Base Name Manipulations

• $SHELL Names
• Concatenate LOGs
• Python Base Names
• PHP Base Names
• Path List

CentOS8x Stream Administration

• Server Installation
  • Key CentOS features
  • Provision CentOS Server
  • Install CentOS Server with GUI
  • Post-Installation Housekeeping
  • SSH Environment
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• Basic Linux Skills
  • ls, pwd, cd, cp, mv, rm, mkdir, rmdir, whoami
  • alias, cat, file, chmod, chown, history
  • STD(IN|OUT), Pipes, Redirection, Command Chaining
  • ps, df, top, free
  • less & more, head & tail, find, which & whereis, w, who
  • Compression | Archival Tools
  • Checksums
  • Awk | Sed | Grep Usage
  • User | Group Management
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• File System Permissions | Ownership
  • Identify common file types
  • Identify default permissions applied to objects
  • Alter permissions | ownership on various objects and evaluate
  • SETUID | SETGID | Sticky Bit
  • Symlinks
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• Storage Management
  • Identify SWAP environment
  • Provision dedicated SWAP partitions | Add to Pool
  • Add | Remove SWAP from pool as needed
  • Provision File System-based SWAP
  • Identify default storage configuration
  • Provision new storage as needed
  • Identify LVM defaults
  • Add new partitions to LVM management
  • Allocate storage to LVM Volume Groups
  • Create Logical Volumes (LVs) as needed
  • Overlay File System and mount where applicables
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• ZSHELL
  • Features
  • Install
  • Defaults
  • General Usage
  • Update Accounts
•  

• System Scheduler
  • Discuss features | limitations
  • Identify default system-wide schedule
  • Peruse various default Cron Jobs
  • Schedule simple job and monitor recurrence
  • Evaluate results
•  

• SYSLOG | Log Rotation
  • Peruse default syslog configuration
  • Discuss syslog rules mechanism
  • Trap externally-generated log data
  • Explore Log Rotate defaults
  • Ensure rotated logs are compressed
  • Extend default retention scheme
  • Force Log Rotation as needed
•  

• Package Management
  • Explore default environment
  • Search for packages of interest and install
  • Dump important metadata from packages
  • Update YUM repository as needed
  • Setup internal YUM repo for expedited delivery
  • Apply updates as available
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• IP Administration
  • Identify default configuration
  • Add IPs as needed
  • Ensure IP persistence across resets
•  

• NginX
  • Install
  • Copy Configuration
  • SELinux Quell
  • TLS | SSL Services
  • cURL Client Tests
  • PHP-FPM Enable
•  

• Security
  • Use NMap to gather information from network
  • Configure FirewallD
•  

GParallel

• Discuss Features
• 'xargs' - Usage
• 'parallel' - Usage
• Parallel Process
• Replacement Strings
• $USER Operations

Command-Sub

• Discuss Features
• Back(Quote | Tick)s
• Parenthetical Notation
• Aliases

Z $SHELL (zsh)

• Discuss Features
• Installation | Configuration
• New User Module
• Manual Invocation
• User Customization
• Login | Logout
• SSH Non-Interactive
• Default $SHELL
• Redirection
• Command (Chaining | Substitution)
• Iteration
• Conditional Expressions
• Pipes | Status
• History
• Matches | Search
• SSHGuard Auto-Whitelist
• Non-SSH Client
• 404s Count
• Fetch RSS

OpenSSH | Windows

• Discuss Features
• Key Generation | Import
• SSH Client
• Invalid Key Format
• Secure Copy (SCP) Client
• Secure File Transfer (SFTP) Client
• Port Forwarding
• OpenSSH Server

PuTTY SSH | Windows

• Discuss Features
• Key Generation | Import
• SSH Client
• plink Client
• plink Client
• pscp Transfers
• psftp Transfers
• No Agent
• Port Forwarding

NMap Reconnaissance 7.9x - Windows

• Discuss Features
• Download | Install
• LOCALHOST Scans
• Subnet Scan
• LOG Scans
• Fast Scans | Specific Ports | UDP
• Multiple Targets
• SSH Scripts

NMap Reconnaissance 7.9x

• Discuss Features
• Download | Compile | Install
• LOCALHOST Scans
• Install Services
• Subnet Scan
• LOG Scans
• Fast Scans | Specific Ports | UDP
• Multiple Targets
• SSH Scripts
• Port Obfuscation

Debian 10x Administration

• $SHELL BASICS
• Explore usage of the following useful commands
  • ls, pwd, cd, cp, mv, rm, mkdir, rmdir, whoami, tty
  • cat, file, chmod, chown, history
  • STDIN, STDOUT, STDERR, UNIX Pipes, Redirection, Command Chaining
  • ps, df, free, top, dd
  • stat, which, w, who
  • Archival and compression utilities with tar|gzip|bzip2
  • Use checksum programs to confirm content integrity
  • Explore important SSH clients for secure access
  • Provision VNC GUI-enabled Remote access
  • Provision Users && Groups as needed
  • Evaluate effective permissions
  • Default to Z-Shell
•  
• Secure Communications
  • Explore SSH defaults
  • Use SSH to connect to targets
  • Transfer data with: SFTP | SCP
  • Use 'parallel-ssh' to invoke commands on multiple targets
•  
• Storage Management
  • Explain common Linux file permissions
  • Discuss various Linux file attributes | features
  • SymLinks
  • Explore available disks with 'fdisk'
  • Allocate new virtual storage for additional partitions
  • Provision EXT4 File Systems
  • Duplicate Partitions
  • Examine default and Provision additional Swap storage
  • Allocate | De-allocate SWAP as needed
  • Ensure persistence across EXT4 and SWAP provisions
  • Use GNOME Disks to manage storage graphically
  • Explore Logical Volume Management (LVM) Configuration
  • Create volume sets using: Logical Volume Management (LVM)
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• Ana(Cron) Schedulers
  • Anacron
  • Identify key Cron configuration scopes (Global & User)
  • Explain Crontab file format and applicable options
  • Define global cron jobs
  • Define custom cron jobs user-wide
  • Evaluate results of cron jobs
•  
• SystemD | Logs | Rotation
  • SystemD - Key Utilities
  • Explore default SYSLOG configuration
  • Expose 'rsyslog' configuration
  • Explore LOG Rotation configuration
  • Peruse various SYSLOG LOGs
  • Discuss various configurations options
•  
• Package Management
  • Explore default APT configuration
  • Identify commonly-used package management tools
  • Enumerate installed packages
  • Identify package owners based on system binaries
  • Discuss 'apt' and 'dpkg' options
  • Install | Remove various packages
•  
• Debian Networking
  • Network Tools | IP Configuration
    • Use GUI to initiate common network queries
    • Discuss results of initiated queries
    • Examine default IP configuration
    • Extend IP configuration to facilitate additional addresses
    • Confirm communications
    • Extend multiple addresses on various servers
•  
• NMap Reconnaissance
  • Identifiy key NMAP configuration files
  • Identify commonly used NMAP options/switches/parameters
  • Scan Server resource
  • Perform default TCP Connect-based ethical scans of local and remote resources
  • SSH Brute-Force Scan
•  

/dev/fd012

• Discuss Features
• STDIN - (Keyboard | File | Pipe | Network)
• STDOUT - (TTY | File | Pipe | Network)
• STDERR - (Clobber | Append | TTY | File | Pipe | Vanish | Network)