[apue] use Ctrl+S to stop the output without suspending the foreground process

Before that, we always knew to use Ctrl+Z to suspend the foreground process to prevent the process from running, and then we can switch the background process to the foreground through the job control (jobs / fg N) of the shell to continue running. Recently, I learned a new method. For foreground processes with console output, you can use Ctrl+ ...

Posted by Kurrel on Sat, 25 Jan 2020 07:07:36 -0800

Server upgrade to centos8 site configuration - PHP and mysql upgrade from 5.6 to php7 and msyql8

linux centos8 installs php7 nginx1.4 mysql8, runs PHP website, configures each module from scratch Choice between CentOS7 and centOS8 At present, the default centos system version of major cloud servers in China is still 7. Currently, there is no centos supporting system. The default of foreign cloud server manufacturers is 8, such as vultr. P ...

Posted by matrixd on Fri, 24 Jan 2020 22:18:17 -0800

CentOS7 Nexus2 private server building

Brief description: In the office environment, Nexus private server is required to provide caching service for development. This blog simply records the steps of building Nexus 2. X private server in the office environment Nexus website: https://www.sonatype.com To download the OSS 2. X package: https://download.sonatype.com/ ...

Posted by garblar on Wed, 22 Jan 2020 09:36:19 -0800

CentOS 7.6 builds nginx 1.16.1 and uses the upstream check module

Environmental description: host name Operating system version ip nginx version httpd version Remarks nginx Centos 7.6.1810 172.27.34.41 1.16.1 / nginx server web01 Centos 7.6.1810 172.27.34.161 / 2.4.6 web server web02 Centos 7.6.1810 172.27.34.162 / 2.4.6 web server web03 Centos 7.6.1810 172.27.34.163 / 2.4.6 web server 1, Brief ...

Posted by jungalist on Wed, 22 Jan 2020 07:36:22 -0800

Android system.img ext4 format

The image file of Android system.img is in the format of sparse ext4 image, Space header format: typedef struct sparse_header { __le32 magic; /* 0xed26ff3a */ __le16 major_version; /* (0x1) - reject images with higher major versions */ __le16 minor_version; /* (0x0) - allow images with higer m ...

Posted by ukphoto on Wed, 22 Jan 2020 06:10:36 -0800

FIO performance test data drawing

A picture is worth a thousand words. This is especially true when testing performance. For the results of fio tests we often use, how can we quickly generate charts? Ensure that the FIO command can record performance data Refer to the following command: fio -filename=/dev/nvme2n1 -thread -numjobs=1 -iodepth=64 --bs=4K -direct=1 --rw=write -ioe ...

Posted by egg82 on Tue, 21 Jan 2020 09:58:20 -0800

Operation and maintenance | Elastic Stack ELK installation and deployment

Preface ELK is the abbreviation of three kinds of software, which are composed of Elasticsearch, Logstash and Kibana. In the process of development, there are new members, Beats, which form Elastic Stack. So, ELK is the old name, and Elastic Stack is the new name. The entire Elastic Stack technology ...

Posted by deezerd on Tue, 21 Jan 2020 08:57:35 -0800

KVM Management Tool WebVirtMgr

WEB Management Tool WebVirtMgr WebVirtMgr is a libvirt-based Web interface for managing virtual machines.It allows you to create and configure new domains and adjust the resource allocation for domains.The VNC viewer provides a complete graphical console for the guest domain.KVM is currently the only supported hypervisor for virtual machines. ...

Posted by tomato on Mon, 20 Jan 2020 19:45:51 -0800

4.5 billion data migration records follow-up-to-day data volume levels of 10 million to clickhouse

4.5 billion data migration records follow-up-to-day data volume levels of 10 million to clickhouse Related Document Address flume Reference Address waterdrop Reference Address clickhouse Reference Address kafka Reference Address The environment log is on one server and the clickhouse cluster is on the other. thinking Previously, when m ...

Posted by gszauer on Mon, 20 Jan 2020 18:52:36 -0800

How a case deploys a python project to a linux server

[External chain picture transfer failed, source station may have anti-theft chain mechanism, it is recommended to save the picture and upload it directly (img-6ljXK6PO-1579487161655). (]) 1. Case Background Write a script with Python and deploy it to a server in Linux environment. Since the server li ...

Posted by MadnessRed on Sun, 19 Jan 2020 18:37:50 -0800