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Linux command class tail The most commonly used tail -f tail -300f shopbase.log #Count down 300 lines and enter the real-time listening file writing mode grep grep forest f.txt #File lookup grep forest f.txt cpf.txt #Multi file lookup grep 'log' /home/admin -r -n #Find all files that match the keyword in the directory cat f.txt | grep ...

Docker Install Docker Uninstall old version sudo apt-get remove docker docker-engine docker.io containerd runc Installing using a repository Before installing Docker engine community on the new host for the first time, you need to set up the Docker repository. After that, you can install and update Docker from the repository. Set up repo ...

Introduction: Hot update is to add new functions to the game or fix bug code without restarting the server. The fast iteration speed of game update has given birth to the demand for hotter technology. In the game projects I have experienced, whether it is the server or the client, the version update is around hotter update. Especially now th ...

The article is very long. It is recommended to collect it and read it slowly! Java high concurrency enthusiast community: Crazy maker circle Here are some valuable learning resources: Free classic books: Java high concurrency core programming (Volume 1) Necessary for interview + necessary for large factory + necessary for salary increase Gan ...

Before, Jenkins was generally needed to realize automatic packaging deployment. However, Gitlab's CI/CD function can also be deployed automatically, and the operation is simpler. If you are also using Gitlab as a Git repository, you might as well try its CI/CD function. 1, Installation To realize automatic deployment through Gitlab's CI/CD fu ...

brief introduction In the last article, we mentioned how to configure TLS in netty to support http2. In fact, TLS is not a mandatory requirement of https. It is just a recommended standard. In addition to TLS, how do I set up netty to support http2? Let's have a look. Basic process netty supports http2 in two cases. The first case is to use ...

Basic concepts of Web Static web The data provided by html and css to everyone will never change Dynamic web The information provided to everyone will change. Everyone will see different information at different times and places; For example, Taobao; The technology stack includes servlet, jsp, asp and php advantage: web pages can be update ...

Performance test of each protocol layer Forwarding performance hping3: as a SYN attack tool, but it is more used as a performance tool to test the processing ability of network packets. Pktgen: high performance network testing tool pktgen provided with Linux kernel. Pktgen supports a wealth of custom options to facilitate the constructi ...

VMware DHCP Service and VMware NAT Sevice           After vmware is installed, these two network services will be installed on the host by default. DHCP is used for IP allocation and NAT service is used for address translation. It is only required in NAT mode. Adapter VMnet8 and Adapter VMnet1 on the host   &nbs ...

Remember to turn off the firewall and selinux. The number of cpu cores should be at least 2 Configuration resolution [root@k8s-master ~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.153.148 k8s-master 192.168 ...