Linux

1, use df-h , check the current disk[Email protected] ~/$DF-hfilesystem Size used Avail use%mounted on/DEV/SDA1 119G 79G 34G -% /None4.0K0 4.0K0%/sys/fs/Cgroupudev7.8G 12K7.8G1% /Devtmpfs1.6G1.1M 1.6G1% /Runnone5.0M 0 5.0M 0%/run/Locknone7.9

As is known to all, Windows and Linux are currently the most popular 2 operating systems. Windows system for ordinary users, it is the advantage of a graphical interface, easy to use, the threshold is very low, easy to get started, so, Windows

Linux Time synchronization Server SetupNTP(Network Time Protocol) is used to make the computerTime Synchronizationudp protocol 123 The port provides services externally, it can make the computer to its server or clock source (such as quartz clock,

How to do basic optimization after installing Linux system? 1, Yum Source 2, SELinux3, close firewall 4, thin boot service 5, use sudo to manage files 6, Chinese character set display 7, Time server synchronization 8-9, SSH remote connection 10,

user and passwd filesfeatures of the/etc/passwd file/etc/passwd file specific meanings for each fieldShadow Filefeatures of the/etc/shadow file/etc/shadow file specific meanings for each fieldgroups and group filesfeatures of the/etc/group

Linux displays memory size in GB[Email protected]:~$ free-g Total used free shared buffers Cachedmem: 2 1 1 0 0 0-/+ buffers/cache: 0 2Swap:

Brief introduction:Memory-mapped files are somewhat similar to virtual memory, where a memory-mapped file preserves an area of an address space and submits the physical memory to this zone, except that the physical memory of the memory-file mapping

Process GroupCollection Process group ID: positive integer for one or more processestwo functionsgetpgid (0) =getpgrp ()Eg: shows the process group ID of the child process and the parent process1 #include 2 #include 3 #include 5 int main () {6

Copyright Notice Updated: 2017-05-08Bo Master: LuckyalanContact: [Email protected]Statement: Draft not forget to dig well man, reproduced please indicate the source!1 Article IntroductionThis article describes the Linux command CD.2 Development

Here is a detailed explanation of how to configure a static IP in a VMware virtual machine.is a sketch that outlines the VMware network situation. A network segment refers to an IP range, such as a community building and another residential building,

There are two RCU implementations in kernel, one is tiny RCU and the other is tree RCU. Both of these RCU were formerly classic RCU.If you want to read the classic RCU implementation code, you must find kernel 2.6.26, because in kernel

Content Brief Introduction1 The first part of the third lesson: Test and install Ubuntu 2, the first part of lesson four: disk partitioning test and install UbuntuHello everyone, after the first two more biased theory (whether it is

0. PrefaceThis article summarizes how to use the echo command to write content to a file, such as using the ECHO directive to overwrite the contents of a file. Use the echo command to append content to a file. Use the Echo command to append tabs to

IntroducedOur production servers often do raid storage, but can you guarantee performance and data security by simply doing raid? The answer is no, we generally recommend the use of battery-protected raid cards, so as to ensure that performance can

Made the next FTP server, basically can encounter problems are encountered-. -!First, step:1. Installing the VSFTPD Packagesudo Install vsftpd2. Open the configuration fileVim/etc/vsftpd.conf3. Modifying parametersSome parameters can be removed from

As a maintenance engineer, the responsibility is not urgent to quickly locate and deal with problems, but to prevent the situation, this is our value, is not?(i) Solution strategyWhen interviewing and being interviewed, we need to pay attention to

Recommended two remote management Linux tools (Windows-based Systems )1, XshellBaidu Encyclopedia: Xshell is a powerful, secure terminal emulation software that supports SSH1, SSH2, and Microsoft Windows platforms TELNET Protocol. Xshell can be

In Linux, the routing function is enabled. in linux, the routing function is enabled.   There are two methods: 1. Temporarily enable (restart is invalid) Echo 1>/proc/sys/net/ipv4/ip_forward Or Vim/proc/sys/net/ipv4/ip_forward, change 0 to 1,

Linux errno, linuxerrno Linux/include/uapi/asm-generic/errno-base.h# Ifndef _ ASM_GENERIC_ERRNO_BASE_H# Define _ ASM_GENERIC_ERRNO_BASE_H # Define EPERM 1/* Operation not permitted */# Define ENOENT 2/* No such file or directory */# Define ESRCH 3/*

Build the Linux svn service and build the linuxsvn Service1. Install svn in yumYum-y install subversion2. view the installed svn versionSvnserve -- version3. Create a code library1. create a directory named mkdir-p/home/test2. create the version