diff --git a/internal/pkg/impl/xosuser.go b/internal/pkg/impl/xosuser.go
new file mode 100644
index 0000000..77a9367
--- /dev/null
+++ b/internal/pkg/impl/xosuser.go
@@ -0,0 +1,96 @@
+/*
+ Copyright 2017 the original author or authors.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+package impl
+
+import (
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net"
+	"net/http"
+	"strings"
+
+	"gerrit.opencord.org/abstract-olt/internal/pkg/settings"
+	"gerrit.opencord.org/abstract-olt/models"
+)
+
+/*
+ChangeXOSUserPassword - allows update of xos credentials
+*/
+func ChangeXOSUserPassword(clli string, xosUser string, xosPassword string) (bool, error) {
+	myChan := getSyncChannel()
+	<-myChan
+	defer done(myChan, true)
+	chassisMap := models.GetChassisMap()
+	chassisHolder := (*chassisMap)[clli]
+	if chassisHolder == nil {
+		errString := fmt.Sprintf("There is no chassis with CLLI of %s", clli)
+		return false, errors.New(errString)
+	}
+	xosIP := chassisHolder.PhysicalChassis.XOSAddress.IP
+	xosPort := chassisHolder.PhysicalChassis.XOSAddress.Port
+	loginWorked := testLogin(xosUser, xosPassword, xosIP, xosPort)
+	if !loginWorked {
+		return false, errors.New("Unable to validate login when changing password")
+	}
+
+	chassisHolder.PhysicalChassis.XOSUser = xosUser
+	chassisHolder.PhysicalChassis.XOSPassword = xosPassword
+	isDirty = true
+	return true, nil
+
+}
+
+func testLogin(xosUser string, xosPassword string, xosIP net.IP, xosPort int) bool {
+	if settings.GetDummy() {
+		return true
+	}
+	var dummyYaml = `
+tosca_definitions_version: tosca_simple_yaml_1_0
+imports:
+  - custom_types/site.yaml
+description: anything
+topology_template:
+  node_templates:
+    mysite:
+      type: tosca.nodes.Site
+      properties:
+        must-exist: true
+        name: mysite
+`
+	client := &http.Client{}
+	requestList := fmt.Sprintf("http://%s:%d/run", xosIP, xosPort)
+	req, err := http.NewRequest("POST", requestList, strings.NewReader(dummyYaml))
+	req.Header.Add("xos-username", xosUser)
+	req.Header.Add("xos-password", xosPassword)
+	resp, err := client.Do(req)
+	log.Printf("testLogin resp:%v", resp)
+	if err != nil {
+		log.Printf("Unable to validate XOS Login Information %v", err)
+		return false
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusOK {
+		bodyBytes, _ := ioutil.ReadAll(resp.Body)
+		bodyString := string(bodyBytes)
+		fmt.Println(bodyString)
+		return true
+	}
+	return false
+
+}