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Ò»¡¢ÉèÖÃKeepalived

Keepalived ÊÇÒ»¸ö¿ªÔ´µÄ¸ß¿ÉÓýâ¾ö¼Æ»®£¬¿ÉÒÔʵÏÖЧÀÍÆ÷µÄ¹ÊÕÏתÒƺ͸ºÔØƽºâ¡£ÏÂÃæÊÇÉèÖÃKeepalivedµÄ°ì·¨£º

×°ÖÃKeepalived£º

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$ sudo apt-get install keepalived

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·­¿ªKeepalivedÉèÖÃÎļþ£¬Í¨³£Î»ÓÚ/etc/keepalived/keepalived.conf£¬²¢Æ¾Ö¤ÏÂÃæµÄʾÀý¾ÙÐÐÉèÖãº

! Configuration File for keepalived

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass mypassword
    }
    virtual_ipaddress {
        192.168.0.100/24
    }
}

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ÉÏÊöÉèÖÃÖУ¬state MASTERÌåÏÖÄ¿½ñЧÀÍÆ÷ÊÇÖ÷½Úµã£¬interface eth0ÌåÏÖÍøÂç½Ó¿Ú£¬virtual_router_id 51ÊÇÐéÄâ·ÓÉÆ÷µÄID£¬priority 100ÊÇÓÅÏȼ¶£¬advert_int 1Êǹã¸æ¾àÀëʱ¼ä£¬auth_pass mypasswordÊÇÈÏÖ¤ÃÜÂ룬virtual_ipaddressÊÇÐéÄâIPµØµã¡£

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ʹÓÃÒÔÏÂÏÂÁîÆô¶¯KeepalivedЧÀÍ£º

$ sudo service keepalived start

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LVS£¨Linux Virtual Server£©ÊÇÒ»¸ö¿ªÔ´µÄÍøÂ縺ÔØƽºâÆ÷£¬¿ÉÒÔ½«ÍøÂçÁ÷Á¿·Ö·¢µ½¶à¸öºó¶ËЧÀÍÆ÷ÉÏ¡£ÏÂÃæÊÇÉèÖÃLVSµÄ°ì·¨£º

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$ sudo apt-get install ipvsadm

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$ sudo ipvsadm -A -t 192.168.0.100:80 -s rr

$ sudo ipvsadm -a -t 192.168.0.100:80 -r 192.168.0.101 -g
$ sudo ipvsadm -a -t 192.168.0.100:80 -r 192.168.0.102 -g

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$ sudo service ipvsadm start

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