Is our firewall often will somebody atttack your XXX port? Is the port that if put out,does not have good accordingly not good?

Generally speaking, we use a few functions to turn over black software and firewall formidably to make sure our system is safe, the article plans to use a kind of simple and easy method -- inbreak illegally through restricting port to help everybody prevent-----How to shut a few port in the system, how to shut the acquiesce below WINDOWS to share C$ , D$ , Admin$ , IPC$ to wait a moment at the same time.

The means that inbreaks illegally

Say simply, the means that inbreaks illegally can divide roughly it is 4 kinds:

1, scanning port, score lead plane through foregone systematic Bug.

2, cultivate a trojan, the back door that uses trojan open up enters lead plane.

3, the method that uses data to spill over, force lead plane to offer back door to enter lead plane.

4, the loophole that uses certain software design, lead plane of direct or indirect control.

The main way that inbreaks illegally is before two kinds, use the hacker tool of a few popularity especially, the situation that atttacks lead plane through the first kind of means is the most, most general also; And for two kinds of means after be opposite, only excellent hacker just uses a few methods, affect the range is not wide, and want these two kinds of problems to appear only, software serves business to be able to supply a patch very quickly, seasonable rehabilitate system.

Accordingly, if can restrict before two kinds,inbreak illegally means, inbreak illegally with respect to what can prevent effectively to use hacker tool. And before two kinds inbreak illegally means has to be nodded jointly, enter lead plane through port namely.

Port resembles a house (server) a few doors are same, different door leads to different room (the different service that the server provides) . Our commonly used FTP acquiescent port is 21, and WWW webpage acquiesces commonly port is 80. But a little careless network manager often opens a few port that are invaded easily to serve, for instance 139 wait; Still have program of a few trojans, for instance glacial, BO, wide outside etc is automatic open up your unware port. So, the port that wants us not to use our only blocks entirely rise, did not put an end to these two kinds to inbreak illegally?

The port that citing shuts here has, 135, 137, 138, 139, 445, 1025, 2475, 3127, 6129, 3389, 593, still have TCP, other I did not point out one by one.

Particular operation is as follows:

Below acquiescent circumstance, it is open that Windows has a lot of port, when you get online, network virus and hacker can hook up through these port your computer. Turn into to allow your system impregnable fortress, should close these port, basically have: TCP 135, 139, 445, 593, 1025 port and UDP 135, 137, 138, 445 port, the postern port with a few poisonous epidemic (be like TCP 2745, 3127, 6129 port) , and long-distance service visits port 3389. Introduce how to shut these network port below WinXP/2000/2003 below.
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