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Linuxã®Netns/veth/Bridge/NATã§ä»®æƒ³ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æ§‹ç¯‰
ã“ã®è¨˜äº‹ã¯ OIC IT Create Club Advent Calendar 2018 15 æ—¥ç›®ãŒç©ºã„ã¦ãŸã®ã§ã€ãã®ã¤ã‚‚ã‚Šã§æ›¸ã„ã¦ã„ã‚‹è¨˜äº‹ã§ã™ã€‚ https://adventar.org/calendars/3072 Linux ã«ã¯ã€ä»¥ä¸‹ã®ã‚ˆã†ãªæ©Ÿèƒ½ãŒæ¨™æº–ã§å®Ÿè£…ã•ã‚Œã¦ãŠã‚Šã€ç°¡å˜ã«ä½¿ç”¨å¯èƒ½ã§ã™ã€‚ Cisco ã®ã‚ˆã†ãªæ©Ÿå™¨ã«ã¯æ€§èƒ½ãŒåŠã°ãªã„ã§ã™ãŒã€ä¸€é€šã‚Šã®åŸºæœ¬çš„ãªåãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã¯ã‚‚ã¡ã‚ã‚“ã€æ›´ã«é«˜åº¦ãªãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚‚æ°—è»½ã«çµ„ã‚€ã“ã¨ãŒå‡ºæ¥ã¾ã™ã€‚ ã“ã‚Œã‚‰ã®æ©Ÿèƒ½ã‚’çµ„ã¿åˆã‚ã›ã¦ Docker ç‰ã®ã‚³ãƒ³ãƒ†ãƒŠã‚¨ãƒ³ã‚¸ãƒ³ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æŠ€è¡“ã¯æ§‹ç¯‰ã•ã‚Œã¦ã„ã¾ã™ã€‚ iptables ãƒ•ã‚¡ã‚¤ã‚¢ã‚¦ã‚©ãƒ¼ãƒ«ãƒ»NAT(SNAT/DNAT/Masquerade)ç‰ã®æ©Ÿèƒ½ã‚’æä¾› ä¸»ã«ã€IP ã¨ TCP/UDP ç‰ã®ãƒ—ãƒãƒˆã‚³ãƒ«ã«å¯¾ã—ã¦è¨å®šãŒæ›¸ã‘ã‚‹ iptables ã‚³ãƒžãƒ³ãƒ‰ã§æ“ä½œãŒå¯èƒ½ Bridge L2 ãªãƒ–ãƒªãƒƒã‚¸ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§
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Namespaces in operation, part 1: namespaces overview [LWN.net]
Namespaces in operation, part 1: namespaces overview LWN.net needs you!Without subscribers, LWN would simply not exist. Please consider signing up for a subscription and helping to keep LWN publishing The Linux 3.8 merge window saw the acceptance of Eric Biederman's sizeable series of user namespace and related patches. Although there rem ain some details to finishâ€”for example, a number of Linux fi
yuanying 2020/07/30
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Neutron ã¯ OpenStack ã®ä¸ã§ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯å‘¨ã‚Šã‚’å¸ã‚‹ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã€‚ é€šå¸¸ã¯ OpenStack ã®ãã®ä»–ã®ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã¨çµ„ã¿åˆã‚ã›ã¦ä½¿ã†ãã‚Œã‚’ã€å‹•ä½œã®ç†è§£ã‚’æ·±ã‚ã‚‹ãŸã‚ã«ä»Šå›žã¯å˜ç‹¬ã§å‹•ã‹ã—ã¦ã¿ã‚‹ã€‚ ä½¿ã†ãƒ—ãƒ©ã‚°ã‚¤ãƒ³ã¯ä»Šé¢¨ã® ML2 ã«ã™ã‚‹ã€‚ ä½¿ã†ç’°å¢ƒã¯ä»¥ä¸‹ã®é€šã‚Šã€‚ $ cat /etc/redhat-release CentOS release 6.5 (Final) $ uname -r 2.6.32-431.11.2.el6.x86_64 $ sudo yum -y install python-devel $ wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py -O - | sudo python $ sudo easy_install pip $ sudo pip install
yuanying 2014/08/18
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Linux ãŒæŒã¤ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ä»®æƒ³åŒ–æ©Ÿèƒ½ã®è©±ã€‚ kernel 2.6.24 ä»¥é™ã§ã‚µãƒãƒ¼ãƒˆã•ã‚Œã‚‹ã€‚å®Ÿè¡Œã«ã¯iprouteãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã® 3ï¼ˆãŠãã‚‰ãï¼‰ ä»¥é™ãŒå¿…è¦ã€‚ Fedora16, 17ã€Ubuntu12.04 ã¯æ¨™æº–ã§åˆ©ç”¨å¯èƒ½ã‚’ç¢ºèªã€‚ RHEL6ç³»ã¯iprouteã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ãŒä½Žã„ãŸã‚åˆ©ç”¨ä¸å¯ã€‚ åˆ©ç”¨å¯å¦ã¯ä»¥ä¸‹ã®ã‚³ãƒžãƒ³ãƒ‰ã§ç¢ºèªå¯èƒ½ã€‚ # ip netns ã“ã®ã‚³ãƒžãƒ³ãƒ‰ãŒã‚¨ãƒ©ãƒ¼ã«ãªã‚‰ãªã‘ã‚Œã°ã€åˆ©ç”¨æ¡ä»¶ã‚’æº€ãŸã›ã¦ã„ã‚‹ï¼ˆã¯ãš åˆ©ç”¨æ–¹æ³•ã¯ä»¥ä¸‹ ä¸€ã¤ã®ãƒ›ã‚¹ãƒˆå†…ã§ç‹¬ç«‹ã—ãŸãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ç’°å¢ƒã‚’ä½œæˆã§ãã‚‹ã€‚ ä½œæˆã—ãŸãƒãƒ¼ãƒ ã‚¹ãƒšãƒ¼ã‚¹ã¯ãƒ›ã‚¹ãƒˆã®ç‰©ç†ç’°å¢ƒã‚„ã€ä»–ã®ãƒãƒ¼ãƒ ã‚¹ãƒšãƒ¼ã‚¹ã®å¹²æ¸‰ã‚’å—ã‘ãªã„ã€‚ ç‰¹ã«1ãƒ›ã‚¹ãƒˆä¸Šã§ã®ä»®æƒ³ãƒžã‚·ãƒ³ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯çš„ãªåˆ†é›¢ã«åˆ©ç”¨ã•ã‚Œã‚‹ã€‚ â– ä½œæˆæ–¹æ³• # ip netns add testns01 â– ãƒãƒ¼ãƒ ã‚¹ãƒšãƒ¼ã‚¹ã®ç¢ºèª # ip netns testns01 â– ãƒãƒ¼ãƒ ã‚¹ãƒšãƒ¼ã‚¹ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼
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