ENHANCEMENT OF LOGIN PROCESS MULTI-SERVER CONMMNICATION FOR MULTIMEDIA CONFERENCING SYSTEM (MCS) USING DISTRIBUTED LIGHTWEIGHT DIRECTORY ACCESS PROTOCOL (LDAP
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Date
2010-05
Authors
ABU SALEH, MOHAMMAD ABDELMO'TI
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Abstract
Video conferencing systems are rapidly growing and spreading through
various computing areas due to their benefits in efficiently producing communication
. between people from just about many different locations all over the world. One of
the systems that is widely being used in Malaysia is the Multimedia Conferencing
System (MCS). In ordinary cases, MCS users need to know the address of the server
they have account on to be able to login and use the system. If that particular server
is down or off-line users need to have a different account on a different MCS server
to be able to use the system. Moreover, MCS user's information (including user
name and password) is not secured since it is saved as text in the MCS server.
Consequently, we propose a new entity to be added in the MCS system, which is the
LDAP server and directory. By using the centralized LDAP server for multiple MCS
servers and redesigning the MCS server to communicate with LDAP, users can
easily login through any server since their database will be located at the LDAP
server and can securely be accessed from any other connected user of the MCS
servers. LDAP does more than just providing authentications to users. On the other
hand, the new MCS server design speeds up the invitations among users where they
can discover each other faster based on the usage of the LDAP query and the use of
distributed LDAP servers to distribute the load between Multiple LDAP servers. As a
XV
result, our approach proved that the time taken for the invitation process was less
than that time taken through the old system. In short, the results consist ofthree tests
where each test involves three scenarios. In the first test, the results showed that the
speed was 17% faster when using MCS with One-LDAP instead of using the same
MCS with the reflector. In the second test, the results showed that the speed was 25%
faster when using MCS with Two-LDAP instead of using the same MCS with the
reflector. In the third tests, the results showed that the speed was 33% faster when
using MCS with Three-LDAP instead of using the same MCS with the reflector.
Moreover, the proposed system supported some security measurements in term of
centr:alization risk and authentication of "log in" for MCS. The results showed that,
the new security measurement supported a secured "log in" access for MCS in a 75%
more than the support of the previous security measurement.
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Keywords
ENHANCEMENT OF LOGIN PROCESS MULTI-SERVER