Linux

I. SummaryUse SVN server mainly under Linux operating systemSecond, installation steps0. Verify if there is a svnserver (Svnserve--version)1. Install Svnserver (yum install-y subversion)2. Verify that the installation is successful

The socket programming under Linux basically includes TCP socket, UDP socket that is raw socket three kinds, where the TCP and UDP socket programming is used to write the application layer of the socket program, we use more, and raw Sockets are used

The first is the use of Mknod manual Create: # mknod the second is self - Create device node: using udev (Mdev) to automate the creation of device files, first of all ensure that Udev (Mdev) is supported and configured by BusyBox.Specific UDEV

Features: Copying Files or directoriesNote: The CP instruction is used to copy files or directories, such as specifying more than two files or directories at the same time, and the final destination is an existing directory, it will copy all the

1. List Linux distributions by series and describe the two lines and differences between different distributions.The current major Linux distributions are:Slackware:suseDebian:ubuntu MintRedhat:rhel CentOS FedoraContact: Because the Linux kernel

Basic information for users:/etc/passwdUser Shadow Password:/etc/shadowBasic information for groups:/etc/groupShadow password for group:/etc/gshadow/etc/passwd file explanation [[email protected] ~]#

First, overview:The kernel of the core philosophy of Linux a piece of hardware is everything files, on the Linux system, regardless of hardware, software, configuration files and so on, all in the form of files presented. General file types are:

In Linux, a variety of time formats are often used, especially in shell scripts, and the default time format is[Email protected] ~]# datewed Dec 19:43:07 CST 2016Note: If you have spaces in the stitching date format, you need to use "..." to

Linux dual NIC bindings Linux dual NIC BindingsCommon modes for dual NIC bindings:Mode1:active-backup mode, which is the main standby mode.Mode0:round-broin mode, load Balancing mode (requires switch configuration aggregation port Cisco called Port

Ll-alinux commandLS View all document namesLs-l View All CatalogsLS/ETC display the files in the ETC directoryll view the document permissions information, the last three bits are: file capacity, file date Modified, file infoll/View Document root

Requirements Description1. Add three disks with a size of 20GB SDC SDD SDE2. convert three hard drives to physical volumes and establish SDC SDD two pv asSIMPLE_VG The volume group and extends the SDE into the volume group3. Create a logical volume

User creation, modification, deletionFirst, user-createdUseradd Usermod UserdelUseradd: Creating User: Create a new user or update default new user informationuseradd [Options] ... LOGIN-u,–uid: Specifies the UID of the new user-O, with-u use, does

one. Remote ManagementUnlike personal computers, servers are generally run in the IDG room, so we don't usually have direct access to server hardware, but we control the server through a variety of remote management methods.1. Common Remote

First, command aliases:Alias cmdalias= ' COMMAND [options] [arguments] 'Example: Alias Cls=clearNote: Aliases defined in the shell are valid only for the current shell life cycle, and the valid range of aliases is only the current shell

Study reference: http://www.cnblogs.com/yuanfang/archive/2010/12/24/1916231.html1, Block equipment　block devices keep data in blocks of fixed block size, and each block is typically between 512 bytes and 32768 bytes, and disk and SD cards are common

What is squid?Squid is a relatively well-known agent software , it can not only run on Linux can also run on Windows and UNIX, its technology is very mature. The current users of squid are also very extensive. Squid and other agent software under

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1. Set PlainText password1. 1 Edit grub.conf[Email protected] ~]# vim/boot/grub/grub.conf1.2 Inserting password#boot =/DEV/SDADefault=0Timeout=5Splashimage= (hd0,0)/grub/splash.xpm.gzHiddenmenupassword=Title CentOS (2.6.32-642.11.1.el6.x86_64)2. Set

First, several major parts of the computer:Arithmetic, controller: CPUMemory: RAMInput/Output devices:Program: instruction and data compositionThe entire computational process is done by the operator.Controller: reads the instruction and reads the

First, user, group, permissions:Security Contexts: (Secure context)Any time a user initiates an action computer is the initiating process, so the process is the agent of the user acting on the computer, so the process must run as the user who