002.OpenShift installation and deployment

I. description of preconditions 1.1 overview of installation preparation Red Hat OpenShift container platform is composed of Red Hat as RPM package and container image. The RPM package is downloaded from the standard Red Hat repository (Yum repository) using the subscription manager, and the container image is from the Red Hat private reposit ...

Added by jcantrell on Fri, 19 Jun 2020 06:48:12 +0300

RHEL8 teaching environment virtual machine installed on VMware Workstation

When installing the Red Hat Enterprise Linux 8 teaching environment, students need to install the environment into a virtual machine to practice on their laptops. VMware Workstation is generally recommended to host the entire teaching environment. Get ready: 1) mobile hard disk 2) USB disk above 16G 3) RHEL8 teaching environment software S ...

Added by roots on Wed, 13 Nov 2019 21:43:21 +0200

nginx smooth (no restart) upgrade

1. As for upgrading and installing nginx third-party modules, you need to check the version of nginx installed and the compiled parameters. [root@ittestserver1 opt]# /usr/local/nginx2/sbin/nginx -V nginx version: nginx/1.10.3 built by gcc 4.4.7 20120313 (Red Hat 4.4.7-16) (GCC) built with OpenSSL 1.1.0e 16 Feb 2017 TLS SNI support enable ...

Added by youscript on Thu, 31 Oct 2019 09:31:56 +0200

Deep understanding of swapper processes in perf reports

1. Preface 1. When perf monitors the system calls of the process, a large number of swapper processes will appear 2. The official description of the process is that swapper is executed when no other tasks are running on the CPU.In other words, swapper means that the CPU did nothing and ran to rest 3. This article will observe the performance ...

Added by Kold on Sun, 29 Sep 2019 05:41:43 +0300

python foundation (py3.6 installation, annotations, input and output, variables, data types, arithmetic symbols)

python installation python3: 1. Get the source package (3.6) - > Download it on the official website (www.python.org) 2. tar zxf Python-3.6.4. tgz-C/opt/# decompression installation package 3. Enter the decompressed directory to compile and inst ...

Added by DeathStar on Mon, 02 Sep 2019 07:41:39 +0300

Set up web services to implement multiple virtual hosts. Host/user based access control

content 1. Set up web services to implement multiple virtual hosts 2. Host-based access control 3. User-based access control 1. Set up web services to implement multiple virtual hosts www.xiaoming.com RHEL6 httpd-2.2.15 RHEL7 httpd-2.4.6- The key configurations are as follows: To use the virtual host feature, you need to turn on ...

Added by Rianna on Wed, 12 Jun 2019 19:22:11 +0300