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1. Mount system CD 2. Mount the CD to make the rpm package in the CD available Create CD mount point directory [root@localhost ~]# mkdir /mount Mount CD [root@localhost ~]# mount /dev/cdrom /mount mount: /dev/sr0 is write-protected, mounting read-only After mounting, you can see the Packages directory of the rpm package in th ...

Ubuntu 18.04 configure domestic image source Modify profile Manual change Open / etc/apt/sources.list with a familiar editor, such as vi /etc/apt/sources.list Take ubuntu 18.04(bionic) as an example to copy and replace all contents in sources.list( Use Alibaba cloud image): deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted univ ...

1. Directory structure Everything starts from the root '/', which is the vertex of all directories 2. Relationship between partition and directory One by one correspondence between partition and directory in Windows Directories and partitions in Linux are separate. Different disks are represented by letters Different zones are represented by ...

Problem description Restart EMQ by operating back and forth on a server. During cluster and exit cluster operations, the following errors are reported in the log. EMQ uses rpm command to install, but it can't locate relevant problems. 2018-04-27 10:13:02.032 [error] <0.1274.0> Supervisor emqttd_sup had child emqttd_bro ...

1. Introduction Definition OpenVPN is a software package for creating virtual private network encryption channels, originally written by James Yonan.OpenVPN allows created VPNs to authenticate using public keys, electronic certificates, or user names/passwords. It makes extensive use of the SSLv3/TLSv1 protocol function library in the Ope ...

1. What is a Dockerfile Dockerfile is a description file for creating a custom Docker image. We can write an instruction in the Dockerfile to control what the image needs to do. The instructions in the Dockerfile are detailed below. 2. Four Functional Partitions of Dockerfile 1. Basic Mirroring Declare the base image for a custom image F ...

Because there is a. spec file in the haproxy package, we can use the rpm command to build the ha rpm package ourselves: 53 yum install rpm-build -y 57 rpmbuild -tb /usr/src/haproxy-1.7.3.tar.gz 58 yum install pcre-devel -y 59 rpmbuild -tb /usr/src/haproxy-1.7.3.tar.gz 60 yum install gcc -y 61 rpmbu ...

The previous article "linux introduction series 15 - vsftp services for file transfer" explained file transfer, and this article continues to explain the knowledge of file sharing. File sharing is very common in life and work. For example, different members of the same team need to maintain th ...

1. Installation dependency 1.1 install jdk # View the installable version of jdk yum -y list java* # Select the required version to install yum install -y java-1.8.0-openjdk-devel.x86_64 # View version information java -version # View installation location which java 1.2 install git # Install git ...

API: application program interface ABI: application binary interface The ABI file of linux system is in ELF format The ABI file of windows system is in the form of exe and msi System level development language: c/c++ Works: httpd, vsftpd, nginx Application level development: java/python/php java works: hadoop, hbase python works: openstack It's ...