diff --git a/pkg/compute/models/hosts.go b/pkg/compute/models/hosts.go
index d9684f7735..177ef3bc93 100644
--- a/pkg/compute/models/hosts.go
+++ b/pkg/compute/models/hosts.go
@@ -18,6 +18,7 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"net"
 	"net/http"
 	"net/url"
 	"sort"
@@ -1364,7 +1365,8 @@ func (hh *SHost) GetFetchUrl(disableHttps bool) string {
 			port = 80
 		}
 	}
-	return fmt.Sprintf("%s://%s:%d", managerUrl.Scheme, strings.Split(managerUrl.Host, ":")[0], port+40000)
+
+	return fmt.Sprintf("%s://%s", managerUrl.Scheme, net.JoinHostPort(managerUrl.Hostname(), strconv.Itoa(port+40000)))
 }
 
 func (hh *SHost) GetAttachedEnabledHostStorages(storageType []string) []SStorage {
diff --git a/pkg/hostimage/nbd.go b/pkg/hostimage/nbd.go
index 182dd83cff..68e077537b 100644
--- a/pkg/hostimage/nbd.go
+++ b/pkg/hostimage/nbd.go
@@ -104,14 +104,14 @@ func (m *SNbdExportManager) QemuNbdStartExport(imageInfo qemuimg.SImageInfo, dis
 	if imageInfo.Encrypted() {
 		cmd = []string{
 			qemutils.GetQemuNbd(),
-			"--read-only", "--persistent", "-x", diskId, "-p", strconv.Itoa(nbdPort),
+			"--read-only", "--persistent", "-x", diskId, "-b", "::", "-p", strconv.Itoa(nbdPort),
 			"--object", imageInfo.SecretOptions(),
 			"--image-opts", imageInfo.ImageOptions(),
 		}
 	} else {
 		cmd = []string{
 			qemutils.GetQemuNbd(),
-			"--read-only", "--persistent", "-x", diskId, "-p", strconv.Itoa(nbdPort),
+			"--read-only", "--persistent", "-x", diskId, "-b", "::", "-p", strconv.Itoa(nbdPort),
 			imageInfo.Path,
 		}
 	}
diff --git a/pkg/hostman/diskutils/qemu_kvm/driver.go b/pkg/hostman/diskutils/qemu_kvm/driver.go
index cfdca14327..a420d6942f 100644
--- a/pkg/hostman/diskutils/qemu_kvm/driver.go
+++ b/pkg/hostman/diskutils/qemu_kvm/driver.go
@@ -660,7 +660,7 @@ func (d *QemuBaseDriver) startCmds(
 		disksPath = []string{imageInfo.Path}
 	}
 	for i, diskPath := range disksPath {
-		diskDrive := __("-drive file=%s,if=none,id=drive_%d,cache=none", diskPath, i)
+		diskDrive := __("-drive file=%s,if=none,id=drive_%d,cache=none", strings.ReplaceAll(diskPath, "\\", "\\\\"), i)
 		if imageInfo.Format != qemuimgfmt.RAW && imageInfo.Encrypted() {
 			diskDrive += ",encrypt.format=luks,encrypt.key-secret=sec0"
 		}
diff --git a/pkg/hostman/storageman/disk_local.go b/pkg/hostman/storageman/disk_local.go
index f898574cba..4ef8a55b7f 100644
--- a/pkg/hostman/storageman/disk_local.go
+++ b/pkg/hostman/storageman/disk_local.go
@@ -18,8 +18,10 @@ import (
 	"context"
 	"fmt"
 	"io/ioutil"
+	"net"
 	"os"
 	"path"
+	"strconv"
 	"strings"
 
 	"yunion.io/x/cloudmux/pkg/cloudprovider"
@@ -234,7 +236,8 @@ func (d *SLocalDisk) CreateFromRemoteHostImage(ctx context.Context, url string,
 		return errors.Wrap(err, "RequestExportNbdImage")
 	}
 	remoteHostIp := netutils2.ParseIpFromUrl(url)
-	nbdImagePath := fmt.Sprintf("nbd://%s:%d/%s", remoteHostIp, nbdPort, d.GetId())
+	remoteHostAndPort := net.JoinHostPort(remoteHostIp, strconv.Itoa(int(nbdPort)))
+	nbdImagePath := fmt.Sprintf("nbd://%s/%s", remoteHostAndPort, d.GetId())
 	log.Infof("remote nbd image exported %s", nbdImagePath)
 
 	newImg, err := qemuimg.NewQemuImage(d.getPath())
diff --git a/pkg/hostman/storageman/disk_lvm.go b/pkg/hostman/storageman/disk_lvm.go
index edfbf2a88d..6b9be9d305 100644
--- a/pkg/hostman/storageman/disk_lvm.go
+++ b/pkg/hostman/storageman/disk_lvm.go
@@ -17,7 +17,9 @@ package storageman
 import (
 	"context"
 	"fmt"
+	"net"
 	"path"
+	"strconv"
 	"strings"
 
 	"yunion.io/x/cloudmux/pkg/cloudprovider"
@@ -184,7 +186,8 @@ func (d *SLVMDisk) CreateFromRemoteHostImage(ctx context.Context, url string, si
 	log.Infof("Create from remote host image %s", url)
 	nbdPort, err := d.RequestExportNbdImage(ctx, url, encryptInfo)
 	remoteHostIp := netutils2.ParseIpFromUrl(url)
-	nbdImagePath := fmt.Sprintf("nbd://%s:%d/%s", remoteHostIp, nbdPort, d.GetId())
+	remoteHostAndPort := net.JoinHostPort(remoteHostIp, strconv.Itoa(int(nbdPort)))
+	nbdImagePath := fmt.Sprintf("nbd://%s/%s", remoteHostAndPort, d.GetId())
 	log.Infof("remote nbd image exported %s", nbdImagePath)
 
 	newImg, err := qemuimg.NewQemuImage(d.GetPath())
diff --git a/pkg/util/cephutils/ceph.go b/pkg/util/cephutils/ceph.go
index 1bfca89720..2266a24106 100644
--- a/pkg/util/cephutils/ceph.go
+++ b/pkg/util/cephutils/ceph.go
@@ -291,6 +291,13 @@ keyring = %s
 
 func CephConfString(monHost, key string, radosMonOpTimeout, radosOsdOpTimeout, clientMountTimeout int64) string {
 	conf := []string{}
+	monHosts := strings.Split(monHost, ",")
+	for i := range monHosts {
+		if strings.Contains(monHosts[i], ":") {
+			monHosts[i] = `\[` + strings.ReplaceAll(monHosts[i], ":", `\:`) + `\]`
+		}
+	}
+	monHost = strings.Join(monHosts, ",")
 	conf = append(conf, "mon_host="+strings.ReplaceAll(monHost, ",", `\;`))
 	if len(key) > 0 {
 		for _, k := range []string{":", "@", "="} {