Linux

Monitoring software cacti BuildingFirst, the Environment preparation1. Install Epel extension Source[email protected] ~]# Yum install-y epel-release2. Build Lamp Environment[[email protected] ~]# yum install -y  httpd php php-mysql 

1. Question: How Linux executes the main function.This article uses a simple C program (SIMPLE.C) as an example to explain. Code as follows, int Main () { return(0); } 2. Compiling~ #gcc-O simple simple.c3. View basic

Used for text lookups.grep [-abcefghhillnqrsvvwxy][-a][-B][-C][-d][-e][-f ][--help][template style [file or directory ...]-A or--text do not ignore binary data.-a or--after-context=-A N In addition to the row that matches, if the row is greater than

Ctrl+alt+t: Open terminal(The directory opened is the same as the previous terminal directory, if the terminal is not previously opened, then the main directory )Shift+ctrl+n: Open terminal( opens a directory that is the main directory; creates a

Linux kernel porting and bootingTarget borad:fl2440bootloader:u-boot-2010.09Cross compiler: buildroot-2012.081.linux Kernel BasicsFirst, Ax. Before we start the Linux kernel migration, we need to understand the Linux kernel.1.1 Linux kernel Boot

A basic network construction--Build a DHCP serverRefer to: http://luzhi1024.blog.51cto.com/8845546/16554431 Modifying the ip:/etc/sysconfig/network-scripts/ifcfg-eth0 of a server650) this.width=650; "src="

First, Introduction Ubuntu Series System Package management tools. Ii. Common directives 1. Query function apt-Cache Search Package Search packages apt-cache show package get information about packages such as description, size, version, and sudo

Look at the software first, then introduce the installation method. Through can be seen. The software can monitor the CPU, memory, network traffic and other related information in real time, and can even monitor the hardware

Second Speaking:1.startx entering the graphical interface2.shutdown-h now shuts down3.shutdown-r Now restart your computer4.reboot Restart your computer now5.su-Switch to system administrator status6.logout (enter at prompt) user logoff7.VI Editor

1. Kernel introduction and get kernel source code 1.1 what is a kernel Kernel: the kernel (kernel) is the lowest level of the entire operating system, he is responsible for the entire hardware drive, as well as providing the necessary

This class, this semester we have only one of the three departments of this course, many many many students say why you have to choose this course. Parents also say, why don't you come with the crowd. Someone asked me before, whether regrets chose

1, Command Help Manual (3)--help is a tool option and most GNU tools have this option, and the "--help" option can be used to display information about some tools# command--helpMan can display the contents of the System man page, most of which is an

Linux control statements need to use a variety of conditions, and the conditions are divided into different types.To test an expression:(1) Integer testA-GT B: Greater ThanA-ge B: Greater than or equal toA-eq B: EqualsA-le B: Less than or equal

What is Iptables? Iptables is a powerful application-layer firewall tool under Linux, but after understanding its rules and fundamentals, it is easy to configure.What is NetFilter? When it comes to iptables, it is necessary to mention

1. If the crash is in the program, for example SMH kernel:process_name[32183]: Segfault at IP 0000000000412b13 SP 00007fffaab744e0 error 6 in Process_ NAME[400000+6E000]1> can be addr2line-e process_name 0x412b13-f specific to the source of that

1. checkout files to a local directory svn checkout Path (path is a directory on the server)For example: SVN checkout svn://192.168. 1.1/Pro/domainShorthand: SVN co 2 . Add a new file to the repositorySVN Add fileExample: SVN add test.php (

In Linux, using Vi is a solution that cannot be used when the direction keys change garbled back keys. Editing some files in Linux involves the vi editor. In Linux, when vi is initially used, the cursor is not moved when the direction keys are used

Network Configuration for Linux (Ubuntu) Modify IP AddressThere are two methods: The ifconfig command and the network-related configuration file.Ifconfig command Example: sudo ifconfig eth0 192.168.108.54 netmask 255.255.255.0 If the network adapter

Bridging settings and problems for CentOS7 virtual machines Today, the CentOS7 virtual machine is installed in VMWare WorkStation9. There are three ways to connect a VM to a Host: Bridging, NAT, and Host Only. The three modes can be found on the

3. How to release the device memory Every time you have a good time in the park with your family, the child is doing something very cute. You can pull out your cell phone and start recording ...... The mobile phone displays "insufficient space ". A