diff --git a/go.mod b/go.mod
index 24f28ac17..eb103b66c 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/fanux/sealos
 go 1.13
 
 require (
-	github.com/cuisongliu/sshcmd v1.4.1
+	github.com/cuisongliu/sshcmd v1.4.2
 	github.com/fanux/sealgate v0.0.4
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/spf13/cobra v0.0.5
diff --git a/go.sum b/go.sum
index 8b2331ccc..b16a2fbcd 100644
--- a/go.sum
+++ b/go.sum
@@ -18,8 +18,8 @@ github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3Ee
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
-github.com/cuisongliu/sshcmd v1.4.1 h1:wbtT1HnisY6ZszRqlljG/E9bfixxIa86g+Uqo0ejT/A=
-github.com/cuisongliu/sshcmd v1.4.1/go.mod h1:jAEBZhFW5kNey9B+59lR8mfQaCQsyp8b8QaI7RhESxE=
+github.com/cuisongliu/sshcmd v1.4.2 h1:4eJ1OXhMBUU9NPVEvKS5T24v0N+zKkKbtgP66pDVSKk=
+github.com/cuisongliu/sshcmd v1.4.2/go.mod h1:jAEBZhFW5kNey9B+59lR8mfQaCQsyp8b8QaI7RhESxE=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
diff --git a/install/utils.go b/install/utils.go
index 305deebed..b61e718f6 100644
--- a/install/utils.go
+++ b/install/utils.go
@@ -199,7 +199,30 @@ func NextIP(ip net.IP) net.IP {
 func ParseIPs(ips []string) []string {
 	var hosts []string
 	for _, nodes := range ips {
-		// nodes 192.168.0.2-192.168.0.6
+		var startIp, endIp string
+		if !strings.Contains(nodes, "-") {
+			hosts = append(hosts, nodes)
+			continue
+		} else {
+			// nodes 192.168.0.2-192.168.0.6
+			// 1.1.1.1 - 155.155.155.155
+			hostSilts := strings.Split(nodes, "-")
+			if len(hostSilts) > 2 {
+				logger.Error("multi-nodes/multi-masters illegal; host spilt than more two .")
+				os.Exit(-1)
+			} else {
+				startIp = strings.Split(nodes, "-")[0]
+				endIp = strings.Split(nodes, "-")[1]
+				if len(startIp) < 7 {
+					logger.Error("multi-nodes/multi-masters illegal;start host length less 7 , like 1.1.1.1 can used, but not %s .", startIp)
+					os.Exit(-1)
+				}
+				if len(endIp) < 7 {
+					logger.Error("multi-nodes/multi-masters illegal;end host length less 7 , like 1.1.1.1 can used, but not s% .", endIp)
+					os.Exit(-1)
+				}
+			}
+		}
 		if len(nodes) > 15 {
 			logger.Error("multi-nodes/multi-masters illegal.")
 			os.Exit(-1)
@@ -207,12 +230,11 @@ func ParseIPs(ips []string) []string {
 			hosts = append(hosts, nodes)
 			continue
 		}
-		startip := strings.Split(nodes, "-")[0]
-		endip := strings.Split(nodes, "-")[1]
-		hosts = append(hosts, startip)
-		for Cmp(stringToIP(startip), stringToIP(endip)) < 0 {
-			startip = NextIP(stringToIP(startip)).String()
-			hosts = append(hosts, startip)
+
+		hosts = append(hosts, startIp)
+		for Cmp(stringToIP(startIp), stringToIP(endIp)) < 0 {
+			startIp = NextIP(stringToIP(startIp)).String()
+			hosts = append(hosts, startIp)
 		}
 	}
 	return hosts
diff --git a/install/utils_test.go b/install/utils_test.go
index 3fa31e118..083a77ee7 100644
--- a/install/utils_test.go
+++ b/install/utils_test.go
@@ -28,7 +28,7 @@ func TestPrint(t *testing.T) {
 }
 
 func TestVersionToInt(t *testing.T) {
-	t.Log(VersionToInt("v1.15.6"))
+	t.Log(ParseIPs([]string{"1.1.1.1-1.1.1.5"}))
 }
 
 func TestUrlGetMd5(t *testing.T) {
diff --git a/vendor/github.com/cuisongliu/sshcmd/pkg/sshutil/scp.go b/vendor/github.com/cuisongliu/sshcmd/pkg/sshutil/scp.go
index ded6396a2..c1a03f38f 100644
--- a/vendor/github.com/cuisongliu/sshcmd/pkg/sshutil/scp.go
+++ b/vendor/github.com/cuisongliu/sshcmd/pkg/sshutil/scp.go
@@ -8,6 +8,7 @@ import (
 	"golang.org/x/crypto/ssh"
 	"net"
 	"os"
+	"strings"
 	"time"
 )
 
@@ -22,6 +23,8 @@ func (ss *SSH) CopyForMD5(host, localFilePath, remoteFilePath, md5 string) bool
 	ss.Copy(host, localFilePath, remoteFilePath)
 	remoteMD5 := ss.Md5Sum(host, remoteFilePath)
 	logger.Debug("host: %s , remote md5: %s", host, remoteMD5)
+	remoteMD5 = strings.TrimSpace(remoteMD5)
+	md5 = strings.TrimSpace(md5)
 	if remoteMD5 == md5 {
 		logger.Info("md5 validate true")
 		return true
diff --git a/vendor/modules.txt b/vendor/modules.txt
index f1d77fbc6..d2edff093 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -10,7 +10,7 @@ github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests
 github.com/aliyun/alibaba-cloud-sdk-go/sdk/responses
 github.com/aliyun/alibaba-cloud-sdk-go/sdk/utils
 github.com/aliyun/alibaba-cloud-sdk-go/services/ecs
-# github.com/cuisongliu/sshcmd v1.4.1
+# github.com/cuisongliu/sshcmd v1.4.2
 github.com/cuisongliu/sshcmd/pkg/filesize
 github.com/cuisongliu/sshcmd/pkg/md5sum
 github.com/cuisongliu/sshcmd/pkg/sshutil