Process switching and general execution of the System 1. Knowledge Summary(1) Timing of process scheduling:
The interrupt processing process calls schedule () directly, or schedule () is called according to the need_resched tag when
modifying environment variables[Plain]View PlainCopyPrint?
sudo gedit/etc/profile
sudo gedit/etc/profileAdd the following code at the end of the profile file[Plain]View PlainCopyPrint?
Export
ENGINEER1.3Configure the SMB shareSamba Service BasicsPurpose: Provide a shared folder for clientsProtocol: SMB (tcp139), CIFS (tcp445)Building a basic Samba service
Installing the Samba Package
#yum-y Install Samba2. Create a shared
Scheduled backup data scheme1th. Backup Requirements there's one in the company. Web Server, the data inside is very important, but if the hard drive is broken, the data is lost, and now the leader asks you to make a periodic backup of the data on
Each file and directory in a Linux system has access permissions, which are used to determine who can access and manipulate files and directories.Access to a file or directory is divided into read-only, write-only, and executable three types. As an
When we operate the Linux v/server, there is a need to restart the system, or shut down the system. Some users are directly to the VPS hosting business panel operation, which is more troublesome, and some panels are not easy to use easy to cause the
Go to the official website (www.virtualbox.org) to download the corresponding VBox version of the Linux system.I'm using the Oracle Linux 7 system (KDE installation)Installing VirtualBox with RPMFind the error, follow the prompts to install the
First, build time synchronization server1. Compile and install NTP serverRpm-qa | grep NTPIf not found, the NTP package is not installed, the NTP packet is found on the CD, and theRPM-UVH ntp***.rpmTo install2. Modify the ntp.conf configuration
One, Absolute pathis starting from the root, such as:/root,/usr/local.Second, relative pathRelative to the current path, for example, we have established a a.txt under the current path.[[Email protected] ~]# pwd/Root[[email protected]~]# ls1. cap -.
Mine is CentOS 7 running under VMware.When enteringPress e-and then scroll through the list to find the Ro (next to root), replace it with RW, space and add init=/sysroot/bin/sh,Then press Ctrl+x to enter into single user mode, in this mode, you can
I. Background:The kernel version of ARM Linux is 3.13.0Two. Preparatory workAdd ALSA drivers to the kernel, that is, when compiling the kernel, add the following options:You can then recompile the kernel toThree. Cross-compiling Alsa-lib and
1. Pre-installed PackagesYum-y Install gcc gcc-c++ kernel-develEnter the system CD package insideRPM-IVH the followingkernel-doc-2.6.32-573.el6.noarch.rpmkernel-2.6.32-573.el6.x86_64.rpmkernel-abi-whitelists-2.6.32-573.el6.noarch.rpmkernel-devel-2.6.
the Linux system startup process is complex because it requires both the static loading mechanism of the module and the dynamic loading mechanism. The dynamic loading mechanism provides a great deal of flexibility to the system, and the driver can
Diagram of the difference between soft and hard linksSummary of Hard Links
Multiple files with the same Inode node number are hard-linked files;
Delete a hard-link file or delete any of the source files, the file entity is not deleted;
Do not want to shut down the system directly add disk, found that the Linux system does not automatically recognize the newly added hard disk;1. View the existing disk, only one disk SDA;[Email protected] ~]# fdisk-ldisk/dev/sda:21.5 GB, 21474836480
Compilation and installation of nginx and related settings in ubuntu environment, using tung.pdf
I. Basic compilation and Installation
1. Install Dependencies
sudo apt-get updatesudo apt-get install build-essential zlib1g-dev libpcre3 libpcre3-dev
Getting started with Redis-installation, getting started with redis
Redis Cluster Construction
Requirement: Create 6 nodes, 3 master and 3 slave nodes127.0.0.1: 6379127.0.0.1: 6380127.0.0.1: 6381127.0.0.1: 6382127.0.0.1: 6383127.0.0.1: 6384
1.
Dstat system monitoring and dstat monitoring
System Monitoring Tool-dstat
Dstat is a multi-function statistical tool implemented in Python. It is used to replace vmstat, iostat, netstat, ifstat, and other commands in Linux.Features:1. Real-time
Original Couldn't read packet: Connection reset by peer troubleshooting (recommended), couldnpacket
As an O & M engineer, not how much you know is your value, but how many mistakes you encounter are your greatest value.
You know, you have me, you
The entire process of installing the YouCompleteMe plug-in CentOS,
After several twists and turns throughout the process, I searched a lot of online blogs. Refer to the following:
Http://990487026.blog.51cto.com/10133282/1905427
Http://blog.csdn.net/
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