Name:	Spans
First name(s):	Sten S.
Date of Birth:	January 16, 1979
Place of Birth:	Utrecht, The Netherlands
Marital Status:	Single
Nationality:	Dutch
Drivers License:	Yes

Title	Institute	Duration	Diploma
MCSE	Azlan	01-1999 - 05-1999	Yes
Study CKI	University of Utrecht	09-1997 - 08-1998	No
VWO	St. Bonifatius College	09-1991 - 08-1997	Yes

• AIX Servers
• C-ISAM Database software
• CQCS development platform

• Administration Windows NT servers
• Novell Network
• Groupwise Email platform

• PC Imaging using Ghost
• Novell network
• Token-ring network

• Customer consultancy
• MCSE

• 30-40 Linux servers ( Redhat 5, 6, 7, RHES 3 and Debian )
• 10-20 FreeBSD servers
• NetAPP NFS Cluster
• 5 MySQL servers
• 5 DNS servers
• 2 Radius servers
• NIS, FTP and Shell servers
• Redundancy Solutions using VRRP and custom software
• Development and Administration of custom backup solution
• Maintenance, Development and tuning of webserver software ( WN and Apache )
• /16 IP Allocation
• Hardware purchasing advice
• Administration and development of VuurWerk standard cgi's ( C )
• Development of Systems Administration software ( Perl, Bash )
• Security tuning ( firewalls, TCP wrappers, vroots, kernel patches, capabilities )

• 30-40 Linux servers ( Redhat 7, Fedora, RHAS 2.1, Gentoo and Debian )
• 20-30 FreeBSD servers
• Administration FreeBSD vlan routers
• Redundancy Solutions using CARP and LVS (Keepalived)
• Development and maintenance of new Shared Hosting environment
• Development and maintenance of new Managed Mail Environment (Postfix)
• Development and maintenance of Nagios and Cacti server for Ilse
• Custom Apache Modules and Patches
• Linux and FreeBSD Kernel Modules
• Hardware purchasing advice
• Development of Systems Administration software ( Perl, Bash )
• Development and Maintenance of several Web interfaces
• Technical Support and Guidance for the Department

• NetAPP NFS/ISCSI Filers
• Redundant DNS/NTP using CARP and now BGP
• Custom Debian/Ubuntu PXE Code
• CFengine Platform (svn, scripts and modules)
• Debian/Ubuntu Package Building Infrastructure
• Rsync and Fibrechannel based backup solution
• Multithreaded Perl SNMP poller
• Nagios Inplementation (custom checks, failover and nagios patches)
• Redundant LDAP Deployment and Integration
• Custom Apache Module Development
• Custom Linux Security Module Development

• Linux Kernel Development
• OpenBSD Kernel Development
• Security Daemon Development
• Software Packaging

• Extensive Experience with Debian, Ubuntu and RedHat ( 6.X, 7.X, RHES 3 ),
  FreeBSD ( 4.x - 8.x ), Solaris ( 8, 9, 10 ), OpenBSD
• Hands-on Experience with Tru64, IRIX, AIX en HP-UX
• Expert Webserver software knowledge ( Apache, WN )
• FTP ( proftpd, vsftpd, pureftpd ), NIS ( FreeBSD, Linux ),
  DNS (TinyDNS, BIND, PowerDNS), Radius, LDAP, MySQL, PHP
• Expert Unix Shell scripting knowledge
• Extensive Perl experience (scripting and web-based tools)
• Extensive CFengine Experience

• Extensive Experience running NetAPP Filers, hardware ( F760, F810, F840, FC9, DS-14 ) and software ( Ontapp - clustering, virtual interfaces, snapmirror, nfs, cifs, http )
• Technical knowledge of Intel hardware ( smp, acpi, scsi, ide, fcal, atx )
• Experience running Sun hardware, Dell servers, Alphaservers
• SNMP Network Management (Custom threaded poller, integration )

• Hardening ( suid strip, custom vroots/jails, minimal install, privilege seperation, etc. )
• Kernel Patches, Custom Kernel Modules
• tcpwrappers, firewall software ( ipchains, iptables, ipfw, pf )
• OpenSSH, key-based autorisation

• IP Management IPv4 and IPv6
• VRRP, CARP, BGP
• 802.1q Vlans, also on Linux/FreeBSD/NetAPP/Solaris
• Ethernet ( Intel, 3com, Sun, Cisco, Broadcom )
• Low-Level Ethernet Multicast (LLDP, CDP, EDP, FDP)

• Unix/Linux Systems Administration
• Webserver Development, SVN
• FreeBSD / Linux / Solaris Kernel Development
• Hardware, Boxen
• Networking, Ladvd
• Software Development, SVN
• NTP Timekeeping