鍊熷姪LVS+Keepalived瀹炵幇璐熻浇鍧囪，

文章由LinuxBoy分享于2020-12-20 07:12:35热评（640）

鍊熷姪LVS+Keepalived瀹炵幇璐熻浇鍧囪，

涓€銆佽礋杞藉潎琛★細蹇呬笉鍙皯鐨勫熀纭€鎵嬫

1.1 鎵炬洿澶氱殑鐗涙潵鎷夎溅鍚?/h3>
褰撳墠澶у鏁扮殑浜掕仈缃戠郴缁熼兘浣跨敤浜嗘湇鍔″櫒闆嗙兢鎶€鏈紝闆嗙兢鍗?strong>灏嗙浉鍚屾湇鍔￠儴缃插湪澶氬彴鏈嶅姟鍣ㄤ笂鏋勬垚涓€涓泦缇ゆ暣浣撳澶栨彁渚涙湇鍔?/strong>锛岃繖浜涢泦缇ゅ彲浠ユ槸Web搴旂敤鏈嶅姟鍣ㄩ泦缇わ紝涔熷彲浠ユ槸鏁版嵁搴撴湇鍔″櫒闆嗙兢锛岃繕鍙互鏄垎甯冨紡缂撳瓨鏈嶅姟鍣ㄩ泦缇ょ瓑绛夈€?/p>
www.real.com锛夈€佸叏鐞冩渶澶х殑寮€婧愮綉绔欙紙sourceforge.net锛夌瓑銆?/p>

2.3 LVS鐨勪綋绯荤粨鏋?/h3>
浣跨敤LVS鏋惰鐨勬湇鍔″櫒闆嗙兢绯荤粺鏈変笁涓儴鍒嗙粍鎴愶細

锛?锛夋渶鍓嶇鐨勮礋杞藉潎琛″眰锛岀敤Load Balancer琛ㄧず锛?/p>
锛?锛変腑闂寸殑鏈嶅姟鍣ㄩ泦缇ゅ眰锛岀敤Server Array琛ㄧず锛?/p>
锛?锛夋渶搴曠鐨勬暟鎹叡浜瓨鍌ㄥ眰锛岀敤Shared Storage琛ㄧず锛?/p>
鍦ㄧ敤鎴风湅鏉ワ紝鎵€鏈夌殑鍐呴儴搴旂敤閮芥槸閫忔槑鐨勶紝鐢ㄦ埛鍙槸鍦ㄤ娇鐢ㄤ竴涓櫄鎷熸湇鍔″櫒鎻愪緵鐨勯珮鎬ц兘鏈嶅姟銆?/p>
http://ixdba.blog.51cto.com/2895551/552947

2.4 LVS璐熻浇鍧囪　鏈哄埗

锛?锛塋VS鏄?strong>鍥涘眰璐熻浇鍧囪　锛屼篃灏辨槸璇村缓绔嬪湪OSI妯″瀷鐨勭鍥涘眰——浼犺緭灞備箣涓婏紝浼犺緭灞備笂鏈夋垜浠啛鎮夌殑 TCP/UDP锛孡VS鏀寔TCP/UDP鐨勮礋杞藉潎琛°€傚洜涓篖VS鏄洓灞傝礋杞藉潎琛★紝鍥犳瀹冪浉瀵逛簬鍏跺畠楂樺眰璐熻浇鍧囪　鐨勮В鍐冲姙娉曪紝姣斿DNS鍩熷悕杞祦瑙ｆ瀽銆佸簲鐢ㄥ眰璐熻浇鐨勮皟搴︺€佸鎴风鐨勮皟搴︾瓑锛屽畠鐨勬晥鐜囨槸闈炲父楂樼殑銆?/p>

锛?锛塋VS鐨勮浆鍙戜富瑕侀€氳繃淇敼IP鍦板潃锛圢AT妯″紡锛屽垎涓烘簮鍦板潃淇敼SNAT鍜岀洰鏍囧湴鍧€淇敼DNAT锛夈€?strong>淇敼鐩爣MAC锛圖R妯″紡锛夋潵瀹炵幇銆?/p>

鈶燦AT妯″紡锛氱綉缁滃湴鍧€杞崲

192.168.80.100 lvs-master 192.168.80.101 lvs-slave #涓嬮潰鏄湰娆¤瘯楠岀殑涓や釜鐪熷疄鏈嶅姟鍣ㄨ妭鐐? 192.168.80.102 lvs-webserver1 192.168.80.103 lvs-webserver2

淇濆瓨鍚庨€€鍑?/p>

楠岃瘉锛?strong>ping lvs-master

锛?锛夊叧闂槻鐏

鈶犳墽琛屽叧闂槻鐏鍛戒护锛?strong>service iptables stop

楠岃瘉锛?strong>service iptables stauts

鈶℃墽琛屽叧闂槻鐏鑷姩杩愯鍛戒护锛?strong>chkconfig iptables off

楠岃瘉锛?strong>chkconfig --list | grep iptables

3.3 閰嶇疆涓ゅ彴Web鏈嶅姟鍣?/h3>
浠ヤ笅鎿嶄綔闇€瑕佸湪瑙掕壊涓篧eb鏈嶅姟鍣ㄧ殑涓ゅ彴涓繘琛岋紝涓嶉渶瑕佸湪璐熻浇鍧囪　鏈嶅姟鍣ㄤ腑杩涜鎿嶄綔锛?/p>
锛?锛夊紑鍚痟ttp鏈嶅姟

鍛戒护锛歴ervice httpd start

琛ュ厖锛歝hkconfig httpd on -->灏唄ttpd璁句负鑷惎鍔ㄦ湇鍔?/p>
锛?锛夊湪瀹夸富鏈鸿闂甒eb缃戦〉锛屽苟閫氳繃FTP宸ュ叿涓婁紶鑷畾涔夌綉椤碉細杩欓噷涓婁紶涓€涓潤鎬佺綉椤碉紝骞堕€氳繃鏇存敼鍏朵腑鐨刪tml鏉ュ尯鍒袱鍙癢eb鏈嶅姟鍣紝浠ヤ笅鍥炬墍绀轰负渚嬶紝鍏朵腑涓€鍙版樉绀篺rom 192.168.80.102锛岃€屽彟涓€鍙版樉绀篺rom 192.168.80.103锛?/p>
SNS_VIP=192.168.80.200 /etc/rc.d/init.d/functions case "$1" in start) ifconfig lo:0 $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP /sbin/route add -host $SNS_VIP dev lo:0 echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce sysctl -p >/dev/null 2>&1 echo "RealServer Start OK" ;; stop) ifconfig lo:0 down route del $SNS_VIP >/dev/null 2>&1 echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce echo "RealServer Stoped" ;; *) echo "Usage: $0 {start|stop}" exit 1 esac exit 0
杩欓噷鎴戜滑璁剧疆铏氭嫙IP涓猴細192.168.80.200

鈶繚瀛樿剼鏈枃浠跺悗鏇存敼璇ユ枃浠舵潈闄愶細chmod 755 realserver

鈶ｅ紑鍚痳ealserver鏈嶅姟锛歴ervice realserver start

3.4 閰嶇疆涓昏礋杞芥湇鍔″櫒

锛?锛夊畨瑁匥eepalived鐩稿叧鍖?/p>

yum install -y keepalived

鍦–entOS涓嬶紝閫氳繃yum install鍛戒护鍙互寰堟柟渚垮湴瀹夎杞欢鍖咃紝浣嗘槸鍓嶆彁鏄綘鐨勮櫄鎷熸満瑕佽仈缃戯紱

锛?锛夌紪杈慿eepalived.conf閰嶇疆鏂囦欢

鈶犺繘鍏eepalived.conf鎵€鍦ㄧ洰褰曪細cd /etc/keepalived

鈶￠鍏堟竻闄ゆ帀keepalived鍘熸湁閰嶇疆锛?gt; keepalived.conf

鈶㈤噸鏂扮紪杈慿eepalived閰嶇疆鏂囦欢锛歷i keepalived.conf

global_defs {  
   notification_email {  
         edisonchou@hotmail.com  
   }  
   notification_email_from sns-lvs@gmail.com  
   smtp_server 192.168.80.1  
   smtp_connection_timeout 30
   router_id LVS_DEVEL  # 璁剧疆lvs鐨刬d锛屽湪涓€涓綉缁滃唴搴旇鏄敮涓€鐨?
}  
vrrp_instance VI_1 {  
    state MASTER   #鎸囧畾Keepalived鐨勮鑹诧紝MASTER涓轰富锛孊ACKUP涓哄          
    interface eth1  #鎸囧畾Keepalived鐨勮鑹诧紝MASTER涓轰富锛孊ACKUP涓哄
    virtual_router_id 51  #铏氭嫙璺敱缂栧彿锛屼富澶囪涓€鑷?
    priority 100  #瀹氫箟浼樺厛绾э紝鏁板瓧瓒婂ぇ锛屼紭鍏堢骇瓒婇珮锛屼富DR蹇呴』澶т簬澶囩敤DR    
    advert_int 1  #妫€鏌ラ棿闅旓紝榛樿涓?s
    authentication {  
        auth_type PASS  
        auth_pass 1111  
    }  
    virtual_ipaddress {  
        192.168.80.200  #瀹氫箟铏氭嫙IP(VIP)涓?92.168.2.33锛屽彲澶氳锛屾瘡琛屼竴涓?
    }  
}  
# 瀹氫箟瀵瑰鎻愪緵鏈嶅姟鐨凩VS鐨刅IP浠ュ強port
virtual_server 192.168.80.200 80 {  
    delay_loop 6 # 璁剧疆鍋ュ悍妫€鏌ユ椂闂达紝鍗曚綅鏄                    
    lb_algo wrr # 璁剧疆璐熻浇璋冨害鐨勭畻娉曚负wlc                   
    lb_kind DR # 璁剧疆LVS瀹炵幇璐熻浇鐨勬満鍒讹紝鏈塏AT銆乀UN銆丏R涓変釜妯″紡   
    nat_mask 255.255.255.0                
    persistence_timeout 0          
    protocol TCP                  
    real_server 192.168.80.102 80 {  # 鎸囧畾real server1鐨処P鍦板潃
        weight 3   # 閰嶇疆鑺傜偣鏉冨€硷紝鏁板瓧瓒婂ぇ鏉冮噸瓒婇珮              
        TCP_CHECK {  
        connect_timeout 10         
        nb_get_retry 3  
        delay_before_retry 3  
        connect_port 80  
        }  
    }  
    real_server 192.168.80.103 80 {  # 鎸囧畾real server2鐨処P鍦板潃
        weight 3  # 閰嶇疆鑺傜偣鏉冨€硷紝鏁板瓧瓒婂ぇ鏉冮噸瓒婇珮  
        TCP_CHECK {  
        connect_timeout 10  
        nb_get_retry 3  
        delay_before_retry 3  
        connect_port 80  
        }  
     }  
}

锛?锛夊紑鍚痥eepalived鏈嶅姟

service keepalived start

3.5 閰嶇疆浠庤礋杞芥湇鍔″櫒

浠庤礋杞芥湇鍔″櫒涓庝富璐熻浇鏈嶅姟鍣ㄥぇ鑷寸浉鍚岋紝鍙槸鍦╧eepalived鐨勯厤缃枃浠朵腑闇€瑕佹敼浠ヤ笅涓ゅ锛?/p>

锛?锛夊皢state鐢盡ASTER鏀逛负BACKUP

锛?锛夊皢priority鐢?00鏀逛负99

vrrp_instance VI_1 {  
    state BACKUP # 杩欓噷鏀逛负BACKUP
    interface eth1  
    virtual_router_id 51  
    priority 99 # 杩欓噷鏀逛负99锛宮aster浼樺厛绾ф槸100
    advert_int 1  
    authentication {  
        auth_type PASS  
        auth_pass 1111  
    }  
    virtual_ipaddress {  
        192.168.80.200  
    }  
}

3.6 楠岃瘉鎬ф祴璇?/h3>
锛?锛夋寚瀹氳姹傜殑鍧囪　杞彂锛氬洜涓轰袱涓猈eb鏈嶅姟鍣ㄧ殑鏉冮噸閮戒竴鏍凤紝鎵€浠ヤ細渚濇杞彂缁欎袱涓猈eb鏈嶅姟鍣紱

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鍊熷姪LVS+Keepalived瀹炵幇璐熻浇鍧囪，