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<!-- this file is available at https://git.teknik.io/anthony_/cit160-notes -->
# December 10 - Overview (Final Study)

## Overview

- Bash
- Loops
- While
- For (for each)
- Test
- Conditional
- Commands
- ; | && || &
- Subshell
- (( ))
- [[ ]]
- { }
- ( )

- Shell
- Procress
- Environment
- Return Values
- FILE Descriptors

- FILE System
- Permissions
- Owners
- Groups
- etc
- $PATH

- CLI
- LOCAL: touch, cd, mkdir, rmdir, rm, ln
- NETWORKING: nc, curl, ssh, git, netstat, ping, traceroute, nslookip, dig, hostname
- DNS: checkzome, checkconfig, restart

- Network
- Connection
- Protocols
- DNS
- Zonefiles
- SOA
- PTR
- MX
- CN
- ANAME
- /etc/resolv.conf
- BIND
- MAIL
- mbox format
- Mail User Agent
- Mail Submission Agent
- Mail Transmission Agent
- Mail Delivery Agent
- HTTP
- Verbs
- Request
- Response
- Naming
- URL, URN, URI

- Encryption
- Private and Public keys (P4I)
- RSA

- Encoding
- base64

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