Owner, Kostis Netzwerkberatung
Frankfurt Am Main Area, Germany
- Current
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- Owner at Kostis Netzwerkberatung
- Past
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- Technial Project Manager at IBM Mittelstand Systeme GmbH
- SOX 404 Consultant at GE Money Bank
- Unix Consolidation at Ericsson
- Server/Network Consultant at IG Metall
- Network/Firewall consultant at Elektra Birseck (EBM) - Swittzerland
- Network/Infrastructure consultant at DAF Trucks
- Network/Infrastructure consultant at DAF Trucks
- Network consultant at Ministerium für Ernährung und Ländlichen Raum (MLR) - EBZI
- PC network integrator at Digital Equipment Corporation
- Education
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- Technische Universität Darmstadt
- Recommended
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1 person has recommended Konstantinos - Connections
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20
connections
- Industry
- Computer Networking
- Websites
Konstantinos Kostis’s Summary
Network cosultant (generalist) with strong knowledge in network infrastructure services (DNS/DHCP) and operating systems (Microsoft Windows, Unix/Linux). Also long experience with Cisco technology and devices. Design, analysis, installation, configuration. monitoring and administration of networks and network devices. Technical project management of small (<20 people) teams of experts.
Konstantinos Kostis’s Specialties:
ITIL Foundation Certificate
ITIL Practitioner SLM Certificate
PRINCE2 Foundation Certificate
IT infrastructure
DNS
DHCP
computer networks
LAN
WAN
Cisco
Microsoft Windows
Unix
Linux
project experience all over Europe
netdb
Konstantinos Kostis’s Experience
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Owner
Kostis Netzwerkberatung
(Computer Networking industry)
January 1993 — Present (16 years)
IT network consultant (freelancer)
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Technial Project Manager
IBM Mittelstand Systeme GmbH
(Public Company; 501-1000 employees; Information Technology and Services industry)
January 2005 — March 2008 (3 years 3 months)
Technical management of project "network separation" (more than 500 servers had to be IP address renumbered and moved behind firewalls with the shortest outage possible for multiple customers). In addition I acted as a local GSNI "architect", designing and implementing Vlans and IP address management. Planned and managed migration from GSNI 1.0 to 1.1 with very short outages in time and budget.
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SOX 404 Consultant
GE Money Bank
(Public Company; 10,001 or more employees; GE; Banking industry)
July 2004 — October 2004 (4 months)
Prepared customer for SOX 404 audit (DS13). Created documentation and CoBIT compatible IT operations processes.
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Unix Consolidation
Ericsson
(Public Company; 10,001 or more employees; ERICY; Telecommunications industry)
July 2003 — December 2003 (6 months)
Consolidated 12+ Sun servers in Germany with web, database and cifs services to three systems with (at the time) current versions of OS, self compiled applications. Consolidated shared and documented system. Also documented complex Sun OS based system in Vienna.
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Server/Network Consultant
IG Metall
(Non-Profit; 1001-5000 employees; Non-Profit Organization Management industry)
June 1993 — October 2002 (9 years 5 months)
Installation, configuration and administration of more than 200 PATHWORKS servers (OpenVMS) distributed all over Germany. Created installation images for PC clients (from MS-DOS 5 and PATHWORKS with DECnet to Microsoft Windows 98 SE and PATHWORKS with TCP/IP). Migrated network with more than 2500 clients and servers from DECnet to TCP/IP. Introduced and maintained DNS, later DHCP also. Created IP address plans and created tools for automated IP address management including management for DNS. Created tools for automated configuration for Cisco routers and switches. Introduced network monitoring (TCP/IP) using mrtg.
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Network/Firewall consultant
Elektra Birseck (EBM) - Swittzerland
(Public Company; 501-1000 employees; Internet industry)
July 2001 — July 2001 (1 month)
Designed and implemented IP address plan, planned, configured and installed Cisco PIX firewalls (redundant) and Cisco switches. Got connection to their ISP up and running including proper DNS.
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Network/Infrastructure consultant
DAF Trucks
(Public Company; 5001-10,000 employees; Automotive industry)
July 2000 — August 2000 (2 months)
Migrated network backbone from ATM/hubs to (Gigabit) Ethernet/switches, planned and implemented IP renumbering.
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Network/Infrastructure consultant
DAF Trucks
(Public Company; 5001-10,000 employees; Automotive industry)
April 1999 — December 1999 (9 months)
Migrated network backbone from ATM/hubs to (Gigabit) Ethernet/switches, planned and implemented IP renumbering all over Europe. introduced netdb for DNS adminstration. Migrated/introduced frame relay WAN (connections in Europe and to USA). Created IP address plans, designed and implemented Linux routers/firewalls. Acted as one of two European Windows Domain Admins.
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Network consultant
Ministerium für Ernährung und Ländlichen Raum (MLR) - EBZI
(Government Agency; 1001-5000 employees; Government Administration industry)
May 1998 — March 1999 (11 months)
Migration from NetWare 4.11 to Microsoft Windows NT4. Analyzed and corrected S2M WAN router configuration based on NetWare 4.11 multi protocol router. Improved IP address plan, optimized routing, introduced web based DNS and IP address management (netdb). Created unattended installation kit for Microsoft Windows NT4 workstations. Created system level tools to survive y2k problems on remaining Novell NetWare servers. Introducted software deployment method to ensure programmes are consistent in all ca. 180 subsidiaries all over Baden-Württemberg.
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PC network integrator
Digital Equipment Corporation
(Public Company; 10,001 or more employees; DEC; Computer Hardware industry)
August 1989 — December 1992 (3 years 5 months)
Pre-Sales Support. Created concepts, analysed existing installations, installated, configured and maintained PATHWORKS servers (both OpenVMS and Ultrix) and PATWORKS clients (both DECnet and TCP/IP). Created automated installation and configuration scripts for PATHWORKS clients (LANTools).
Konstantinos Kostis’s Education
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Technische Universität Darmstadt
- Activities and Societies:
- Fachschaft Informatik, Fachbereichsrat Informatik
Additional Information
Konstantinos Kostis’s Websites:
Konstantinos Kostis’s Interests:
interesting projects, bass playing, motorbikes, electric vehicles (as soon as I can get one!)
Konstantinos Kostis’s Groups:
ACM
Konstantinos Kostis’s Contact Settings
Interested In:
- consulting offers
- job inquiries
- expertise requests
- business deals
- reference requests
- getting back in touch
