FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

WHAT IS A FIREWALL IN NETWORK SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
LDAP is on port
A
389
B
3389
C
1433
D
220
Explanation: 

Detailed explanation-1: -LDAP TCP and UDP port 389 is used for Directory, Replication, User and Computer Authentication, Group Policy, Trusts. As you mentioned, we could not block port 389 on AD. For LDAPs (LDAP SSL), TCP 636 is used for Directory, Replication, User and Computer Authentication, Group Policy, Trusts.

Detailed explanation-2: -The default port for LDAP is port 389, but LDAPS uses port 636 and establishes TLS/SSL upon connecting with a client.

Detailed explanation-3: -Port 389 is used for TLS connections; TLS establishes a non encrypted connection on port 389 that it ‘upgrades’ to an encrypted TLS connection as the initial connection proceeds. This allows unencrypted and encrypted connections to be setup and handled by this one port.

Detailed explanation-4: -LDAP is an application layer protocol that uses port 389 via TCP or user datagram protocol (UDP).

Detailed explanation-5: -The standard port for LDAP communication is 389, although other ports can be used. For example, if you must be able to start the server as a regular user, use an unprivileged port, by default 1389.

There is 1 question to complete.