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                            ## DNS 負載均衡
GSLB：通過DNS調整覆蓋方案進行大區域調度，常用于CDN
DNS服務器完成了域名到IP 地址的映射，這種映射也可以是一對多的，這時候，DNS 服務器便充當了負載均衡調度器（也稱均衡器），它將用戶的請求分散到多臺服務器上，但是它的實現機制完全不同。

## IP層負載均衡
LVS

## 數據鏈路層負載均衡

修改Mac地址

## 應用層負載均衡

Nginx/Tengine/Apache/Haproxy

## HTTP重定向

301/302等重定向資源
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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