Anyone who has used windows Remote Desktop knows that 3389 is the default port number of Remote Desktop. If this port is mapped in the router, it will greatly increase the risk of the server. Can I modify port 3389? Let me talk about the modification method. (Take win 10 system as an example)
1. Click Start-Run and enter regedit to enter the command prompt.
2. Look up HKEY_LOCAL_MACHINE's current control setting control terminal server wdscurentcontro 1 setting terminal server WinStations\RDP-Tcp, find the port number, and change the value to the same as above.
4. Click "Start"-"Run", enter services.msc, open the service, find the remote desktop service, and restart the service.
5. Find a computer access test on the local area network.
Although changing the port can greatly prevent the server from being attacked, mapping the port in the router will increase the security risk.
Customers with high security requirements can use the fast parsing NAT mobile version and mapping port in the software.
You can access the external network through the domain name virtual port, and you don't need to map the port in the router.
How to open the port and 3389 port of the local remote desktop?
Port 3389 is the service port of Windows2000(2003) server remote desktop. You can use connection tools such as Remote Desktop to connect to a remote server through this port. If connected, please enter the user name and password of the system administrator.
It will be possible to operate a remote computer like a local computer, so the remote server will usually modify or close the value of this port.
Start port 3389 in Winxp/2003 system:
1, click the control panel, find the management tools, and then find the service.
2. Click on the service and find the following four items in the background service list:
NetMeetingRemoteDesktopSharing
RemoteDesktopHelpSessionManager
terminal service
terminalservicessessionddirectory
3. Set the background services of the above four items to start, and port 3389 will be started.
When working in the company, use Remote Desktop to connect your home computer. Both sides of the remote desktop connection need to be in the same network, such as the same LAN or the same Internet. You can't directly control computers in another LAN from the Internet. If you want to access, you need to map the ports on the router or firewall.
But you can use computers in the local area network to control computers on the Internet. Therefore, if the controlled computer uses ADSL dial-up network to access the Internet, the IP address required by the remote desktop is the Internet IP address obtained after dialing, not the LAN IP address set by itself.
How to set the user name and password of windowssever2003?
Right-click my computer-> Management->; Local users and groups->; User-> Right-click to create a new user-> enter a user name and password, and click Create!
Install IIS version 6.0
Establish FTP storage files, such as D:wwwroot56drwwwroot.
Right-click the website-> Select Add FTP Site-> You can fill in the description according to your own needs-> The address is usually your own IP address, and the default port is 21->; The physical path points to "Dr. d:wwwroot 56 wwwroot"->; Access rights should be marked with "read" and "write"->; Click Finish to create the uploaded service.
Grant read and write permissions to this directory.
How to use the port?
Purpose of the port: The port is the outlet for the equipment to communicate with the outside world.
Ports can be divided into virtual ports and physical ports.
Virtual port refers to the port inside the computer or the switch router, which is invisible.
Physical ports, also known as interfaces, are visible ports, RJ45 network ports on the computer backplane and RJ45 ports, such as switch router hubs. Phones using RJ 1 1 jack also belong to the category of physical ports.
The role of the port:
The role in the invasion
Someone once compared the server to a house and the port to a door leading to different rooms (services), which is a good metaphor if details are not considered. If an intruder wants to occupy the house, he will definitely break into the house (physical invasion is another word), so it is very important for the intruder to know how many doors the house has opened, what kind of doors it is and what is behind them.
Intruders usually use scanners to scan the ports of the target host to determine which ports are open. From the open port, intruders can know what services the target host provides, and then guess the possible vulnerabilities. Therefore, scanning ports can help us better understand the target host. For administrators, scanning the open ports of this machine is also the first step to do a good job of security prevention.
How to modify the default home page and port of IIS server?
For windows2003 system, click Start on the desktop and find Internet Information Service Manager (IIS) under administrative tools. 2 Click to expand Internet Information Services. Right-click Website and select the Properties option.
3 Select the "Document" option in the pop-up "Website Properties" window. Check "Enable Default Content Document" and click "Add" to add the default home page address of the website. When there are multiple default home pages, the higher the configuration, the higher the priority. END Modify the default port 80.
1 If you want to modify the default port 80 of IIS, it is also very simple. Again, click on "Internet Information Service" and then launch "Website". Right-click the default Web site and select the Properties option.
Then you can find the TCP port in the "Default Website Properties" window that pops up. Enter the port number to modify, save and restart IIS.
How to open the port 139 on the windowsserver2003 command line?
The way to open the 139 port is to select the Internet Protocol (TCP/IP) attribute in the local connection in the network and dial-up connection, and enter the advanced TCP/IP settings and WINS settings. There is an item "NETBIOS with TCP/IP enabled", and check to open the 139 port.