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vs1: RedHat 6.2, Kernel 2.2.19
vs1: eth0 192.168.0.1
vs1: eth0:101 192.168.0.101
rs1: RedHat 6.2, Kernel 2.2.14
rs1: eth0 192.168.0.3
rs1: dummy0 192.168.0.101
rs2: RedHat 6.2, Kernel 2.2.14
rs2: eth0 192.168.0.4
rs2: dummy0 192.168.0.101
client: Windows 2000
client: eth0 192.168.0.200
¡¡¡¡ÆäÖУ¬192.168.0.101ÊÇÔÊÐíÓû§·ÃÎʵÄIP¡£
¡¡¡¡ÐéÄâ·þÎñÆ÷µÄ¼¯ÈºÅäÖÃ
¡¡¡¡´ó²¿·ÖµÄ¼¯ÈºÅäÖù¤×÷¶¼ÔÚÐéÄâ·þÎñÆ÷vs1ÉÏÃæ£¬ÐèÒªÏÂÃæµÄ¼¸¸ö²½Ö裺
¡¡¡¡ÖØÐ±àÒëÄںˡ£
¡¡¡¡Ê×ÏÈ£¬ÏÂÔØ×îеÄLinuxÄںˣ¬°æ±¾ºÅΪ2.2.19£¬ÏÂÔØµØÖ·Îª£ºhttp://www.kernel.org/£¬½âѹËõºóÖÃÓÚ/usr/src/linuxĿ¼Ï¡£
¡¡¡¡Æä´ÎÐèÒªÏÂÔØLVSµÄÄں˲¹¶¡£¬µØÖ·Îª£ºhttp://www.linuxvirtualserver.org/software/ipvs-1.0.6-2.2.19.tar.gz¡£ÕâÀï×¢Ò⣬Èç¹ûÄãÓõÄLinuxÄں˲»ÊÇ2.2.19°æ±¾µÄ£¬ÇëÏÂÔØÏàÓ¦°æ±¾µÄLVSÄں˲¹¶¡¡£½«ipvs-1.0.6-2.2.19.tar.gz½âѹËõºóÖÃÓÚ/usr/src/linuxĿ¼Ï¡£
¡¡¡¡È»ºó£¬¶ÔÄں˴ò²¹¶¡£¬ÈçϲÙ×÷£º
[root@vs2 /root]# cd /usr/src/linux
[root@vs2 linux]# patch -p1 < ipvs-1.0.6-2.2.19/ipvs-1.0.6-2.2.19.
patch
¡¡¡¡ÏÂÃæ¾ÍÊÇÖØÐÂÅäÖúͱàÒëLinuxµÄÄںˡ£Ìرð×¢ÒâÒÔÏÂÑ¡Ï
1 Code maturity level options--->
* [*]Prompt for development and/or incomplete code/drivers
2 Networking²¿·Ö£º
[*] Kernel/User netlink socket
[*] Routing messages
<*> Netlink device emulation
* [*] Network firewalls
[*] Socket Filtering
<*> Unix domain sockets
* [*] TCP/IP networking
[*] IP: multicasting
[*] IP: advanced router
[ ] IP: policy routing
[ ] IP: equal cost multipath
[ ] IP: use TOS value as routing key
[ ] IP: verbose route monitoring
[ ] IP: large routing tables
[ ] IP: kernel level autoconfiguration
* [*] IP: firewalling
[ ] IP: firewall packet netlink device
* [*] IP: transparent proxy support
* [*] IP: masquerading
--- Protocol-specific masquerading support will be built as modules.
* [*] IP: ICMP masquerading
--- Protocol-specific masquerading support will be built as modules.
* [*] IP: masquerading special modules support
* IP: ipautofw masq support (EXPERIMENTAL)(NEW)
* IP: ipportfw masq support (EXPERIMENTAL)(NEW)
* IP: ip fwmark masq-forwarding support (EXPERIMENTAL)(NEW)
* [*] IP: masquerading virtual server support (EXPERIMENTAL)(NEW)
[*] IP Virtual Server debugging (NEW) <--×îºÃÑ¡Ôñ´ËÏÒÔ±ã¹Û²ìLVSµÄµ÷ÊÔÐÅÏ¢
* (12) IP masquerading VS table size (the Nth power of 2) (NEW)
* IPVS: round-robin scheduling (NEW)
* IPVS: weighted round-robin scheduling (NEW)
* IPVS: least-connection scheduling (NEW)
* IPVS: weighted least-connection scheduling (NEW)
* IPVS: locality-based least-connection scheduling (NEW)
* IPVS: locality-based least-connection with replication scheduling
(NEW)
* [*] IP: optimize as router not host
* IP: tunneling
IP: GRE tunnels over IP
[*] IP: broadcast GRE over IP
[*] IP: multicast routing
[*] IP: PIM-SM version 1 support
[*] IP: PIM-SM version 2 support
* [*] IP: aliasing support
[ ] IP: ARP daemon support (EXPERIMENTAL)
* [*] IP: TCP syncookie support (not enabled per default)
--- (it is safe to leave these untouched)
< > IP: Reverse ARP
[*] IP: Allow large windows (not recommended if <16Mb of memory)
< > The IPv6 protocol (EXPERIMENTAL)
¡¡¡¡ÉÏÃæ£¬´ø*ºÅµÄΪ±ØÑ¡ÏȻºó¾ÍÊdz£¹æµÄ±àÒëÄں˹ý³Ì£¬²»ÔÙ׸Êö¡£
¡¡¡¡ÔÚÕâÀïҪעÒâÒ»µã£ºÈç¹ûÄãʹÓõÄÊÇRedHat×Ô´øµÄÄں˻òÕß´ÓRedHatÏÂÔØµÄÄں˰汾£¬ÒѾԤÏÈ´òºÃÁËLVSµÄ²¹¶¡¡£Õâ¿ÉÒÔͨ¹ý²é¿´/usr/src/linux/net/Ŀ¼ÏÂÓÐûÓм¸¸öipvs¿ªÍ·µÄÎļþÀ´ÅжϣºÈç¹ûÓУ¬Ôò˵Ã÷ÒѾ´ò¹ý²¹¶¡¡£
¡¡¡¡±àдLVSÅäÖÃÎļþ£¬ÊµÀýÖеÄÅäÖÃÎļþÈçÏ£º
#lvs_dr.conf (C) Joseph Mack mack@ncifcrf.gov
LVS_TYPE=VS_DR
INITIAL_STATE=on
VIP=eth0:101 192.168.0.101 255.255.255.0 192.168.0.0
DIRECTOR_INSIDEIP=eth0 192.168.0.1 192.168.0.0 255.255.255.0 192.168.0. 255
SERVICE=t telnet rr rs1:telnet rs2:telnet
SERVICE=t www rr rs1:www rs2:www
SERVER_VIP_DEVICE=dummy0
SERVER_NET_DEVICE=eth0
#----------end lvs_dr.conf------------------------------------
¡¡¡¡½«¸ÃÎļþÖÃÓÚ/etc/lvsĿ¼Ï¡£
¡¡¡¡Ê¹ÓÃLVSµÄÅäÖýű¾²úÉúlvs.confÎļþ¡£¸ÃÅäÖýű¾¿ÉÒÔ´Óhttp://www.linuxvirtualserver.org/Joseph.Mack/configure-lvs_0.8.tar.gz µ¥¶ÀÏÂÔØ£¬ÔÚipvs-1.0.6-2.2.19.tar.gz°üÖÐÒ²Óаüº¬½Å±¾configureµÄʹÓ÷½·¨£º
[root@vs2 lvs]# configure lvs.conf
¡¡¡¡ÕâÑù»á²úÉú¼¸¸öÅäÖÃÎļþ£¬ÕâÀïÎÒÃÇֻʹÓÃÆäÖеÄrc.lvs_drÎļþ¡£ÐÞ¸Ä/etc/rc.d/init.d/rc.local£¬Ôö¼ÓÈçϼ¸ÐУº
echo 1 > /proc/sys/net/ipv4/ip_forward
echo 1 > /proc/sys/net/ipv4/ip_always_defrag
# ÏÔʾ×î¶àµ÷ÊÔÐÅÏ¢
echo 10 > /proc/sys/net/ipv4/vs/debug_level
¡¡¡¡ÅäÖÃNFS·þÎñ¡£ÕâÒ»²½½ö½öÊÇΪÁË·½±ã¹ÜÀí£¬²»ÊDZØÐëµÄ²½Öè¡£¼ÙÉèÅäÖÃÎļþlvs.confÎļþ·ÅÔÚ/etc/lvsĿ¼Ï£¬Ôò/etc/exportsÎļþµÄÄÚÈÝΪ£º
/etc/lvs ro(rs1,rs2)
¡¡¡¡È»ºóʹÓÃexportfsÃüÁîÊä³öÕâ¸öĿ¼:
[root@vs2 lvs]# exportfs
¡¡¡¡Èç¹ûÓöµ½Ê²Ã´Âé·³£¬¿ÉÒÔ³¢ÊÔ£º
[root@vs2 lvs]# /etc/rc.d/init.d/nfs restart
[root@vs2 lvs]# exportfs
¡¡¡¡ÕâÑù£¬¸÷¸öreal server¿ÉÒÔͨ¹ýNFS»ñµÃrc.lvs_drÎļþ£¬·½±ãÁ˼¯ÈºµÄÅäÖÃ:Äãÿ´ÎÐÞ¸Älvs.confÖеÄÅäÖÃÑ¡Ï¶¼¿ÉÒÔ¼´¿É·´Ó³ÔÚrs1,rs2µÄÏàӦĿ¼Àï¡£ ÐÞ¸Ä/etc/syslogd.conf£¬Ôö¼ÓÈçÏÂÒ»ÐУº kern.* /var/log/kernel_log¡£ÕâÑù£¬LVSµÄһЩµ÷ÊÔÐÅÏ¢¾Í»áдÈë/var/log/kernel_logÎļþÖС£
¡¡¡¡Real ServerµÄÅäÖÃ
¡¡¡¡Real ServerµÄÅäÖÃÏà¶Ô¼òµ¥£¬Ö÷ÒªÊÇÊÇÒÔϼ¸µã£º
¡¡¡¡ÅäÖÃtelnetºÍWWW·þÎñ¡£telnet·þÎñûÓÐÐèÒªÌØ±ð×¢ÒâµÄÊÂÏµ«ÊǶÔÓÚwww·þÎñ£¬ÐèÒªÐÞ¸Ähttpd.confÎļþ£¬Ê¹µÃapacheÔÚÐéÄâ·þÎñÆ÷µÄipµØÖ·ÉϼàÌý£¬ÈçÏÂËùʾ£º
Listen 192.168.0.101:80
¡¡¡¡¹Ø±ÕReal ServerÉÏdummy0µÄarpÇëÇóÏìÓ¦ÄÜÁ¦¡£ÕâÊDZØÐëµÄ£¬¾ßÌåÔÒòÇë²Î¼û ARP problem in LVS/TUN and LVS/DR¹Ø±Õdummy0µÄarpÏìÓ¦µÄ·½Ê½ÓжàÖÖ£¬±È½Ï¼òµ¥µØ·½·¨ÊÇ£¬ÐÞ¸Ä/etc/rc.d/rc.localÎļþ£¬Ôö¼ÓÈçϼ¸ÐУº
echo 1 > /proc/sys/net/ipv4/conf/all/hidden
ifconfig dummy0 up
ifconfig dummy0 192.168.0.101 netmask 255.255.255.0 broadcast 192.168. 0.0 up
echo 1 > /proc/sys/net/ipv4/conf/dummy0/hidden
ÔÙ´ÎÐÞ¸Ä/etc/rc.d/rc.local£¬Ôö¼ÓÈçÏÂÒ»ÐУº£¨¿ÉÒԺͲ½Öè2ºÏ²¢£©
echo 1 > /proc/sys/net/ipv4/ip_forward
¡¡¡¡ËÄ LVSµÄ²âÊÔ
¡¡¡¡ºÃÁË£¬¾¹ýÁËÉÏÃæµÄÅäÖò½Ö裬ÏÖÔÚ¿ÉÒÔ²âÊÔLVSÁË£¬²½ÖèÈçÏ£º
¡¡¡¡·Ö±ðÔÚvs1£¬rs1£¬rs2ÉÏÔËÐÐ/etc/lvs/rc.lvs_dr¡£×¢Ò⣬rs1,rs2ÉÏÃæµÄ/etc/lvsĿ¼ÊÇvs2Êä³öµÄ¡£Èç¹ûÄúµÄNFSÅäÖÃûÓгɹ¦£¬Ò²¿ÉÒÔ°Ñvs1ÉÏ/etc/lvs/rc.lvs_dr¸´ÖƵ½rs1,rs2ÉÏ£¬È»ºó·Ö±ðÔËÐС£È·±£rs1,rs2ÉÏÃæµÄapacheÒѾÆô¶¯²¢ÇÒÔÊÐítelnet¡£
¡¡¡¡È»ºó´ÓclientÔËÐÐtelnet 192.168.0.101£¬Èç¹ûµÇ¼ºó¿´µ½ÈçÏÂÊä³ö¾Í˵Ã÷¼¯ÈºÒѾ¿ªÊ¼¹¤×÷ÁË¡££¨¼ÙÉèÒÔguestÓû§Éí·ÝµÇ¼£©
¡¡¡¡[guest@rs1 guest]$-----------˵Ã÷ÒѾµÇ¼µ½·þÎñÆ÷rs1ÉÏ¡£
¡¡¡¡ÔÙ¿ªÆôÒ»¸ötelnet´°¿Ú£¬µÇ¼ºó»á·¢ÏÖϵͳÌáʾ±äΪ£º
¡¡¡¡[guest@rs2 guest]$-----------˵Ã÷ÒѾµÇ¼µ½·þÎñÆ÷rs2ÉÏ¡£
¡¡¡¡È»ºóÔÚvs2ÉÏÔËÐÐÈçÏÂÃüÁ
[root@vs2 /root]ipvsadm
¡¡¡¡ÔËÐнá¹ûÓ¦¸ÃΪ£º
IP Virtual Server version 1.0.6 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 192.168.0.101:telnet rr
-> rs2:telnet Route 1 1 0
-> rs1:telnet Route 1 1 0
TCP 192.168.0.101:www rr
-> rs2:www Route 1 0 0
-> rs1:www Route 1 0 0
¡¡¡¡ÖÁ´ËÒѾÑéÖ¤telnetµÄLVSÕý³£¡£È»ºó²âÊÔÒ»ÏÂWWWÊÇ·ñÕý³££ºÓÃÄãµÄä¯ÀÀÆ÷²é¿´http://192.168.0.101/ÊÇ·ñÓÐʲô±ä»¯£¿ÎªÁ˸üÃ÷È·µÄÇø±ðÏìÓ¦À´×ÔÄǸöReal Server£¬¿ÉÒÔÔÚrs1,rs2ÉÏÃæ·Ö±ð·ÅÖÃÈçϵIJâÊÔÒ³Ãæ(test.html)£º
ÎÒÊÇreal server #1 or #2
¡¡¡¡È»ºóˢм¸´ÎÒ³Ãæ£¨http://192.168.0.101/test.html£©£¬Èç¹ûÄã¿´µ½¡°ÎÒÊÇreal server #1¡±ºÍ¡°ÎÒÊÇreal server #2¡±½»Ìæ³öÏÖ£¬ËµÃ÷wwwµÄLVSϵͳÒѾÕý³£¹¤×÷ÁË¡£
¡¡¡¡µ«ÊÇÓÉÓÚInternet Explore »òÕßNetscape±¾ÉíµÄ»º´æ»úÖÆ£¬ÄãÒ²Ðí×ÜÊÇÖ»ÄÜ¿´µ½ÆäÖеÄÒ»¸ö¡£²»¹ýͨ¹ýipvsadm»¹ÊÇ¿ÉÒÔ¿´³ö£¬Ò³ÃæÇëÇóÒѾ·ÖÅäµ½Á½¸öReal ServerÉÏÁË£¬ÈçÏÂËùʾ£º
IP Virtual Server version 1.0.6 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 192.168.0.101:telnet rr
-> rs2:telnet Route 1 0 0
-> rs1:telnet Route 1 0 0
TCP 192.168.0.101:www rr
-> rs2:www Route 1 0 5
-> rs1:www Route 1 0 4
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[root@client /root]while true; do lynx -dump
http://10.64.1.56/test.html; sleep 1; done
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