Notes on lwIP TCP/IP stack II: Configuration file opt.h & lwipopts.h

Catalog 1. introduction 2. Configuration opt.h description 2.1 Infrastructure NO_SYS Timers memcpy Core locking and MPU Heap and memory pools Internal memory pools SNMP MIB2 callbacks Multicast Threading Checksum Hooks (hook option) 2.2 IPv4 ARP IP ICMP DHCP AUTOIP IGMP 2.3 Call ...

Posted on Fri, 11 Oct 2019 11:38:00 -0700 by ywickham

Nmcli command learning (must, CentOS 8 defaults nmcli)

nmcli command Refer to this: https://mp.weixin.qq.com/s/y64vMJqfbtDGXcTDz6R-mQ < font color = Red > nmcli can be automatically completed, or is it relatively easy </font > Just click nmcli to display all network card information: [root@linux1 ~]# nmcli ens33: connected to ens33 "Intel 82545EM" ethernet (e1000), 00 ...

Posted on Sun, 06 Oct 2019 17:38:33 -0700 by 0riole

Testing vShere 6.7 + vCenter Server on Workstation 15

If you want to learn vSphere, you'd better build a corresponding learning environment on your computer. _________________________________ | | | vCenter Server Appliance | |________________________________| ...

Posted on Thu, 03 Oct 2019 18:52:59 -0700 by Stray_Bullet

kubernetes uses flannel network plug-in service status to display CrashLoopBackOff

Installing K8s cluster with Kubeadm, after installing flannel network plug-in, it is found that pod: kube-flannel-ds has always been CrashLoopBackOff The contents of the error report are as follows: log is DEPRECATED and will be removed in a future version. Use logs instead. I0823 03:28:21.342352 ...

Posted on Mon, 30 Sep 2019 21:40:31 -0700 by afhouston

Enter editing mode vim command mode vim practice

vim editing mode, vim command mode vim editing mode Using vim filename to enter the interface is a general mode, in which we can view, copy, cut and paste, but can not edit new content, how can we write directly? This requires entering editing mode. There are many keys to enter editing mode from general mode, but different keys enter editing m ...

Posted on Wed, 25 Sep 2019 00:31:40 -0700 by leafface

OkHttp Source Analysis OkHttpClient, Request, Call, Dispatcher

The article was first published on a personal blog https://www.nullobject.cn The public number NullObject is updated synchronously. This article mainly introduces OkHttpClient, Request, Call, Dispatcher, Response and other classes.Article based OkHttp3.14.3 Edition 0. description Last article OkHttp Source Analysis (1) Simple Analysis of Reque ...

Posted on Sun, 22 Sep 2019 07:10:34 -0700 by phpzone

Cache cache (car cleaning)

When I first came into contact with Cache, it was in WebForm. When I first came into contact with Cache, I never forgot that cache was the Pinyin for car cleaning. Client Browser Cache https://blog.csdn.net/y874961524/article/details/61419716 CDN Caching Principle https://www.cnblogs.com/shijingxiang/articles/5179032.html Aliyun CDN Open Set ...

Posted on Sat, 21 Sep 2019 07:43:45 -0700 by notsleepy

Docker Command Details and Mirror Management

Docker Command and Mirror Management: Docker images contain the file system and content needed to start the container, so they are mainly used to create and start the docker container. The Docker image contains a layer of file system called Union F ...

Posted on Wed, 11 Sep 2019 03:08:53 -0700 by sprinkles

centOS7 DNS Domain Name Resolution Service Setup - Forward Resolution

centOS DNS Domain Name Resolution Service Setup-Forward Resolution ------------------------------------ Basic Overview------------------------- The function of DNSX system in network is to maintain an address database, which records the corresponding relationship between various host domain names and IP addresses in order to provide forward o ...

Posted on Thu, 05 Sep 2019 20:24:03 -0700 by Nicoza

HttpClient/HttpURLConnection + HttpDns Best Practices

On the Android side, if OkHttp serves as a network request framework, it can gracefully integrate HttpDns because it provides a custom DNS service interface. The related implementations can be referred to: HttpDns+OkHttp Best Practices. If you use HttpClient or HttpURLConnection to initiate network requests, although you cannot directly cust ...

Posted on Sat, 06 Jul 2019 12:15:47 -0700 by andrew_U