j_security_check was not found on this server

[javaProgramer]

Hi all,

I have simple web application which use Form base authentication, it is running well on the local server however when I upload it to my space on remote server there is a mistake appears when I try to access to protected area.

message of error:

Not Found

The requested URL /ahmed/j_security_check was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

my web.xml:

<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    <security-constraint>
        <display-name>Constraint1</display-name>
        <web-resource-collection>
            <web-resource-name>secure</web-resource-name>
            <description/>
            <url-pattern>/pro/target.jsp</url-pattern>
        </web-resource-collection>
        <auth-constraint>
            <description/>
            <role-name>TEST</role-name>
        </auth-constraint>
    </security-constraint>
    <login-config>
        <auth-method>FORM</auth-method>
        <form-login-config>
            <form-login-page>/login.jsp</form-login-page>
            <form-error-page>/error.jsp</form-error-page>
        </form-login-config>
    </login-config>
    <security-role>
        <description/>
        <role-name>TEST</role-name>
    </security-role>
</web-app>

context.xml:

<Context antiJARLocking="true" path="/ahmed">
  
     <Realm  className="org.apache.catalina.realm.JDBCRealm"
             driverName="com.mysql.jdbc.Driver"
          connectionURL="jdbc:mysql://localhost/my_db_name"
         connectionName="user_name" connectionPassword="password"
              userTable="users" userNameCol="user_name" userCredCol="user_pass"
          userRoleTable="user_roles" roleNameCol="role_name" />
</Context>

any suggestions?