Routine maintenance and troubleshooting of Internet cafes

To stay competitive, Internet cafes must have their own characteristics and provide users with high-quality and stable services. Ensuring smooth transmission of network data, timely updating of software and game patches, and timely elimination of network and hardware faults is a prerequisite for the survival of Internet cafes. Meticulous network management and correct fault analysis are the key to success.
First, let's talk about the network management of Internet cafes. When it comes to network management, we have to mention network administrators. Because they are the planners and executors of network management, their personal capabilities determine the quality of network management. As a qualified network administrator, you must have a wealth of network technical knowledge and be familiar with the configuration and operations of a system. You must read and familiarize yourself with the instructions on the use of various systems and devices in the network system, in the event of a system or network failure, you can quickly determine the link of the fault, the cause of the fault, and find a quick and simple way to troubleshoot the fault.
In the case of normal network operation, the management of network infrastructure mainly includes: ensuring the normal network transmission; master the configuration and Configuration Parameter Changes of the main equipment in the Internet cafe, back up the configuration files of each device. The devices here refer to vswitches and broadband routes. Manages network cabling distribution racks to ensure proper and orderly cabling; master internal network connections to locate problems quickly; master connection configurations with external networks, and supervise network communication, promptly contact the relevant organizations after the problem is found; monitor the operation and communication traffic of the entire Internet cafe.
One of the core tasks for maintaining the network operating environment is the management of the Internet cafe operating system. This refers to the operating system of the server. To ensure that the operating system of the server works normally, management software provided by and downloaded from the Internet should be used to monitor the operating status of the system and optimize the system performance, promptly discover and handle fault signs. If necessary, you need to create a hot backup for key server operating systems to avoid network paralysis caused by fatal faults.
The management of the network application system is mainly for the management of functional servers that provide services for Internet cafes. These servers mainly include proxy servers, game servers, and file servers. Be familiar with server hardware and software configurations and back up software configurations. Game software, audio, and video files must be updated frequently to meet user requirements.
Network security management is difficult and a headache for administrators. Because users may access various websites and have a weak security awareness, it is inevitable to be infected with viruses. Once a machine is infected, it will initiate a chain reaction, paralyzing the entire network. Therefore, it is necessary to prevent the virus from occurring before, set a firewall for the server, scan for system security vulnerabilities, install anti-virus software, make the virus database up-to-date, and perform regular virus scanning.
The most important thing in computer systems is data. Once data is lost, the loss will be huge. Therefore, it is necessary to prevent such incidents from happening in the file storage and backup Management of Internet cafes. The fee recording data and important network configuration files of Internet cafes need to be backed up. Therefore, images must be made in the storage system of the server to protect the data for disaster tolerance.
Next we will talk about common faults in Internet cafes and analyze them. To solve network faults, we rely on experience. When we encounter and solve many faults, we naturally become a master.
Common Faults in Internet cafes, such as machine crashes and restarts, are nothing more than high CPU temperatures, viruses, operating system problems, or power problems. These faults are obvious and can be well determined and solved. However, many faults are concealed. This is the case for this fault. Let's take a look at its analysis process. The Network Manager received a notice saying that there was a machine in the Internet cafe, which was so slow that the Internet access was interrupted and sometimes the Web page could not be opened. After receiving the notification, he immediately came up to handle the problem. He first pinged the file server in the internet cafe and found that the return time was very slow, usually several hundred milliseconds, sometimes even timed out, which seems to be a typical network interference problem. He checked the network configuration and network card and found that there was no problem. The problem must be caused by a network cable or network interface. However, the network cable was newly created in the morning, so I tested the switch interface and found no exceptions such as packet loss. It seems that the network cable is faulty, the results of the instrument test also indicate that the network cable is faulty. He wondered why the crystal heads and cables were new. He checked the following crystal heads and found that the copper pieces on the crystal heads were black oxide, it seems that the fault should appear here. After the oxide layer is cleared with a knife, the twisted pair wires are reconnected to the switch. The fault has been solved. But how can the new crystal head be oxidized. Later I found that there was a rice bag under the cabinet containing these crystal heads. Oh, it turned out that the steam used to cook made the copper pieces of the crystal head oxidized. This incident reminds us of the impact of the environment on network devices and devices.
Fault Analysis of slow Internet access speed in Internet cafes. Among the many network faults, the biggest headache is that the network is accessible, but the network speed is slow. When encountering such problems, it is often helpless. The following are common causes and troubleshooting methods for this fault.
Network cable problems. Twisted Pair wires are strictly and reasonably closely wound together with four pairs to reduce the impact of background noise. If the network cable is not made according to the correct standard, there is a great risk. Some of them start to work normally for a while, but after a while, the performance will decrease and the network speed will slow down.
Loop Problems. This rarely happens when the network size is small and the number of nodes involved is small and the structure is not complex. However, in some complex networks, it is easy to form a loop. data packets are constantly sent and verified, which affects the overall network speed and is difficult to find. To avoid this situation, make sure to develop good habits during cabling.
Broadcast storm. As the main means to discover unknown devices, broadcast plays an important role in the network. However, as the number of computers in the network increases, the number of broadcast packets increases dramatically. When the number of broadcast packets reaches 30%, the network transmission efficiency will be significantly reduced. When the network card or network device is damaged, the broadcast package will be sent continuously, resulting in a broadcast storm and network communication paralysis.
Port bottleneck. In fact, the WAN port and LAN port of the router, and the server Nic may become a network bottleneck. During network peak hours, network administrators can use network management software to view data traffic of routers, switches, and server ports to locate network bottlenecks and increase their bandwidth.
Worm. The effect of the worm on the network speed is becoming more and more serious. This virus causes infected users to send out mails continuously as long as they access the internet. The virus selects random documents in the user's computer to be appended to the random address of the user's address book for mail sending. Spam is sent out in batches, and some are returned in batches to the server. This causes significant internet congestion and local area network paralysis. Therefore, Internet cafe administrators should always pay attention to new virus announcements to learn about virus characteristics, promptly upgrade the anti-virus software, install system patches, and uninstall unnecessary services, disable unnecessary ports to improve system security and reliability.
Internet cafe network management and software and hardware failure analysis require solid network technology knowledge accumulation and rich troubleshooting experience. Therefore, Internet cafe administrators must constantly learn to enrich themselves, to cope with possible problems.