Questions about firewalls and antivirus software

If you don't have a clear idea of a firewall and antivirus, a firewall is software that sits between a computer and the network it is connected to. All network traffic to and from the computer passes through this firewall. Features of the firewall:

The firewall scans the network traffic that flows through it, which filters out some attacks before they are executed on the target computer. Firewalls can also shut down ports that are not in use. It also prohibits outgoing traffic on specific ports and blocks Trojan horses.

Finally, it can prohibit access from special sites, preventing all communication from unknown intruders. Why Use Firewalls: Firewalls are very protective.

The intruder must first traverse the security lines of the firewall before they can reach the target computer. You can configure your firewall to many different levels of protection. A high level of protection may prohibit some services, such as streaming, etc., but at least it's your own protection choice.

Types of Firewalls: There are different types of firewalls. A firewall can be part of the hardware itself, and you can plug both the Internet connection and the computer into it.

A firewall can also be run on a stand-alone machine that acts as a ** and firewall for all the computers in the network behind it. Finally, machines directly connected to the Internet can use personal firewalls. Once the firewall is installed, the computer will monitor the usage of each port as soon as you open a software that needs to connect to the network, such as:

Internet Explorer, the firewall will prompt you to allow the software to connect to the Internet. If you don't know the name of the software in the prompt, and you don't have any software open, then you can just connect without connecting it. This requires you to have a certain degree of discernment.

Of course, you can use a firewall to close certain ports that you don't use often. Make your PC more secure. Resources.

And antivirus software is to detect and kill viruses, and he and firewall are two different concepts. What about computers that don't install antivirus software, unless those computer maniacs are streaking.

Genuine antivirus software and firewalls come with upgrade services and after-sales guarantees. Take Rising as an example: Genuine Rising is upgraded three times a day, in case of virus damage, antivirus software can not be removed, you can go to Rising headquarters for remote assistance, Rising will send professional engineers to solve it for you.

Piracy does not have this kind of service.

All a firewall does is protect your ports and control the network data that goes in and out of your computer. However, it cannot protect against most virus attacks, and antivirus software does to protect against all virus attacks, but it is not responsible for whether the network data is legitimate or not.

Therefore, antivirus software and firewall work together in a division of labor!

What the landlord said makes sense.,I'm engaged in wired communications.,I'm very familiar with computers.,How familiar it is.,Every day someone asks me to repair the computer.。。。

Now Trojans are rampant, in fact, there are some clever Trojans, and there is really almost no clean way to get into it except to redo the system, but it is not impossible.

In fact, I'm personally like the landlord.,Don't use any fireproof and anti-virus software.,But I rarely get poisoned or Trojan.,It's as if those things scared me away when I saw them.,Haha,Blow a calf.,Mainly because I'm a person with a relatively single interest and curiosity is not strong** Just a few, so there is no chance of poisoning.,But because I often clean up the computer for others, I still have some experience.,These experiences are simple and effective.,Because if it's too troublesome, I won't always help others.,Tired.。

I'll just talk about it briefly.

If you think your machine is slow, the system has such and such a hairy handle, go to the sky software station next 360 security guard ten, and a knife to kill the virus, these two add up to no more than 10m, quickly, and then into the safe mode, note that it must be the safe mode, start these two software, use a knife to kill the virus, use 360 to kill the Trojan, 1 knife is very easy, just click to kill on the line. There are several items in 360, and the malicious ones that are found out are all cleared, and the plug-ins that are found out are also cleared, and they are all clear, don't be afraid and polite. Don't clear any of the redundant software, because you don't know which one is redundant.

The good thing about these two programs is that you don't have to reside on the system, you just have to start them when you have a problem with your system, but you have to be in safe mode. In fact, the resident system can also be installed, card eight compared card, I don't like it, accounting for resources, I generally use Norton 10Although he has almost no anti-pan function for Trojans, it is free and occupies few resources, and Trojans can be killed regularly with 360.

At present, the reason why Norton's reputation is not as good as Kaba's is mainly because he does not have a precaution against Trojans, which is not in line with China's national conditions. But I think a protection software that makes the system get stuck is really the first thing to do.

Basically, if you do this, 80 of the problems will be solved, and if you get 20 powerful Trojans, just ghost.

In addition, the owner understands that viruses and Trojan horses are two different things. Not to be treated the same way.

Although their harm is about the same.

Hello, the installation of firewalls and antivirus software network is safe This sentence is wrong, although firewalls and antivirus software have a certain help to network security, but there is no absolute thing in the world, there is the same risk, but the risk is relatively reduced.

The correct answer to cyber security should be that there is no absolutely secure network, and even if various protection software is installed, users should always be vigilant and cautious when using the network.

So you're asking the wrong question, and I hope my answer can help you.