kaspersky troubleshooting

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

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

Chapter 7 JVM performance monitoring and troubleshooting tools (1), jvm troubleshooting 1. Locate System Problems Basis GC log Heapdump/hprof File) Thread snapshot (threaddump/javacore file) Running log Exception Stack Tools used for analysis Jps: displays all JVM processes in a specified system. Jstat: Collects JVM running data. Jinfo: displays JVM configuration informat

A case for troubleshooting slave database latency in MySQL: mysql troubleshooting When a customer is inspected today, a core of the cpu of mysqld occupies 100% in the case of no business in the slave database. There is no SQL statement for querying the slow query of the master database.It can be said that the typical single-process replication causes a cpu to be fully occupied. If you know the reason, you c

Record the troubleshooting and resolution of a deadlock, and record the troubleshootingThis is a sad reminder. I remember last week's busy schedule. The goal is to modify some bugs in the code left by another team. This project is used for OLAP analysis, the Logic Server is mainly responsible for metadata operations, such as information displayed on the page, and the Analysis Server is responsible for executing query statements, because they used mond

One troubleshooting-when the disk clearly has space, but it cannot be written in, the disk will be troubleshooting One week at work today, I finally started to operate and maintain the platform and encountered the first practical error. Today, I encountered an alarm saying that the disk cannot be written and I checked the disk space. When df-h is used to find that the disk is not fully written, there is

Oracle lock table troubleshooting example: Oracle lock table troubleshooting One time a developer directly runs the delete table operating system on the database server during peak hours, resulting in no response for a long period of execution. Then, the SQLPLUS client is closed and the delete statement is run again, this causes the database to run slowly.The query operation knows that it is caused by the l

The local computer fails to start Apache troubleshooting, Apache fault handling Recently, due to work needs, to learn the basic programming of PHP, so learning to set up PHP working environment. However, as described in the textbook, after the installation of WMAP, has been unable to run successfully. It was found that Apache was not running. Go to the Apache option in WMAP to select Start but not start. After the expert guidance, summed up the follo

GBK Chinese, but still in the compilation process is used garbled build② picture chromatic aberration (Srgb/argb/cmyk) and so on will cause compile error③ very grateful to the Teaching assistant's patient guidance, not only learned the knowledge also learned the open-source cooperative attitude, all day down the teaching assistants are all the way together to discuss, solve problems, not too many students annoying small problems, ta's enthusiasm and patience let me very touched. It's lucky to m

Hardware troubleshooting 1. Check your power cord again is not plugged well is very necessary, host, monitor! And make sure your power is unblocked. 2. Disassemble the host to see if your memory stick is plugged in, or unplug the memory strips, and try 3. The discharge of your computer, (unplug the power cord, press the power-on key) 4. Discharge Your Bois! 5. Make sure your computer is equipped with an operating system! Add: Software

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

Troubleshooting of common mysql errors and troubleshooting of mysql errors 1. mysql service cannot be started and error 1067 is reported Solution:1). decompress the mysql Server Directory and add a new my. ini file. The content is as follows: [Mysqld] # set basedir to installation path, e.g ., c:/mysql # set it to the installation directory basedir = c:/tool/mysql5617win32 # set datadir to location of data

Linux troubleshooting case (1): linux troubleshooting Running Environment: CentOS6.7 Fault Cause: Yesterday, the command yum-y update was executed online. The command was forcibly interrupted and the poweroff command was run to shut down. If a fault occurs during reboot: According to the prompt information analysis, the system kernel information may be disordered due to the incomplete execution of the

Online troubleshooting commands-Shell, online troubleshooting-shell Creation: Liu Xinyu, latest modification: about 4 hours ago Go to metadata start 1. Track online logs and regularly refresh the latest content tail-fn 200 $log 2. Search for a specified string # Show only matching rowsgrep$String $file# Match up or down n rows of the row where the string is locatedgrep-C n $String $

BTrace: Java online troubleshooting tool, btrace troubleshooting What is BTrace? BTrace is a killer for checking and solving online problems. BTrace can obtain all information during program execution by writing scripts. Note that you do not need to restart the service. Yes, you do not need to restart the service. Write the script and run it directly without the code of the original program. Principle In ge

The local computer cannot start Apache troubleshooting and apache troubleshooting Recently, due to work needs, I have to learn the basic programming of PHP, so I learned how to set up the working environment of PHP. However, as described in the textbook, after WMAP is installed, it cannot run successfully. Then we found that Apache has never been running. Go to the Apache option in WMAP to select start but