LinuxCBT Deb8x Edition

Course Objective

Perform Various Installations
– Discuss important release features
– Prepare virtual environment to support Debian
– Install Debian with Desktop Environment
– Evaluate updates | changes
– Perform virtualized installation with VMWare
– Confirm installation
– Clone VMWare installation
– Update cloned server deployment
– Discuss relevant settings and configuration
– Migrate to ‘ifupdown’ from Network Manager
– Perform startup sanity checks
– Upgrade distribution to latest stable version
– Discuss various installation techniques | benefits
– Enter Single-User mode and discuss typical usage
– Provision post-startup script invocation

Basic Debian GNU/Linux Skills
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, kill
– less & more, head & tail, find
– stat, which, w, who
– dig, nslookup, host
– 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

Storage Management
– Explain common Linux file permissions
– Discuss various Linux file attributes | features
– Explore available disks with ‘fdisk’
– Allocate new virtual storage for additional partitions
– Provision EXT4 File Systems on new partitions using ‘parted’
– 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)

Screen TTYs | PTYs
– Discuss TTY | PTY limitations
– Identify opportunites to benefit from Screen
– Identify configuration environment
– Invoke and use screen natively
– Confirm persistence of TTYs | PTYs across sessions
– Share Screen sessions
– Confirm overall efficacy of Screen

Explore the CRON scheduling daemon & configuration
– 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

SYSLOG | LOG Rotation
– Explore default SYSLOG configuration
– Expose ‘rsyslog’ configuration
– Explore LOG Rotation configuration
– Rotate LOGs as needed
– Peruse various SYSLOG LOGs as needed
– Discuss various configurations options

SYSTEMD | INIT | Service Management
– Discuss traditional INIT model
– Explain SysV-compatibility
– Identify SysV-related scripts
– Manipulate services | daemons with: ‘systemctl’
– Discuss time management via ‘timedatectl’ and SYSTEMD

Package Management
– Explore default APT configuration
– Identify commonly-used package management tools
– Enumerate installed packages
– Identify package owners based on system binaries
– Discuss ‘apt’, ‘aptitude’ and ‘dpkg’ options
– Discuss package mirrors
– 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
– Ensure persistent IP configuration
– Configure static routes and test packet flows
DNS Configuration
– Confirm | Setup DNS services
– Test Caching-Only server responses for upstream queries
– Configure primary zone (domain) on primary DNS instance
– Confirm primary DNS instance resolves queries for managed domain (zone)
– Replicate DNS data via BIND and confirm results
– Use various resolvers to confirm resoltution of managed zone (domain)

Interface Configuration
– Explore network configuration tree
– Alter settings and evaluate
– Provision aliased interfaces as needed
– Confirm communications via various interfaces
– Committ configuration for persistence
– Provision interface configuration on various nodes
– Evaluate accordingly

Very Secure File Transfer Protocol Daemon (VSFTPD)
– Explain features and applicability
– Peruse default configuration
– Test anonymous FTP connectivity
– Secure configuration per general requirements
– Use various FTP clients to communicate with VSFTPD
– Enable local user access
– Jail users to $HOME – added security
– Evaluate results

Apache Web Service | HTTPD Server
– Implement Apache Web Server
– Explore configuration hierarchy
– Discuss key directives
– Peruse Apache logging templates and defaults
– Vary logged information as needed
– Provision IP-Based Virtual Hosts (VHosts)
– Confirm distinct IP-Based connectivity to various sites
– Contrast IP-Based sites with default sites
– Conserve IP resources with Name-Based VHosts
– Contrast various VHost types
– Secure communications with Apache SSL | TLS
– Test connectivity to various SSL|TLS-enabled sites
Debian Security
GPG Security
– Update and Upgrade install Packages
– Identify changes across Nodes
– Secure content with GNU Privacy Guard (GPG)
– Explore benefits of various Secure Shell clients
– Peruse Secure Shell Server security
– Disable superfluous services
– Explore and tighten System Policy
– Login Definitions
– Evaluate Results

NMap Security Scanner
– Obtain, compile and install current version of NMAP
– Identify commonly used NMAP options/switches/parameters
– Perform default TCP SYN-based ethical scans of local and remote resources
– Explain typical TCP handshake protocol while using NMAP
– Perform default TCP Connect-based ethical scans of local and remote resources
– Peform local ethical scans
– Identifiy key NMAP configuration files
– Use NMAP to perform operating system fingerprinting and versioning
– Peform subnet-wide ethical scans

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