L3 DSR(Direct Server Return)을 구성할 때 서버에서 해당 설정을 위해 구성해야할 IP Tunnel 설정에 대한 내용을 정리합니다.
L4 VIP에 대한 Loopback 설정
ifconfig lo up
ifconfig lo:1 inet xxx.xxx.xxx.xxx(L4 virtual ipaddress) netmask 255.255.255.255
echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
(arp에 대한 추가적인 설정은 loopback에 설정된 VIP가 ARP에 대한 응답을 하거나 Announce하는 것을 방지하기 위함이며, 이를 설정하지 않았을 때 L4 VIP와 loopback IP에 IP 충돌이 발생할 수 있음)
L4 VIP에 대한 IP Tunnel 설정
ifconfig tunl0 xxx.xxx.xxx.xxx(L4 virtual ipaddress) netmask 255.255.255.255 broadcast xxx.xxx.xxx.xxx(L4 virtual ipaddress) up
시스템에 방화벽 설정이 되어 있다면, 아래와 같이 해당 IP Tunel에 대한 방화벽 해제를 해야 합니다.
iptable –A OUTPUT –s xxx.xxx.xxx.xxx(L4 virtual ipaddress) –p tcp –m tcp –tcp-flags SYN,RST,ACK SYN,ACK –j TCPMSS –set-mss 1440
(세부 내용은 유닉스/리눅스 시스템에 대한 방화벽 설정 내용 iptables을 참조하세요)
위 내용은 L3 DSR 구성을 위한 서버 시스템의 설정부분을 중심으로 정리된 내용이며, 시트릭스 시스템의 설정은 다음에 다시 정리하도록 하겠습니다.
참고로, 현재까지 IP Tunnel을 지원하는 시스템 – L3 DSR 구성을 할 수 있는 시스템-은 유닉스계열 및 리눅스 계열의 시스템만 가능합니다. 윈도우 기반의 서버시스템에서는 아직 제공하지 않는다고 합니다.
http://zosel.net/trackback/239
from.モンブラン ボールペン 2016/01/30 19:23
場合どんなに彼のためにいくつかのいずれかを検索必要不可欠事 ::: ZOSEL ::: :: L3 DSR(Direct Server Return) IP Tunnel 、したがって彼/彼女希望へその事がこっちに維持されている詳細に、こうして、したがってそうことを利用できる。
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