Linux

I. Open/Close firewall command under Linux1) Permanent, no recovery after rebootOpen: Chkconfig iptables on off: chkconfig iptables off 2) immediate effect, restart Recovery on: Service iptables start off: Service iptables stop When you start the

1.write sending information to online usersWrite User nameContentCtrl+d Save End2.wall (write all) send information to all online usersWall InformationCtrl+d Save End3.mail e-MailMail User nameTitleContentCtrl+d Save EndTap Mail to see if there are

# PARTED/DEV/SDBGNU Parted 1.8.1Using/dev/sdbWelcome to GNU parted! Type ' help ' to view a list of commands.(parted) mklable GPTFormat an MBR disk as GPT# PARTED/DEV/SDBGNU Parted 1.8.1Using/dev/sdbWelcome to GNU parted! Type ' help ' to view a

My computer is Lenovo B460, now long run Debian system, but the touchpad is really a maddening existence, each boot to manual fn+f6 off, this is too cumbersome, so the Internet received the relevant information:Terminal enter the following command

The compilation script for rtc_drv_s3c in the Makefile of the directory is:Obj-$ (config_rtc_drv_s3c) + = RTC-S3C.OThe above script means that if the RTC_DRV_S3C configuration option is selected as "Y" or "M", that is obj-$ (config_rtc_DRV_S3C) is

One, the Windows configuration (1) official website (http://nodejs.org) Select the latest version of node. JS's Windows System (32-bit and 64-bit). (2) After the download is complete, execute the MSI installation file. (3) Install complete, view

[Linux] conversion between the date command Timestamp and time, linuxdate Most of the time we view the data in the database, or some data in other systems needs to be queried using timestamps, or the query results are timestamps. In addition,

Linux File packaging and compression, Linux File packaging and Compression In Linux, many compression commands are supported. Common extension names of compressed files include *. gz, *. bz2, * .tar.gz, * .tar.bz2, and so on. Compression and

Linux Log regular cleanup script and linux cleanup script During work, service logs often occupy the server disk. If you do not clean up, the Service may not work properly. Appropriately increase the log printing level. For example, if the info

Command for viewing Linux system information and command for linux system information [Guide]System uname-a view kernel OS cpu information head-n 1 etc issue view OS version cat proc cpuinfo view CPU information hostname View computer name lspci-TV

Linux performance optimization features Tuned and ktune Performance optimization is a headache and headache for any System Architect and O & M personnel. From the database, server, storage, network, application system and many other systems, there

About the ABI compatibility of Linux applicationsBackground A problem encountered in recent work is that multiple systems run on different versions of the kernel, ARM chips of different architectures, and whether upper-layer business programs can be

Ubuntu writes the command in a file, executes the file, the source command The source command is also called the "dot command", that is, a dot symbol (.). The source command is usually used to re-execute the modified initialization file to make it

Install RTL8188CUS wireless NIC Driver in RedHat Linux 6.4 Red Hat RedHat Linux 6.4 is installed on the desktop, and wireless wlan Access is not available. We hereby use a usb wireless Nic. Enter the command lsusb to see that the USB wireless Nic is

Build Android5.1 development environment and compile on Ubuntu 14.04 1. Install Ubuntu14.04 Download the Ubuntu system from Ubuntu 10.04-Ubuntu 15.04. You can download the desktop and server versions as needed. General Virtual Machine recommended

RedHat 6 Use xrdp remote interface Login Install xrdp in RedHat Linux 6 and log on directly using Windows Remote Desktop Connection. The following describes the implementation method: Step 1: Download the source code package and install some

Modify the username in CentOS You need to modify two files: /Etc/hosts /Etc/sysconfig/network Then restart 1. Modify/etc/sysconfig/networkNETWORKING = yesHOSTNAME = ******** 2. Modify/etc/hosts127.0.0.1 localhost. localdomain localhost4

Configure Hadoop environment variables in CentOS CentOS7 & Hadoop-2.7.0.tar.gz Hadoop is based on the java environment, so jdk needs to be configured.1. Configure jdk:2. Download The hadoop-2.7.0.tar.gz package and upload it to the centos operating

Install and configure PHP source code in Linux Linux: RedHat 6/CentOS 6 Continue with the configuration of Apache in the previous article, and record the process of installing php in Linux below. Step 1: Install the dependent package libxml2, libxml2

How to install mysql password in Centos source code Method 1: First stop the mysql service ,: /Etc/init. d/mysqldstop stop mysql Ps-ef | grep mysql check whether mysql is disabled Then, start the system in the background by skipping the permission. /