diff --git a/common/utils/utils_linux.go b/common/utils/utils_linux.go
new file mode 100644
index 0000000..2dcb784
--- /dev/null
+++ b/common/utils/utils_linux.go
@@ -0,0 +1,25 @@
+// +build linux
+
+package utils
+
+import (
+	"syscall"
+
+	"github.com/nadoo/glider/common/log"
+)
+
+func InitRLimit() {
+	var rlim syscall.Rlimit
+	err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rlim)
+	if err != nil {
+		log.F("get rlimit error: " + err.Error())
+		return
+	}
+	rlim.Cur = 1048576
+	rlim.Max = 1048576
+	err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rlim)
+	if err != nil {
+		log.F("set rlimit error: " + err.Error())
+		return
+	}
+}
diff --git a/common/utils/utils_linux_other.go b/common/utils/utils_linux_other.go
new file mode 100644
index 0000000..105e9a8
--- /dev/null
+++ b/common/utils/utils_linux_other.go
@@ -0,0 +1,7 @@
+// +build !linux
+
+package utils
+
+func InitRLimit() {
+
+}
diff --git a/main.go b/main.go
index 5b1f4ad..06f5e7c 100644
--- a/main.go
+++ b/main.go
@@ -7,6 +7,7 @@ import (
 	"syscall"
 
 	"github.com/nadoo/glider/common/log"
+	"github.com/nadoo/glider/common/utils"
 	"github.com/nadoo/glider/dns"
 	"github.com/nadoo/glider/ipset"
 	"github.com/nadoo/glider/proxy"
@@ -46,6 +47,8 @@ func main() {
 		}
 	}
 
+	utils.InitRLimit()
+
 	// global rule dialer
 	dialer := rule.NewDialer(conf.rules, strategy.NewDialer(conf.Forward, &conf.StrategyConfig))