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¡¡¡¡LVS ÊÇÕÂÎÄáÔ²©Ê¿·¢ÆðºÍÁìµ¼µÄÓÅÐãµÄ¼¯Èº½â¾ö·½°¸£¬Ðí¶àÉÌÒµµÄ¼¯Èº²úÆ·£¬±ÈÈçRedHatµÄPiranha£¬TurboLinux¹«Ë¾µÄTurbo ClusterµÈ£¬¶¼ÊÇ»ùÓÚLVSµÄºËÐÄ´úÂëµÄ¡£ÔÚÏÖʵµÄÓ¦ÓÃÖУ¬LVSµÃµ½ÁË´óÁ¿µÄ²¿Êð£¬Çë²Î¿¼http: //www.linuxvirtualserver.org/deployment.html

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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÷vs1ÉÏÃ棬ÐèÒªÏÂÃæµÄ¼¸¸ö²½Ö裺

¡¡¡¡ÖØбàÒëÄںˡ£

¡¡¡¡Ê×ÏÈ£¬ÏÂÔØ×îеÄLinuxÄںˣ¬°æ±¾ºÅΪ2.2.19£¬ÏÂÔصØַΪ£ºhttp://www.kernel.org/£¬½âѹËõºóÖÃÓÚ/usr/src/linuxĿ¼Ï¡£

¡¡¡¡Æä´ÎÐèÒªÏÂÔØLVSµÄÄں˲¹¶¡£¬µØַΪ£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¡£

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¡¡¡¡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)

¡¡¡¡ÉÏÃ棬´ø*ºÅµÄΪ±ØÑ¡Ïî¡£

È»ºó¾ÍÊdz£¹æµÄ±àÒëÄں˹ý³Ì£¬²»ÔÙ׸Êö£¬Çë²Î¿¼±àÒë Linux ½Ì³Ì

¡¡¡¡ÔÚÕâÀïҪעÒâÒ»µã£ºÈç¹ûÄãʹÓõÄÊÇRedHat×Ô´øµÄÄں˻òÕß´ÓRedHatÏÂÔصÄÄں˰汾£¬ÒѾ­Ô¤ÏÈ´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¡£

ʹÓÃLVSµÄÅäÖýű¾²úÉúlvs.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_logÎļþÖÐ.

real serverµÄÅäÖÃ

real serverµÄÅäÖÃÏà¶Ô¼òµ¥£¬Ö÷ÒªÊÇÊÇÒÔϼ¸µã£º

ÅäÖÃtelnetºÍWWW·þÎñ¡£telnet·þÎñûÓÐÐèÒªÌرð×¢ÒâµÄÊÂÏµ«ÊǶÔÓÚwww·þÎñ£¬ÐèÒªÐÞ¸Ähttpd.confÎļþ£¬Ê¹µÃapacheÔÚÐéÄâ·þÎñÆ÷µÄipµØÖ·ÉϼàÌý£¬ÈçÏÂËùʾ£º

Listen 192.168.0.101:80

¹Ø±Õreal serverÉÏdummy0µÄarpÇëÇóÏìÓ¦ÄÜÁ¦¡£ÕâÊDZØÐëµÄ£¬¾ßÌåÔ­ÒòÇë²Î¼ûARP problem in LVS/TUN and LVS/DR£¨http://www.linuxvirtualserver.org/arp.html£©¡£¹Ø±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¡£Èç¹ûÄúµÄ NFSÅäÖÃûÓгɹ¦£¬Ò²¿ÉÒÔ°Ñvs1ÉϵÄ/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:wwwRoute¡¡ 1¡¡0¡¡0

-> rs1:wwwRoute¡¡ 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¸´ÎÒ³Ã棨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:wwwRoute¡¡ 1¡¡0¡¡5

-> rs1:wwwRoute¡¡ 1¡¡0¡¡4


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