Linux

1. First to generate the server-side private key (key file):Command:OpenSSL genrsa-des3-out Server.key 1024The runtime prompts for a password, which is used to encrypt the key file (the parameter des3 is the encryption algorithm, and of course you

An order to explainCommon example:find Path-option [-print] [-exec-ok command] {} \;The directory path that the Path:find command looks for. For example, use. To represent the current directory, and/to represent the system root

Today, I suddenly wanted to play music on Linux, but when I opened it, I found a missing decoder.So went online to find a solution, said the hype, but there is a post gives a very simple method.The following content is reproduced in the networkThe

Test machine: CentOS 6.5ipaddr=192.168.1.229Rqm-qa |grep NTPNot installed, first installedYum-y Intall NTPConfiguration file LocationVim/etc/ntp.confDriftfile/var/lib/ntp/drift #这个代表上层服务与本机主板时钟之间时间差别记录在这个文件里Restrict #管理权限Restrict default kod

IfconfigRouteIpIP routeOne, ifconfig command (view or configure IP)1. View Network Connections# ifconfig \ Show all active connections, not packet-disabled devicesOr# IFCONFIG-A \ Show all active and inactive connectionsDisplays the connection for

5th Chapter System Call The operating system provides the interface mainly to ensure that the system is stable and reliable, to avoid arbitrary application. 5.1 Communication with the kernelThe system call adds a middle tier between

"Linux kernel design and implementation" Chapter 2 reading notes one, get the kernel source code 1. Using GitWe used the GIT approach in our previous studies.git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitUpdate Branch

"Linux kernel Design and implementation" Chapter I.Chapter One introduction to the Linux kernel:1.3　　 Introduction to operating systems and kernelsOperating System: The system contains the operating system and all the applications running on it. An

Linux various IPC mechanisms (2011-07-08 16:58:35) Original Address:Linux various IPC mechanisms (RPM)Jianpengliu The original post on the IBM Developerworks website, is a series of articles, author Zheng Yanxin,

Linux system Hard links and soft links"Concept of linking"in the There are two types of links in a Linux system: one for hard linksand another for soft links or symbolic links (symbolic link or soft link). Ln This command is the command to create a

My name is Zhang Zhiqiang, in the old boy education to learn Linux operation and maintenance to graduate, I must achieve the goal is, after-tax monthly salary of 10K. In order to achieve this goal I take the following measures:First: Get up 6

Yum (full name Yellow dog Updater, Modified) is a shell front-end package manager in Fedora and Redhat and SuSE. Based on RPM package management, the ability to automatically download the RPM package from the specified server and install, can

Linux tar command parameters and usage details--linux Package backup command tarCommandGNU version of the Tar-tar file management program. The meanings are described belowtar [-cxtzjvfppn] files and directories .... Common parameters: -C: Establish

Reproduced in: http://www.itxuexiwang.com/a/liunxjishu/2016/0225/167.html?1456482565As shown is the three stages of TCP. 1,TCP three handshake. 2,TCP data transfer. 3,tcp's four waves.SYN: (Synchronous sequence number, Synchronize Sequence Numbers)

just last October, occasionally in the Linux technology group to see others to sharethe Linuxthat's the way to learn ., curious on the point to see, then read the home, suddenly found Liu Yan teacher said to the heart, and then looked carefully at

First create a directory to see the permissions: - drwxrwxr-x 3 huangxm huangxm 4096 :/ drwxr - 12288 - -- : /drwxrwxr-x 2 huangxm huangxm 4096 : test/Then we change the permissions to 444, that is, all R permissions - drwxrwxr-x 3

SECURECRT on Linux and Windows local file transferSECURECRT on Linux and Windows local file transferSecureCRT and Sshclient different is, securecrt no graphic file transfer tool, but also does not affect, with the command to achieve, in fact, will

Implementation of simple thread pool in Linux Technical Background of Thread Pool In object-oriented programming, it takes a lot of time to create and destroy objects, because creating an object requires obtaining memory resources or other resources.

Linux scheduled task crontab and Linux task crontab Crontab scheduled task format 1 * command2 column 1st indicates minute 1 ~ 59 every minute, use * or */1 to indicate 3, 2nd columns to indicate hour 1 ~ 23 (0 indicates 0 points) 4 3rd columns

Install MongoDB and PHP extensions in Ubuntu MongoDB is a scalable and high-performance open-source NoSQL document database. It is mainly developed using C ++. For document storage, full index support, replicable and high availability, automatic