Training activity

Our most important training areas are network- and programming security, development and system administration on Linux, *BSD and Solaris. If you are interested in any of our training areas, send your inquiry to the following e-mail address: info@andrews.hu

Our training areas

Programming specific courses
General computer security technology training:

The basics of computer security

Linux courses from beginner to expert levels:

Basic course for operators
General administrator skills
Troubleshooting on Linux
Server installation on Linux
Advanced network administrator on Linux
Central user management with the help of KERBEROS and LDAP
Linux in an enterprise environment

General network training:

TCP/IP expert course

Courses on self-developed products

Programming specific courses

C
Perl
Shell
Linux/Unix developer courses:
- Network management
- Secure program development
- Linux/Unix development
- GNU developer tools (gcc, gmake, autotools etc.)

General computer security technology training:

The basics of computer security

Level of the course: beginner

Duration: 5 days

Completely distribution-independent course.

Aim of the course: The participants of the course get to know the vulnerabilities of the computer systems, the theoretical possibilities of exploiting them and the defense methods against these.

Draft syllabus:

Introduction, general basics
Typical programming mistakes and their exploits
Local security on Unix systems
Security questions of Linux systems
High security extensions to the Linux kernel
Installation of a secure Linux server
Security questions of computer networks (IP, TCP, UDP, ICMP)
Types of firewalls: packet filters, stateful packet filters, application layer filters
Protection plan, network flaw demonstration
The stateful packet filter of Linux
Cryptology
Secure development, audit - CC

Linux courses from beginner to expert levels:

Basic course for operators

Level of the course: beginner

Duration: 5 days

With optional distribution-specific parts. optional distributions:

Red Hat
Fedora
SuSe
Debian
Ubuntu

Aim of the course: After completing the course, the participants will be capable to install a Linux workstation, managing an installed server through it, starting and stopping the server, checking its services and solving easier problems that occur. This basic training assists later self-learning of related material.

Draft syllabus:

Installation and basic settings of Linux workstations
Options for managing Linux servers
Starting and stopping servers, run levels
Starting and stopping services, general configuration methods
Troubleshooting basics (return value, STDERR, log analysis)
Monitoring the running system (processes, daemons, network servers)
Timed command execution, running commands in the background
Basics of user management, groups
Access control, file systems
Installing new devices into the system (disks, network devices)
Package management system and its usage
Implementing a simple backup system

General administrator skills

Level of the course: beginner

Duration: 5 days

Completely distribution-independent course.

The aim of the course: After completing the course, the participants will be capable of efficient work using the command line on a Linux system. They will be prepared to write shell scripts that even solve more complex tasks through which the maintenance of the system and the efficiency of the management functions can be dramatically improved. They get to know the query and configuration tools that can be used on Linux systems, which assist to using functions far beyond capable than graphical configuration tools.

Draft syllabus:

The parts of the Linux file system
Commands related to file management
Pipes and their usage, the most important basic commands
Management of disks and file systems at high level
The options of the Bourne shell family, globs, complex shell commands
Process management on Unix systems
Simple shell programming
Basics of querying and configuring network settings
Details about the system initialization
Interpretation of a chosen init script
Developing complex shell scripts on Linux
Characteristics of cron scripts
Developing a simple automatic log analyzer

Troubleshooting on Linux

Level of the course: beginner +++

Duration: 2 days

Completely distribution-independent course.

Aim of the course: During the course the participants get to know those tools which can assist in the prediction, detection and prevention of errors of the computer, the programs running on it and the network.

Draft syllabus:

The nature of errors
Detecting and preventing program errors
Detecting and predicting hardware errors
Detecting and preventing network errors

Server installation on Linux

Level of the course: beginner

Duration: introductory course: 2 days, then per module: 3 days

With optional distribution-specific parts. Optional distributions:

Red Hat
Fedora
SuSe
Debian
Ubuntu

Aim of the course: During the introductory course the participants get to know the basics of the installation of a general server. Reliability of operation and security aspects are mentioned in connection with the installation, and such general knowledge that prepares the participants for the installation of almost any server program with the appropriate documentation.

Draft syllabus:

Basic knowledge:

The requirements for choosing a server program
Co-existing services and their risks
Acquiring the basic skills necessary for installation
Installation and configuration of the server
Functional tests and creating installation documentation
Basics of troubleshooting and problem solving
Log analysis and reaction
Necessity of updates and their installation
Importance of backup methods and their planning
Making a disaster recovery plan, restoration test

Optional modules:

Apache webserver
Bind name server and DHCP server
Squid webcache
Mailing (basics of SMTP, POP3 and IMAP)
Samba file and printer server
Virus and spam filtering of mail
LDAP server

Advanced network administrator on Linux

Level of the course: Advanced

Duration: 5 days

Completely distribution-independent course.

Aim of the course: After completing the course, the participants are capable of operating network subsystems of Linux based systems, developing secure network topologies and analysing, preventing network problems occurring in connection with the managed systems. The course contains a review of the TCP/IP protocol at the administrator level.

Further purpose of the course is to review a Linux based implementation of the following topics:

Encrypted Private networks (Virtual Private Network -- VPN)
Basics of network bandwidth management
Linux kernel network routing system -- Advanced Routing

Draft syllabus:

Basics of network communication, TCP/IP networks
The networking subsystem in Linux
Network segmentation and topology design
Packet filtering firewall subsystem of the Linux kernel
Basics of encrypted Private networks, Linux based implementation in practice
Basics of network bandwidth management
Advanced routing capabilities and their utilization techniques in practice

Central user management with the help of Kerberos and LDAP

Level of the course: Advanced

Duration: 5 days

Completely distribution-independent course. On demand, we can deliver this course for other Unix (Solaris, HP-UX or FreeBSD) systems too.

Aim of the course: After completing the course the participants will be capable of installing and using LDAP and Kerberos clients and servers. They get to know a central authentication method that can be used on Linux (and other Unix) systems, its conditions, installation and usage (both on the client and the server side).

Draft syllabus:

The tasks and possibilities of the LDAP system
The structure of the LDAP database
OpenLDAP server management basics
Access control in LDAP
LDAP schemes, their set-up and usage
Efficient search in LDAP databases
LDAP data backup and restoration
LDAP replication
What support does libc offer to the central user management?
Usage and configuration of the LDAP NSS module
What is Kerberos and what is it for?
User level review of Kerberos
Installation of a Kerberos master and slave server, client configuration
Kerberos administration tasks
Kerberisation of some servers (OpenSSH, OpenLDAP)
The basics of PAM (Pluggable Authentication Modules)

Linux in an enterprise environment

Level of the course: advanced

Duration: 5 days

Completely distribution-independent course.

Aim of the course is to review the capabilities necessary for company level usage of the Linux operating system. The complexity of the subjects presented in the frame of the course doesn't allow the detailed review of certain features, because of this we confine ourselves to present only the operator level functionalities. In case of demand, we can organise expert courses and consultations in the given topic.

Draft syllabus:

Performance tuning of Linux based systems
Memory management of the Linux kernel
Performance tuning of network subsystem in the Linux kernel
Performance tuning of the disk subsystem and the filesystems
Tuning of multi-processor systems
High availability, fault-tolerant systems
Journaling filesystems
Developing fault-tolerant disk subsystems (RAID)
Implementation of logical partitions (LVM)
Monitoring systems
Introduction to the Nagios network monitoring system and its possibilities
Load balancing and shared resources
Load balancing of network resources (LVS)
High availability network services (HA)
Virtualisation technologies
The theory of virtualisation and its practical advantages
Prevalent virtualisation techniques on Linux
XEN
UML
VMware ESX server

General network training

TCP/IP expert course

Level of the course: advanced +++

Duration: 5 days

Completely distribution-independent course.

Aim of the course: The participants of the course get to know the TCP/IP protocol family in complete details (under which we mean bit level review in most cases). We deal with the TCP protocol in particular detail, the participant will learn the processes in the background which aren't visible to the simple users and administrators. After completing the course, the participant will be capable of identifying the most complex TCP/IP communication problems, understanding the operation of the TCP/IP stacks, and in the possession of programming knowledge, maybe implementation as well. We recommend this course only to participants with strong TCP/IP basic knowledge.

Draft syllabus:

TCP/IP in general
Data connection level
Structure of the IP packet
Basics of routing, the connection of data connection and network layer, the ARP protocol
The ICMP protocol
IP routing and the ICMP protocol
The UDP protocol
Broadcast and multicast communication, multicast routing, IGMP
Basics of the TCP protocol
Establishing and closing the TCP connection
TCP interactive data transfer
TCP mass data transfer
TCP timeout and retransmission
TCP protocol performance tuning
The weaknesses of the TCP/IP protocol family, network attacks

Teaching on self-developed products

ALF courses from beginner to expert level
TCB course
DHCPman course