For an enterprise s network administrator, how to control and maintain the company s computer?

It's a complicated question, and I can't finish talking about it for a while.

Normally, the network management monitors the computer through traffic monitoring software, and under normal circumstances, you can turn on ARP protection in 360, but there are two situations that you can't avoid, one is to operate on the router, and the other is to use non-ARP attack software to monitor and limit the rate. It is a monitoring of traffic.

If you are fully monitoring the computer, you must have installed the client on your machine, and the usual client is not something you can uninstall yourself, and you can only remove the client by redoing the system.

Basic knowledge of computers, security, etc. Learn SQL and other database languages, whether you need to learn the architecture and maintenance of the server, if you have the spirit, you can also learn to learn web page production, as well as related ASP, PHP, etc., whether you need to learn a programming language such as Visual Basic, etc., in case you use it, such as enterprises to develop new ones, at least when negotiating with others, it will not be so disadvantaged.

Office software, hardware is secondary, enterprise computers rarely have hardware problems, there is nothing more than a loose hard disk cable or loose memory, basically software problems, not a problem, there is to deal with all kinds of employee inquiries, there is to be a router switch, understand network wiring. That's basically it, when I used to be an enterprise network administrator, it was basically employees asking about software applications, which annoyed you

Enterprise network management solutions.

It roughly includes: 1) enterprise network security vulnerability analysis and evaluation 2) network update topology diagram, network security product procurement and **3) management system formulation, employee security education and security knowledge training plan 4) security construction plan 5) network management equipment selection and network management software application 6) network maintenance and data disaster backup plan 7) enterprise firewall application management and strategy 8) enterprise network virus protection 9) anti-insider attack plan 10) enterprise vpn design.

Cyber security should start from two aspects.

Clause. First, the management level. It includes the establishment, implementation and supervision of various network security rules and regulations.

Clause. Second, the technical level. Including the implementation of various safety equipment, the application of safety technical measures, etc.

As you described, first of all, let me remind you of one thing.

Security costs money If you don't want to spend money on these devices you have.

I think we should start with the following points.

1. Formulate and implement a network security management system, including server and personal host security management, including individual-level authority management, etc.

2. Formulate and implement daily work procedures for network security, including monitoring online behavior, including intrusion monitoring.

Third, from a technical level, you are estimated to be a dedicated line access with a switch or wireless router DHCP to assign IP addresses for everyone to surf the Internet, so you can't do Internet behavior management, you need a firewall for packet filtering and logging or a ** server for Internet behavior management and logging.

Fourth, the computer system management in the local area network includes the operation system anti-virus, update patches, etc. The fortress is often breached from the inside, and the internal computer is poisoned and actively sends data to the outside, resulting in leakage This is already a very common thing, so it is very important to do a good job in host protection.

Of course, if you have money, black hole systems, intrusion monitoring, vulnerability scanning, multi-level firewalls, and audit systems can all be hailed.

One last word of caution is that there is no such thing as absolute security, and security is relative.

Whatever level of security you need, you can match what level of security measures you need.

Management is always greater than technology, and technology is only an auxiliary means.

You can learn the specific network maintenance slowly in practice, practice first and then increase your theoretical knowledge! That's how I got here! I'm also a network administrator now!

Like you said, if you just set up a LAN, it's very simple, and you can talk about the specific content in detail in the QQ chat! I've sent a friend request, and the request prompt is - network maintenance! Please agree to it after receiving it!

Big brother, do you still need to teach You don't need to read a book The local area network in the field is easy to manage and arrange, and anyone who has worked as an Internet café administrator can understand that reading a book will give you a headache, right? You contact a service staff of your local security broadband You and him **** will solve it I just give you some advice The main problem is that you usually work harder, isn't it good to learn from your boss when you are in an Internet café Okay, a little too much, a little bit more to say, a lot of Lai Duo Bear with me The center wishes you early success Answer: Taste life.

The next e-donkey. Enter LAN Formation.

To set up a local area network, a specific network structure should be set up according to the specific plant situation. This is the most important, otherwise network maintenance will be busy with you. As for the partitioning of virtual IPs, good routing has this function, which is mainly high-level Internet security.

It is not possible to manage the office computer, the employee can access, the computer of finance, etc. Only by designing a good network structure can we do a deep level of Dongdong. At least three years of practical experience in the network.

Network instability often causes frequent drops, stuck, inability to send and receive emails, and failure to log in to the OA system, and the general solutions are as follows:

1.Test the reason for the external line Test method: connect a single computer to test whether the line is stable.

2.Network bandwidth is maliciously preempted Generally, if the bandwidth is not occupied, it will only feel that the network speed is very slow and will not be dropped, although it is unlikely, but it is not ruled out.

2.You said that it would be good to restart the router, but it won't work for a while, and it's obvious that there is an attack that causes the router to crash or block.

4.In fact, 80% of cyber attacks come from intranets, and extranet attacks are not uncommon, but they are very unlikely.

Solutions to Intranet Attacks and Bandwidth Preemption:

1. On the computer you can't access, take a look at arp -a to see if the MAC and IP address obtained are the same as the gateway MAC and IP, and whether it contains an IP address of 255 or an address with a MAC address of 00 FF.

2. If the above phenomenon occurs, you should check the corresponding MAC or IP machine, or find out the initiation by grabbing packets.

IP address of the ARP attack

3. Find the source of the attack through some ARP inspection tools, and update the virus database first after finding out, if the antivirus fails, you can only redo the system (the machine that sends ARP may not be able to access the network).

The main reason for the above-mentioned intranet attacks is due to the existence of protocol vulnerabilities and poor management at the bottom of the Ethernet network, and it is certainly not possible to solve this problem by hardware alone I heard that the use of the patrol immune network solution to upgrade the existing ordinary network to the "immune network" can fundamentally solve this problem, and the problem of various attacks and bandwidth preemption in your network will be solved!

The easiest way to do this is to buy a good switch or router and manage the network through the switch or router configuration page.

If you enable a remote connection to the switch router, you can manage the tentel function.

OA office system use and maintenance. Including hardware. For example, data backup. Simple problem solving.

If there is a big problem, contact the manufacturer.

LAN maintenance includes all network erection of LAN routers and switches. (Large-scale ones require special equipment).

WAN Simple problems can be handled.

The above is probably the special skills required by a company's network administrator. Because I applied for a job. OA collaboration system is used a lot.

Then there's the company's internal network maintenance. Because there are often problems with the company's internal network. Especially more than 200 units.

Computer's.

If you need to be able to disassemble and assemble the computer, you can. You need to be able to install the operating system, the software used by the company, and the data backup and recovery of the company's software. Office equipment should be set up, but it is not required to be repaired, and those who need to do hardware maintenance should find a repair shop.

The communication equipment should be the best switch, which is not difficult. Emergencies should have a plan, and do it in your spare time, that is, if a device is completely damaged and cannot be used, how do you deal with it, and how much time will it take. Roughly so.

It is necessary to manage routers and switches (to ensure the normal operation of the company's network), office software installation and some other office software installation, computer system installation and handling of simple hardware problems. The printer is connected, and the printer is repaired or something, and it is not needed.

The practical problems are:

1.Be proficient in using tools and software to monitor the status, traffic, and performance of networks and terminals;

3. LAN failure.

4. Machine software failure, such as poisoning.

5. Machine hardware failure, such as switch damage, computer hardware damage, 6. Network failure, such as external network attack.

7. LAN congestion, etc.

A must-read for network administrators. There are bookstores about this kind of bookstore, which includes: basic knowledge of computer hardware, network connection equipment, configuration and management of various application servers, etc.

Go check it out.