IT-Skills:
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since 1996 Oracle DB and Oracle Applications Operating.
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since 1996 Cisco administration
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since 1994 Unix system administration
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since 1990 Network administration with IP/IPX/Appletalk
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since 1985 Desktop support (for PC and Mac)
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for 6 years lecturer at a VHS for introductionary courses and Office Applications
Networking:
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Structured cabling and 19" Applications (Electronics degree!)
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Good knowledge of nearly all important TCP/IP Protocols
(e.g. Wins, Dhcp, SMB, SNMP / RMON, more: see Internet)
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Good knowledge in the area IP- and AppleTalk Routing
although not of advanced dynamical Routing (bgp, egp, ospf)
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Cisco Switches of the 2900/3500/4000 Line and Routers of
the 700,800,1000,1600,2600 und 4500 Series. Setup of VLANs,
EtherChannel, ISDN Dialups, Frame relay, Synchronous Serial,
AppleTalk, IP Routing and Access lists (Filtering / Firewalling).
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Hubs and Switches from 3Com. Routers from 3Com, Ascend/Lucent,
Elsa, and others provided from ISPs.
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Firewalling with Application-Level Gateways based on BSD and Linux (using TIS fwtk).
Screening-Routers and Packetfilters based on Cisco routers (not PIX) and FreeBSD.
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VPN setup with FreeBSD by way of IP-Sec and an IP-Tunnel.
VPN with the W2K Server included solution (VPN-RAS).
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Network- and Systemmonitoring based on SNMP, mainly with MRTG
and self-written Perl-Scripts, but also with tkined (kind of a Freeware-"Openview").
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Implementation of a satellite-based WAN Link to India with
Gilat. We had the Satellite-Antenna in-house,
coupled to a Cisco via V.35 serial link. Intensive error tracking with the Indian
side due to transmission problems and connection losses.
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Wan-Link simulator based on the FreeBSD-"Dummynet" interfaces.
One can simulate packet-loss and adjust delay and bandwidth.
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PPP: All kinds of PPP connections via Cisco ISDN-Router,
3Com RAS-Router, NT4-RAS, W2K, MacOS, Isdn4BSD, KA9Q, etc..
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And SLIP via MacOs and A/UX.
Internet and IP Protocols:
- Since 1991 own, private Internet email-address.
- Since 1993 private direct Internetaccess.
- 1994 I brought Internet-access to the VHS Metzingen, being the first VHS
in Baden-Württemberg having full Internet-access in the classrooms.
- Since 1995 I run Internet-Servers and -Domains.
- Since 1995 I have my own Domain:
koerner.de
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DNS: Very good knowledge of bind, NT 4 DNS.
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SMTP: very good knowledge in Sendmail. Good knowledge of majordomo,
MS Exchange, NAI WebShield, Symantec Antivirus for SMTP-Gateways.
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UUCP: HDB and Taylor UUCP via Modem and IP.
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POP3 & IMAP: MS Exchange, Cyrus IMAP Server (Freeware),
Qualcom qpopper.
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NNTP: inn, Exchange.
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HTTP: Good knowledge in Apache.
Basic knowledge of MS IIS4 and Oracle Web-Server 3.
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Proxies: Squid, Apache, TIS, rtsp proxy.
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LDAP: some exposure to OpenLDAP.
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Firewalls: FreeBSD and Linux with TIS fwtk. Complete DMZ Setups.
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Others: NTP, ssh, SNMPv1, ftp, wins, dhcp, bootp, X11, lpd, telnet, vnc
Filesharing:
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SMB: Good knowledge of Samba, NT 3.5 - W2K, Helios PC-Share.
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AFP: Good knowledge of netatalk, Helios Ethershare, A/UX Fileserver, Appleshare Server 2 & 3.
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NFS: Experience on Solaris, FreeBSD, A/UX.
Operating Systems:
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Unix: User since 1992. Very good knowledge in Solaris,
FreeBSD, A/UX, Linux.
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Novell: from 1989 to 1996 Versions 2.2 up to 4.0
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MS: Everything since 1984 (Dos 3.0) up to W2K.
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Apple: Everything since 1987 (MacOs 6.x)
Unix-Software and Hardware
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Veritas: Very good knowledge in Volume Manager, NetBackup.
Good knowledge in Cluster Server.
Basic knowledge in Veritas Filesystem.
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Sun Solstice Disksuite
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Oracle 7 Installation, Operating, Backup (and Restore)
and Maintenance.
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Oracle Applications GL, AP, AR, PO, HR: Installation and upgrade of Releases
10.5 up to 10.7 NCA. System administration, troubleshooting.
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Sybase Adaptive Server Enterprise 11.7 to 12.5.
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QuarkDMS
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All kinds of OpenSource from gcc, the Gnu-tools,
up to Apache, inn, hylafax, procmail, mailman, ids, etc...
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Suns from SparcServer 20, SparcServer 1000, E450, E3000, E4000 up to Starfire V880
in largest configuration. Sun SSA112 and A1000.
Digital Alpha Servers and Workstations running NT 4 and FreeBSD.
Supermicro Quad-Xeons with Linux and FreeBSD.
Raids from Infortrend and Integrix. Digital Storageworks and EMC Clariion FC raids.
MS-Software and Software for MS-Systems
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The complete range of NT 4 Server based Services in a global environment
(Trusts, Wins-Replication, Wan-Printing etc...)
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The complete range of MS-Office Software as a user. No extensive
customizing or VBA programming.
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MS Sql-Server 6 and 7 installation and operating. Backup and recovery.
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MS-Exchange 5.5 with global replication of adressbooks
and Public-Folders. Virusprotection from NAI and Symantec.
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Message-Queue, Transaction Server, ADO, DCOM etc...
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All kinds of Applications from e.g. Quark, Adobe, Oracle, Autodesk.
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AV-Tools from Symantec and NAI.
Programming Languages
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Perl: Good. Regular use (e.g. bigger Perl-Modules for Oracle and Netbackup).
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Bourne-Shell: Yes, but complex scripts only in Perl!
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Basic C-Knowledge from the University.
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Not used for years now, but then ago quite intense: (Turbo-) Pascal, Modula-2, 68K-Assembler.
Others:
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Basic knowledge in Electronic Publishing.
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Broad Hardware- and Electronics Know-How (Degree in electronics!).
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Good basic Microcontroller knowledge, especially 68K.
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Lots of experience in Training End-Users and Know-How transfer to collegues.
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Deep knowledge in the area of general technical Infrastructure Planning
for Office-Buildings. Handling of the setup and removal of operational Equipment
for entire Locations. Including transfer of Materials and the according Paperwork
(Customs, Shipping, Pro-Forma Invoices, Export permits, etc...).
Trainings received:
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2004: Sybase: System and Database Administration: Adaptive Server Enterprise.
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2001: Veritas: Veritas Cluster Server 1.3 for
Solaris Basic & Advanced Course.
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1999: Oracle: Compactcourse Oracle 8 Databaseadministration plus
Backup and Recovery Workshop.
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1997: Telemation: Cisco Routing ISDN and Frame-Relay.
Foreign Languages
- Technical English and easy conversations fluent.
- Very basic french (holiday-style !)
This is the link to my CV.
Created 2003-02-26. Last Modification 2004-06-13.