diff --git a/pkg/serverconfigs/global_server_config.go b/pkg/serverconfigs/global_server_config.go
index 10308f0..347ed4b 100644
--- a/pkg/serverconfigs/global_server_config.go
+++ b/pkg/serverconfigs/global_server_config.go
@@ -5,6 +5,7 @@ package serverconfigs
 func NewGlobalServerConfig() *GlobalServerConfig {
 	var config = &GlobalServerConfig{}
 	config.HTTPAll.SupportsLowVersionHTTP = true
+	config.HTTPAll.EnableServerAddrVariable = true
 
 	config.HTTPAccessLog.IsOn = true
 	config.HTTPAccessLog.EnableRequestHeaders = true
@@ -35,10 +36,11 @@ type GlobalServerConfig struct {
 		DefaultDomain        string                `yaml:"defaultDomain" json:"defaultDomain"`               // 默认的域名
 		DomainMismatchAction *DomainMismatchAction `yaml:"domainMismatchAction" json:"domainMismatchAction"` // 不匹配时采取的动作
 
-		SupportsLowVersionHTTP  bool   `yaml:"supportsLowVersionHTTP" json:"supportsLowVersionHTTP"`   // 是否启用低版本HTTP
-		MatchCertFromAllServers bool   `yaml:"matchCertFromAllServers" json:"matchCertFromAllServers"` // 从所有服务中匹配证书（不要轻易开启！）
-		ForceLnRequest          bool   `yaml:"forceLnRequest" json:"forceLnRequest"`                   // 强制从Ln请求内容
-		ServerName              string `yaml:"serverName" json:"serverName"`                           // Server名称
+		SupportsLowVersionHTTP   bool   `yaml:"supportsLowVersionHTTP" json:"supportsLowVersionHTTP"`     // 是否启用低版本HTTP
+		MatchCertFromAllServers  bool   `yaml:"matchCertFromAllServers" json:"matchCertFromAllServers"`   // 从所有服务中匹配证书（不要轻易开启！）
+		ForceLnRequest           bool   `yaml:"forceLnRequest" json:"forceLnRequest"`                     // 强制从Ln请求内容
+		ServerName               string `yaml:"serverName" json:"serverName"`                             // Server名称
+		EnableServerAddrVariable bool   `yaml:"enableServerAddrVariable" json:"enableServerAddrVariable"` // 是否支持${serverAddr}变量
 	} `yaml:"httpAll" json:"httpAll"` // HTTP统一配置
 
 	HTTPAccessLog struct {