Today, firewalls, like anti-virus software, are an essential tool for us to go online. However, all kinds of advertisements on the Internet are always confusing. Fortunately, Windows XP system provides a firewall function for better network security management. As long as you use this function skillfully, you can allow or deny network information according to actual needs, thus preventing attacks and protecting network security. The purpose, what are you waiting for? Hurry and experience.
Lock the firewall, beware of destruction
In the office where multiple people share a computer, each user can open the firewall property setting window at will. When the security parameters of the firewall are adjusted indiscriminately, the security protection capability of the local computer will be greatly severe, and if it is serious, the local computer cannot access the Internet. In order to prevent the local system firewall parameters from being corrupted, we can follow the steps below to lock the firewall property setting window to prevent others from adjusting the firewall parameters:
First click on the workstation system desktop and click “Start”. /“Run” menu option, and execute the string command “gpedit.msc” in the text box that pops up to enter the group policy editing interface of the local workstation system;
secondly in the editing interface In the side display pane, use the mouse to expand the "Computer Configuration" project branch, and then under the branch "Administrative Templates", ", Network", "Network Connections", “ Windows Firewall ”, “Standard Profiles”options are selected in turn, and in the right pane of the “Standard Profiles” option, double-click on the "Windows Firewall: Protect All Network Connections" policy. Go to the target policy property setting interface;
look at the interface in the Windows Firewall: Protect all network connections> The policy is currently in the "Allowed" setting state. If the policy is found to have been activated, then we must select the "Disabled" option in the future and click "Delete". Button, so ordinary users can not adjust the security parameters in the firewall property settings interface.
Recovering the firewall, troubleshooting
In order to make the firewall work in a targeted manner, we often need to set the parameters appropriately, but sometimes we try to open the firewall parameter setting interface and find that the firewall function can not be enabled. When this happens, most of the system files related to the firewall in the workstation system are damaged. In order to make the firewall work again, we must restore it according to the following steps:
Firstly execute in the Windows system desktop. “Start”,"Run” command, from the pop-up system run box, enter the string command “cmd”, click the "OK" button to switch the system running state to MS-DOS command Line state;
Secondly in the command line of the MS-DOS working window, execute the "Rundll32 setupapi, InstallHinfSection Ndi-Steelhead 132 %windir%\\inf\ etrass.inf” string command, after the command is successfully run Then restart the computer system;
Next enter the MS-DOS working window again, then enter the string command "netsh firewall reset" in the DOS command line, click the Enter key, the damaged The working state of the Windows firewall can be restored to the previous default state; after that, we can reopen the property setting interface of the firewall to each of them. Parameters are set in a targeted manner.
Tip: In the MS-DOS work window, we can skillfully manage some firewalls by using some of the network commands that come with the Windows system. For example, if you want to centrally view the various setting parameters of the firewall, we only need to execute the string command “ ldquo; netsh firewall show config” in the DOS command line. In this case, the Windows system will automatically list the firewall configuration information. In this way, we can see the configuration information of the firewall at a glance; if we want to temporarily disable the firewall function of the workstation system, simply execute the string command in the DOS command. “netsh firewall set opmode mode =disable” It's fine, without having to open the firewall parameter settings interface first, which will increase productivity.