- Node - a physical or virtual machine that hosts services
- Nodes also referred to as members.
- Examples
- Your computer
- An AWS EC2 instance
- A bare metal machine in your private data center
- Service - executing software that provides utility via an interface
- Typically long-lived process listening on a port(s)
- Examples
- A web server (nginx, apache, iis)
curl -s -o /dev/null -w "%{http_code}" https://www.yahoo.comto print only the http status code.curl -s -D - -o /dev/null https://www.yahoo.comto print only the response headers.-D -dump headers to stdout indicated by --o /dev/nullsend output (HTML) to/dev/nullessentially ignoring it
- https://everything.curl.dev/usingcurl/verbose/writeout
- https://codeahoy.com/general/curl-display-request-response-headers
Algorithm Types
Encryption Algorithms (AES, DES, RSA...)
Authentication Algorithms (MD5, SHA-256, SHA-512, HMAC ...)
Security
Encryption Types:
Symmentric Single key (K) will be used for Encryption and Decryption (AES, DES)
Asymmentric Two keys (KU, KR) will be used for Encryption and Decryption (RSA)