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Stray Penguin - Linux Memo (iptables)
éžå¸¸ã«å½¹ã«ç«‹ã¤ HOWTO ã«ã€ Oskar Andreasson ã® Iptables tutorial ãŒã‚ã‚‹ã€‚æ—¥æœ¬èªžè¨³ãŒå˜åœ¨ã—ãªã‹ã£ãŸã®ã§ç¿»è¨³ã—ãŸ (2006/01 æœ¬å®¶ã«ã‚‚æŽ²è¼‰ã•ã‚Œã¾ã—ãŸ - Thank you, Oskar !)ã€‚ iptables ã¯ã€ã‚«ãƒ¼ãƒãƒ«ãŒåˆ©ç”¨ã™ã‚‹IPãƒ‘ã‚±ãƒƒãƒˆãƒ•ã‚£ãƒ«ã‚¿ã®ãƒ«ãƒ¼ãƒ«ã‚’ã€æ“ä½œã™ã‚‹ãŸã‚ã®ãƒ¦ãƒ¼ãƒ†ã‚£ãƒªãƒ†ã‚£ã€‚ã‚«ãƒ¼ãƒãƒ«ãã®ã‚‚ã®ã¨å¯†æŽ¥ã«é–¢ä¿‚ã—ã¦ãŠã‚Šã€kernel-2.2 ã§ã¯ ipchains ãŒä½¿ã‚ã‚Œã¦ã„ãŸã€‚kernel-2.4 ä»¥é™ã€ iptables ãŒæ¨™æº–ã¨ãªã‚‹ã€‚ipchains ã¨ã¯æ¯”ã¹ã‚‚ã®ã«ãªã‚‰ãªã„ã»ã©ã€è†¨å¤§ãªç¨®é¡žã®æ“ä½œã‚ªãƒ—ã‚·ãƒ§ãƒ³ãŒç”¨æ„ã•ã‚Œã¦ã„ã‚‹ã€‚ipchains ã¨ã®æœ€ã‚‚å¤§ããªé•ã„ã¯ã€ãƒ‘ã‚±ãƒƒãƒˆã‚’æ—¢å˜ã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã¨ã®é–¢ä¿‚æ€§ã«ã‚ˆã£ã¦è˜åˆ¥ã§ãã‚‹ã€Œã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ãƒˆãƒ©ãƒƒã‚ãƒ³ã‚° (æŽ¥ç¶šè¿½è·¡)ã€ ã¨ã„ã†ãƒ¡ã‚«ãƒ‹ã‚ºãƒ ã‚’å®Ÿè£…ã—ã¦ã„ã‚‹ã“ã¨ã€‚ã“ã® conntrack æ©Ÿ
shiumachi 2010/05/13
linux

network

iptables

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Ubuntuã§ãƒ–ãƒªãƒƒã‚¸æŽ¥ç¶šã™ã‚‹ - Asterisk works Wiki
Ubuntuã§ã¯ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®è¨å®šã¯ /etc/network/interfacesã‚’ç·¨é›†ã—ã¦è¡Œã†ã€‚ br0ã‚’eth0ã«ãƒ–ãƒªãƒƒã‚¸ã™ã‚‹å ´åˆã¯æ¬¡ã®ä¾‹ã®æ§˜ã«è¨å®šã™ã‚‹ã€‚ IPã‚¢ãƒ‰ãƒ¬ã‚¹ç‰ã¯ç’°å¢ƒã«åˆã‚ã›èªã¿æ›¿ãˆã‚‹ã“ã¨ auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 0.0.0.0 auto br0 iface br0 inet static address 192.168.1.211 network 192.168.1.0 netmask 255.255.255.0 broadcast 192.168.1.255 gateway 192.168.1.1 bridge_ports eth0 bridge_stp off bridge_maxwait 1 br0ã‚‚DHCPã§è¨å®šã—ãŸã‘ã‚Œã°ã€br0ã®è¨å®šéƒ¨åˆ†ã‚’æ¬¡ã®
shiumachi 2010/05/10
ubuntu

network
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Ubuntu/ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«å¾Œã®è¨å®š - TOBY SOFT wiki
ã¯ã˜ã‚ã« â€ ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«å¾Œã«ã‚„ã£ã¦ãŠãã“ã¨ã€‚ ã“ã“ã§ã¯ä¸»ã«Ubuntu 8.04LTS,10.04LTS serverç‰ˆãªã®ã§æ³¨æ„ã§ã™ã€‚ ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—ç‰ˆã®æ–¹ã¯ã€Ubuntu 10.04 Lucid Lynxã‚’ä½¿ã† (10.04ä»¥å¤–ã¯ã“ã¡ã‚‰) ã®ãƒšãƒ¼ã‚¸ãŒã„ã‚ã„ã‚å‚è€ƒã«ãªã‚Šã¾ã™ã€‚ ã‚ã¨å…¬å¼ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆã‚‚ä»¥ä¸‹ç•¥ â†‘ proxyã®è¨å®š â€ proxyã¨ã‹ã‚’é€šã™å ´åˆ /etc/profile ã« http_proxy=http://(proxyã®IP):(proxyã®ãƒãƒ¼ãƒˆ)/ export http_proxy ã¨ã—ã¦ãŠãã¨ã€ã¨ã‚Šã‚ãˆãšã€ãƒãƒƒãƒˆã«ã¤ãªãŒã‚‹ã¨ãã«proxyã‚’é€šã™ã“ã¨ã«ãªã‚‹ã€‚ ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã‚’å…¥ã‚Œã‚‹éš›ã‚„ã‚·ã‚¹ãƒ†ãƒ ã®ã‚¢ãƒƒãƒ—ãƒ‡ãƒ¼ãƒˆã®éš›ã«ä½¿ã† aptitudeã® proxyã®è¨å®šã®ä»•æ–¹ã¯ä»¥ä¸‹ã‚’å‚ç…§ã®ã“ã¨ ä¸Šè¨˜ã ã‘ã ã¨ã€cronã¨ã‹ã§aptitudeã‚’å‹•ã‹ã—ãŸã¨ããªã‚“ã‹ã«proxyè¨å®šãŒä½¿ã‚ã‚Œã¾
shiumachi 2010/05/10
ubuntu

network
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Manpage of NETDEVICE
NETDEVICE Section: Linux Programmer's Manual (7) Updated: 1999-05-02 Index JM Home Page roff page åå‰ netdevice - Linux ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‡ãƒã‚¤ã‚¹ã¸ã®ä½Žãƒ¬ãƒ™ãƒ«ã‚¢ã‚¯ã‚»ã‚¹ æ›¸å¼ #include <sys/ioctl.h> #include <net/if.h> èª¬æ˜Ž ã“ã® man ãƒšãƒ¼ã‚¸ã§ã¯ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‡ãƒã‚¤ã‚¹ã‚’è¨å®šã™ã‚‹ãŸã‚ã« ç”¨ã„ã‚‹ã‚½ã‚±ãƒƒãƒˆã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã«ã¤ã„ã¦è§£èª¬ã™ã‚‹ã€‚ Linux ã¯ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‡ãƒã‚¤ã‚¹ã‚’è¨å®šã™ã‚‹ãŸã‚ã®æ¨™æº–çš„ãª ioctl ã‚’ ã„ãã¤ã‹å‚™ãˆã¦ã„ã‚‹ã€‚ã“ã‚Œã‚‰ã¯ã©ã‚“ãªã‚½ã‚±ãƒƒãƒˆã®ãƒ•ã‚¡ã‚¤ãƒ«ãƒ‡ã‚£ã‚¹ã‚¯ãƒªãƒ—ã‚¿ã«ã‚‚ ç”¨ã„ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ãƒ•ã‚¡ãƒŸãƒªãƒ¼ã‚„ã‚¿ã‚¤ãƒ—ã¯ä½•ã§ã‚‚ã‚ˆã„ã€‚ ã“ã‚Œã‚‰ã® ioctl ã¯ ifreq æ§‹é€ ä½“ã‚’æ¸¡ã™ã€‚ struct ifreq { char ifr_na
shiumachi 2009/12/03
ifconfigã§è¦‹ã‚Œã‚‹ãƒ•ãƒ©ã‚°ã®ä¸€è¦§ã¯ã“ã“ã«ã‚ã‚‹ã€‚å®šç¾©è‡ªä½“ã¯ net/if.h ã«ã‚ã‚‹ã€‚net/if.h è‡ªä½“ã¯ glibc ç”±æ¥ã®ã‚ˆã†ã ã€‚

linux

network

kernel
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Scapy
shiumachi 2009/10/27
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python

tool

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Multiqueue networking [LWN.net]
One of the fundamental data structures in the networking subsystem is the transmit queue associated with each device. The core networking code will call a driver's hard_start_xmit() function to let the driver know that a packet is ready for transmission; it is then the driver's job to feed that packet into the hardware's transmit queue. The result is a data structure which looks vaguely like this:
shiumachi 2008/09/25
2.6.27ã§ã‚µãƒãƒ¼ãƒˆã•ã‚Œã‚‹ã€‚

kernel

network
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Nagle's algorithm - Wikipedia
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources:Â "Nagle's algorithm"Â â€“Â newsÂ Â· newspapersÂ Â· booksÂ Â· scholarÂ Â· JSTOR (June 2014) (Learn how and when to remove this message) Nagle's algorithm is a means of improving the efficiency of TCP/IP networks by red
shiumachi 2008/07/31
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TCPIP

algorithm
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