Linux

Shmmax maximum value in Linux x86 and x86-64 systemsReference text:Maximum SHMMAX values for Linux x86 and x86-64 (document ID 567506.1)Goal:Problem 1:32-bit (x86) maximum value in Linux system systems?Problem 2:64-bit (x86-64) maximum value in

This digest from my my book fixing "embedded Linux driver template explaining and project practice"Initially it seems that Linux device driver development involves a lot of content, and the need to achieve a wide range of drivers, in fact, after a

Motion (http://www.lavrsen.dk/foswiki/bin/view/Motion/) is a small, lightweight but powerful application that can be used to manipulate surveillance cameras on Linux. It works with any Linux-enabled camera, including all v4l webcams, many IP cameras,

Because I often work under Linux, so many times need to send their work reports or other useful things to the relevant people, so take the time to study how to send mail under Linux. We can usually use the following 3 to send the method:1. Use the

What is the difference between Linux and BSD?This article was written by someone else and made a little change.Sino-Australian Sinox is based on BSD development, it can be understood as a BSD branch, but because Sinox is not open source, is excluded.

First, digital audioAudio signal is a continuous change of the analog signal, but the computer can only process and record binary digital signal, from the natural sound source audio signal must undergo a certain transformation, become a digital

1.1/** __flush_dcache_all ()* Flush the Wholed-cache.* Corrupted registers:x0-x7, x9-x11*/ENTRY (__flush_dcache_all)Guarantee the order of previous visit instructionsDSB SyRead Cache level ID RegisterMrs X0, CLIDR_EL1//Read CLIDRTake bits[26:24]

View of system environment variables:[[Email protected] ~]# envHostname=localhost.localdomainSelinux_role_requested=Term=xtermShell=/bin/bashhistsize=1000ssh_client=192.168.7.105 50641

Currently, to install the Zabbix client on all client side, because you want to specify a predefined path, make RPM packages from Zabbix resources, there are several ways to make RPM packages: Rombuild, The main is to write spec file one is:

Install Linux svn and Linux svn Orzdba is developed by taobao and is a good tool. To download the orzdba tool, you must use svn to download it. First, install the svn tool. However, installing svn is also troublesome and requires support from

How to build a Squid transparent Web Proxy System on CentOS or RHEL? Bkjia: In the previous tutorial, we introduced how to build a gateway using the user space application iptables. For details, see

Install the nvidia graphics card driver in CentOS 6.5 Install the nvidia graphics card driver in CentOS 6.5.Tools/Raw Materials NVIDIA driver Installation preparation 1Download the driver from the official website according to the specific

In terms of concept, office automation fully uses computer and network technologies to process office services, and achieves information sharing, communication, and collaborative work, that is, all-round paperless office work. Computer Networks are

1. character encoding Introduction 1.1. ASCII ASCII (American Standard Code for Information Interchange) is a single-byte encoding. In the computer world, only English is used at the beginning, and a single byte can represent 256 different

GabeNewell, founder of Valve, is a mighty man who often has sharp or insightful words. For example, when he attacked Windows 8, he said it was a disaster. In the face of piracy, he said, "We have a fundamental misunderstanding about piracy. In fact,

Step 1: First insert the USB flash disk, open the terminal, and run the following command to check whether the USB flash disk has been mounted to the system. Then, you can see the USB flash disk under the Finder. diskutil list The system output is

Environment Introduction: System: centos6.3 mini X64 IP: 172.16.1.200 Integrated Environment: Lnmp ------------------------------ Installation start: 1. Install the FCGI Module # Yum install-y perl-devel # Wget http://search.cpan.org/CPAN/authors/id/

Sometimes, in order to quickly migrate big data during migration of large data volumes, it is possible to temporarily mount a mobile hard disk in NTFS format on a Linux server. Generally, linux does not recognize NTFS-format mobile hard disks (Linux

1. Network Configuration (1) command configuration # Ifconfig eth0 192.168.0.2 netmask 255.255.255.0 // ip address, subnet mask # Route add default gw 192.168.0.1 dev eth0 // Gateway # Hostname centos // computer name (2) file configuration modify

Directory 1. Linux Kernel Parameter Annotation 2. Two Kernel Parameter Modification Methods 3. kernel Optimization Parameter production Configuration Parameter explanations are collected and organized on the network. Common optimization parameters