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iptables - FreeStyleWiki
ã€Œiptablesã€ã¯ã€IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚„ãƒãƒ¼ãƒˆç•ªå·ã«ã‚ˆã‚Šã€é€šéŽã™ã‚‹ãƒ‘ã‚±ãƒƒãƒˆã®ãƒ•ã‚£ãƒ«ã‚¿ãƒªãƒ³ã‚°ã‚’è¡Œã†ãƒ—ãƒã‚»ã‚¹ã§ã™ã€‚ã“ã‚Œã§ä½•ãŒå®Ÿç¾ã§ãã‚‹ã‹ã¨ã„ã†ã¨ã€Œãƒ•ã‚¡ã‚¤ã‚¢ã‚¦ã‚©ãƒ¼ãƒ«ã€ãŒå®Ÿç¾ã§ãã¾ã™ã€‚ï¼ˆï¼‘å°ã®å°‚ç”¨ã‚µãƒ¼ãƒã§ã‚‚ã€ã‚‚ã¡ã‚ã‚“ã“ã®ãƒ•ã‚£ãƒ«ã‚¿ãƒªãƒ³ã‚°ã¯æŒ‡å®šå¯èƒ½ã§ã™ã€‚æ˜¨ä»Šã¯ã€é˜²å¾¡å‡¦ç†ã‚’è¡Œã†ã®ã¯å½“ãŸã‚Šå‰ã«ãªã£ã¦ã¾ã™ã®ã§ã€ãƒ•ã‚£ãƒ«ã‚¿ãƒªãƒ³ã‚°å‡¦ç†ã¯å¿…è¦ä¸å¯æ¬ ãªã‚‚ã®ã«ãªã£ã¦ã„ã¾ã™ï¼‰ ã“ã‚Œã«ã‚ˆã‚Šã€ä¸æ£ãªã‚¢ã‚¯ã‚»ã‚¹ãƒ»ä½¿ã„ãŸããªã„é€šè·¯ï¼ˆãƒãƒ¼ãƒˆï¼‰ã¯ã‚·ãƒ£ãƒƒãƒˆã‚¢ã‚¦ãƒˆã—ã¦ã—ã¾ãŠã†ã€ã¨ã„ã†é‚èƒ†ã§ã™ã€‚ï¼ˆãŸã ã—ã€å®Œå…¨ã«å®‰å…¨ã¨ã„ã†ã‚ã‘ã§ã¯ãªã„ã¨ã„ã†ç‚¹ã«ã¯æ³¨æ„ã—ã¦ãã ã•ã„ï¼‰ãƒ‘ã‚±ãƒƒãƒˆã®å…¥ã‚‹å´ã¨å‡ºã‚‹å´ãŒã‚ã‚Šã€ã“ã‚Œã‚‰ã¯åŒæ–¹ã§ãƒ•ã‚£ãƒ«ã‚¿ãƒªãƒ³ã‚°ã®ã€Œãƒ«ãƒ¼ãƒ«ã€ã‚’è¨å®šã™ã‚‹ã“ã¨ãŒå¯èƒ½ã§ã™ã€‚ ã¾ãŸã€ãƒ«ãƒ¼ã‚¿ã§ã®ä½¿ç”¨æ™‚ãªã©ã§ã®IPã®å¤‰æ›æ©Ÿèƒ½ï¼ˆNATï¼‰ã‚‚å‚™ã‚ã£ã¦ã„ã¾ã™ã€‚ ãƒ•ã‚£ãƒ«ã‚¿ãƒªãƒ³ã‚°ã®è€ƒãˆæ–¹ å®‰å…¨ã«è¡Œã†ã«ã¯ã€Œã™ã¹ã¦ã‚’æ‹’ã‚“ã§ã€ç‰¹å®šã®ã‚’è¨±ã™ã€ã¨ã„ã†æ€§æ‚ªèª¬ï¼ˆï¼Ÿï¼‰ã§è¨å®šã—ã¾ã™ã€‚ç‰¹ã«ã€ãƒªãƒ¢
uokada 2019/06/01
iptables
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iptablesã‚’ç½®ãæ›ãˆã‚‹BPFã‚’ã‚³ãƒ³ãƒ†ãƒŠãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã«ä½¿ã†Cilium | Think ITï¼ˆã‚·ãƒ³ã‚¯ã‚¤ãƒƒãƒˆï¼‰
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uokada 2019/01/13
iptables

kernel

network
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Linuxã§iptablesã‚’ä½¿ã£ã¦DSRã™ã‚‹ - ï¼ˆã²ï¼‰ãƒ¡ãƒ¢
1. ãƒªã‚¢ãƒ«ã‚µãƒ¼ãƒå´ã«ã‚‚ã‚°ãƒãƒ¼ãƒãƒ«IPã‚’æŒ¯ã‚‹å¿…è¦ãŒã‚ã‚‹(IPãŒå°‘ãªã„ã¨ã“ã‚ã¯çµæ§‹ãã¤ã„ã‹ã‚‚). ãƒªã‚¢ãƒ«ã‚µãƒ¼ãƒã§ã¯ã€VIPã‚’ãƒ«ãƒ¼ãƒ—ãƒãƒƒã‚¯ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã«IP aliasã™ã‚Œã°ã„ã„ã®ã§ã€ãƒªã‚¢ãƒ«ã‚µãƒ¼ãƒã®æ•°ã ã‘ã‚°ãƒãƒ¼ãƒãƒ«IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’æ¶ˆè²»ã™ã‚‹ã£ã¦ã“ã¨ã¯ãªã„ã‚ˆã†ãªã€‚ï¼ˆèª¤èªã—ã¦ã‚‹ã‹ã‚‚ ãŸã ã€ã“ã®æ–¹å¼ã ã¨ã€VIPã®æ•°ã ã‘ã„ã¡ã„ã¡ãƒªã‚¢ãƒ«ã‚µãƒ¼ãƒã«IP aliasã—ã¦å›žã‚‰ãªã„ã¨ã„ã‘ãªã„ã®ã§ã€ã‚ã‚Šã¨å¤§è¦æ¨¡ï¼ˆVIPãŒãŸãã•ã‚“ã‚ã‚‹ or ãƒªã‚¢ãƒ«ã‚µãƒ¼ãƒãŒãŸãã•ã‚“ã‚ã‚‹ï¼‰ã ã¨ã‚ã‚“ã©ãã•ã„ã“ã¨ã“ã®ä¸Šãªã„ã€‚ ã§ã€ãƒªã‚¢ãƒ«ã‚µãƒ¼ãƒã§ã“ã‚“ãªiptablesã®ãƒ«ãƒ¼ãƒ«ã‚’è¨å®šã™ã‚Œã°ã€IP aliasã—ãªã„ã§DSRã§ããã†ã¨ã„ã†ã®ãŒä¸»é¡Œã€‚ VIP=10.1.1.0/24 iptables -t nat -A PREROUTING -d $VIP -j REDIRECTå¤šåˆ†ã€ã“ã‚Œã§ã„ã‘ã‚‹ã¨æ€ã†ã‚“ã§ã™ã‘ã©ã¡ã¨è‡ªä¿¡ãªã—ã€‚æ¤œè¨¼ and è©³ã—ã„èª¬æ˜Ž
uokada 2018/12/19
iptables

network

dsr
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ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯éšœå®³ã‚’æ”¯é…ã—ãŸã„è©±
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uokada 2018/09/10
iptables

TCP
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iptablesã®è¨å®šã§ã‚µãƒ¼ãƒãƒ¼æ”»æ’ƒå¯¾ç–ã¨æµ·å¤–ã‹ã‚‰ã®ã‚¢ã‚¯ã‚»ã‚¹ã‚’åˆ¶é™ - falsandtruã®ãƒ¡ãƒ¢å¸³
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uokada 2017/07/12
iptables

firewall
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heartbleedã‚’iptablesã§æ¢ã‚ã‚‹ã“ã¨ã«ã¤ã„ã¦ - yasulib memo
å‰æ›¸ã OpenSSLã®è„†å¼±æ€§ï¼ˆCVE-2014-0160ï¼‰ãŒå…¬é–‹ã•ã‚Œã¾ã—ãŸã€‚ è©³ç´°ã¯piyokangoã•ã‚“ã®ç´ æ™´ã‚‰ã—ã„ã¾ã¨ã‚ã‚’å‚ç…§ã—ã¦ãã ã•ã„ã€‚ OpenSSLã®è„†å¼±æ€§ï¼ˆCVE-2014-0160ï¼‰é–¢é€£ã®æƒ…å ±ã‚’ã¾ã¨ã‚ã¦ã¿ãŸ - piyolog ã‚¨ãƒ•ã‚»ã‚ãƒ¥ã‚¢ãƒ–ãƒã‚°ã«ã¦ã€ãƒˆãƒ¼ãƒžãƒ„ã®å²©äº•ã•ã‚“ãŒæ›¸ã„ãŸèˆˆå‘³æ·±ã„è¨˜äº‹ãŒã‚ã‚Šã¾ã—ãŸã€‚ ã‚¨ãƒ•ã‚»ã‚ãƒ¥ã‚¢ãƒ–ãƒã‚° : Openssl Heartbleed æ”»æ’ƒã®æ¤œçŸ¥ã«ã¤ã„ã¦ ï¼ƒæ ¹æœ¬çš„ãªå¯¾ç–ã§ã¯ãªãã€ã‚ãã¾ã§æ”»æ’ƒæ¤œçŸ¥ã¨ã„ã†æ„å‘³ã§ã€‚ iptables log rules iptables -t filter -A INPUT -p tcp --dport 443 -m u32 --u32 "52=0x18030000:0x1803FFFF" -j LOG --log-prefix "BLOCKED: HEARTBEAT" iptables block rules i
uokada 2014/04/14
iptables

openssl

security

heartbleed
ãƒªãƒ³ã‚¯
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ä¸‹è¨˜ã®ã€Œæ—§FC2ç„¡æ–™ãƒ›ãƒ¼ãƒ ãƒšãƒ¼ã‚¸ã‚¹ãƒšãƒ¼ã‚¹ã€ã¯2025å¹´06æœˆ30æ—¥ã‚’ã‚‚ã¡ã¾ã—ã¦ã‚µãƒ¼ãƒ“ã‚¹ã‚’çµ‚äº†ã„ãŸã—ã¾ã—ãŸã€‚ FC2WEB http://www.fc2web.com GOOSIDE http://www.gooside.com k-free.net http://www.k-free.net Easter http://www.easter.ne.jp 55 STREET http://www.55street.net ZERO_CITY.com http://www.zero-city.com OJIJI.NET http://www.ojiji.net K-Server http://www.k-server.org Zero-yen.com http://www.zero-yen.com KTNET http://www.kt.fc2.com Finito http://www.fi
uokada 2013/11/29
linux

security

network

iptables

firewall
ãƒªãƒ³ã‚¯
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uokada 2013/09/26
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Linux

performance

network

tuning

iptables
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uokada 2012/08/23
iptables

protocol

linux

security
ãƒªãƒ³ã‚¯
Iptablesãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ« 1.2.2
Japanese translation v.1.0.1 Copyright Â© 2001-2006 Oskar Andreasson Copyright Â© 2005-2008 Tatsuya Nonogaki ã“ã®æ–‡æ›¸ã‚’ã€ãƒ•ãƒªãƒ¼ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢è²¡å›£ç™ºè¡Œã® GNU ãƒ•ãƒªãƒ¼æ–‡æ›¸åˆ©ç”¨è¨±è«¾å¥‘ç´„æ›¸ãƒãƒ¼ã‚¸ãƒ§ãƒ³1.1 ãŒå®šã‚ã‚‹æ¡ä»¶ã®ä¸‹ã§è¤‡è£½ã€é ’å¸ƒã€ã‚ã‚‹ã„ã¯æ”¹å¤‰ã™ã‚‹ã“ã¨ã‚’è¨±å¯ã™ã‚‹ã€‚åºæ–‡ã¨ãã®å‰¯ç« ã¯å¤‰æ›´ä¸å¯éƒ¨åˆ†ã§ã‚ã‚Šã€ã€ŒOriginal Author: Oskar Andreassonã€ã¯è¡¨ã‚«ãƒãƒ¼ãƒ†ã‚ã‚¹ãƒˆã€è£ã‚«ãƒãƒ¼ãƒ†ã‚ã‚¹ãƒˆã¯æŒ‡å®šã—ãªã„ã€‚ã“ã®åˆ©ç”¨è¨±è«¾å¥‘ç´„æ›¸ã®è¤‡è£½ç‰©ã¯ã€ŒGNU ãƒ•ãƒªãƒ¼æ–‡æ›¸åˆ©ç”¨è¨±è«¾å¥‘ç´„æ›¸ã€ã¨ã„ã†ç« ã«å«ã¾ã‚Œã¦ã„ã‚‹ã€‚ ã“ã®ãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ«ã«å«ã¾ã‚Œã‚‹ã™ã¹ã¦ã®ã‚¹ã‚¯ãƒªãƒ—ãƒˆã¯ãƒ•ãƒªãƒ¼ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã§ã™ã€‚ã‚ãªãŸã¯ã“ã‚Œã‚’ã€ãƒ•ãƒªãƒ¼ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢è²¡å›£ã«ã‚ˆã£ã¦ç™ºè¡Œã•ã‚ŒãŸ GNU ä¸€èˆ¬å…¬è¡†åˆ©ç”¨è¨±è«¾å¥‘ç´„æ›¸ãƒãƒ¼ã‚¸ãƒ§ãƒ³2ã®å®šã‚ã‚‹æ¡ä»¶ã®
uokada 2012/03/09
GNU

iptables

network

security
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