One of the illusions that programmers at big companies easily fall into is mistaking platform capabilities for their own abilities. In a large team, we should not focus only on our own little patch of ground; we need to understand every part of the platform. On one hand, this helps us make better use of the platform’s features; on the other, it helps our own technical growth.

Compiled from the “Development Tips” series, a roundup of common problems and solutions in Docker usage and operations. 1. Basic Docker Machine Commands Create the my-vm-name virtual machine 1 docker-machine create --driver virtualbox my-vm-name List all docker-machine instances 1 2 3 4 docker-machine ls NAME ACTIVE DRIVER STATE URL SWARM

Compiled from the “Development Tips” series, collecting common problems and solutions in CentOS server operations. 1. Upgrading the Docker Version Uninstall the old version of Docker 1 2 3 4 5 6 $yum remove docker \ docker-common \ container-selinux \ docker-selinux \ docker-engine \ docker-engine-selinux Images, containers, data, and networks stored in /var/lib/docker/ are all preserved.

1. What frp Is frp is a high-performance reverse proxy application. It provides: Using a machine behind a private network or firewall to expose http or https services to the external network For http and https services, it supports domain-based virtual hosts and custom domain binding, so multiple domains can

1. Replacing the Repository Mirror First, back up the official repository. 1 mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup Download the new repository to /etc/yum.repos.d/ CentOS 5 1 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo CentOS 6 1 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo CentOS 7 1 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo Generate the metadata cache. 1 yum makecache 2. Accessing NTFS File Systems The Linux kernel currently only supports reading Microsoft’s NTFS file system.