[B! loadbalancer] halfrackã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

halfrack id:halfrack

loadbalancerã«é–¢ã™ã‚‹halfrackã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (21)

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$halfrack$
halfrack 2021/12/06
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line

loadbalancer
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$halfrack$
halfrack 2019/12/09
TLS å¤šå°‘å‰ã®ã‚ã‚Šãªè¨å®šã

ddos

tls

loadbalancer
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ã•ãã‚‰ã®ã‚¯ãƒ©ã‚¦ãƒ‰ã€Œã‚¨ãƒ³ãƒãƒ³ã‚¹ãƒ‰LBã€ã‚’ä½œã£ãŸè©±(å‰ç·¨) - Qiita
ã“ã®è¨˜äº‹ã¯ ã•ãã‚‰ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆ Advent Calendar 2019 4æ—¥ç›®ã®è¨˜äº‹ã§ã™ã€‚ ã•ãã‚‰ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆç ”ç©¶æ‰€ã«æ‰€å±žã—ã¦ã„ã‚‹å¤§ä¹…ä¿ã§ã™ã€‚ãŠä¹…ã—ã¶ã‚Šã§ã™ã€‚ è‡ªåˆ†ã€ç ”ç©¶ã¯å…¨ãã‚„ã£ã¦ãªãã¦ã€ ã²ãŸã™ã‚‰å¼Šç¤¾ã®IaaSã§ã‚ã‚‹ã€Œã•ãã‚‰ã®ã‚¯ãƒ©ã‚¦ãƒ‰ã€ã®é‹ç”¨ã€é–‹ç™ºã€ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã€ãŠå®¢æ§˜ã‚µãƒãƒ¼ãƒˆã€æ§‹ç¯‰ã€ãƒ©ãƒƒã‚¯ãƒžã‚¦ãƒ³ãƒˆã€é…ç·šã€éšœå®³å¯¾å¿œã€ãã®ä»–ã‚ã‚‰ã‚†ã‚‹å…¨ã¦ã‚’ã‚„ã£ã¦ã„ã¾ã™ã€‚ã‚ˆã‚ã—ããŠããŒã„ã—ã¾ã™ ðŸ˜‡ ã›ã£ã‹ãAdvent Calendarç©ºã„ã¦ãŸã®ã§ã€æœ€è¿‘ä½œã£ã¦ã‚‹ã‚µãƒ¼ãƒ“ã‚¹ã®ç´¹ä»‹ã‚’ã•ã›ã¦ã„ãŸã ã“ã†ã¨æ€ã„ã¾ã™ã€‚ HTTPSã®çµ‚ç«¯ã£ã¦å¤§å¤‰ã ã—é¢å€’ã˜ã‚ƒãªã„ã§ã™ã‹ã€‚ ä»Šå›žã®ãƒã‚¿ã¯ã€ãŠå®¢æ§˜ã‹ã‚‰ã”è¦æœ›ã„ãŸã ã„ã¦1å¹´å‰ã‹ã‚‰é–‹ç™ºã‚¹ã‚¿ãƒ¼ãƒˆã—ãŸã‚µãƒ¼ãƒ“ã‚¹ãªã‚“ã§ã™ãã€‚å½“æ™‚ã€L4ã®ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã¯æä¾›ã—ã¦ã„ã¾ã—ãŸãŒã€è¦ä»¶ã¨ã—ã¦ã€ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆå‘ã‘å¤§è¦æ¨¡ã‚³ãƒ³ãƒ†ãƒ³ãƒ„é…ä¿¡ã«ä½¿ãˆã‚‹é«˜æ€§èƒ½ãªã‚‚ã®ã§ã€ DDoSå¯¾ç–ãŒã§ãã¦ã€ SSLã®çµ‚ç«¯
$halfrack$
halfrack 2019/12/05
ECMP ã¨ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã«ã‚ˆã‚‹ 3æ®µã®å®Ÿè£…

network

loadbalancer
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New â€“ TLS Termination for Network Load Balancers | Amazon Web Services
AWS News Blog New â€“ TLS Termination for Network Load Balancers When you access a web site using the HTTPS protocol, a whole lot of interesting work (formally known as an SSL/TLS handshake) happens to create and maintain a secure communication channel. Your client (browser) and the web server work together to negotiate a mutually agreeable cipher, exchange keys, and set up a session key. Once estab
$halfrack$
halfrack 2019/01/25
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AWS

TLS

network

loadbalancer
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Scaling Fastly Network: Balancing Requests | Fastly
Summary: In part 1, we discussed how Fastly started down the slippery slope of network software. Our previous experience with routing suggested that avoiding traditional network devices would not only dramatically cut capital expenditure, but also quickly outpace existing solutions. Having already eschewed routers, we turned our attention towards obsoleting load balancers entirely. In this post, w
$halfrack$
halfrack 2018/02/09
network

loadbalancer
ãƒªãƒ³ã‚¯
https://www.kernel.org/doc/Documentation/networking/ipvs-sysctl.txt
$halfrack$
halfrack 2016/09/29
iptables

kernel

LVS

loadbalancer
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LVS-NAT one arm - nyantã®ãƒ–ãƒã‚°
LVS-NATã§ã€real serverã‚’ã„ã˜ã‚‰ãªã„ã§æ¸ˆã‚€ä¸€æœ¬è…•ãªæ§‹æˆã‚’è€ƒãˆã¦è¦‹ã¾ã—ãŸã€‚ CONFIG_IP_VS_NFCT = y ãªã‚«ãƒ¼ãƒãƒ«ãŒå¿…è¦ã§ã™ã€‚ real serverã§ã¯ã€directorã‚µãƒ¼ãƒã‹ã‚‰ã®ã‚¢ã‚¯ã‚»ã‚¹ã«è¦‹ãˆã¾ã™ã€‚ æ§‹æˆ client: 192.168.1.1 director: 172.16.1.2 (VIP: 172.16.1.1) realserver: 10.1.1.1 directorã§è¨å®š sysctl echo 1 > /proc/sys/net/ipv4/ip_forward echo 1 > /proc/sys/net/ipv4/vs/conntrack vipã®è¨å®š ip addr add 172.16.1.1 label eth0:1 dev eth0 arping -U -c 1 -I eth0 172.16.1.1 ipvsadm ipvsad
$halfrack$
halfrack 2016/09/27
æœ€è¿‘ã® ip_vs ã¯ iptables ã¨ä¸€ç·’ã«å‹•ãã‹ã‚‰ SNAT ã•ã›ãŸã‚Šã§ãã‚‹ã®ã‹ãƒ¼

Linux

loadbalancer

network
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mruby ã‚’ç”¨ã„ãŸ Linux ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ã®å®Ÿè£…
$halfrack$
halfrack 2016/08/25
ç•°å¸¸ã«å®Ÿç”¨çš„ãªå’è«–ã

loadbalancer

keepalived

server
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GCP ã‚’æ”¯ãˆã‚‹ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µã®è¨è¨ˆã‚’å…¬é–‹
Google Cloud Platform (Google App Engine, Compute Engine, BigQuery ã‚„ Container Engine ãªã©ï¼‰ã®æƒ…å ±ã®æ—¥æœ¬å…¬å¼ãƒ–ãƒã‚°
$halfrack$
halfrack 2016/03/24
ECMP ã§å¸ã„è¾¼ã‚€ / Consistent hash ä½¿ã£ã¦ã‚‹ãªã‚‰ãƒ•ã‚§ã‚¤ãƒ«ã‚ªãƒ¼ãƒæ™‚ã®æŒ¯ã‚Šåˆ†ã‘æŒ™å‹•ãŒæ°—ã«ãªã‚‹

network

loadbalancer
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Path MTU discovery in practice
Last week, a very small number of our users who are using IP tunnels (primarily tunneling IPv6 over IPv4) were unable to access our services because a networking change broke "path MTU discovery" on our servers. In this article, I'll explain what path MTU discovery is, how we broke it, how we fixed it, and the open source code we used. via Flickr When a host on the Internet wants to send some data
$halfrack$
halfrack 2015/12/17
ECMPãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚¹ã§ICMP Unreachåˆ¥ã®ã¨ã“è¡Œã£ã¡ã‚ƒã†å•é¡Œã‚’ãƒ–ãƒãƒ¼ãƒ‰ã‚ãƒ£ã‚¹ãƒˆã™ã‚‹ãƒ‡ãƒ¼ãƒ¢ãƒ³ã§è§£æ±º

loadbalancer

CDN

network
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VPCã§ã‚¢ãƒ™ã‚¤ãƒ©ãƒ“ãƒªãƒ†ã‚£ã‚¾ãƒ¼ãƒ³è¶Šã—ã«ãƒ—ãƒ©ã‚¤ãƒ™ãƒ¼ãƒˆIPã‚’å…±æœ‰ã™ã‚‹ï¼ˆSource/Descãƒã‚§ãƒƒã‚¯å¤–ã—ï¼‰ - ã‚«ã‚¿ãƒ¤ãƒžãƒ³ãŒãƒ—ãƒã‚°ãƒ©ãƒžãƒãƒƒã‚¯ã«ä»Šæ—¥ã‚‚ã‚³ãƒ¼ãƒ‰ã‚¢ã‚·ã‚¹ãƒˆ
ä¹…ã€…ã®blogã§ã™ã€‚ç‰‡å±±ã§ã™ã€‚ å…ˆæ—¥@suz_labã•ã‚“ã¨ã€ENIå‡ºãŸã‘ã©AZã¯è¶Šã›ã¾ã›ã‚“ããƒ¼ã€ã¨ã„ã†è©±ã‚’ã—ã¦ã„ãŸã¨ãã«æ€ã„ã¤ã„ãŸã‚¢ã‚¤ãƒ‡ã‚¢ã‚’è©¦ã—ã¦ã¿ã¾ã—ãŸã€‚ ENIã«ã¤ã„ã¦ å…ˆæ—¥ç™ºè¡¨ã•ã‚ŒãŸAWSã®ä»®æƒ³ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚«ãƒ¼ãƒ‰æ©Ÿèƒ½ã€Elastic Network Intarface(é€šç§°ENI)ã§ã™ãŒã€ãƒ—ãƒ©ã‚¤ãƒ™ãƒ¼ãƒˆIPã¯ã‚‚ã¡ã‚ã‚“ã®ã“ã¨ã€ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ã‚°ãƒ«ãƒ¼ãƒ—ã‚„ã‚°ãƒãƒ¼ãƒãƒ«IPã€ã•ã‚‰ã«MACã‚¢ãƒ‰ãƒ¬ã‚¹ã¾ã§åˆ¥ã®ã‚µãƒ¼ãƒã«ã¤ã‘ãŸã‚Šå¤–ã—ãŸã‚Šã§ãã‚‹ã€ã‹ãªã‚Šã‚¤ã‚±ã¦ã‚‹æ©Ÿèƒ½ã§ã™ã€‚ EC2ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã«ENIã‚’ã²ã£ã¤ã‘ã‚‹ã“ã¨ã§ã€å…ƒã€…æŒã£ã¦ã„ã‚‹eth0ã¨åˆã‚ã›ã¦è¤‡æ•°ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚«ãƒ¼ãƒ‰ã‚’æŒã¤ã“ã¨ãŒå‡ºæ¥ã‚‹ã‚ˆã†ã«ãªã‚‹ã®ã§ã€ãƒžãƒ«ãƒãƒ›ãƒ¼ãƒ ã‚’å®Ÿç¾ã§ãã¾ã™ã€‚ã¾ãŸã‚ã‚‹EC2ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã‹ã‚‰åˆ¥ã®EC2ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã¸ä»˜ã‘æ›¿ãˆã§ãã‚‹ã®ã§ã€ãŸã¨ãˆã°DBã‚µãƒ¼ãƒã«ã²ã£ã¤ã‘ãŸENIã«å¯¾ã—ã¦Webã‚µãƒ¼ãƒã‹ã‚‰ã‚¢ã‚¯ã‚»ã‚¹ã•ã›ã¦ãŠã‘ã°ã€DBãŒæ»ã‚“ã ã¨ãã«ã‚‚åˆ¥ã§ç«‹
$halfrack$
halfrack 2013/12/12
AWS

network

loadbalancer
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HTTP/2.0ã®ALPNåˆ©ç”¨ã«ä¼´ã†SSLè² è·åˆ†æ•£è£…ç½®ã®ä¸å…·åˆã«ã”æ³¨æ„ä¸‹ã•ã„ - ã¼ã¡ã¼ã¡æ—¥è¨˜
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$halfrack$
halfrack 2013/11/06
"255ãƒã‚¤ãƒˆä»¥ä¸Šã®ClientHelloã‚’å—ä¿¡ã™ã‚‹ã¨TLSæŽ¥ç¶šãŒãƒãƒ³ã‚°ã‚¢ãƒƒãƒ—ã—ã¦ã—ã¾ã†ã¨ã„ã†ä¸å…·åˆã‚’æŒã¤ã‚‚ã®ãŒå˜åœ¨"

network

loadbalancer
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ocsp.verisign.net ã‚ã‚‹ã„ã¯ GSLB ã®é–“é•ã£ãŸè¨å®š - ã©ã•ã«ã£ã
2013å¹´8æœˆ11æ—¥(æ—¥) â– èµ¤å²©æ» _ ã“ã“æ•°æ—¥ã®æš‘ã•ã¯ã‚¨ã‚¢ã‚³ãƒ³ãªã—ã ã¨ãµã¤ãƒ¼ã«å¤œå¯ã¦ã„ã‚‹ã ã‘ã§ã‚‚ç†±ä¸ç—‡ã§å‘½ã®å±é™ºã‚’æ„Ÿã˜ã‚‹ã€‚ã®ã§ã€ã„ã¤ã‚‚ã®ã‚ˆã†ã«é€±æœ«ã¯æ¶¼ã—ã„ã¨ã“ã‚ã«é¿é›£ã€‚å¥¥æ—¥å…‰ã®æ¨™é«˜1400mã®ã¨ã“ã‚ã¾ã§ä¸ŠãŒã£ã¦è»Šä¸æ³Šã—ã¦ã„ãŸã‚‰ã€æ˜Žã‘æ–¹ã«è‚Œå¯’ã•ã§ç›®ãŒè¦šã‚ãŸã€‚ã¨ãƒ¼ãœã‚“æ¯›å¸ƒã‚’ã‹ã¶ã£ã¦äºŒåº¦å¯ã™ã‚‹ã‚ã‘ã ãŒã€æ—¥ãŒæ˜‡ã£ã¦æœ8æ™‚ã‚’éŽãŽã‚‹ã¨ã ã„ã¶æš‘ããªã‚‹ãªã€ã‚„ã£ã±ã‚Šã€‚ _ ä¸–é–“ã¯ãŠç›†ã§ã¿ã‚“ãªä¼‘ã‚“ã§ã‚‹ã®ã§ã€åã®ã‚ã‚‹ã¨ã“ã‚ã¯ã©ã“ã‚‚äººãŒãŸãã•ã‚“ã„ã‚‹ã ã‚ã†ãªãƒ¼ã€ã¨ã„ã†ã“ã¨ã§ã€èª°ã‚‚æ¥ãã†ã«ãªã„ã¨ã“ã‚ã¸ã€‚è¦³å…‰åŒ–ã•ã‚Œã¦ã„ãªã„å¥¥åœ°ã«ã‚ã‚‹èµ¤å²©æ»ã¸ã€‚ã„ã¡ãŠã†åœ°å›³ã«åå‰ã¯è¼‰ã£ã¦ã¯ã„ã‚‹ã‘ã©ã€ãã“ã«è‡³ã‚‹é“ãŒè¨˜è¼‰ã•ã‚Œã¦ã„ãªã„ãã‚‰ã„ãƒžã‚¤ãƒŠãƒ¼ãªæ»ã€‚ã¾ã‚ã€åœ°å›³ã«é“ã¯ãªãã¦ã‚‚ã€ç¾åœ°ã«è¡Œã£ã¦ã¿ã‚‹ã¨è¸ã¿è·¡ã¯æ˜Žçžã ã—é“æ¨™ã‚‚ã¡ã‚ƒã‚“ã¨ã‚ã‚‹ã‚“ã ã‘ã©ãªã€‚ _ 80åˆ†ã»ã©æ©ã„ã¦åˆ°ç€ã€‚ãŠãŠã€ãƒ‡ã‚«ã„ã€‚æ°´é‡ã¯ãã‚“ãªã«å¤šãã¯ãªã„ã‘ã©ã€æ»å£·ã®ã™ãä¸‹ã¾ã§è¡Œã‘ã‚‹ã®ã§
$halfrack$
halfrack 2013/08/21
ã»ã¸ãƒ¼ "GSLB ã‚’ä½¿ã†ã®ã¯ã„ã„ã‚“ã ã‘ã©ã€ãã®éš›ã®ã‚¾ãƒ¼ãƒ³åˆ†å‰²ã®ã—ã‹ãŸãŒé–“é•ã£ã¦ã„ã¦æ£ã—ãæ¨©å¨ã‚’å§”è²ã§ãã¦ã„ãªã„ã‚µã‚¤ãƒˆãŒå¤šã™ãŽã‚‹ã€‚"

DNS

loadbalancer
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IPVS: Allow boot time change of hash size
$halfrack$
halfrack 2013/04/17
"options ip_vs conn_tab_bits"

linux

network

loadbalancer

lvs
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GitHub - blblack/gdnsd: Authoritative DNS Server --
$halfrack$
halfrack 2013/02/12
"for geographic (or other sorts of) balancing, redirection, and service-state-conscious failover"

DNS

loadbalancer
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Load Balancing in The Cloud | PDF | Web Server | Internet & Web
Load Balancing is a method to distribute workload across one or more servers, network interfaces, hard drives, or other computing resources. Typical datacenter implementations rely on large, powerful (and expensive) computing hardware and network infrastructure, which are subject to the usual risks associated with any physical device, including hardware failure, power and/or network interruptions,
$halfrack$
halfrack 2012/12/23
AWS

network

loadbalancer
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Relayd: a load balancer for OpenBSD
Relayd is a daemon to relay and dynamically redirect incoming connections to a target host. Its main purposes are to run as a load-balancer, application layer gateway, or transparent proxy.Read less
$halfrack$
halfrack 2012/12/10
Relayd: a load balancer for OpenBSD

relayd

server

network

loadbalancer
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ã“ã‚“ã«ã¡ã¯ã€‚ã‚¢ãƒ¡ãƒ¼ãƒã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒˆã€è²¬ä»»è€…ã®ã„ã¥ã‚‹ã§ã™ã€‚ æœ¬å½“ã¯åè‚²ã¦ã«ã¤ã„ã¦æ›¸ããŸã„ã®ã§ã™ãŒã€ä½•ã§ã‚‚ãŠè¦‹é€šã—ã®M.Sæ°ã‹ã‚‰ ã€Œè‚²å…ã®è©±é¡Œã¯ç¦æ¢ã ã‹ã‚‰ã€ ã¨ã€å‰ã‚‚ã£ã¦çœ‰é–“ã«é‡˜ã‚’åˆºã•ã‚ŒãŸã®ã§ã€æ¸‹ã€…ã€åä¾›ã¨å«ã¨ãƒãƒƒã‚¯ã¨å“²å¦ã¨é’ã„ç©ºã¨åºƒã„æµ·ã®æ¬¡ã«å¥½ããªã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®è©±ã§ã‚‚æ›¸ã„ã¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚ ã¨ã¯è¨€ãˆã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æ©Ÿå™¨ã®ã‚ˆã†ãªã€æ¯”è¼ƒçš„å˜ç´”ãªãƒ‘ã‚¿ãƒ¼ãƒ³ãƒžãƒƒãƒãƒ³ã‚°ã®å‡¦ç†ã‚’ã²ãŸã™ã‚‰é«˜é€Ÿã«ã¶ã‚“å›žã™ä¸–ç•Œã§ã¯ã€CPUã®å‡¦ç†é€Ÿåº¦ãŒé£›èºçš„ã«é«˜ã¾ã£ãŸç¾åœ¨ã§ã‚‚ã€ã¾ã ã¾ã ASICã‚„FPGAãªã©ã®ãƒãƒ¼ãƒ‰ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã•ã‚ŒãŸãƒãƒƒãƒ—å‡¦ç†ãŒä¸»æµã§ã”ã–ã„ã¾ã—ã¦ã€ã€ã€ã¤ã¾ã‚‹ã¨ã“ã‚ã€ã¡ã‚‡ã£ã¨è¶³ã‚’æ·±ãè¸ã¿å…¥ã‚ŒãŸæ¿ƒã‚†ã„ã¨ã“ã‚ã¯NDAãƒ™ãƒ¼ã‚¹ã®ã‚„ã‚Šã¨ã‚Šã«ãªã£ãŸã‚Šã€ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£çš„ã«é–‹ç¤ºã§ããªã‹ã£ãŸã‚Šã¨ã€æœ¬å½“ã«é¢ç™½ã„ã¨ã“ã‚ã¯å¤§äººã¨ã—ã¦æ›¸ã‘ãªã‹ã£ãŸã‚Šã‚‚ã—ã¾ã™ã€‚ ãã‚“ãªã‚ã‘ã§ã€ä½•ã‚’æ›¸ã“ã†ã‹æ‚©ã‚“ã çµæžœã€ã‚¢ãƒ¡ãƒ¼ãƒã¨ã„ã†ã‚µãƒ¼ãƒ“ã‚¹ã‚’æ”¯ãˆã‚‹ã€
$halfrack$
halfrack 2011/05/25
"å¤§è¦æ¨¡ã‚µãƒ¼ãƒ“ã‚¹ã‚’æ”¯ãˆã‚‹ä»®æƒ³ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯" ã¨åˆã‚ã›ã¦èªã¿ãŸã„

network

loadbalancer
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ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãƒ–ãƒã‚°ã‚’ã”è¦§ã®çš†ã•ã‚“ã“ã‚“ã«ã¡ã¯ã€ã‚¤ãƒ³ãƒ•ãƒ©ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ã™ã¨ãƒ¼ã§ã™ã€‚ åƒ•ã¯ã‚¤ãƒ³ãƒ•ãƒ©ã®ä¸ã§ã‚‚ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒãƒ¼ãƒ ã§é•·ã‚‰ãåƒã„ã¦ããŸãŸã‚ã€ ä»Šå›žã¯Amebaã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã¾ã‚ã‚Šã®ãŠè©±ã‚’ã•ã›ã¦ã„ãŸã ã“ã†ã‹ã¨æ€ã„ã¾ã™ã€‚ ãã“ã§ã€ã€Œãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯åŸºç›¤ã®å¤‰é·ã®æ´å²ã€ã‚’ä¸€æ©è¸ã¿è¾¼ã‚“ã§ã€ ãã®æ™‚ã€…ã§ãƒã‚¤ãƒ³ãƒˆã«ãªã£ãŸ(ã¨æ€ã£ã¦ã„ã‚‹)æŠ€è¡“ã‚’ã€ç°¡å˜ãªè¨å®šä¾‹ã¨å…±ã«ç´¹ä»‹ã—ã¦ã„ãã¾ã™ã€‚ å‰æã¨ã—ã¦ã€å¼Šç¤¾ã§ã¯ãƒ«ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã¯ã‚¹ã‚¿ãƒ†ã‚£ãƒƒã‚¯ã«è¡Œã£ã¦ãŠã‚Šã€ æ©Ÿå™¨ã«ã¤ã„ã¦ã¯Ciscoã¨H3Cã‚’7:3ã®å‰²åˆãã‚‰ã„ã§åˆ©ç”¨ã—ã¦ã„ã¾ã™ã€‚(ã–ã£ãã‚Š) å…¶ã®ä¸€ ã€ŒVRFã€ VRF(Virtual Routing and Forwarding)ã¨ã¯ã€ã²ã¨ã¤ã®ãƒ«ãƒ¼ã‚¿å†…ã§ä»®æƒ³çš„ã« è¤‡æ•°ã®ãƒ«ãƒ¼ã‚¿ãƒ¼(ãƒ«ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ãƒ†ãƒ¼ãƒ–ãƒ«)ã‚’ä½œã‚Œã‚‹æ©Ÿèƒ½ã§ã™ã€‚(ã–ã£ãã‚Š) ä¸»ãªç›®çš„ã¯ã€åˆæœŸã‚¢ãƒ¡ãƒ¼ãƒã®ä½™å‰°ãªãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒªã‚½ãƒ¼ã‚¹ã‚’ã€ ãƒžãƒ«ãƒãƒ¬ã‚¤ãƒ¤ã‚¹ã‚¤ãƒƒãƒã®å°Žå…¥ã§è§£æ¶ˆã™ã‚‹ã¨
$halfrack$
halfrack 2011/05/25
ã†ã¡ã‚‚ J ã® FBF/VRF ã§ LB ã®æˆ»ã‚Šãƒ‘ã‚±ãƒƒãƒˆæŒã„ãŸã‚Šã—ã¦ã„ã‚‹

network

server

loadbalancer
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Direct Server Return support in OpenBSD
$halfrack$
halfrack 2010/01/23
OpenBSD

relayd

DSR

loadbalancer

pf

network
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