IT System Design

In IT System Design we offer know-how in the following fields:

Web and application server design

• scalable and redundant server farms
• Apache Web Server (httpd with SSL)
• Apache Tomcat
• Oracle Weblogic
• Use of cost-efficient standard hardware combined with fully developed clustering technologies
• products from other suppliers

BD server design

• Scalable database systems
• Oracle RAC
  • Transaction processing systems and Data warehouse
  • Replication between different clusters
• “Sharding”
• My Sql-cluster

Storage design

• Online storage
• secondary storage (e.g. backup)
• Creation of an adequate storage design based on metrics (calculations, measurements, tests)

Network design

• On ISO Layer 3 and 4
• STP (Spanning Tree Protocol)/RSTP (Rapid Spanning Tree Protocol)
• Dynamic Routing Protocols: OSPF (Open Shortest Path First), BGP (Boarder Gateway Protocol Version 4)
  • Cisco Implementation or Unix quagga

Central AAA systems/Triple-A-Systems (Authentification, Authorization, Accounting)

• based on LDAP (Open LDAP/Kerberos)
• wholly redundant, where applicable arranged on various data-centers
• Single Sign On (e.g. with Kerberos tickets)

Configuration Management

• e.g. Puppet