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40 - IT-O - Information Technology - Operating Systems and System Administration
IT-O 210 - UNIX/Linux - Programming Tools & Security Issues
| Code | Start Date | Duration | Venue | |
|---|---|---|---|---|
| IT-O 210 | 21 October 2024 | 5 Days | Istanbul | Registration Form Link |
| IT-O 210 | 25 November 2024 | 5 Days | Istanbul | Registration Form Link |
| IT-O 210 | 30 December 2024 | 5 Days | Istanbul | Registration Form Link |
Please contact us for fees
Course Description
This course discusses the use of system-level programming interfaces provided by UNIX and Linux to develop applications. The course is illustrated with practical examples in UNIX's 'native' C language which show how to write programs to exploit the features of UNIX. UNIX is an excellent environment for client/server programming. Participants will learn how to create both client and server applications using sockets and other inter-process communication methods.
Course Objectives
- Writing programs that can access and update information in files
- Using the concepts of the UNIX virtual memory system
- Handling signals in a safe and reliable way
- Programming UNIX and Internet sockets interfaces
- Building multi-process applications
- Understanding passing information between co-operating processes using IPC
- Implementing UNIX client/server applications
- Creating multi-threaded programs and synchronise shared resources
Who Should Attend?
- UNIX professional
- User and application support specialists
- Software developers and those working toward becoming an effective system
- Network or database administrator on the UNIX platform
- Anyone who deals directly or indirectly with UNIX system
Course Details/Schedule
Day 1
- Introduction and Review of Unix Basics
- Command syntax
- Permissions
- Processes
- Wildcards
- Redirection and pipes
- Creating and Executing Scripts
- The Shell Environment
- Assigning and accessing variables
- Built-in variables
- Tools of the Trade
- Extracting text with cut
- Joining columns with paste
- Transliterating characters with tr
- Eliminating duplications with uniq
- Batch processing with at
- Periodic Processing with cron
Day 2
- Quoting
- Single and double quotes
- Command substitution
- Reading Input and Performing Arithmetic
- Positional parameters
- Reading user input interactively
- Displaying output
- Arithmetic on shell variables
- Conditional Testing
- Exit status
- The test command
- String, integer and file test operators
- The if command and its variations
- The case statement
- The select statement
Day 3
- Looping Constructs
- The for loop
- The while/until loops
- Controlling loops with break and continue
- Miscellaneous features
- Arrays
- Setting options in the Korn shell
- Aliases
- Command Line history
- Job Control
- Functions
- Signal Handling
- Security Concepts
- What is Security?
- Staying up to Date
- Thinking Like the Enemy
- Creating a Security Policy
Day 4
- Securing User Accounts
- Introduction
- Account Names
- Mail aliases
- Users and their passwords
- Users with no passwords
- Forcing user to change their password
- Preventing user from changing their password
- Restricted shell
- Application accounts
- Same UID, multiple user accounts
- Dealing with the su command
- Saving login failures
- Using tools
- Aecuring System Accounts
- The root Account
Day 5
- Other System Accounts
- Group System Account
- Securing the File System
- Basic UNIX permissions
- Setting default permissions
- Special permissions
- Special permission: sticky bit
- Access Control Lists (ACL)
- Changing the ownership of a file
- Changing the group ownership of a file
- Device files
- Partitions
- Disk Quotas
- Backups
- System Startup and Processes
- Boot Up Process
- Process Control
