PHP Programming

PHP - Hyper Text Pre-Processor - Dynamic Web Applications & CLI - Module IV

• Installation
  • Identify Online PHP resources
  • Download PHP
  • Identify Apache prerequisite packages and programs - Modular support (mod.so)
  • Extract, compile and install PHP with Apache modular support
  • Compile and install PHP with Command Line Interface (CLI) support
  • Identify key PHP configuration files & directories
  • Configure Apache httpd.conf with PHP integration to provide PHP support
  • Configure Apache with PHP binary and source support
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• PHP Basics
  • Explain PHP-supported long/short/ASP parse-tags & identify configuration changes in php.ini
  • Hello World script output using echo to the web browser
  • Describe the various comments supported by PHP
  • Examine the ouput of PHP-maintained variables using phpinfo()
  • Explain supported data types via variables (integers, strings, floating points, here documents, arrays, etc.)
  • Test instantiation of supported variables with default types
  • Explain Quoting rules and variable interpolation
  • Demonstrate escape sequences such as tab, new lines, spaces, etc.
  • Exercise the echo command
  • Define basic associated arrays (i.e. hashes/dictionaries)
  • Define nested associative arrays
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• General Information
  • Examine key CGI PHP-server variables
    • HTTP_USER_AGENT
    • PHP_SELF
    • REQUEST_METHOD
    • DOCUMENT_ROOT
    • REMOTE_ADDR
    • HTTP_REFERRER
  • Explore HTTP GET Request Methods via the URLString and Forms
  • Explore HTTP POST Request Methods via the URLString and Forms
  • NULL Variables
  • Basic Math - PEMDAS
  • Integer and String Comparison Operators
  • Examine execution operators for executing Linux Shell commands and obtaining the ouput
  • Variable assignment via execution operations
  • Illustrate the usage of nested arrays
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• Control Structures
  • IF - comparisons against integers and strings
  • Else/Elseif - comparisons against integers and strings
  • Test whether variables are of the same type
  • Comparison negation
  • C-stlye for loops definition and usage
  • Generate HTML option boxes using C-style for loops
  • foreach list iterator loop definition and usage
  • Generate HTML based on the contents of the list iterated by foreach
  • While loops definition and usage
  • Examine filesystem listings using execution operators and while loops
  • do While definition and usage
  • Break
  • Continue
  • Switch - for concise if/elseif conditional examination
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• General Information II
  • Discuss the applications of Server Side Includes (SSI)
  • Server Side Includes using require
  • Server Side Includes using include
  • Explain and examine the differences between require and include
  • Demonstrate distributed include applications by including content using HTTP
  • Header, leftnav, body, and footer definition and integration with require/include
  • HTML Form defintion using include and control structures
  • PHP Functions definition and sample usage
  • ISSET & UNSET for examining and controlling variables
  • Discuss the way PHP handles uploaded files
  • Identify key configuration files which affect uploaded files
  • HTTP File I/O - uploads & processing via HTML forms
  • Define back-end action pages to handle HTTP file uploads
  • Examine available file attributes of HTTP-uploaded files
  • PHP SMTP E-mail integration discussion
  • Define scripts to process forms and generate SMTP-based e-mail
  • Examine PHP Mail function options
  • Use mutt on the Linux system to examine PHP-generated SMTP-based e-mail
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• PHP - Dynamic Web Programming
  • PHP cookie concepts & usage discussion
  • Cookie definition and examination on server and client system (Mozilla Firefox)
  • Set and unset cookies on client system
  • Make decisions based on the existence of cookies on the client system
  • Session Variables concepts & usage discussion
  • Identify pertinent configuration options for session variables
  • Define session variables
  • Integrate cookies with session variables
  • Download MySQL RDBMS packages for usage with PHP
  • Install MySQL RDBMS for usage with PHP
  • Download the latest phpMyAdmin for installation
  • Install phpMyAdmin with Apache supportfor web-based administration of MySQL RDBMS
  • Recompile PHP for MySQL RDBMS support
  • Update PHP configuration information to support MySQL
  • Define basic database structure for usage
  • Structured Query Language (SQL) integration with PHP
  • Explain steps for connecting PHP scripts to MySQL
  • Define and execute SELECT queries
  • Define and execute INSERT queries
  • Define and execute UPDATE queries
  • Define and execute DELETE queries
  • Forms Processing with MySQL integration
  • Forms with Cookies
  • Forms with Session Variables
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• PHP - Command Line Interface (CLI)
  • Discuss concepts and applications
  • Identify CLI binary
  • Discuss the possible ways of executing PHP scripts from the CLI
  • Define and execute PHP one-liners
  • Execute scripts using PHP binary as a prefix
  • Explore executing PHP via the Interpreter mode
  • PHP-Linux SHEBANG definition and usage
  • Execute basic commands
  • CLI - File I/O usage - Stat files
  • Examine file attributes
  • Determine access and modification times and make decisions using control structures
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• PHP - Input Validation
  • Define form and action script to process form fields
  • Submit form-fields for processing
  • Examine results
  • Define input validation masks with regular expressions
  • Evaluate results
  • Extend validation masks to command line interface (CLI)
  • Supply PHP CLI with input
  • Confirm validation masks
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Sums

• Various Tools
• Remote Confirmations
• File Metadata
• File Fragments
• Compress Content
• Archive Content
• DIR Hierarchy
• Password Sums
• Shared Secret
• Restrict History
• Downloaded Content
• Encrypt Content
• Site Credentials
• Site COOKIE
• Site COOKIE - Unique

CentOS9x Stream Administration

• Initial Environment
• 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
• Pagers, W-Commands
• Checksums
• Awk | Sed | Grep Usage
• BASH SHELL Environment
• Compression | Archival Tools
• SSH Equivalence
• SHELL Quoting
• Propagate Environment
• Secure Clients

• Identify Standard File Types
• Standard File Permissions
• Symbolic Links
• Transfer Permissions

• Identify SWAP environment
• Provision dedicated SWAP partitions
• Add | Remove SWAP from pool as needed
• Provision File System-based SWAP
• SWAP Share
• SWAP Persistence
• Identify default storage configuration
• Provision new storage as needed
• XFS - File System
• XFS - Grow File System
• 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
• LVM - Resize
• LVM - Mixed FS
• LVM - SWAP

• Features
• Install
• Defaults
• General Usage
• Update Accounts

• Defaults
• Shared PASS Gen
• Unique PASS Gen
• Encrypted PASS Gen
• Update Accounts
• Groups

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

• Peruse Default CONF
• Discuss Syslog Rules
• Explore Log Rotate defaults
• Ensure rotated logs are compressed
• Extend default retention scheme
• Force Log Rotation as needed

• Explore Default environment
• Install PKGs
• Dump important metadata from packages
• Apply Updates

• Default CONF
• Add | Confirm IPs as needed

• Install
• Copy Configuration
• SELinux - Confirm
• TLS | SSL Services
• cURL Client Tests
• Virtual Hosts
• ENC Sites Only

• SFTP Only USER
• SFTP Only USER - NOLOGIN
• SFTP Only Group - Control
• NMap Intro

SysLOG with rSysLogD

• Discuss Features
• Default Environment
• Kernel Firewall LOG
• Split LOGs by Priorities
• UDP | TCP Logging
• Dual L4 Logging
• Multiple Hosts
• Basic Queueing
• Reliable Event Logging Protocol (RELP)
• RELP - Remote Only
• RELP Only
• Traditional to RELP
• SysLOG Clear-Text - Confirm
• Property Filters
• Expression Filters
• Relay Chain

Netfilter Tables

• Features
• SSHGuard
• Ruleset Basics
• Persistence
• Sample Rules
• Inbound Filtering
• Dormant Table
• Manage Tables | Chains | Rules
• Counters
• Sets
• LOG Basics
• LOG with Sets
• Closed-Port LOGs
• LOG Options
• Re-Route LOGs
• Jump Targets
• Chain Jumping
• GoTo Chains
• Meta Selectors

Debian 12x Administration

• Features
• Download
• Graphical Install
• Text Install
• Post-Install Tweaks

• Explore usage of the following useful commands
• tty | /dev/pts | w | whoami | who
• set | env | export | unset
• cat | echo | touch | rm
• pwd | ls | cd | mkdir | alias | umask
• head | tail
• dd
• find
• history
• STDIN, STDOUT, STDERR, UNIX Pipes, Redirection, Command Chaining
• ps, df, free, top, dd
• stat, which, w, who
• tar | gzip | bzip2 | xz
• ZSH Setup

• Network Tools | IP Configuration
• Examine default IP configuration
• Extend IP configuration to facilitate additional addresses
• Static IP Config
• Dual: Dynamic | Static Config
• Multiple Interfaces
• Dual Network Services
• Confirm communications

PHP One-Liners

• General Usage
• Count Lines
• Word Count
• Count Chars
• Split Lines into ARRAY
• Count Instances of Fields
• Transform Delimiters
• Anonymize LOGs
• Extract Unique SRCs
• Lines by Error Code
• LOG By Code
• Summarize Error Codes
• Pre-Seed Error Codes
• Random Strings
• Varied Passwords
• Expose Undefined Passwords
• Outdated Passwords
• Hash | Un-Hash

Cloud Storage with GlusterFS

• Discuss Features:
• Default Volume Type
• Common Volume Types
• Transport Types
• File System Support
• Storage Model

• Features
• Provision Storage
• Allocate GlusterFS Brick
• Persistence
• Generate IO
• Multiple File Systems
• Various Sizes
• Stop | Remove Volume
• Reconstitute Volume
• Server Mount
• Evaluate

OpenPGP with GPG

• Discuss Features:
• Primary Tool
• Private | Public Keys
• Public Key Cryptography Standards (PKCS)
• Encryption | Decryption
• Signing | Verification

• Features
• General Usage
• Create Content
• Encrypt
• PassPhrase Protect
• Binary | Text Encryption
• Share
• Decrypt

SSL-TLS with OpenSSL

• Discuss Features:
• Primary Tool
• Private | Public Keys
• Certificate Signing Requests (CSRs)
• Self-Signed Certificates
• Public Key Cryptography Standards (PKCS)
• Encryption | Decryption
• Random String Generation
• Message Digests
• SSL-TLS Client

• Features
• General Usage
• Retrieve Site Certificates
• Determine OCSP Configuration
• Probe supported TLS Versions
• Extract Certificate for local usage
• Retrieve Certificate with NMap
• Retrieve Certificate Chain

• Discuss
• Generate Private Keys
• Generate Correlating CSRs
• Confirm Keys | CSRs
• Self-Signed Certificates

SSH Variables

• Discuss Features
• Bare VARs
• SSH Client
• Double Quotes
• Single Quotes
• SSH Environment

SHELL Variables

• Discuss Features
• Terminal (TTY)
• CLI Arguments
• Process ID
• Backgrounded
• SHELL Local
• Environment
• Persistence
• Aliases
• Command Substitution
• Increment | Decrement
• Dynamism