Let your computer never be attacked

Settings, so your computer will never be attacked!!!

The most straightforward way is to turn off the ports that are not used by the system, and then start it again. Note: The ports that are closed are 135, 137, 138, 139, 445, 1025, 2475, 3127, 6129, 3389, 593, and tcp. The specific operations are as follows: By default, Windows has many ports that are open, in your When surfing the Internet, network viruses and hackers can connect to your computer through these ports. In order to make your system into a wall, you should close these ports, mainly: TCP 135, 139, 445, 593, 1025 ports and UDP 135, 137, 138, 445 ports, some popular virus backdoor ports (such as TCP 2745, 3127, 6129 ports), and remote service access port 3389. Here's how to turn off these network ports under WinXP/2000/2003: First, click “Start”Menu/Settings/Control Panel/Administrator Tools, double-click to open “Local Security Policy>, select “IP Security Strategy, on the local computer, right click on the blank space in the right pane, pop up the shortcut menu, select "Create IP Security Policy", and a wizard will pop up. Click the “Next” button in the wizard to name the new security policy; press “Next”, then display the "secure communication request" screen, and activate the default rule on the screen “ The hook on the left is removed, and clicking the “Complete" button creates a new IP security policy. In the second step, right-click the IP security policy, in the “Properties” dialog box, remove the hook on the left side of the “Add Wizard” and click the “Add” button to add a new rule, then pop up. “New Rule Attributes” dialog box, click the “Add” button on the screen to pop up the IP Filter List window; in the list, first remove the hook on the left side of the Add Wizard & rdquo; and then click on the right Add a new filter to the "Add" button. The third step, enter the "Filter Properties" dialog box, the first thing to see is the addressing, the source address is selected "any IP address", the target address is selected "My IP address"; click "“ agreement ” tab, select “TCP” in the drop-down list of "Select protocol type", and then enter “135” in the text box under "To this port", click the "OK" button This adds a filter that blocks the TCP135 (RPC) port, which prevents the outside world from connecting to your computer via port 135. Click “OK" to return to the filter list dialog box, you can see that a policy has been added, repeat the above steps to continue adding TCP ports 137, 139, 445, 593 and UDP ports 135, 139, 445 for them Create the appropriate filter. Repeat the above steps to add the masking policies for TCP1025, 2745, 3127, 6129, and 3389 ports, set up the filter for the above ports, and finally click the “OK” button. In the fourth step, in the “New Rule Attributes” dialog box, select “New IP Filter List”, then click on the circle to the left to add a dot to indicate that it has been activated, and finally click & ldquo;Filter Action&rdquo ;Tab. In the "Filter Actions" tab, remove the "Use Add Wizard" hook on the left side, click the "Add" button, and add “ Block & rdquo; Action: In “New Filter Action Properties&rdquo In the "Security Measures" tab, select “block”, then click the “OK” button. Step 5, enter the “New Rule Attributes” dialog box, click ““New Filter Action”, the circle on the left side will add a dot to indicate that it has been activated, click the “Close” button to close the dialog box. Finally, return to the “New IP Security Policy Attributes” dialog box, check the left side of the “New IP Filter List” and press the “OK” button to close the dialog box. In the "Local Security Policy" window, right-click on the newly added IP Security Policy and select “ Assign”. So after rebooting, the above network ports in the computer are turned off, and viruses and hackers can no longer connect to these ports, thus protecting your computer.