Remote-access Guide

ports to use for remote access

by Andrew O'Kon MD Published 2 years ago Updated 1 year ago
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Ports Required

Port Purpose Type Connection
8020 Web-server port - Non-SSL TCP Inbound to server
8383 Web-server port - SSL TCP Inbound to server
8027 Notification Server TCP Inbound to server
8443 Remote Control - SSL TCP & UDP In bound to server
Aug 5 2022

Remote Desktop Protocol (RDP) is a Microsoft proprietary protocol that enables remote connections to other computers, typically over TCP port 3389. It provides network access for a remote user over an encrypted channel.

Full Answer

How to check remote IP and port is available?

We recommend NetStat, as you won’t have to download new software for this:

  • Run Command Prompt as administrator.
  • Run this command: “netstat -ab” and hit enter.
  • Wait for the results to load. Port names will be listed next to the local IP address.
  • Just look for the port number you need, in this case 3306. You can press Ctrl + F and type “3306” in the word box. ...

How to setup remote access?

Once installed, you can now connect to remote endpoints by following the steps below:

  • The software needs to be downloaded on both the local and remote computers.
  • Open the software on both the local and remote computers.
  • Write down the ITarian ID number and password of the remote computer.
  • Click “Start Connection.”
  • Enter the ID number and password of the remote computer.
  • Click “Connect.”

More items...

How to set the custom port for MSSQL remote access?

How to Set the Custom Port for MSSQL Remote Access? To assign a TCP/IP port number to the SQL Server Database Engine follow the steps below: STEP 1: Open the SQL Server Management Studio and login to your Database locally. STEP 2: Right-click on the server name in the left panel and select Properties. STEP 3: Select the Connections page on the ...

What ports are required for RDP?

  • TCP: <WMI Fixed Port>
  • TCP 5504: connection to RD Connection Broker for centralized publishing
  • TCP 5985: WMI and PowerShell Remoting for administration

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What port must be open for remote desktop?

Simply put, the default port for using the Remote Desktop Protocol is 3389. This port should be open through Windows Firewall to make it RDP accessible within the local area network.

Is UDP 3389 needed for RDP?

Remote Desktop requires TCP port 3389 to be open. Also, opening UDP port 3389 enables acceleration since RDP 8.0. It is possible to change the port used by the terminal server (or PC which is accessed), see this Microsoft support article: How to change the listening port for Remote Desktop.

Can I use any port for remote desktop?

You can use any port that's not already in use on your computer; your choice. To get a list of ports currently being used (listening), you can use Netstat -a at a command prompt.

What port is 3389 used for?

Port 3389 is used to enable users to access remote computers. While in most cases this access is legitimate and approved by the owner of the physical machine, there are also port 3389 vulnerabilities that make it critical to limit access.

Is RDP using TCP or UDP?

Remote Desktop Protocol (RDP) is a Microsoft proprietary protocol that enables remote connections to other computers, typically over TCP port 3389. It provides network access for a remote user over an encrypted channel.

What is the port 443 used for?

Port 443 is a virtual port that computers use to divert network traffic. Billions of people across the globe use it every single day. Any web search you make, your computer connects with a server that hosts that information and fetches it for you. This connection is made via a port – either HTTPS or HTTP port.

Does RDP use port 443?

To access your server via RDP on port 443, you either have to use RRAS to redirect port 3389 traffic to port 443 or reconfigure Terminal Services to use port 443 instead of port 3389.

What is the port 143?

IMAP serverAn IMAP server typically listens on port number 143. IMAP over SSL/TLS (IMAPS) is assigned the port number 993. Virtually all modern e-mail clients and servers support IMAP, which along with the earlier POP3 (Post Office Protocol) are the two most prevalent standard protocols for email retrieval.

Is it safe to open port 3389?

RDP should never be open to the Internet. The internet is continuously being scanned for open port 3389 (the default RDP port). Even with a complex password policy and multi-factor authentication you can be vulnerable to denial of service and user account lockout.

What is 445 port used for?

Port 445 is a traditional Microsoft networking port with tie-ins to the original NetBIOS service found in earlier versions of Windows OSes. Today, port 445 is used by Microsoft Directory Services for Active Directory (AD) and for the Server Message Block (SMB) protocol over TCP/IP.

What is 1433 port used for?

Port 1433 for TCP is needed to connect to the SQL database instance. By default, SQL will attempt to use 1433. If that port is unavailable, it will automatically choose another port.

What port number is 8080?

Port number 8080 is usually used for web servers. When a port number is added to the end of the domain name, it drives traffic to the web server. However, users can not reserve port 8080 for secondary web servers.

How do I enable RDP port 3389?

Step 2: Open Remote Desktop port (port 3389) in Windows firewall. Go into the control panel in your computer and then into 'System and security' and then into 'Windows Firewall'. Click 'Advanced settings' on the left side. Ensure that 'Inbound Rules' for Remote Desktop is 'Enabled'.

Should I open port 3389?

RDP should never be open to the Internet. The internet is continuously being scanned for open port 3389 (the default RDP port). Even with a complex password policy and multi-factor authentication you can be vulnerable to denial of service and user account lockout.

Does RDP use port 443?

To access your server via RDP on port 443, you either have to use RRAS to redirect port 3389 traffic to port 443 or reconfigure Terminal Services to use port 443 instead of port 3389.

What port does RDP use Windows 10?

port 3389Specifically, port 3389 is used by default for remote connections.

How to allow remote desktop access to local network?

If you want to allow Remote Desktop on the local network only, check the checkbox labeled Private. If you want it publicly available, you should check the Public checkbox too.

Which port should be forwarded through the main Internet router?

If you want to make it accessible over the Internet (which is not safe), the RDP port should be forwarded through the main Internet router to work properly. Let’s talk about how to open port 3389 in Windows Firewall and the router. [toc]

What is RDP protocol?

Remote Desktop Protocol (RDP) is a proprietary protocol developed by Microsoft to remotely connect to a Windows system using a graphical user interface. RDP is built into Windows by default. RDP listens on TCP port 3389 and udp port 3389. Previously, the RDP software was called Terminal Services client but now it’s called Remote Desktop Connection.

What is RDP client?

Previously, the RDP software was called Terminal Services client but now it’s called Remote Desktop Connection. Windows comes with a remote desktop client that can be used to access the complete Windows Desktop environment remotely. It’s very useful for people who use multiple computers for work.

What port is open and listening?

Check if port 3389 is open and listening. There are times when you successfully open the RDP port but you’re unable to connect to the computer remotely. In that case, make sure that you are able to access port 3389 (or any other port if you have changed it) remotely.

How to open Remote Desktop Connection client?

You can open the Remote Desktop Connection client by going to Run –> mstsc.

Is it safe to use RDP port 3389?

If you are opening RDP over the Internet, keeping the RDP port to 3389 is a security threat. It is recommended that you change the default port from 3389 to something above 10000. I, normally, keep it between 30000 and 40000 which is relatively safe as the port scanners will start scanning from port 1.

What port does Remote Utilities use?

When you enable Internet-ID connection type, the program connects through our company-hosted server by default. Remote Utilities uses a single outbound TCP port 5655 to communicate with our public server. If this port is blocked, the program automatically attempts to use outbound TCP port 443.

What to do if port 5650 is not used?

If port 5650 cannot be used for some reason, you can change it to a different value in the Host settings. If you changed the port on the Host side, remember to also update the port in the corresponding connection properties on the Viewer side.

What is direct connection?

Direct connection. A direct connection is possible when the Host is in direct visibility to the Viewer, i.e. the Host can be addressed by its IP address or hostname (DNS name). This connection type does not require any intermediary (relay) servers in-between Viewer and Host and is by definition the fastest way to access a remote Host.

What is a RU server?

Remote Utilities Server (RU Server) is self-hosted server software that you can install on your premises. You can set up RU Server to perform the following roles:

Can you replace a public server with a self hosted RU server?

With a bit of configuration you can replace our public server with a self-hosted RU Server by which to route your Internet-ID connections. This makes your remote support solution completely autonomous and no longer dependent on our company infrastructure.

What port does Remote Access Plus use?

Use the below links to find the steps to configure the ports. Remote Access Plus uses the port 7020 (http) or 7373 (https) to enable agent-server communication and access web console.

What is the port number for Remote Access Plus?

Notification server uses the port number 7027 in default. If you want to configure the Notification Server to communicate through some other port, follow the below steps.

Does Changing the Remote Access Plus default port affect the agent-server communication?

Important : Changing the Remote Access Plus default web-server port will have an impact on the agent-server communication. Ensure to update the correct port number in all the Remote Access Plus agents. If this is not done, all the Remote Access Plus agents will keep trying to reach the server using the outmoded port number and will have an impact all the troubleshooting activities using Remote Access Plus.

Can you access Remote Access Plus using a port?

You can now access your Remote Access Plus server using the newly configured port. However, updating the newly configured port to the agents is mandatory for the agent-server communication to be seamless.

What does it mean when you connect to a remote desktop?

When you connect to your PC by using a Remote Desktop client, you're creating a peer-to-peer connection. This means you need direct access to the PC (some times called "the host"). If you need to connect to your PC from outside of the network your PC is running on, you need to enable that access. You have a couple of options: use port forwarding or set up a VPN.

How to enable port forwarding on router?

Enable port forwarding on your router. Port forwarding simply maps the port on your router's IP address (your public IP) to the port and IP address of the PC you want to access. Specific steps for enabling port forwarding depend on the router you're using, so you'll need to search online for your router's instructions.

What does it mean to connect to a PC from outside?

This means you need direct access to the PC (sometimes called "the host"). If you need to connect to your PC from outside of the network your PC is running on, you need to enable that access. You have a couple of options: use port forwarding or set up a VPN.

Where can I find my router's IP address?

Your public IP address (the router's IP). There are many ways to find this - you can search (in Bing or Google) for "my IP" or view the Wi-Fi network properties (for Windows 10).

Can RD client access PC?

Instead, when you connect to the VPN, your RD client acts like it's part of the same network and be able to access your PC. There are a number of VPN services available - you can find and use whichever works best for you.

What port is used for remote desktop?

173. Remote Desktop requires TCP port 3389 to be open. It is possible to change the port used by the terminal server (or PC which is accessed), see this Microsoft support article: "How to change the listening port for Remote Desktop". Share. Improve this answer.

What port does a router use to forward a SSH connection?

Use your router as a jump server and create a SSH port forward. Your router's sshd listens on 22 port for LAN network. it also listens on port A for WAN network (the only one exposed), with only public-key authentication, so no brute force password attempts.

What port does a WAN server listen to?

it also listens on port A for WAN network (the only one exposed), with only public-key authentication, so no brute force password attempts. You should open TCP and UDP 3389 (unless you specified a custom port). While the accepted answer (only TCP 3389) used to be correct at the time, it is no longer up to date.

Can you change the port number on a terminal server?

It is possible to change the port used by the terminal server (or PC which is accessed), see this Microsoft support article: How to change the listening port for Remote Desktop. The UDP port for accelerated connection uses the same port number as the TCP setting and cannot be changed separately.

What does it mean when a port is closed?

If you receive “ Could not open connection ” or a blank screen with blinking cursor, this means the port is closed. If you receive “ Connection to host lost “, this means that the port is open but the host is not accepting new connections.

What is portqry used for?

Portqry used to be the command of choice for checking remote ports being alive and listening but it was only available up till Windows XP and Windows Server 2003.

What port is used to host the portal page without the user having to type HTTPS?

Used to host the portal page without the user having to type HTTPS. The traffic can be automatically rolled over to port 443.

What port is the B series appliance on?

You can optionally enable access from the B Series Appliance on port 443 to this host for automatic updates, or you can apply updates manually. Access NTP server and sync the time. Access LDAP server and authenticate users. Access LDAP server and authenticate users via SSL.

What is access DNS server?

Access DNS server to verify that a DNS A record or CNAME record points to the B Series Appliance.

What port is syslog on?

Alternatively, messages can be sent to a syslog server located within the DMZ. Syslog - TCP Port 6514. Used to send syslog messages over TLS to a syslog server in the internal network.

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