å—é¢ã®ã¨ãŠã‚Šã€ãƒ‘ã‚±ãƒƒãƒˆã‚ãƒ£ãƒ—ãƒãƒ£ã‚„ãƒ‘ã‚±ãƒƒãƒˆãƒ•ã‚£ãƒ«ã‚¿ãƒªãƒ³ã‚°ã‚’æ‹…ã†ã ã‘ã®ã€Linuxã®æ–°ã—ã„ã‚µãƒ–ã‚·ã‚¹ãƒ†ãƒ ã§ã‚ã‚ã†ã¨èªè˜ã—ã¦ã„ãŸã€‚ã—ã‹ã—ã€å®Ÿéš›ã«ã¯ãã†ã§ã¯ãªã‹ã£ãŸã€‚ ã‚·ã‚¹ãƒ†ãƒ æ€§èƒ½ã®åˆ†æžã®ãŸã‚ã®æ–¹æ³•è«–ã‚’ã¾ã¨ã‚ãŸæ›¸ç±Systems Performance 1 ã®è‘—è€…ã§æœ‰åãªBrendan GreggãŒã€Linuxã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚µãƒ–ã‚·ã‚¹ãƒ†ãƒ ã¨ã¯ç‰¹ã«é–¢ä¿‚ãªã„æ–‡è„ˆã§ã€å¤å…¸çš„ãªã‚·ã‚¹ãƒ†ãƒ æ€§èƒ½è¨ˆæ¸¬ãƒ„ãƒ¼ãƒ«ã§ã¯è¨ˆæ¸¬ã§ããªã„ã“ã¨ã‚’è¨ˆæ¸¬ã™ã‚‹ãƒ„ãƒ¼ãƒ«ã‚’ä½œã£ã¦ã„ãŸã€‚ãã®è¨ˆæ¸¬ãƒ„ãƒ¼ãƒ«ãŒeBPFã¨ã„ã†æŠ€è¡“ã«ã‚ˆã£ã¦å®Ÿè£…ã•ã‚Œã¦ã„ã‚‹ã“ã¨ã‚’çŸ¥ã£ãŸã¨ãã«ã€eBPFã«èˆˆå‘³ã‚’ã‚‚ã£ãŸã®ã ã£ãŸã€‚ã¾ãŸã€eBPFã¯ã€ã‚·ã‚¹ãƒ†ãƒ æ€§èƒ½ã‚’èª¿ã¹ã‚‹ç”¨é€”ä»¥å¤–ã«XDPï¼ˆeXpress Data Pathï¼‰ã¨å‘¼ã°ã‚Œã‚‹ãƒ—
jitsu102 2024/12/31
linux

ebpf
ãƒªãƒ³ã‚¯
ãƒˆãƒ¼ãƒãƒ«ã‚ºæ°ãŒèªžã‚‹ã€ŒLinuxã€ãƒ¡ãƒ³ãƒ†ãƒŠãƒ¼ã®é«˜é½¢åŒ–ã¨å¾Œç¶™è€…å•é¡Œ--20å‘¨å¹´ã®ã€ŒRTLinuxã€ã«ã‚‚è¨€åŠ
Steven J. Vaughan-NicholsÂ ï¼ˆSpecial to ZDNET.comï¼‰Â ç¿»è¨³æ ¡æ£ï¼šÂ å·æ‘ã‚¤ãƒ³ã‚¿ãƒ¼ãƒŠã‚·ãƒ§ãƒŠãƒ« 2024-09-20 07:00 ã‚¦ã‚£ãƒ¼ãƒ³ç™º--ã€ŒLinuxã€ã®ç”Ÿã¿ã®è¦ªã§ã‚ã‚‹Linus Torvaldsæ°ã¯ã€The Linux Foundationã®ã€ŒOpen Source Summit Europeã€ã®åŸºèª¿è¬›æ¼”ã§ã€ã‚«ãƒ¼ãƒãƒ«é–‹ç™ºã‚„ã€ŒRustã€ã®çµ±åˆã€ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ã®æœªæ¥ã«ã¤ã„ã¦ã€è‡ªèº«ã®è€ƒãˆã‚’çŽ‡ç›´ã«èªžã£ãŸã€‚Torvaldsæ°ã®å‹äººã§Verizonã®ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹ãƒ—ãƒã‚°ãƒ©ãƒ ã‚ªãƒ•ã‚£ã‚¹ã®è²¬ä»»è€…ã‚’å‹™ã‚ã‚‹Dirk Hohndelæ°ãŒã€Linuxã‚¨ã‚³ã‚·ã‚¹ãƒ†ãƒ ã«é–¢ã™ã‚‹åŸºèª¿è¬›æ¼”ã®å¸ä¼šã‚’æ‹…å½“ã—ãŸã€‚ Torvaldsæ°ã¯ã€å…ˆé ƒå…¬é–‹ã•ã‚ŒãŸã€Œâ Linux 6.11ã€ã‚«ãƒ¼ãƒãƒ«ãªã©ã®ãƒªãƒªãƒ¼ã‚¹ãŒé¢ç™½ã¿ã«æ¬ ã‘ã‚‹ã®ã¯æ„å›³çš„ã ã€ã¨å¼·èª¿ã—ãŸã€‚ã€Œç´„15å¹´é–“ã«ã‚ãŸã‚Šã€éžå¸¸ã«è¦å‰‡æ£ã—ã„ãƒªãƒªãƒ¼ã‚¹ã‚’è¡Œ
jitsu102 2024/09/23
linus torvalds

linux
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Linux Lite Easy to Use Free Linux Operating System
Linux Lite is a 'gateway operating system'. Your first simple, fast and free stop in the world of Linux.
jitsu102 2024/07/21
linux
ãƒªãƒ³ã‚¯
Ubuntu 24.04 LTS (Noble Numbat) Release Notes
Noble Numbat Release Notes Table of Contents Introduction New features in 24.04 LTS Known Issues Official flavours More information Introduction These release notes for Ubuntu 24.04 LTS (Noble Numbat) provide an overview of the release and document the known issues with Ubuntu and its flavours. For details of the changes applied since 24.04, please see the 24.04.1 change summary. Support lifespan
jitsu102 2024/04/28
24.04LTS

linux

ubuntu
ãƒªãƒ³ã‚¯
ã€Ubuntuæ—¥å’Œã€‘ ã€ç¬¬48å›žã€‘è„±ESXiï¼ŸUbuntuã¨Cockpitã§ä»®æƒ³åŒ–ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ ã‚’æ§‹ç¯‰ã—ã‚ˆã†
jitsu102 2024/03/17
Cockpit is a web-based graphical interface for servers https://cockpit-project.org/

ubuntu

linux
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perf, ftraceã®ã—ãã¿ - ç¡åˆ†ä¸è¶³
Linuxã®ãƒˆãƒ¬ãƒ¼ã‚µãƒ¼ã§ã‚ã‚‹perfã‚„ftraceã®ãƒ„ãƒ¼ãƒ«ã®ä½¿ã„æ–¹ã«é–¢ã™ã‚‹æƒ…å ±ã¯çµæ§‹ã‚ã‚Šã¾ã™ãŒï¼Œæ§‹é€ ã«é–¢ã—ã¦ã¯ã‚ã¾ã‚Šè¦‹ã¤ã‘ã‚‰ã‚Œãªã‹ã£ãŸãŸã‚ï¼Œã“ã“ã«ç°¡å˜ã«èª¿ã¹ãŸã“ã¨ã‚’ã¾ã¨ã‚ã‚ˆã†ã‹ã¨æ€ã„ã¾ã™ï¼Žï¼ˆãƒ„ãƒ¼ãƒ«ã®ä½¿ã„æ–¹ã®èª¬æ˜Žã¯ã‚ã‚“ã¾ã‚Šã—ãªã„ã§ã™ï¼Žï¼‰ ã“ã®æ–‡ç« ã¯Linux 4.15ã®ã‚½ãƒ¼ã‚¹ã«åŸºã¥ã„ã¦ã„ã¾ã™ï¼Ž å…¨ä½“åƒ ftrace function trace tracepoint (static event) kprobe (dynamic event) ãã®ä»–ã®tracer trace-cmd perf PERF_TYPE_HARDWARE, HW_CACHE, RAW PERF_TYPE_SOFTWARE PERF_TYPE_TRACEPOINT PERF_TYPE_BREAKPOINT USDT (SDT Event) perf-tools perf ftrace straceã¨ã®æ¯”è¼ƒ ãã®ä»– pe
jitsu102 2024/03/17
linux
ãƒªãƒ³ã‚¯
tc ã‚³ãƒžãƒ³ãƒ‰ã§ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯é…å»¶ã‚„ãƒ‘ã‚±ãƒƒãƒˆãƒã‚¹ã‚’ç–‘ä¼¼çš„ã«ç™ºç”Ÿã•ã›ã‚‹ãƒ¡ãƒ¢ - ã‚ˆã†ã¸ã„ã®æ—¥ã€…ç²¾é€²XP
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jitsu102 2022/10/29
linux

network
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å°‚é–€å®¶ã«èžãã€ã‚µãƒ¼ãƒOSã®æ–°ãŸãªé¸æŠžè‚¢ã¨ã—ã¦æµ®ä¸Šã—ã¦ããŸUbuntuã¨ã¯
å°‚é–€å®¶ã«èžãã€ã‚µãƒ¼ãƒOSã®æ–°ãŸãªé¸æŠžè‚¢ã¨ã—ã¦æµ®ä¸Šã—ã¦ããŸUbuntuã¨ã¯ï¼šã€Œèª°ã§ã‚‚ä½¿ãˆã‚‹å„ªã—ã„OSã€ã®å®ŸåŠ›ã¨ã¯ Linuxã®é¸æŠžè‚¢ã¨ã—ã¦åå‰ãŒæŒ™ãŒã‚‹OSã®ä¸€ã¤ãŒUbuntuã ã€‚æ¥å‹™ã§Ubuntuã‚’æ´»ç”¨ã—ã¦ã„ã‚‹æ—¥æœ¬ä»®æƒ³åŒ–æŠ€è¡“ã®2äººã«ã€Ubuntuã®æ´å²ã‚„ç‰¹å¾´ã€ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ãƒ¼ã®é‹ç”¨ä½“åˆ¶ãªã©ã‚’èžã„ãŸã€‚ ä¼æ¥ã®æƒ…å ±ã‚·ã‚¹ãƒ†ãƒ ã‚’æ§‹ç¯‰ã™ã‚‹ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã«ã¨ã£ã¦ã€OSã®é¸æŠžã¯é‡è¦ãªå•é¡Œã ã€‚ä¸€èˆ¬çš„ã«ã¯Linuxãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã‚’é¸æŠžã™ã‚‹ã“ã¨ãŒå¤šã„ãŒã€æœ‰å„Ÿã€ç„¡å„Ÿã®é•ã„ã‚’å«ã‚ã€æ•°å¤šã„ãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã®ä¸ã‹ã‚‰ä¸€ã¤ã‚’é¸æŠžã™ã‚‹ã“ã¨ã«ãªã‚‹ã€‚ å•†ç”¨åˆ©ç”¨ã«é©ã—ãŸLinuxãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã«ã¯ã€ã™ãã«åˆ©ç”¨ã§ãã‚‹ã¨ã„ã†ãƒ¡ãƒªãƒƒãƒˆãŒã‚ã‚‹ã€‚é–‹ç™ºãƒŽã‚¦ãƒã‚¦ã¯ãƒãƒƒãƒˆä¸Šã®ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ãƒ¼ã§å…±æœ‰ã•ã‚Œã¦ãŠã‚Šã€æœ‰å„Ÿã‚µãƒãƒ¼ãƒˆã‚‚å—ã‘ã‚‰ã‚Œã‚‹ã€‚ ãã®ä¸€æ–¹ã§ã€å•†ç”¨åˆ©ç”¨ã«è€ãˆã‚‹é•·æœŸã®å®‰å®šæ€§ã‚’ä¸å®‰è¦–ã™ã‚‹æƒ…ã‚·ã‚¹æ‹…å½“è€…ã‚‚ã€‚ãã®ä¸ã§æ³¨ç›®ã•ã‚Œã¦ã„ã‚‹Linu
jitsu102 2021/07/11
linux

ubuntu
ãƒªãƒ³ã‚¯
Linuxç”Ÿã¿ã®è¦ªãƒªãƒ¼ãƒŠã‚¹ãƒ»ãƒˆãƒ¼ãƒãƒ«ã‚ºãŒåãƒ¯ã‚¯ãƒãƒ³æ´¾ã®ä¸»å¼µã«æ¿€æ€’ã€ã€Œäºˆé˜²æŽ¥ç¨®ã‚’å—ã‘ã‚ã€‚åãƒ¯ã‚¯ãƒãƒ³ã®å˜˜ã‚’ä¿¡ã˜ã‚‹ã®ã¯æ¢ã‚ã‚ã€
by Nguyen Hung Vu ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹OSãƒ»Linuxã®é–‹ç™ºè€…ã¨ã—ã¦çŸ¥ã‚‰ã‚Œã‚‹ãƒªãƒ¼ãƒŠã‚¹ãƒ»ãƒˆãƒ¼ãƒãƒ«ã‚ºæ°ãŒåãƒ¯ã‚¯ãƒãƒ³æ´¾ã®æŠ•ç¨¿ã«å¯¾ã—ã€ã€Œäºˆé˜²æŽ¥ç¨®ã‚’å—ã‘ã‚ã€‚åãƒ¯ã‚¯ãƒãƒ³ã®å˜˜ã‚’ä¿¡ã˜ã‚‹ã®ã¯æ¢ã‚ã‚ã€ã¨ã„ã†è¿”ä¿¡ã‚’æŠ•ç¨¿ã—ã¾ã—ãŸã€‚åŒæ°ã¯ã€Œãƒ¯ã‚¯ãƒãƒ³ã¯æ–‡å—é€šã‚Šä½•åƒä¸‡äººã‚‚ã®äººã€…ã®å‘½ã‚’æ•‘ã£ã¦ããŸã€ã€Œã©ã“ã‹ã‚‰é–“é•ã£ãŸæƒ…å ±ã‚’å¾—ãŸã¨ã—ã¦ã‚‚ã€Linuxã‚«ãƒ¼ãƒãƒ«ãƒ¡ãƒ¼ãƒªãƒ³ã‚°ãƒªã‚¹ãƒˆä¸Šã§ã¯ã‚ãªãŸã®ã°ã‹ã’ãŸæˆ¯è¨€ã‚’ç§ãŒè¦‹é€ƒã™ã“ã¨ã¯ãªã„ã€ã¨æ€’ã‚Šã‚’ã‚ã‚‰ã‚ã«ã—ã¦ã„ã¾ã™ã€‚ LKML: Linus Torvalds: Re: Maintainers / Kernel Summit 2021 planning kick-off https://lkml.org/lkml/2021/6/10/957 ãƒˆãƒ¼ãƒãƒ«ã‚ºæ°ãŒæ¿€æ€’ã—ãŸã®ã¯ã€Linuxã‚«ãƒ¼ãƒãƒ«ãƒ¡ãƒ¼ãƒªãƒ³ã‚°ãƒªã‚¹ãƒˆã«æŠ•ã˜ã‚‰ã‚ŒãŸã€ã€Œéºä¼åé…åˆ—ãŒè‡ªç„¶ãªã‚‚ã®ã¨ã¯å…¨ãç•°ãªã‚‹ã‚¹ãƒ‘ã‚¤ã‚¯ã‚¿ãƒ³ãƒ‘ã‚¯è³ªã‚’ç”Ÿã¿å‡ºã™æ–°
jitsu102 2021/06/13
linux

kernel

linus torvalds
ãƒªãƒ³ã‚¯
x86ç‰ˆLinuxã‚«ãƒ¼ãƒãƒ«ã€ç„¡æ¡ä»¶ã«RAMã®å…ˆé 1MBã‚’äºˆç´„ã™ã‚‹ã“ã¨ã« | ã‚¹ãƒ©ãƒ‰ Linux
x86ç‰ˆ(AMD64å«ã‚€)ã®Linuxã§ã€ç„¡æ¡ä»¶ã«RAMã®å…ˆé 1MBã‚’äºˆç´„ã™ã‚‹ã“ã¨ã«ãªã£ãŸã‚ˆã†ã (Phoronixã®è¨˜äº‹ã€ LKLMã‚¢ãƒ¼ã‚«ã‚¤ãƒ–)ã€‚ æ—¢ã«x86ç‰ˆã®Linuxã§ã¯Sandy Brdigeã®çµ±åˆã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ã®ãƒã‚°å¯¾ç–ã¨ã—ã¦è©²å½“ç’°å¢ƒã§ã¯å…ˆé 1MBã‚’äºˆç´„ã™ã‚‹ä»•çµ„ã¿ã«ãªã£ã¦ã„ã‚‹ãŒã€æœ€è¿‘Ryzenç’°å¢ƒã§Linux 5.13 RCãŒèµ·å‹•ã—ãªã„ã¨ã„ã†å ±å‘ŠãŒã‚ã‚Šã€äºˆç´„ã‚µã‚¤ã‚ºã®é•ã„ã«ã‚ˆã‚‹ã‚‚ã®ã ã¨åˆ¤æ˜Žã—ã¦ã„ã‚‹ã€‚ãã®ãŸã‚ã€ç´°ã‹ãå¯¾å¿œã™ã‚‹ã‚ˆã‚Šã‚‚ç„¡æ¡ä»¶ã«å…ˆé 1MBå…¨ä½“ã‚’äºˆç´„ã™ã‚‹æ–¹ãŒã‚·ãƒ³ãƒ—ãƒ«ã ã€‚ ã“ã‚Œã«å¯¾ã—Linus Torvaldsæ°ã¯ã—ã¶ã—ã¶ãƒ—ãƒ«ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚’å—ã‘ä»˜ã‘ãŸã€‚Torvaldsæ°ã¯1MBãŒä½¿ãˆãªããªã£ã¦ã‚‚GBå˜ä½ã§RAMã‚’æè¼‰ã™ã‚‹ç¾åœ¨ã®PCã«å½±éŸ¿ã¯ãªãã€è‡ªèº«ã‚‚æ°—ã«ã—ãªã„ã¨ã—ã¤ã¤ã€å°è¦æ¨¡ãªæ§‹æˆã‚’ã—ãŸã„äººã¯x86ã‚’ã‚ãã‚‰ã‚ã‚‹ã—ã‹ãªã„ã®ã‹ã€ãƒ¬ã‚¬ã‚·ãƒ¼DMAãƒªã‚½ãƒ¼ã‚¹ã‚’æ¶ˆè²»ã™ã‚‹ã“ã¨ã«ãªã‚‹ãªã©ã¨è¿°ã¹ã€ã€Œ
jitsu102 2021/06/12
linux

kernel

linus torvalds
ãƒªãƒ³ã‚¯
GitHub - lima-vm/lima: Linux virtual machines, with a focus on running containers
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jitsu102 2021/05/15
mac

macos

linux

container
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RotaJakiro: A long live secret backdoor with 0 VT detection
Overview On March 25, 2021, 360 NETLAB's BotMon system flagged a suspiciousELF file (MD5=64f6cfe44ba08b0babdd3904233c4857) with 0 VT detection, the sample communicates with 4 domains on TCP 443 (HTTPS), but the traffic is not of TLS/SSL. A close look at the sample revealed it to be a backdoor targeting Linux X64 systems, a family that has been around for at least 3 years. We named it RotaJakiro ba
jitsu102 2021/05/03
linux

security
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ã“ã®è¨˜äº‹ã¯TSG Advent Calendar 2016 - Adventarã®25æ—¥ç›®ã¨ã—ã¦æ›¸ã‹ã‚Œã¾ã—ãŸã€‚ è‡ªåˆ†æ—¢ã«OBã§ã™ã—ã€25æ—¥ç›®ã¨ã‚‚ãªã‚‹ã¨ã€Œä½•ã‹å£®å¤§ãªãƒã‚¿ã‚’â€¦ã€ã¨ã‹è€ƒãˆã‚ããã¦ã„ãŸã®ã§ã™ãŒã€ç¾å®Ÿçš„ãªãƒã‚¿ã‚’æ€ã„ã¤ã‘ãªã‹ã£ãŸã®ã§æœ€è¿‘ã‚„ã£ã¦ãŸã“ã¨ã§ã‚‚æ›¸ãã¾ã™ã€‚ å…ˆæ—¥Linuxã®NICãƒ‰ãƒ©ã‚¤ãƒã®é–‹ç™ºã«ã¤ã„ã¦ã®ã‚¨ãƒ³ãƒˆãƒªã‚’æ›¸ã„ã¦ã„ãŸã®ã§ã™ãŒã€ãã®ä¸Žå¤ªè©±ã§ã‚‚ã—ã‚ˆã†ã‹ãªã¨æ€ã„ã¾ã™ã€‚ lv4.hateblo.jp sk_buffæ§‹é€ ä½“ Linuxã®ã‚«ãƒ¼ãƒãƒ«å†…ã§ã¯ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‘ã‚±ãƒƒãƒˆã¯sk_buffæ§‹é€ ä½“ã«ã‚ˆã£ã¦æ‰±ã‚ã‚Œã¦ã„ã¾ã™ã€‚ ï¼ˆã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ â†’ Linux/include/linux/skbuff.h - Linux Cross Reference - Free Electronsï¼‰ èª¬æ˜Žã¨ã—ã¦ã¯ How SKBs work ãŒéžå¸¸ã«ãƒŠã‚¤ã‚¹ã ã¨æ€ã„ã¾ã™ã€‚ è¦ç‚¹ã¨ã—ã¦ã¯ head data t
jitsu102 2021/05/03
linux

network
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An Interview With Linus Torvalds: Linux and Git - Part 1 30 Years Of Linux
Jeremy founded Tag1 Consulting in 2007. He has been a contributing core Drupal developer since 2002, and helped establish Drupal as a successful CMS through the early popularity of his personal blog, KernelTrap.org. Over the years, he authored and maintained the core statistics module and throttle module, as well as the pager logic and the initial Drupal 5 installer. He continues to contribute to
jitsu102 2021/05/01
linus torvalds

linux

git

interview
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Buffer overflow in command line unescaping
When sudo runs a command in shell mode, either via the -s or -i command line option, it escapes special characters in the commandâ€™s arguments with a backslash. The sudoers policy plugin will then remove the escape characters from the arguments before evaluating the sudoers policy (which doesnâ€™t expect the escape characters) if the command is being run in shell mode. A bug in the code that removes
jitsu102 2021/02/07
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3156 / https://blog.qualys.com/vulnerabilities-research/2021/01/26/cve-2021-3156-heap-based-buffer-overflow-in-sudo-baron-samedit

linux

security
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Linuxã‚³ãƒžãƒ³ãƒ‰ã§ãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã‚’èª¿ã¹ã‚‹
ä¿ºã®è©±ã‚’èžã‘ï¼ï¼LTå¤§ä¼š #8ã§ãƒˆãƒ¼ã‚¯ã—ãŸè³‡æ–™ã§ã™
jitsu102 2021/01/24
linux

performance

profiler
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2021å¹´1æœˆ13æ—¥ã€€ãƒã‚¤ãƒ‘ãƒ¼ã‚¹ã‚±ãƒ¼ãƒ©ã«ç‰¹åŒ–ã—ãŸCentOSã‚ªãƒ«ã‚¿ãƒŠãƒ†ã‚£ãƒ–ã‚’ï¼â€•Facebookã‚„Twitterãªã©ã€ŒCentOS Hyperscalers SIGã€ã‚’è¨ç«‹ã¸ | gihyo.jp
Linux Daily Topics 2021å¹´1æœˆ13æ—¥ãƒã‚¤ãƒ‘ãƒ¼ã‚¹ã‚±ãƒ¼ãƒ©ã«ç‰¹åŒ–ã—ãŸCentOSã‚ªãƒ«ã‚¿ãƒŠãƒ†ã‚£ãƒ–ã‚’ï¼â€•Facebookã‚„Twitterãªã©ã€ŒCentOS Hyperscalers SIGã€ã‚’è¨ç«‹ã¸ 2021å¹´ã‚’ã‚‚ã£ã¦äº‹å®Ÿä¸Šã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆçµ‚äº†ãŒç™ºè¡¨ã•ã‚ŒãŸCentOSã ãŒã€CentOSã‚’ã‚µãƒ¼ãƒ“ã‚¹ã®åŸºç›¤ã¨ã—ã¦åˆ©ç”¨ã—ã¦ããŸãƒ¦ãƒ¼ã‚¶ã€ã¨ãã«"ãƒã‚¤ãƒ‘ãƒ¼ã‚¹ã‚±ãƒ¼ãƒ©ï¼ˆhyperscalersï¼‰"ã¨å‘¼ã°ã‚Œã‚‹å¤§è¦æ¨¡ã‚µãƒ¼ãƒ“ã‚¹äº‹æ¥è€…ã®ä¸ã«ã¯ã€ä»Šå¾Œã®ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ æˆ¦ç•¥ã®è»¢æ›ã‚’ä½™å„€ãªãã•ã‚Œã¦ã„ã‚‹ã¨ã“ã‚ã‚‚å°‘ãªããªã„ã€‚ãã†ã—ãŸäº‹æƒ…ã‚’åæ˜ ã—ãŸå‹•ãã®ã²ã¨ã¤ã¨ã—ã¦ã€Facebookã‚„Twitterã€Verizonã¨ã„ã£ãŸãƒã‚¤ãƒ‘ãƒ¼ã‚¹ã‚±ãƒ¼ãƒ©ã®æœ‰å¿—ãŒCenOSãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã«å¯¾ã—ã€å¤§è¦æ¨¡ã‚¤ãƒ³ãƒ•ãƒ©å‘ã‘ã®CentOS Streamã«ãƒ•ã‚©ãƒ¼ã‚«ã‚¹ã™ã‚‹ã‚°ãƒ«ãƒ¼ãƒ—ã€ŒCentOS Hyperscalers SIGï¼ˆspecial inte
jitsu102 2021/01/24
CentOS Streamãªå‹•ã

redhat

rhel

centos

linux
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New Year, new Red Hat Enterprise Linux programs: Easier ways to access RHEL
This post highlights new, simplified and low-/no-cost options for deploying RHEL. These are the first of many new programs. To immediately go to the program that interests you: No-cost RHEL for small production workloads No-cost RHEL for customer development teams On December 8, 2020, Red Hat announced a major change to the enterprise Linux ecosystem: Red Hat will begin shifting our work from Cent
jitsu102 2021/01/23
redhat

rhel

centos

fedora

linux
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Asahi Linux
Linux on Apple SiliconAsahi Linux aims to bring you a polished LinuxÂ® experience on Apple Silicon Macs. Install from macOS curl https://alx.sh | sh
jitsu102 2021/01/17
apple

mac

macos

linux
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