What ports need to be open for domain trust?
How can I create a domain trust through a firewall?
- PORT 135 (TCP or UDP) for Remote Procedure Call(RPC)Service.
- PORT 137 (UDP) for NetBIOS Name Service.
- PORT 138 (UDP) for NetBIOS datagram (Browsing)
- PORT 139 (TCP) for NetBIOS session (NET USE)
- ALL PORTS above 1024 for RPC Communication.
What ports are needed for Active Directory authentication?
AD uses the following ports to support user and computer authentication, according to the Active Directory and Active Directory Domain Services Port Requirements article:
- SMB over IP (Microsoft-DS): port 445 TCP, UDP.
- Kerberos: port 88 TCP, UDP.
- LDAP: port 389 UDP.
- DNS: port 53 TCP, UDP.
Is port 636 UDP or TCP?
Port 636 Details
| Port(s) | Protocol | Service |
|---|---|---|
| 636 | tcp,udp | |
| 636 | tcp,udp | ldaps |
| 636 | tcp | ldapssl |
| 636 | tcp,udp | ldaps |
Which port is used by DNS?
port 53
DNS has always been designed to use both UDP and TCP port 53 from the start 1 , with UDP being the default, and fall back to using TCP when it is unable to communicate on UDP, typically when the packet size is too large to push through in a single UDP packet.
Is SMB required for Active Directory?
To access an (administrative) share, SMB is needed. Workstations and domain member servers need the workstation service (also SMB) to access the domain controller to run logon scripts etc.
What port is 1720?
| Name: | h323hostcall |
|---|---|
| Purpose: | H.323 (Microsoft NetMeeting) call setup protocol |
| Description: | Port 1720 is used by the H.323 teleconferencing protocol (most commonly encountered in Microsoft NetMeeting) during call setup negotiation. |
| Related Ports: | 389, 1002 |
Is LDAP a TCP?
Protocol dependencies TCP/UDP: Typically, LDAP uses TCP or UDP (aka CLDAP) as its transport protocol. The well known TCP and UDP port for LDAP traffic is 389. SSL/TLS: LDAP can also be tunneled through SSL/TLS encrypted connections.
What is the main purpose of DNS server?
The most important function of DNS servers is the translation (resolution) of human-memorable domain names (example.com) and hostnames into the corresponding numeric Internet Protocol (IP) addresses (93.184.
Is DNS port 53 secure?
DNS is often poorly secured, and attacks can be profitable for attackers and cause widespread disruption. The DNS protocol – operating on UDP port 53 for normal requests – is used as a means of “tunnelling” through security systems to steal data.