Change big logo on JSPUI interface

Here is the position of Dspace big logo on JSPUI interface.

Prepare a logo and place on image folder in web apps folder, e.g. /dspace/webapps/jspui/image 

Place logo file in home folder and copy to /dspace/webapps/jspui/image

sudo su
cp mylogo.png /dspace/webapps/jspui/image

Open header-default.jsp file and make changes.

leafpad /dspace/webapps/jspui/layout/header-default.jsp

Find following line number 154(Aproximate),

<div class="col-md-3"><img class="pull-right" src="<%= request.getContextPath() %>/image/logo.gif" alt="DSpace logo" /> 

Change the logo name (logo.gif). Save and close the file.
Refresh the Dspace JSPUI home page.