Linux PCI/PCI-E Device configuration space Read and modify
1 Preface
PCI and PCI Express, is a high-speed bus commonly used by computers. PCI/PCI-E device drivers and operating system cores in the operating system require access to PCI and PCI-E
The free command displays the idle, used physical memory and swap memory in the Linux system, and the buffer used by the kernel. In the Linux system Monitoring tool, the free command is one of the most frequently used commands.
1. Command
open WiFi hotspot in Linux environmentHostap DHCP Bash
HOSTAPD
HOSTAPD is a user spaces daemon for access point and authentication servers.
HOSTAPD is an AP and Authentication server daemon, using HOSTAPD can be no network adapter to adjust to
FTP command:
The server has an FTP server installed, and another Linux can use the FTP client program to copy read and download files.
1. Connecting to an FTP serverFormat: FTP [hostname| ip-address]A) on the Linux command line, enter: FTP 192.168.26
Novice started to learn Linux, put some basic things summed up. The wrong place to look.
1, Linux graphics interface and command interface to switch
A Redhat Linux system is installed inside the virtual machine. The default entry is the graphical
Reproduced from Bi Xiaobong blog (see map on the right):
In the Linux system, the files related to user management are mainly as follows:/etc/passwd,/etc/shadow,/etc/gfoup,/etc/gshadow, respectively. They are related to the user's account number,
Write-C + + programs are most afraid of the emergence of such a hint, fortunately, in the debugging environment displayed, in the non-debug state of the direct crash exit.From the above assembly code found in the memory address eax+38h the value of
When developing high-performance network programs, Windows developers say that Iocp,linux developers will say Epoll. We all know that Epoll is an IO multiplexing technology that can handle millions of socket handles very efficiently, much more
This does not describe the process of configuring the Rsync service for Linux server-side installations, and there is a need to find relevant tutorials on the Web.1. Installing the Cwrsync Client: http://itefix.no/cwrsync/Download file Cwrsyncserver_
The following error occurs when you run make menuconfig to compile the Linux kernel:
Root @ Ubuntu:/mnt/HGFS/linuxshare/linux-3.10.5 # Make menuconfig
Hostcc scripts/basic/fixdepHostcc scripts/kconfig/CONF. o***Unable to find the ncurses
1. view the file type:
File, For example: # file/etc/Password
Ii. File Search:
1. Which (find the "execution file 』)
# Which [-A] command parameter:-A: Lists All commands that can be found. By default, it is the first command to be found.This
Basic questions about the Linux certification test (see the final answer)
(The following are single-choice questions)
1. cron daemon is used:A. shares files in the network.B. Manage the Printing SubsystemC. Tracking Management System Information and
Sina Weibo @ song Baohua Barry at @ micro disk share Prentice. Hall Press "essential. Linux. device. Drivers" Chinese version of the high definition electronic version "Baohua _essence linuxlinuxequipment driver development"
In the previous sections, we have divided Linux commands into several parts based on their functions in the system. However, there are still some commands that are difficult to classify, but learning them is equally important.
Tar
1. RoleThe
[Switch] Create a Linux kernel startup logo in. ppm format
In the products, it is definitely not good to use the default little penguin logo, so be sure to replace a decent corporate logo image!
I used to start the Linux logo. It took too long to
Inter-process communication in Linux (5): Shared Memory (2)
The system calls MMAP () to map a common file to implement shared memory. System V maps files in the SHM of a special file system to implement shared memory communication between processes.
//----------------------------------------------------
// Author: lanyang123456
// Date: 2012-02-28
//----------------------------------------------------
Kernel version 2.6.18, 2.6.32, or 3.1.10
Linux kernel source code with USB to serial port
Install RedHat Linux 6.0 es on a hard disk in win7
The PDF version of this document can be downloaded at the following addresses:
Http://download.csdn.net/source/3575067 (csdn)
Baidu: http://wenku.baidu.com/view/44c2811cb7360b4c2e3f643f.html
Toy:
1. # cd/tmp
# Wget http://www.openwall.com/john/g/john-1.7.4.2.tar.gz
# Tar-zxvf john-1.7.4.2.tar.gz# Cd johns-1.7.4.2 # cd SRC
# Make linux-x86-any-a.out
Or use sudo apt-Get install John2: unshadow/etc/passwd/etc/shadow> passwd.txt (note that only
The guy who is familiar with DOS is trying to make UNIX like DOS,
One of them is to set the Unix prompt as $ p $ G. The following describes the method.
The GNU bash (Bourne again shell) is more convenient for different shell settings)And KSh (Korn
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