Ben Chuanlong Du's Blog

It is never too late to learn.

Proxy for sudo

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

You can setup proxy in a terminal by export environment variables http_proxy and `https_proxy'.

export http_proxy='proxy_server:port'
export https_proxy='proxy_server:port'

However, you might find the exported environment variables are …

Tips on Network Protocols

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

TCP/IP and UDP/IP are low-level data transfer protocols.

HTTP, FTP, SMTP, WebSocket are high-level data transfer protocols.

WebSocket persists a connection and use it for bidirectional data transfering. It …