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Tag: proxy

Kubernetes笔记(7)—— 搭建”k8s on Mesos”注意事项

在本地搭建k8s on Mesos项目时,Mesos client脚本要以root身份运行。另外如果本地环境用到了proxy,一定要注意可能(不确定是否有例外,比如也许取决于你所使用的proxy或操作系统)需要把k8s或者MesosIP地址加入到no-proxy/NO_PROXY环境变量中。具体可参见下列issues
The kubernetes on Mesos can’t run successfully on the same machine
Why does “km controller-manager” think it is an invalid event?
The “km controller-manager” command doesn’t work successfully behind proxy.

 

《HTTP:The Definitive Guide》笔记(3)—— Web component

(1)Proxy:HTTP intermediaries that sit between clients and servers.A proxy sits between a client and a server, receiving all of the client’s HTTP requests and relaying the requests to the server (perhaps after modifying the requests). These applications act as a proxy for the user, accessing the server on the user’s behalf.

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(2)Cache:A web cache or caching proxy is a special type of HTTP proxy server that keeps copies of popular documents that pass through the proxy. The next client requesting the same document can be served from the cache’s personal copy.

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(3)Gateways:Gateways are special servers that act as intermediaries for other servers. They are often used to convert HTTP traffic to another protocol. A gateway always receives requests as if it was the origin server for the resource. The client may not be aware it is communicating with a gateway.

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(4)Tunnels:Special proxies that blindly forward HTTP communications.Tunnels are HTTP applications that, after setup, blindly relay raw data between two connections. HTTP tunnels are often used to transport non-HTTP data over one or more HTTP connections, without looking at the data.

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(5)Agents:Semi-intelligent web clients that make automated HTTP requests.User agents (or just agents) are client programs that make HTTP requests on the user’s behalf. Any application that issues web requests is an HTTP agent.

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