This document introduces how to install and configure Cacti on CentOS and how to monitor mysql using Cacti. At the end of the article, we also attached common troubleshooting methods. I. prepare the working environment: software required for Centos5.
We often search for a file in linux, but do not know where it is stored. you can use the following commands to search
We often search for a file in linux, but do not know where it is stored. you can use the following commands to search:Which: view
When you use the-exec option of the find command to process matched files, the find command passes all matching files to exec for execution. However, some systems have limits on the length of commands that can be passed to exec. in this way, after
This article mainly introduces common commands and notes for Liunx system management, including common commands, iptables shielding IP segments, and quick file clearing techniques, for more information about hardware devices and system information,
Many windows systems are very familiar with the ipconfig command line tool, which is used to obtain and modify network interface configuration information. Linux has a similar tool, that is, ifconfig (interfacesconfig)
Generally, you need to log on
This article mainly introduces how to configure the firewall iptables instance in linux. For more information, see
Iptables a detailed instanceCopy codeThe code is as follows:/Etc/init. d/iptables start iptablesInitialize iptables and delete
MarkAtwood is the supervisor of HP's OpenSourceEngagement department. in a speech to students, he published HowtoGetOneofTheseAwesomeOpenSourceJobs. some of the suggestions are suitable for those who want to label Ubuntu in open-source
This article describes how to modify the maximum number of files opened by the system in ubuntu. For more information, see Ubuntu.
Step 1: Configure/etc/security/limits. conf
Sudo vim/etc/security/limits. confAppend at the end of a fileCopy
This article describes how to shut down windows at a specific time and linux at a specific time (shutdown command). If you need it, refer
Windows:For various reasons, we may need the timed shutdown function. The common practice in windows may be to
This article mainly introduces how to install the ibus input method (Chinese input method) in ubuntu in English and how to enable auto-start upon startup. if you need it, refer to the following tag: Ubuntu
In the English version of ubuntu, the use
This article describes how to enable the root permission and disable the root account in ubuntu. For more information, see Ubuntu.
By default, the newly installed ubuntu cannot use root, which must be manually enabled.
Enter:Copy codeThe code is
Linux command lines provide many commands to kill processes. For example, you can pass a PID to kill the process. The pkill command uses a regular expression as the input, so all processes that match the pattern are killed. However, there is another
Webmin is an open-source web-based Unix/Linux system management tool. By using Webmin, you can set and install all system services in a browser, including DNS, DHCP, Apache, NFS, and Samba. Therefore, with this, you no longer need to remember the
When you work on a terminal or console, you may want to record what you do on the terminal. These records can be used as historical materials to save what happened on the terminal. For example, you and some Linux administrators manage the same
This article describes how to use backup scripts, commands, and commercial software in Linux to reasonably and efficiently protect disk data security. The backup and recovery system is responsible for backup and recovery beforehand. In the current
Source: computer enthusiasts automatically log on to Linux and automatically run XWindow applications. this has a special background, such as the Linux-based monitoring system. authentication is not required after Linux is started, and directly run
I have not written any articles for a long time. recently I have received many letters from my friends about the configuration optimization and some new security issues. I would like to discuss these issues with you briefly, if there is any
In fact, Windows systems are similar to Linux systems. the properties of files and directories in Windows systems are read-only and hidden, while those in Linux are the same. In Linux, each file has a specific attribute. It mainly includes two
1. log introduction logs are very important for security. they record all kinds of events that occur in the system every day. you can use them to check the causes of errors, or the traces left by the attacker during the attack. The main functions of
Sar was originally an internal tool.
Sar was originally an internal tool, which can be downloaded at http://pagesperso-orange.fr/sebastien.godard/download.html.
1 installation
Tar zxvf xxx.tar.gz
./Configure
Make
Make install
2. use
Pidstat 2 5
//
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