Linux

Embedded Linux system porting and development (environment building, uboot porting, embedded kernel configuration and compilation)Course Lecturer: Mr. HanCourse Category: LinuxSuitable for people: intermediateNumber of lessons: 56 hoursUsing

1. PrerequisitesAssume that the IP on the server is 192.168.1.120The client IP is 192.168.1.252, the server side of the installation of SSH serversudo Install Openssh-server2. Login server via SSH on clientSSH [Email protected] 192.168. 1.120After

Linux WiFi portingwpa_supplicant-0.7.3The WIFI server terminal program Wpa_supplicant contains two main executable tools:Wpa_supplicant and WPA_CLI.Wpa_supplicant is the core program,Its relationship with WPA_CLI is the relationship between service

cd/etc/yum.repos.d/switch to the YUM.REPOS.D directory under the ETC directoryLS View the Yum source file information for the current Linux system, where the Centos-base.repo file is the default Yum sourceIf you can surf the Internet with

1. Write Linux device driver, require engineers have a certain hardware foundation, know how SRAM, Flash, SDRAM, disk read and write,The interface of UART, I²c, USB and other devices, polling, interrupt, DMA principle, PCI bus working mode and CPU

In some large companies often appear such a situation: the company or some institutions of internal business System Application server and data are made of multi-machine cluster deployment and basically are Linux system, and are internal network,

Edit/etc/sysctl.conf File addedNet.ipv4.tcp_syncookies = 1Net.ipv4.tcp_tw_reuse = 1Net.ipv4.tcp_tw_recycle = 1Then execute the following command to make the result immediately effective:Sysctl-pDescriptionNet.ipv4.tcp_syncookies = 1 means that Syn

What about forgetting the root password with Linux? Restart the host before the physical host into single-user mode and change the password.First, enter the single-user mode,1. Restart the machine, press any key in the interface650) this.width=650; "

CP Command for LinuxFeatures: Copying Files or directoriesNote: The CP instruction is used to copy files or directories, such as specifying more than two files or directories at the same time, and the final destination is an existing directory, it

I. Write function to the underlying drive process in the applicationAs mentioned earlier, first register the serial port, using the Uart_register_driver function, respectively, Tty_register_driver,cdev_init function, to find the use of

As we all know, bash is an extremely powerful shell that provides powerful interaction and programming capabilities. Such a shell naturally does not lack the "function" element to help the program for efficient modular development and management. As

After getting the new server and installing everything, I started to configure a new site test, but the problem followed, mainly the site was set up successfully, but does not support PHP.Nginx configuration site is actually based on an IP

One of the most important performance points of the Linux system is its pagecache, because memory is much faster than IO, so everyone wants to get in the way of using the cache. File systems are no exception, in order to achieve high performance,

The virtual machine system I'm going to experience is Xen. In the field of virtual machines, Xen has a very high profile, and its name often appears in various articles. At the same time Xen has a very high degree of difficulty, not to mention Topsy,

How to obtain the pci id of a device in Linux Sometimes, you need to use the pci ID of the device during development. For example, to bind a network card with dpdk, you need to use the pci ID of the network card. The following methods can be used to

How to Create a disk image in FAT format This file is a FAT format disk partition image file, the size is 20 MB. For the FAT file format, creating a 2 gb fat image will have 2 GB size, but because it is only an empty file system (the specific file

C program assembly operation mode analysis, assembly Mode Analysis SJTUBEAR Original Works reprinted please indicate the source/"Linux Kernel Analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000  1. Assembly In the initial phase of

Commands and methods for viewing the kernel, CPU, memory, and component versions in Linux Commands and methods for viewing the kernel, CPU, memory, and component versions in Linux Linux Kernel version: uname-More/etc/*

Linux Command Line Test speed When you find that the Internet access speed slows down, people usually first test their computer's network connection speed to the network service provider (usually known as the "Last Mile. Speedtest.net may be the

Cacti monitoring server data migration In response to the customer's requirements and discussions with Wang, if a standby Cacti monitoring server is missing in the BJD environment, the data of the original Cacti monitoring server needs to be