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The computers in the 172.16.4.0/24 network segment are servers, and we protect these servers from the virus attacks from the 172.16.3.0 network segment via reverse ACL settings.Configuration instance: Prohibit virus from 172.16.3.0/24 this network

/*Hello Everybody, let's write a jquery plugin, do not always use jquery, but even plug-ins can not write.Ha ha, joking.When you see this log, you can be sure that you are a fan of jquery.Say JS is very casual language, very casually, want to write

A netizen does not know the cat and the router, the hub, the switch difference between them what is different? Computer knowledge Network for everyone to answer: A cat has at least two ports: one to the telephone line and one to the RJ-45 port

Wireless network card is the device of the terminal wireless networks, which is a wireless terminal equipment which is used on the Internet through the wireless network under the wireless LAN coverage. Wireless card with its compact, easy to carry

When we use the Windows 7 system to access the Web site, the IE8 window always pops up the blocker, in fact this is a protection function of IE browser, can block a large number of pop-up windows. Of course, the level of shielding can be set

What's so hard about typing data into Excel tables? This is the most basic operation of Excel, as long as you can not type it? However, in practice, this seemingly simple operation is sometimes not easy to complete. Because different work content

With the needs of the station and the popularity of the VPS host space, more and more webmasters began to use the VPS as a building station space. In the VPS host, Linode VPS is Gao representative, in its lowest consumer price of 19.95 knives above

One, insert a single radio button 1. Click on the mouse, positioning the cursor in the form frame line, click the "Insert" menu, select the "form" item, in the Pop-up submenu select the "radio button" command. Or select the form item in the Insert

What to do if the CPU fan turns the motherboard does not start 1, CPU aspects of the problem CPU does not have power: Use the multimeter to test the three (or one) field tube around the CPU and three (or one) rectifier diode, check the CPU is

　　 1> in DW, how do I enter a space? The question of entering a space in DW seems to have become a cliché, and we may have seen N times in many books or articles about the use of DW. The restrictions on space input in DW are for the

The class teacher work complex trivial, each to each kind of examination, to the student feedback result is one must complete thing. Now do not advocate all students to play all the results and directly posted, but also to let students know their

This article mainly introduces some error prompts that are often encountered in the process of compiling vc++6.0, and gives the error reason and analysis, need friend Karki reference under (1) Error c2001:newline in constant Item No: C2001A

In ancient times there is a way to deal with the ciphertext, the fire can be baked to appear, the effect is very unique. Today, we use Photoshop to do a special effect, so that the photo can not only make the effects, but also to make a brush out of

When your hard drive is damaged or infected, it is easiest to use the antivirus program developed by the trusted manufacturer to clear it. Usually an internal hard drive has only one operating system installed in it, and troubleshooting is easier

Dual-core CPU processor to a certain extent is to speed up the speed of the computer, but the system is not as intelligent as we think, can reasonably assign the work to each core, the following author to tell us how to set up to play the true

This article mainly introduces the Lua object-oriented characteristics, including object and inheritance and other traditional OOP concepts of several key points of knowledge, the need for friends can refer to the Object-oriented features Class: A

in network settings, such as multiple routers in series or to strengthen the router security settings, you will be changed to repair the default gateway. In general, the modification of gateways are required to enter the router settings to operate,

Asimov, a sci-fi writer, created the "Three Principles of robotics" in his series of robot stories. These laws are permanently implanted into every robot as the last insurance against disaster and protecting humanity. I'm curious, what's our last

in the practice of managing student achievement, the original data are often recorded by student entries (Figure 1). If the need to convert to school number, name, subject, grade, ranking of the table-type effect, the data volume, copy, paste

This article mainly introduces the JSON string and the conversion between objects in detail, the need for friends can refer to the following JSON (JavaScript Object notation) is a subset of the JavaScript programming language. Because JSON is a