Linux

I. CACTI INTRODUCTIONCacti in English means the meaning of cactus, Cacti is a set of PHP, MySQL, SNMP and rrdtool development of network traffic monitoring graphical analysis tools. It uses Snmpget to get data, use RRDtool drawing graphics, its

ExpectMediumShaoxingexpect is by Don Libes based on Tcl (Tool Command Language) Language developed, primarily for automated interactive operation scenarios, using expect to handle interactive commands, you can automate the process by writing

• Recognize the command line Line promptOpen a shell, where Kios represents the user name of the open shell; @ is the delimiter: Foundation is the name of the host used by the user; $ is the identity prompt, $ represents a normal user,

Iptables FoundationA rule is a predefined condition for a network administrator, and the rule is generally defined as "if the packet header conforms to such a condition, it will handle the packet." Rules are stored in the packet-filtering tables of

Some basic common simple Linux commands, want more complex and more comprehensive commands can refer to the following documents!Friendship Share Linux Common commands Daquan: Link: http://pan.baidu.com/s/1jI3yVCa Password: IMCVPWD View current path

Delete: Rm-rf./jsp/(Delete JSP folder and all sub-files in this directory)Graphics switch to command interaction mode: CTRL+ALT+F1Go to the JSP folder under directory: CD folder name or CD./jspReturn to the previous level: CD.Switch User: SU user

In Linux, everything is a file. All things are files, including commands, hardware, and software.Linux does not differentiate files by extension, these conventional extensions (. gz,.rpm,.html,.sh) are just a token. Unlike Windows, the extensions in

Structure of tree-like directoryThe Linux file system is an inverted, single-rooted, tree-like structure. The root of the file system is "/"; file names are strictly case-sensitive; the path is split with "/" (using "\" in Windows).The tree-like

Turn off Chrome's graphical output with XVFB#！ /bin/bash. /home/fzuir/.profile# javaexport java_home=/usr/local/jdk1.7.0_75export jre_home= $JAVA _home/jreexport PATH= $JAVA _ Home/bin: $PATHexport classpath=.: $JAVA _home/lib: $JAVA _home/lib/tools.

CD ==change directory role switching path, for example: CD/***Touch = = Touch to create a file. Example: Touch ellon.txtVim = = Complex Editor, equivalent to emeditor,editplus,notepad++echo = = Print out content, with ">" or ">>" to overwrite and

The library functions provided by third parties, or the interfaces that they provide to others, usually provide help documentation for ease of use. So how do you add these documents to the Linux operating system so that you can view them by man? The

First, prefaceFor interrupt handling, Linux divides it into two parts, one called Interrupt handler (top half), something less urgent to handle is deferred, and we call it deferable task, or bottom half. How to defer execution is divided into the

CentOS 7 replaces SysV with SYSTEMD. The purpose of the SYSTEMD is to replace the INIT system that has been in use since the Unix era, to be compatible with SYSV and LSB startup scripts, and to boot the load service more efficiently during the

In view of the construction, the reference online a lot of information, online information in useful, but also pit a lot of peopleThe purpose of this article is to let the successor in the build SVN server no longer make a mistake, no longer by the

Linux installation WordPress2 software used(1) virtual machine:Vmware workstation 11.0.0 build-2305329 (2)linux:red Hat Enterprise Linux 6 2 Building ProcessA DownloadDownload Wordpress-4.3.1-zh_cn.tar website: http://wordpress.org/download/Two

First,description of problem phenomenaAfter successful installation of a Dell Server Rhel 6.8 System, the user reflects a high latency when logging in to the server via SSH, and can delay up to 6-7s or even direct error.Connecting to 10.0.0.10:22 ...

Switch directory: CDCD directory CD directory/directory CD: : Previous directory CD/: root directory cd ~: HomeCreating directories and deleting directoriesmkdir Create mkdir directory name mkdir-p a/b/c rmdir Delete rmdir directory name: Only one

File systems mounted under Linux sometimes need to fill in the file system. But some devices get hands still do not know the file system, this situation, can be usedparted command# parted/dev/Vdagnu Parted3.2Using/dev/vdawelcome to GNU Parted! Type'

Experimental environmentService side: Linux Centos 6.8 (10.208.131.198) Client:windows (10.208.131.199)Service sideFirst, installing rsync Service Setup boot from # yum Install xinetd rsync-y# chkconfig xinetd on# chkconfig rsync onsecond, set up

Ex replace command instance, ex replace instance I. Overview A configuration file contains the following content: Jack_companya lucy_companyb jack lucy You need to change it: Jack_companya lucy_companyb Ii. Operations Step 1: Replace the