multicast troubleshooting

Details of several common troubleshooting methods for routers, and details of several troubleshooting methods1. 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 s

Atitit. troubleshooting series ----- troubleshooting when apache cannot be started Atitit. troubleshooting series ----- troubleshooting when apache cannot be started You can directly use cli to start httpd and print out detailed information .. C: \ Users \ ASIMO> "C: \ wamp \ apache2 \ bin \ httpd.exe" Httpd.exe: S

Network troubleshooting and viewing in linux, and network troubleshooting in linux Basic troubleshooting errors Troubleshooting must be simple and complex. Some people repeatedly configure the above files, but they cannot access the network. They always think that the system is faulty and want to reinstall the host. Th

MySQL redo deadlock troubleshooting and troubleshooting process analysis, mysqlredo Problem background I went to work on Monday. I first asked my colleagues about the test results last week. I was told that MySQL Server hang is in multiple instance scenarios and cannot be tested. The native version does not have this problem, this problem occurs in the new version, so I cannot help but feel at ease. I feel

Linux system-network basic configuration and troubleshooting, and linux basic configuration troubleshooting In linux, there are three types of network configuration: one is to directly implement the configuration file using command lines on the terminal, and the other is to modify the configuration file, another method is setup text interface settings. The difference is that after the configuration file is

Although the Linux system is very powerful, stable, but we use the process, if the human operation is not appropriate, will still affect the system, and may even make the system does not boot, unable to run services and other problems. Then this blog post summarizes some common troubleshooting methods, but it is impossible to cover all, can only continue to supplement, update.first, the administrator forgot the password(1), restart the computer, enter

Atitit. troubleshooting series ----- troubleshooting when apache cannot be started, atitit ----- apache Atitit. troubleshooting series ----- troubleshooting when apache cannot be started You can directly use cli to start httpd and print out detailed information .. C: \ Users \ ASIMO> "C: \ wamp \ apache2 \ bin

For a one-time troubleshooting page 502, page 502 troubleshooting First, Scene: System Deepin 15;php 5.5.33;nginx 1.9.9 Second, the situation: simple page output normal (such as phpinfo ();), run any of the company's projects, are 502 Third, the investigation 1, query various logs, including Nginx.error.log, Php_error.log, Php-fpm.error.log, find PHP-FPM error as follows [22-mar-2016 11:06:32] WARNING: [Po

Analysis of troubleshooting and troubleshooting Definition:N ordered elements should have n! . If an arrangement does not place all elements in the original position, it is called an incorrect arrangement. Let's give an n, and find the number of "D" for "1, 2, 3", "...", and give all the error troubleshooting solutions. Reasoning: Step 1: place the nth element i

High-load Mysql troubleshooting and mysql troubleshooting Troubleshooting of Mysql high load Problems Found The top command checks the server load and finds that mysql has 200% of the cpu, which causes the high load of Mysql. It is estimated that it is caused by index problems and some abnormal SQL statements.Troubleshooting 1. determine the type of high load. T

Java virtual machine performance monitoring and troubleshooting tools, virtual machine troubleshooting 1. jdk command line tool 1) jps: Virtual Machine Process status Tool Jps [option] [hostid] Main parameters: 2) jstat: Virtual Machine statistics monitoring tool Jstat- Main parameters: For example, if the gc information of process 8675 is queried twice every 8675 ms, jstat-gc 1000 2 3) jinfo: Java conf