Linux

The top command is a tool for viewing system performance that shows the status of individual processes in real time, including process IDs, memory usage, CPU usage, and so on.top-23:12:04 up/8:14, 1 user, load average:0.00, 0.01, 0.05tasks:573 Total,

After Linux startup, 3 file descriptors will be opened by default: standard input 0, correct output 1, error output: Error outputs 2After you open the file. The new file binding descriptor can be incremented in turn. A shell command executes,

In Linux, the common commands for file lookups are locate and findLocate works: Global lookup, according to the system file database lookup, the database will be automatically generated during the same run for a period of time, provided that the

Vi/etc/sysconfig/iptables-A input-m state–state new-m tcp-p tcp–dport 80-j ACCEPT (allow 80 ports via firewall)-A input-m state–state new-m tcp-p tcp–d Port 3306-j ACCEPT (allow port 3306 through the firewall) Special Note: Many netizens add these

PMAP provides a memory map of the process, and the Pmap command is used to display the memory state of one or more processes. It reports the address space and memory status information for the process. Pmap is actually a command on the Sun OS, and

There are a lot of performance tools on the Linux platform, a dazzling, long-term groping and experience finding the best thing to use is the proven, simple gadgets. Brendan D. Gregg, a system performance expert, updated his famous talk (Linux

Most of the IO statistics tools under Linux, such as Iostat, Nmon, and so on, are only counted to the Per Device's read and write situations, and if you want to know how each process uses IO, it's a bit cumbersome.If you can systemtap, or blktrace

In the home directory there is a wwwroot directory, wwwroot under the Sinozzz directory, that is/home/wwwroot/sinozzzFirst, Directory creationCreate a new sinozzz123 folder under the/home/wwwroot directoryMkdir/home/wwwroot/sinozzz123Second,

Nginx is a high-performance HTTP and reverse proxy server, also a IMAP/POP3/SMTP proxy server. Nginx compiler installation is relatively simple, the difficulty lies in the configuration. Here is the NIGNX 0.8.54 compilation installation and simple

First, briefAs implies, file permissions are the extent and extent to which the user has the ability to perform operations on the file. Before you explain Linux file permissions, let's look at a common command in Linux, lsSecond, LS command and

Most of the Linux replication our delivery tools use, have FTP,SCP wait a moment.The SCP command is easy and quick,Native to Remote: SCP (-R) local directory or file path remote IP: directoryRemote to Native: SCP (-R) Remote IP: directory local file

qq:971751392 (Welcome Exchange)1 Installing SVNOfficial website Download: http://subversion.apache.org/packages.htmlSVN client: TortoiseSVN, official website download: http://tortoisesvn.net/downloads.html# Yum Install Subversion:1. Create a new

Do you know the difference between URL, URI, and URN? This is a classic technical debate. Many people may ask themselves: URL, URI, and URN. What is the difference between them. Although we simply regard both URN and URL as Uris, URI can be further

Install and configure for LDAP in ubuntu14.04Https://help.ubuntu.com/lts/serverguide/openldap-server.htmlif error occurs in reinstall, try this: "1) sudo apt-get purge slapd2) sudo apt-get install slapd ldap-utils" you can configure ldap after

Deepin install ibus.Unlike most people who like fcitx, I think the ibus framework is quite powerful and I personally like it. 1. After installing Deepin today, I feel that the interface is still working. Because I started to select English and there

Install common linux chromuim plug-ins (flash, gesture, drag and drop, AD shielding)1. The native kali2.0 64-bit, and kali is based on Debian. 2. install the chromium browser sudo apt-get install chromium-browser 3. chromium open-source browsers no

Auto install centOS6.5 under XE + kickstart About PXE Pxe works in the Client/Server network mode. When the Client does not have an operating system locally, it can download the image file and kickstart file from the Server over the network, the

How to install Go for Linux The Go language, also known as golang, is an open-source programming language originally developed by Google. It follows the three principles of simplicity, security, and speed. The Go language provides a variety of

Installation and configuration of Jetty Server Jetty is an open-source Servlet container and application server. It is extremely lightweight, highly portable, powerful, flexible, and scalable, it also supports various technologies such as SPDY,

Use GlusterFS to create a shared file system between two servers The problem is that you want to make the files in a directory of the two servers consistent. I have read a method, such as using Rsync to synchronize directories and NFS shared