Linux

These days to do the MySQL performance test, a huge company, find a few performance testing machines are very tangled, finally coordinated to two, IO performance is not known.The database is an IO-intensive application, so evaluate the server's IO

Rsync another way, write a configuration file, put in etc, through a command to start him, it will listen to a port, the client and the server to communicate.The configuration file IP for the remote machine is 192.168.1.117The name of the

Regular Expressions: pattern-matching languages have their own syntax and rules, the most important of which are metacharacters, usually enclosed in single quotesUse Greb to match text (Greb basic usage is to provide a regular expression and a file,

We often find a file in Linux, but do not know where to put it, you can use some of the following commands to search:Which view the location of the executable file.Whereis View the location of the file.Locate to view the file location with the

One, hard disk partition(a) hard disk partitioning benefits1. Data loss can be avoided. Usually in Windows systems, the hard disk is often divided into multiple partitions, such as C, D, E, F, and so on, while the C disk is mainly used as system

First, using the Memcache top scriptMemcache-top is a Perl-written command-line gadget used to get detailed information about the memcached cache server in real time, such as cache hit ratio. To the official website to download the script, put in

The Linux Find command searches the directory structure for files and performs the specified actions. The Linux Find command provides quite a lot of search criteria and is powerful. Because find has powerful features, it has a lot of options, most

1. search for files using the Find commandFind command: In real-time search on the local file system, the user who invokes the command must have read and execute permissions to the directory where the content is to be viewed. Search the entire

Ext.: http://www.jb51.net/LINUXjishu/86519.htmlHave you developed software under Unix or Linux? Write a program, compile and run completely normal, in your local work well, you put into the source control system. Then, tell your colleague that you

ObjectiveRecent work encountered the need for multiple accounts at the same time need to read and write access to a file, first try to use the chmod 3 permissions to set, after the predecessor pointed out that the use of FACL settings, access to

Failure phenomena:When the client accesses the VIP, there is no access, and the view log information is displayed as follows:Kernel:IPVS:RR:no Destination AvailableKernel:IPVS:RR:no Destination AvailableKernel:IPVS:RR:no Destination

This article is not a beginner Tutorial!!! Parallels Desktop (to prevent the NIC type from being found to be set to Intel (R) pro/1000 MT). KALI-LINUX-2.0-AMD64 (i386). ISO (the LIVECD compilation tool is complete, LiveCD start another

? The two-Nic binding implementation is the use of two network card virtual become a network card, the aggregation of the device appears to be a separate Ethernet interface device, the popular point is that two network cards have the same IP address

Linux inter-process communication (IPC) Programming Practice (9) System V semaphores-A toolset for encapsulating a semaphores operationMain API # include # Include # Include Int semget (key_t key, int nsems, int semflg );Int semctl (int

How to create a new file system/partition on a Linux terminal Creating a partition or a new file system in Linux usually means one thing: Installing the Gnome Parted partition Editor (GParted ). This is the only way for most Linux users. However,

Install VMware Tools in LinuxIf CentOS is installed on VMWare, some problems may occur when the system installs vmware-tools. Now, let's share the installation process and solutions ;! The system used in this article is CentOS6.5 minimal. 1. log on

Release of Exam System for Linux learning and linuxexam System Configuration time: January 1, November 27, 2015 Configuration person: writer: light rain Happy01. Linux installation Diagram Welcome Page Desktop 02. File directory operations

Linux Kernel log-dmesg Sometimes mysqld or other processes running on Linux or system may encounter some inexplicable problems, such as sudden failure, or sudden restart. The problem cannot be found in the software. In this case, we should suspect

High-availability Hadoop platform-Hadoop Scheduling for Oozie Workflow1. Overview In the "high-availability Hadoop platform-Oozie Workflow" article, I will share with you how to integrate a single plug-in such as Oozie. Today, we will show you how

Control the start and stop of the mono service in Linux When the services in windows are deployed to Linux, we generally use Mono. service to start and stop. It is not easy to use because there are many parameters. So there is a Shell script. Usage: