Linux

"DNS details in 06-linux (iii)" Nine, configure the master-slave DNS server to implement domain name resolution fault tolerance 1. Experimental environmentZhangyujia.com (192.168.80.100) is the primary zone, and COM (192.168.80.200) is

1. Compression and packagingCompression: Use a more space-saving record to record file data and reduce the amount of file usage. Advantage: The same capacity can store more data, and the amount of data at the time of transmission decreases, thus

umask --Indicates the default permissions when creating a file (that is, it does not need to be set when creating a file) For example, we found under root user , touch A, the default permission for file A is 644 under Normal user ,

First, userLinux users are divided into administrators and ordinary users, and ordinary users are divided into system users and custom users. You can view/etc/passwd to see it. as follows:

TensorFlow is a deep learning framework with two installed versions to choose from: TensorFlow with the CPU support is only recommended to install this version because it is easy to install and very fast (installs in just 5-10 minutes).

System installation of operation and maintenance automationSystem startup process (see the previous document for details):Bootloader-->kernel (INITRAMFS)-->rootfs-->/sbin/initAnaconda: System Installation Tool (Install Operating system wizard)GUI:

Simple Command Linux lsList files in the current file directory (only file names are displayed) pwdDisplays the path of the current action cdJump path ls -aThe hidden file can be displayed, and the command to create a hidden

Cron Introduction The Linux system has a process cron dedicated to managing timed tasks, typically set to boot, and can be viewed with the following commands ps aux | grep cron The cron process reads the/etc/crontab file every

* * Common commands for basic Linux operations (III)* * Linux PackagesLinux software is divided into "source package" and "binary package"SOURCE Bundle: Free, open sourceBinary Package: System default package, ie RPM package (last section we

First, installation and landing commands1. Enter the graphical interfaceStartX2. Enter the graphical interfaceInit 53. Enter the character interfaceInit 34. LoginLogin5. Shut down the machinePoweroff-P Turn off the power when shutting down the

To continue our Yum tool application journey, the Yum tool is convenient because there is a convenient online cloud library, we may not be able to link the Internet in the actual work, or we want to install the program of the original source so can

1, root directory/(root user's home directory)Each file and directory is started from the root directory.Only the root user has write access to the directory.It is important to note that/root is the home directory of the root user, while the user's

How to Use Tsung to test the Openfire service and tsung to test openfire 1. Install erlang, Tsung, and other software on the machines used for testing and Openfire service machines, with the same location and version 2. Run the Openfire service,

PyRadio-network radio player for Ubuntu command line PyRadio is an open-source-based network-based radio player that runs in the command console. The software is implemented in Python and played using mplayer or VLC Media. Images and truth

Extremely easy-to-use Vim configuration and Vim ConfigurationHttps://github.com/ma6174/vim-deprecatedsimple installation tips: Open the terminal and execute the following command to automatically install it: wget -qO-

Use molly-guard to protect your Linux/Unix machines from being mistakenly shut down/restarted I am going! Again. I thought I was logged on to my home server. As a result, the database server is restarted. In addition, I sometimes enter the

Introduction to Docker password-related information management Containers are changing our views on applications and infrastructure. No matter whether the amount of code in the container is large or small, the container architecture will change the

The ibdata1 file of MySQL is too large and the mysqlibdata1 file is too large.Handling the problem that the ibdata1 file of MySQL is too large I encountered a MySQL database installed in yum when installing zabbix monitoring. Later I used it for a

Access_log log file and definitions of ip, uv, and pv, access_loguv Accesslog is a log generated by apache, nginx, and other web services. It corresponds to each request of a webpage and contains a large amount of information, after analyzing the

Logstash installation configuration, System: CentOS7.2 Address: https://www.elastic.co/guide/en/logstash/current/installing-logstash.html#installing-logstash 1. Create logstash. repo under/etc/yum. repos. d/and configure the YUM source address as