Linux

SS Command:Format: ss [OPTION] ... [FILTER]Options:-T:TCP protocol Related-U:UDP protocol Related-W: Bare Socket related-x:unix Sock Related-l:listen State of connection-A: All-N: Number format-P: Related programs and PID-E: Extended information-M:

(1) View Run level command description:#Runlevel to view the levels that are running#Who –r view the current level of the run and the level of the last run9.5-2.1 can see that switching between different levels and then running commands to see

Bash Environment Configuration Profiles : divided by effective scope, two categories: Global configuration file:/ETC/PROFILE,/ETC/PROFILE.D/*.SH,ETC/BASHRC Personal configuration file: ~/.BASH_PROFILE,~/.BASHRC Classification by function: two types:

Linux Network Configuration                                       (CENTOS6CENTOS7) Article OneThe Ifconfig command is used to view and configure network devices. Network environment changes This command configures the network

There may be two situations in which there is space under LinuxYou can view disk space consumption by command df-h, and actually view the file (block) occupied by the disk block Df-i view the occupied (inodes) disk block and index node of the index

1. Installation CentOS (I use CentOS7) under the Yum command to complete the installation easily To test whether the installation was successful: 2. Build the Repository Create SVN Data directory (Subversion defaults to/VAR/SVN as the root of the

First of all, VirtualBox must be used Network bridge, because the NAT mode and internal mode virtual machine is not real in the network, the host and any machine in the network can not view and access to the existence of vhost.Step1 Installing Samba#

Samba is a free software that implements the SMB protocol on Linux and UNIX systems, consisting of servers and client programs. SMB (Server Messages block, information service blocks) is a kind of communication protocol for sharing files and

Encryption/Decryption PlainText, ciphertext Common methods of encryption: Symmetric encryption Public Key cryptography: The public key is generated in the private key; One-way encryption: The document can be generated by the plaintext

8. Other Linux commands:This section only learns other commands under the Linux system, which have TTY, STARTX, type and so on. 8.1 TTY:Display current terminal equipment . In the Linux operating system, all peripheral devices have their names and

Linux DD Create EXT3 partition1. Create a 100M fast file using DD.Command: DD If=/dev/zero of=/tmp/test.ext3 bs=1024 count=512000Description: DD is a very useful command under Linux/unix, which is to copy a file with a block of the specified

with the right Linux interest, I came to the brothers even! To learn this has been more than a month, it is time to write something to record in the brother Lian's drip. After so many years of learning, I feel that the process of learning is boring,

First, homework (exercise) content:1, review the contents of this course;2, summarize the Disk Management and file system Management design of the use of various commands, and note certain examples;3, create a 10G file system, type EXT4, require the

Linux Summary bash features Command history: Use command: History Environment variables: Histsize: The number of bars recorded in the command history buffer, which defaults to 1000; Histfile: Record the

First, the Linux programming environment1. Program Editor:Command mode:I (insert): insertingA (after): Insert laterX (): Delete characterDD: Delete a row: line number is specified:/string: Search string: Q, go back: WqNDD: deleting n rowsYY: Copy

VNC configuration in UbuntuBy configuring the SERVER as a vnc server, other hosts can log on to the SERVER graphically.It is easy to configure the vnc server in ubuntu as follows:Server:1. First install the VNC service program:Shell code$ Sudo

SSH password-free Login I had a hard time logging on via SSH without a password. It would be easy to use the root permission, but it is not formal. After all, I am a professional expert ~~ So there are a lot of strange problems. When we solve them,

Install and configure Spark in CentOS 7.0 Installation environment:Virtual Machine: VMware®Workstation 8.0.1 (network bridging)OS: CentOS 7JDK: jdk-7u79-linux-x64.tarScala: scala-2.11.7Spark version: spark-1.4.0-bin-Hadoop2.4User: created when

Simple Cobbler installation and configuration The Cobbler installation method is similar to the traditional method, but it is relatively simple to configure and provides a WEB interface. However, compared with the O & M engineer, the WEB is not

Install PHP environment and reverse proxy in Ubuntu 14.04Install Apache on the PHP environment and reverse proxy in Ubuntu 14.04 $ sudo apt-get install apache2Install php $ sudo apt-get install php5 libapache2-mod-php5Install mysql $ sudo apt-get