Linux

1. Error executing command: The operating environment is Linux, the file system is EXT4 (can be viewed through the Mount command) #setfattr-N test-xattr-v "test" FILE0 Setfattr:file0:Operation not supported (hint info) 2. View Man setfattr and man 5

Suppose the machine that needs to be mapped source directory is pc1:192.168.1.102 The machine that needs to be mapped is pc2:192.168.1.105 PC1 needs: 1. Start NFS Service (/etc/init.d/nfs start ) 2. Add mapping permissions within

The company's test server, is also public, hanging on the test server domain name outside is accessible, recently found that the page access is very slow, sometimes, half a day can not open. Look for a reason.1, my first reaction is not the server

I. Overview: Task scheduling: A specific command or program that the system executes at a certain time Task Scheduling Category: 1. System tasks: Some important periodic work in the system, such as: System backup, Anti-Virus, etc. 2. User work tasks:

Gnuplot is a command line interactive drawing tool (Command-driven interactive function plotting program). By entering commands, the user can gradually set or modify the drawing environment and graphically describe the data or function so that we

If the server has two fast network card can bind it to a virtual network card, if a network card is broken another piece can continue to work, increased redundancy and load, the specific practices are as follows: Create a new virtual network card

Install Orale on Linux, the result xhost is always not good, the graphical interface does not come out, find the following data Practical tip: Set up Xhost method steps in Linux The first step: using Root to log Linux, start VNC service; Step two:

To start VMware's Linux: 1. After entering the Grub interface, you are given a few seconds. Enter GRUB to appear: Red Hat Enterprise Linux Server (2.6.18-8.e15xen) 2. Before the end of the countdown, type E to appear: Root (hd0,0) Kernel/xen.gz-2.6.2

GitHub has contributed a lot to open source, and its version control is also fast and effective However, because the free use of GitHub can only create a common library, if the creation of a public library needs to pay a certain amount of money per

Use LVM to establish a logical volume as/dev/mapper/test-test. Due to an abnormal shutdown, a logical volume error was made and cannot be mounted. So check the logical volume and prompt: # fsck.ext3-f/dev/mapper/test-testE2fsck 1.38

A summary of the Linux under the various formats of compression package compression, decompression methods . tarUnpack: Tar xvf Filename.tarPacking: Tar cvf filename.tar dirname(Note: Tar is packed, not compressed.) ）---------------------------------

We talked about the installation of putty, SSH remote login Linux, in fact, the principle of telnet is similar; Note the point: (1) Linux side installed and open Telnet service; (2) Open Telnet service in Windows; We execute on the Linux side:

I am using CentOS5.5, the NTFS file system is not supported by default, so NTFS drivers are required; If you do not install the driver, the following error occurs:After downloading the ntfs-3g:http://www.tuxera.com/community/ntfs-3g-download/:Steps

First, memtest86+ Access to memtest86+ is due to Linux, but the memory test tool is not dependent on Linux; memtest86+ is a memory testing tool, but this software cannot be run when Windows or Linux is turned on, which means that when Windows is

introduction of disk partitioning theory One slice of a disk has 512Bytes, the first sector holds the MBR and partition table; The boot loader is the program that loads the kernel, such as grub, which is the most commonly used boot loader; MBR:

"Linux operations are applied disciplines, and more will result." View only the contents of line 20th to 30th within the Test.txt file (50 rows)Setting up an experimental environment[email protected] ~]# seq >test.txt[email protected] ~]

View the specified number of rowsSed-n 4,8p File #打印file中的4-8 rowsSed-n 4p File #打印file中的第4行grep ^PW File # View the line in file that begins with PWUse split for file segmentation under Linux:Pattern One: Specify the number of file lines after

Based on Red Hat Enterprise Linux 7.51, IfconfigIfconfig network parameters for obtaining and configuring network interfaces in the format "ifconfig [network Devices] [parameters]"Parameters:Add Addr/prefixlen: Adds a IPV6 address to the network

Soft connections: files and directories can create soft connections, which are equivalent to creating shortcuts to them. After you delete the source file, the soft connection cannot be used.Command format: ln-s [source file name] [soft connection

Based on Red Hat Enterprise Linux 7.5On the Boot home page, press E to enter the kernel editorFind Linux16 This section, add Rd.break at the end, press the key combination ctrl+x run kernel program into emergency rescue modeIn this mode, enter the