Source: blog China
Today, computers are moving towards multimedia and intelligent development, while speakers are an important part of multimedia devices. It can be said that speakers are the most direct computer peripherals in addition to displays, its quality directly affects the effect of multimedia computers. The following describes some common troubleshooting methods for multimedia speakers:
When the speaker does not sound or only one sound, firs
Demonstration: Analysis and troubleshooting of RIP route updates
Fault Background: In the network environment shown in 14.6, engineers configured the interface address on the corresponding interface and started the RIP route protocol throughout the network, for some special reasons, the vros2 S2/0 interface does not have a specific IP address configured. The Unnumbered IP address (ipunnumbered e1/0) is used ), in fact, the IP address on the S2/0 int
, the single-pickup module B) was also deployed on the scene, but the amount of the order generated was not reduced.second, on-site deployment diagramAfter receiving the email, we quickly began to troubleshoot the problem. Before troubleshooting the problem, we learned about the deployment of each module in the field, as shown in 1.Figure 1 Field deployment diagramthree, the cause of the initial analysisWe asked the field support staff to return to th
Linux Troubleshooting IdeasThe basic idea of troubleshooting: the computer itself will not make mistakes, it is a tool and a carrier, only according to the people entered the command or program execution. The error is due to people in the operation of the problem, or the design of the time when there are bugs, or even hardware defects and so on. 1. View failure Information location Failure1) First check the
The previous article introduced the online application of one of the troubleshooting: High CPU occupancy, this article mainly analyzes the high memory footprint troubleshooting.
Java developers often encounter the following two kinds of exceptions:
1, Java.lang.OutOfMemoryError:PermGen Space
2, Java.lang.OutOfMemoryError:Java heap space
To explain these two exceptions in detail, you need to simply revisit t
MySQL replication exception big literacy: Quick traceability and troubleshooting full solutionHttps://mp.weixin.qq.com/s/0Ic8BnUokyOj7m1YOrk1tAAuthor IntroductionWang Songlei, currently working in Ucloud, is engaged in the MySQL database core research and development work, mainly responsible for the Ucloud cloud database UDB kernel troubleshooting work and the new database features of the research and devel
It is very useful to know some troubleshooting methods for access networks, and it also gives us more convenience in actual use. So I have studied the specific implementation methods of access network troubleshooting, And I will share with you here, hoping it will be useful to you. As a comprehensive technology, network fault diagnosis involves many aspects of network technology. Before learning the concept
DHCP protocol troubleshooting problem. This time, we mainly aim at the failure of clients to obtain IP addresses through the DHCP server. In this regard, what problems should we pay attention to, as well as its analysis and specific handling steps? Next we will look at it in detail.
DHCP protocol troubleshooting ◆ Network Environment
As shown in. In this networking environment, you can configure a global ad
1. Serial Port troubleshooting
When a connectivity problem occurs in the serial port, in order to eliminate the serial port fault, the show interface serial command is generally used to analyze its screen output report content and locate the problem. The start of the serial port report provides the interface status and line protocol status. Possible Combinations of interfaces and line protocols are as follows:
1) serial port running and line protocol
[-]
Memory troubleshooting tools and related documents introduction focus
1 procsysvmmin_free_kbytes
2 procsysvmdrop_caches
3 Procsysrq-trigger
31 interpretation of the echo m Procsysrq-trigger output
4 Cat Procslabinfo
5 Cat Procmeminfo
51 Important Information
6 Top Information
7 Free Command
8 other files in the PROCSYSVM directory
5. Memory
method in the maintenance of the computer. Replacement refers to using normal switch components to replace faulty parts, so as to find the fault point. It is mainly used for the diagnosis of hardware faults, but it should be noted that the replaced parts must be the same type of switches of the same brand and model.
Of course, in order to make the troubleshooting work follow the rules, you can analyze the faults according to the following principles.
Wireless troubleshooting is what we will explain the content of this article. To cut into our theme from four aspects. Includes whether it is a hardware issue, how the access point is connected, whether the device is configured incorrectly, and whether multiple access points are not in the customer list.
Wireless troubleshooting One, is a hardware problem
When there is a problem with the wireless network,
1RIPSummary
RIPRouting Information Protocol) Is based onD-VThe internal dynamic routing protocol of the algorithm. It is the first standard supported by all major vendors.IPThe routing protocol has become one of the criteria for transmitting router and Host Routing information. It is applicable to most campus networks and continuous regional networks with little change in usage rate. Generally, it should not be used in more complex environments.RIP.
RIP1As the distance vector routing prot
As one of the important accessories in the computer, the memory is mainly responsible for temporary data access tasks. Because the memory quality is uneven, the probability of failure is relatively high. When the computer cannot start normally, enter the operating system, or run application software, and often crashes for no reason, most of them are caused by memory stick problems. I encountered various faults caused by memory problems when using my computer, and summarized the causes of memory
"Hope, smell, question, cut" is a traditional method for diagnosing diseases in Chinese medicine, also known as "Four diagnoses ". The doctor uses these four methods to collect the symptoms of the disease. Through inductive analysis, he can understand the cause of the disease, the location, nature, and internal connection of the disease, and finally take the right medicine to remove the disease. Network administrators can use multiple methods to test and troubleshoot network faults, however, the
Whether it is the use of network technology or the troubleshooting of network faults, we should have a certain understanding as a network administrator, so here we will explain in detail. How many of us know about wireless network technology? We have summarized some common troubleshooting techniques for wireless network faults.
Wireless routers have become increasingly popular for wireless Internet access.
Troubleshooting of vswitch Network Communication
Cisco's catalyst switches are generally not prone to faults. Once a fault occurs, it is usually difficult for CCNA certified trainees to detect and troubleshoot, this section summarizes some minor faults that often occur during the use of vswitches to help students pass authentication and adapt to a simple working environment.
Faults related to physical layer connection:
Physical Layer line connectio
In the face of DHCP services and other related content, we not only understand some basic information about it, but also introduce some configuration and troubleshooting content. Next, we will mainly explain the troubleshooting process of DHCP servers based on the interface address pool. We have introduced its network environment and processing process.
DHCP server tro
OSI reference model and troubleshooting
The bottom layer of the OSI reference model provides services for its upper layer. Therefore, troubleshooting should also be performed from the bottom layer to the upper layer.
If you are an IT support staff member of a company and an employee calls to say that the webpage cannot be opened, what should you do?
1) physical layer check. First, check whether the netwo
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