Alexander Ölzant's Resume
Various Data
- Nickname (e-mail/irc alias)
- aoe
- NIC handle (still valid at RIPE and nic.priv.at ;))
- ao418
- Date of birth
- approximately Tue Jul 15 21:00:00 CEST 1975 or 174682800 seconds of the epoch
- First computer
- 1987 SVI-728 MSX-1 with audio cassette storage
- Programming Languages (that I am not ashamed of)
- perl, C
- Editor
- vi (preferrably vim, see also Sven Guckes' page)
- OSes in use
- Linux (almost exclusively since 1996: both privately and at work
slackware, redhat, gentoo and my favourite, debian); AIX; I have a good
excuse (though
no reason) not to use *BSDs
update: experimental nfsroot FreeBSD installation for my workstation (pxelinux -> pxeroot -> nfsroot (including kernel, easy way out)) - daemons set up from scratch and at least intensively tried out
- sendmail, bind, innd, isode dsa, ldapd
- Unix milestones
-
- read The Cuckoo's Egg by Clifford Stoll in 1988, from which I knew that Unix was better than VMS (ironically my only real (ie non-x86 linux) workstation - or rather server in an appropriate server graveyard - was a VAXstation for a while)
- obtained a unet-account from University of Vienna in 1995 which also enabled me to read my first manpage (chmod)
- set up linux first 1996, went to exclusive use of unix at the end of the year
- kernel and application hacking for various projects ever since
- RL Languages
- German (mother tounge), English, Spanish (with a certain lack of correctness), French (forgot most of what I learned at school, but reading comprehension is still acceptable), Latin
- Relevant system administrative experience
- sendmail, bind, xdm, apache, linux ipfwadm/ipchains/iproute/tc, dhcpd, tftpd, rpld, nfsd, xntpd
- Favourite works of reference on my bookshelf
- Stevens' TCP/IP Illustrated, Knuth's TAOCP, O'Reilly's Sendmail and BIND books
Projects
- bluebox association co-administration
- mars - Linux Booten in den internetRaeumen der TU Wien (LBR): co-administration, smb-symlink patch, bootdisk creation
- fsinf - Fachschaft Informatik an der TU Wien: mail administration, client remote boot installation and administration, cd-burner cgi interface for select clients
- My home network complete with mail server, masq gateway and remote boot server for the silent workstations
- Linux booten @ ZA - a quick and dirty nfsroot setup
- ipsec x.509 setup (see under orkplaces below)
- tc bandwidth shaper setup (see under orkplaces below)
A Selection of some of my Solutions
- A 16M RAM upgrade and various app/kernel patches for the Agenda VR3 Linux PDA (update: a 16 MB model is now sold by the canadian company Softfield)
NICs: patched etherboot and linux to assume different MACs at various stages of the boot process to work around a broken 3c905b
a short while later I discovered that "only" the eeprom of the card had been garbled, patched vortex-diag again to allow for eeprom backup and reprogrammed the eeprom (MAC-address and all) from a known working card, which also made the fd/hd-problem disappear
patched Donald Becker's tools to permanently change the MAC address in the eeprom of RTL8139 cards
- patched linux 2.0/2.2/2.4 to emulate symlinks on smbfs so users could have those in their samba-exported homedirs
- wrote a patch for xdm to provide for ssh access to arbitrary servers without the necessity of creating a local (dummy) account (fsinf-xterminals)
- (Together with Roman Hochleitner) glue patch to interface libaviplay with mpeg encoders
- worked around a mail routing failure (aka firewall)
- sendmail rules for live realname recipient expansion from ldap (long-lost)
- cdda->mp3 ripper script for my mp3-player
- goddess hw mp3 player (done for a lab at university together with g, f/0, zd, mzannoni, sc)
- one of the ubiquitous search scripts
- obtained VMS through the Compaq hobbyist program and set it up on the VAX
- tailored chroot environments for scp only or for access to some network tools
- wrote a perl-oneliner to raise the jiffies (and thus uptime) of a linux systems to arbitrary lengths (practical for testing the wraparound bug; don't try this on your server!)
- nntp-gateway-script for vbulletin (mail me if you're interested in a phpbb version or something similar ... ;))
Hard/Software I tried out (on many I only ever had accounts for a short period of time, respectively deleted everything shortly after the configure; make; make install cycle)
- old computers: MSX-1: MSX-Basic (wrote a minesweeper and other things quite irrelevant
today; looking back, a floppy drive and CP/M would have been nice)
Atari ST/GFA Basic: The time when I neglected to learn C and install MiNT (a unix-like environment replacing TOS) ... - apache, roxen; squid, oops; tftpd, utftpd, yale-tftpd; bootpd, bootpgw, dhcpd2/3; postgresql, mysql
- 4400: Linux on Macintosh PPC (mklinux DR 2.0,
ppclinux; then there were no colored dogs or Debian GNU/Linux ppc distros)
Powerbook g4 (using the step by step instructions by christophe barbé) - mtvp, mtv-sdk; mplayer; smpeg/plaympeg/gtv; mpeg2_movie/broadcast2000/mpeg2encode; dvdview/sampeg2; ffmpeg
- samba administration: printer setup, account creation cgis, ...
- novell router configuration (basic adaption only, no in-depth setup experience)
- TODO: ls /usr/src ;)
- wlan: ipsec-setups with frees/wan and kame, tested also with win2k clients using Marcus Müller's ipsec tool (at NBS)
Hobbies
- IRC: #jutesack (see also jutesack.org) on ircnet, various channels on irc.freenode.net, connected irc-servers on giga and iswjestija as well as frost.htu.tuwien.ac.at with hvr's joplin.ifs.tuwien.ac.at
- reading (mostly more or less low brow sci-fi and detective novels, occasionally interspersed with Margaret Drabble or even Iris Murdoch; Isabel Allende and Gioconda Belli amongst other latin american fantastic realists make a nice change)
Orkplaces for Pay
| Name/URL of Company | Time of Employment | One Line Job Description | |||
|---|---|---|---|---|---|
| Navinet Business Software http://www.nbs.at/ | 8/2002 - 1/2004 | firewall administration and unix system programming | |||
| Research Industrial Software Engineering http://rise-world.com/ | 1/2004 - 12/2006 | embedded Linux system programming | Cenarion Information Systems GmbH | 3/2007 - 9/2014 | Debian GNU/Linux system administration |