Eric Hoeve

Red Hat Certified Engineer

Design, implement and support Linux and Solaris servers in various capacites.

Worked on an email migration project where users from an acquired telecom were migrated to TDS. I automated (scripted) the process of migrating users emails and forwarding future emails from their old account to a TDS email account.

Enhanced the means by which new servers are built to TDS. The process minimized operator intervention and automated software and firmware updates of the new servers. I accomplished this using various bash and Perl scripts and RedHat Kickstart capabilities and PXE boot.

Designed and implemented the office internal network and the co-location server which included the website and email.

• Used Open-Source Software for both internal server and co-location server.
• Setup the office network using:
  • Samba for File and Print services.
  • Sendmail, Courier-imap, ClamAV and SpamAssassin for email.
  • Hylafax for a fax server.
  • Asterisk for the phone system.
  • Bind for DNS.
  • Used Nagios to monitor network.
• Setup the office network using:
  • Apache for the co-location webserver.
  • Postfix/MailScanner/ClamAV for mail server.
• Setup the office phone system:
  • Asterisk provided both PBX capabilities and VOIP between De Kalb, IL office and my office in Verona, WI.

Installed an email gateway to filter out spam, malware, phishing email, and dangerous content. This system integrates with the districts student and staff database. Currently I maintain the mail server and filtering system.

Installed a Reverse Proxy to consolidate hostname namespace. This required a reverse proxy which could map hostnames to various URLs.

Designed and implemented custom scripts which helped divert DDoS attacks on the Mail Server. Also created scrits which provided staff with a web interface to help staff determine possible attacks and spammers and fixed various aspects of the client web interface to email and bandwidth monitoring.

Operating Systems
• Linux/UNIX (Red Hat,SuSE/Novell,OpenWRT)
• Windows XP
• Solaris

Programming/Scripting Languages
• Perl
• PHP
• Bash Scripting
• C

Server Software
• Apache Webserver
• Sendmail/Postfix Mail servers
• FreeRadius (RADIUS Server) - used for enterprise level wireless authentication/authorization (WPA2)
• Asterisk - For VOIP and PBX system
• Spacewalk - An open source Linux systems management solution
• MySQL,PostgrSQL - RDBMS
• Drupal - build Content Management Systems (this site)
• MailScanner used to interface Mail Server with SpamAssassin with an anti-virus system (ClamAV)

Security
• Make extensive use of SSH, SSL/TLS (OpenSSL) and iptables on servers and workstations
• Use Nessus and NMAP for security testing
• use BASE for Network based IDS

University of Wisconsin - Milwaukee
Masters of Business Administration
Graduation December 1999

University of Wisconsin - Madison
Bachelor of Science, May 1993 Major: Mathematics with an emphasis on Computer Science