Linux

Some time ago in the player's time, encountered a problem, took a long time, to make a record, hoping for the need to help people:Player's broadcast video, whether it is to manually switch video or video playback completed, automatically switch

Prepare before deployment:Iptables and SELinux are not configured, turn offMount system image as local Yum source, modify Yum fileSOURCE Package Preparation Keepalived-1.2.13.tar.gzEnvironment Introduction:Primary server ip:192.168.100.157

First step: Multiple Tomcat installations and JDK installations in Linux (slightly)The second step: Nginx installation, Linux installed Nginx and windows are a little different also error-prone, need to compile, here to do the introductionFirst,

Current system semaphore limit:# Ipcs-ls--semaphore limits--–Max number of arrays = 128Max semaphores per array = 250Max semaphores system wide = 32000Max Ops per semop call = 100Semmsl Meaning: The maximum number of semaphores in each

usually always use the exit () function, but today to see the source of the _exit () function, want to know their differences, so look up information, wrote down!#include void exit (int status);Not as difficult to understand as fork, from the name

Device numberThe device number consists of the main device number and the secondary device number. Linux, all devices are files, all devices can find the corresponding files in the/ dev directory. These files, in addition to their names, have

Linux Command Encyclopedia 1. Document management Cat Chattr Chgrp chmod Chown Cksum Cmp Diff Diffstat File Find Git Gitview

First, add in/etc/rc.local if you do not want to glue the script, or create a link, then: Step1. First, modify the script so that all of its modules can be executed normally when any directory is started; Step2. At the end of the/etc/rc.local, add a

Reprint: http://blog.chinaunix.net/uid-7552018-id-182133.htmlFirst look at the/etc/crontab file: $ cat/etc/crontab Shell=/bin/bashPath=/sbin:/bin:/usr/sbin:/usr/binMailto=roothome=/ # Run-parts* * * * * Root run-parts/etc/cron.hourly4 * * * Root run-

ObjectiveRecently learning the Linux kernel, read the chapter on memory addressing in-depth understanding of the Linux kernel. Originally thought oneself to the subsection paging mechanism already understood, the result discovers actually is

1. Shell current directory $ (PWD)2. Samba Configurationsudo apt-get Install Sambasamba profile is /etc/samba/smb.conf[global]security =Share [linux_share]path=/home/linux/sharepublic =/ETC/INIT.D/SMBD Restart3, the Linux read disk hard disk

# # Learning Summary# #超级用户权限 VSFTPD installation (L)Yum Install vsftpd apt-get install VSFTPD VSFTPD configuration (local user login restricted to their home directory,/etc/vsftpd.conf)Listen=yes (see if the connection is turned on if

The general default installation on the system is 0.9.8 version of OpenSSL, which does not meet the needs. This is the time to reinstall OpenSSL.openssl:https://www.openssl.org/source/download new version of the websiteDecompression: TAR-ZXVF

I. SignalWe run a program under the shell, can be in the process is running when the keyboard input CTRL + C, you will see that the process has been terminated, in fact, when we type CTRL + C is to send a SIGINT signal to the process, When a

Linux wget is a tool for downloading files, which is used at the command line. This is an essential tool for Linux users, especially for network administrators, who often download software or restore backups from remote servers to a local server. If

In the LUnix system, the control of the permissions of a file or directory is managed by the owner and the group being sued. You can use the CHGRP command to change the file and directory to belong to the group, this way with the group name or group

Network fault diagnosis under Linux Guide Because of the more hierarchical structure of the network server, it is more complex to solve when the network fails. Let me give you a detailed description of the Linux system may

Users using Windows + Linux dual systems can modify the boot order using the following methodsI'm using Fedora.One, simple command operation1. First find the menu menuentry for Windows.# Cat/boot/grub2/grub.cfg | grep WindowsOutput:Menuentry '

Remove the ^ M symbol from the Linux text file In Linux, it is inevitable to use VIM to open some edited text files in Windows. We will find that there will be a ^ M symbol at the end of each line of the file, because the editor in DOS and the

Linux service boot settings, linux service boot Linux also has a self-starting service similar to windows, which is mainly set through the chkconfig command. It is mainly used to update (start or stop) and query the running level information of the