Linux

The basic time service provided by the Linux kernel is calculated as the number of seconds elapsed since the international Standard Time of January 1, 1970 00:00:00, denoted by the time_t type, called "Calendar Time", time_t is usually defined as

20 commands that are very useful for novice LinuxSlwang 2014.4.191, LSList Directory contents lists the contents of a folderLs-l//List The contents of a folder in detail mode (long listing fashion)D: Representative DirectoryRwxr-xr-x: The

Server-side operating system: CentOs 5.8 Client: SecureCRT5.1.3 First step: The generation of the key pair. Create a new connection in the SECURECRT. Protocol SSH2 Hostname Enter the host IP you want to connect to. Port enter the port number

Http://www.cnblogs.com/silverwings/archive/2010/08/02/1790801.htmlUsing this to do the system service, but led to the Apache image Service can not start???This method was successfully tested on RET Hat Enterprise Linux Server 5.5. The first thing

Linux system has several running levels:0-shutdown1-single User2-multi User without Internet services3-multi User with Internet services4-unused and Reservered5-gui6-rebootWe can use the ' Init * ' command to change running level of the system.To

Server ip:192.168.4.51. Installing the Samba service package[[Email protected] Desktop]# yum-y Install Samba[[Email protected] Desktop]# rpm-q SambaSamba-3.6.9-164.el6.x86_64[Email protected] Desktop]# rpm-q samba-client2. Modify the configuration

Configure static routes under LinuxExperimental topological diagram650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/45/DF/wKiom1Ps1HKh-6JrAAD5V1TpcqE466.jpg "title=" Experimental topology. png "alt=" wkiom1ps1hkh-6jraad5v1tpcqe466.jpg "/>1,

1. How does the shell script debug?The first time I wrote 300 lines of shell script, such a big lump how to debug ah? Do you want to take it out and test it?SH [-NVX] Scripts. SH options and Parameters:-n : Do not run script, query only the syntax

One, the script file query:1, command format: which [-a] command; -A: Lists all, not only the first.Example: which ifconfig;Note: Because different user paths are different, there may be differences in the results.Second, the name of the search:1,

Common commands: Cat, TAC, NL, more, less, head, tail, OD ...First, directly view the contents of the file: Cat, TAC, NL 1. cat [-abentv] File nameParameter description:-N: Prints the travel number, along with a blank line number.-B: Prints the

Toss the most of the day, finally fix, this can be written down.My Linux version: CentOS 6.5The main installation sequence is also the official website instructions: http://jekyllrb.com/docs/installation/, so install Jekyll before installing Ruby,

Disk Management RAID1POCEnvironmentin the Linux Added on 2 block of New 30GB HDD Start650) this.width=650; "title=" Snap410.gif "src=" http://s3.51cto.com/wyfs02/M01/45/FE/ Wkiom1ptkdhislicaacaaqoumpe700.gif "alt=" Wkiom1ptkdhislicaacaaqoumpe700.gif

Net.ipv4.tcp_fin_timeout = 2Net.ipv4.tcp_tw_reuse = 1Net.ipv4.tcp_tw_recycle = 1Net.ipv4.tcp_syncookies = 1Net.ipv4.tcp_keepalive_time = 600Net.ipv4.ip_local_port_range = 4000 65000Net.ipv4.tcp_max_syn_backlog = 16834Net.ipv4.tcp_max_tw_buckets = 360

Provided that the core and base two groups have been installed # cat/etc/redhat-release Red Hat Enterprise linux Server release 6.4 (Santiago) # uname-a Linux Localhost.localdomain 2.6.32-358.el6.x86_64 #1 SMP Tue Jan 11:47:41 EST x86

Operating system: CentOS 6.5, minimized installationInstall the system after the installation of KVM virtual machine, when all the environment installed, the network card configuration file is also complete the correct configuration, restart the

Linux Disk Management ~~~~raid1Experimental environmentAdd 2 30g -size disks to the Linux operating system's pcImplementation steps:1.0Partitioning a disk[[Email protected]~]# fdisk/dev/sdbDevice contains neither a valid dospartition table, nor

Install MPlayer in CentOS 7.0 and centos7.0mplayer The built-in player neither rmvb nor mp4 can play the video, nor can it find the decoder.CentOS7epel cannot be installed, so there is no rpmfusion, so I decided to compile mplayer myself First, you

Add a sudo user under CentOSI. sodo usage 1.1 about how sudo Sudo is a linux system in which non-root users can escalate their permissions to execute some special commands, it allows common users to temporarily obtain the root permission without

Modify the CentOS startup level Cd/etc Viminittab Id: 5: initdefault:After the system is installed, the system runs at 5th levels. After the system is started, the system directly enters the graphical interface, instead of starting the graphical

How can I forget the root password of mysql?Step 1: (stop running mysql) [root @ CentOs5 ~] # Service mysqld stopStopping MySQL: [OK] Step 2: Use the "-- skip-grant-tables" parameter to restart mysql[Root @ CentOs5 ~] # Mysqld_safe --