The Security Protection of the Pre-press Publishing Network System

In the use of computer network systems, especially those connected to the Internet, the issue of network security is currently the most important issue and the most concern of many users. The pre-press publishing network system mainly includes internal LAN and LAN sharing Internet Two parts, in the use of these two parts, need to consider the safety issues, and the use of these two parts of the safety protection is equally important. In the local area network of the prepress publishing system, if there is a problem with its own network security, a part of the prepress processing data is lost. For the data information of the prepress publishing system, it is necessary to introduce the prepress printing network system in use The main safety hazards, and how to adopt effective measures to protect against these safety hazards.

1. Overview of Computer Network Security

In the pre-press publishing network system, it is very important to ensure the data transmission on the network. If there is a problem in the network, it may affect the normal operation of the entire pre-press publishing system, causing varying degrees of loss. There are three main types of problems in the operation of computer networks:

One is the security of the network room. The main control room of the network system is the key to the operation of the network equipment. If there are security problems such as physical security (including fire, lightning strikes, thieves, etc.), electric chlorine sword (including power failure, uneven load, etc.), etc. The computer paper system is in a state of paralysis.

The second is virus intrusion and hacker attack. The pioneering development of the Internet has made it possible for viruses to become disasters. According to statistics, the vast majority of computers currently in use have experienced the harm of computer viruses. The threats posed by hackers to computer networks are divided into two types: one is the threat to the information in the network, and the other is the threat to the equipment in the network. The invasion of computer viruses is mainly to destroy the normal data transmission of the network system. Hackers mainly use interception, stealing, and deciphering to obtain important confidential information.

The third is the security hole caused by unsound management. From the perspective of the broad scope of network security, network security is not only a technical issue, but also a management issue. Network security management includes various aspects such as management organization, law, technology, economy, etc., and network security technology is just a tool to achieve network security.

Second, the pre-press publishing network system computer room security protection

The pre-press publishing network system computer room security protection is mainly to do some basic security protection work in the computer room, such as: installing and configuring fire prevention, lightning protection, anti-theft and other facilities, but also installing the computer room power system and configuring the ground wire Device, it is best to configure USP power supply for all computers and so on. The security protection of the equipment room mainly includes the following aspects:

1. The physical security protection of the main control room.

2. The electrical safety of the main control room.

3. Security protection of workstations in the network system.

4. Specific security protection measures for the pre-press publishing network system computer room.

3. Prevention and Control of Internet Viruses

1. Where to install the virus prevention software.

Network workstations are the main way for viruses to enter the network, so it is reasonable to install antivirus software on the workstations. Because the task of virus scanning is shared by all workstations on the network, this makes the task of each workstation very easy. If each workstation is installed with the latest anti-virus software, you can add viruses to the daily work of the workstation For scanning tasks, performance may be slightly reduced, but there is no need to add new equipment.

The mail server is the second focus of antivirus software.


E-mail is an important source of viruses. Before it is sent to its destination, the mail first enters the mail server and is stored in the mailbox, so it is very effective to install anti-virus software at this time. If the pre-press publishing network system does not have a mail server installed, there is no need to install it.

The network system backup server is used to save important data. If the backup server also crashes, the entire system will be completely paralyzed. The damaged files in the backup server will not be able to be re-used or even infect the system. Avoiding virus infection on the backup server is an important part of protecting network security. Therefore, good antivirus software must be able to resolve this conflict. It can cooperate with the backup system to provide virus-free real-time backup and recovery.

In addition, any place in the network where files and databases are stored may have problems, so these places need to be protected. The file server stores important data for the prepress publishing system, and the Internet server stores important data for the prepress publishing system. Uploading and downloading files without viruses is very important for network systems.

2. Antivirus software deployment and management.

â‘  Make a plan. First understand what type of data and information is stored on the managed network, so as to formulate an antivirus operation plan.

â‘¡ Investigation. Choose an antivirus software that meets the requirements and has the various functions mentioned by Qianyang.

â‘¢Test. Install and test the selected antivirus software in a small area to ensure that it works properly and is compatible with existing network systems and application software.

â‘£Maintenance. The management and update system ensures that it can perform its intended function and can be managed using existing equipment and personnel; download the virus signature database update file, upgrade within the test range, and thoroughly understand the important aspects of this antivirus system.

⑤ System installation. After satisfactory results of the test, this antivirus software can be installed in the entire network.

Fourth, the prevention of network hackers

The following measures may be adopted to prevent hackers:

(1) Hosts that use teinet, ftp, etc. for the transmission of important confidential information for passwords should set up a separate network segment to prevent a computer from being compromised and the attacker to be put on a sniffer, causing the entire network segment to be completely exposed. Under conditional conditions, important hosts should be installed on the switch, which may prevent sniffers from eavesdropping on passwords.

(2) Dedicated hosts only provide dedicated functions. For example, hosts running important processes of network management and database should not run programs with more security holes. The access control in the network segment routers should be limited to a minimum, the process port numbers necessary for various processes should be studied, and unnecessary ports should be closed.

(3) The log files of each host open to users are directed to a syslogdserver for centralized management. The server can be served by a uni * or WindowsNT host with a large-capacity storage device, and regularly check the data on the backup log host .

(4) The network administrator shall not access the Internet, and a special computer shall be set up to download tools and materials using ftp or WWW.

(5) Do not install any development tools to provide e-mail, www, DNS function hosts, to avoid attackers compiling attack programs.

(6) The principle of network configuration should be "minimize user rights", for example, shut down unnecessary or unknown network services, and do not need to send passwords by e-mail.

(7) Download and install the latest operating system and other application software for security and upgrades, install several necessary and necessary security enhancement tools, restrict access to the host, strengthen logging, perform system integrity checks, and regularly check users And notify the user to change it as soon as possible. The passwords of important users should be changed regularly, and different hosts use different passwords.

(8) Regularly check the system log files of the system, make a timely backup on the backup device, formulate a complete system backup plan, and implement it strictly.

(9) Regularly check the key configuration files in the network system.

(10) Formulate detailed intrusion emergency measures and river reporting system. Find the signs of intrusion, immediately open the process recording function, save the process list in the memory and the network connection status at the same time, protect the current important log files, and if possible, immediately open another host on the network segment to monitor network traffic Try to locate the intruder; you can also disconnect the network; in the case where the service host cannot continue the service, it should be able to restore the service from the backup reserve to the backup host.

Taking certain precautionary measures to prevent hackers can greatly weaken the attack capabilities of hackers and serve the purpose of protecting network security. Of course, the software can also be used to prevent hacker attacks as well as anti-network viruses.

In addition, the use of anti-hacking software can greatly enhance the ability of the network system to defend against hackers. Of course, this is also one of the most trouble-free network system security protection methods. After the anti-hacking software package is installed in the network system, it is generally not necessary. A lot of protective operations have been carried out, and only frequent inspections are required. For the choice of anti-hacking software, you can use the online anti-virus software with anti-hacking function, special anti-hacking software and firewall software.

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