Fun_People Archive
1 Oct
Know Your Unix Sysadmin
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From: Peter Langston <psl>
Date: Wed, 1 Oct 97 13:34:21 -0700
To: Fun_People
Subject: Know Your Unix Sysadmin
[If you've never used a time-shared Unix system you may not understand all
of this. But some of you will not only understand it, you'll know the
people they're describing... personally... -psl]
Forwarded-by: Dan Hunt <dan@opnsys.com>
KNOW YOUR UNIX SYSTEM ADMINISTRATOR
------------------------------------------------------------------------
There are four major species of Unix sysad:
1) The TECHNICAL THUG. Usually a systems programmer who has been forced into
system administration; writes scripts in a polyglot of the Bourne shell,
sed, C, awk, perl, and APL.
2) The ADMINISTRATIVE FASCIST. Usually a retentive drone (or rarely, a
harridan ex-secretary) who has been forced into system administration.
3) The MANIAC. Usually an aging cracker who discovered that neither the
Mossad nor Cuba are willing to pay a living wage for computer espionage.
Fell into system administration; occasionally approaches major
competitors with indesp schemes.
4) The IDIOT. Usually a cretin, morpohodite, or old COBOL programmer
selected to be the system administrator by a committee of cretins,
morphodites, and old COBOL programmers.
------------------------------------------------------------------------
SITUATION: Low disk space
* TECHNICAL THUG: Writes a suite of scripts to monitor disk usage,
maintain a database of historic disk usage, predict future disk usage
via least squares regression analysis, identify users who are more than
a standard deviation over the mean, and send mail to the offending
parties. Places script in cron. Disk usage does not change, since
disk-hogs, by nature, either ignore script-generated mail, or file it
away in triplicate.
* ADMINISTRATIVE FASCIST: Puts disk usage policy in motd. Uses disk
quotas. Allows no exceptions, thus crippling development work. Locks
accounts that go over quota.
* MANIAC:
# cd /home
# rm -rf `du -s * | sort -rn | head -1 | awk '{print $2}'`;
* IDIOT:
# cd /home
# cat `du -s * | sort -rn | head -1 | awk '{ printf "%s/*\n", $2}'` | \
compress
------------------------------------------------------------------------
SITUATION: Excessive CPU usage.
* TECHNICAL THUG: Writes a suite of scripts to monitor processes,
maintain a database of CPU usage, identify processes more than a
standard deviation over the norm, and renice offending processes.
Places script in cron. Ends up renicing the production database into
oblivion, bringing operations to a grinding halt, much to the delight
of the xtrek freaks.
* ADMINISTRATIVE FASCIST: Puts CPU usage policy in motd. Uses CPU quotas.
Locks accounts that go over quota. Allows no exceptions, thus crippling
development work, much to the delight of the xtrek freaks.
* MANIAC:
# kill -9 `ps -augxww | sort -rn +8 -9 | head -1 | awk '{print $2}'`
* IDIOT:
# compress -f `ps -augxww | sort -rn +8 -9 | head -1 | awk '{print $2}'`
------------------------------------------------------------------------
SITUATION: New account creation.
* TECHNICAL THUG: Writes perl script that creates home directory, copies
in incomprehensible default environment, and places entries in
/etc/passwd, /etc/shadow, and /etc/group. (By hand, NOT with passmgmt.)
Slaps on setuid bit; tells a nearby secretary to handle new accounts.
Usually, said secretary is still dithering over the difference between
'enter' and 'return'; and so, no new accounts are ever created.
* ADMINISTRATIVE FASCIST: Puts new account policy in motd. Since people
without accounts cannot read the motd, nobody ever fulfills the
bureaucratic requirements; and so, no new accounts are ever created.
* MANIAC: "If you're too stupid to break in and create your own account,
I don't want you on the system. We've got too many goddamn
sh*t-for-brains a**holes on this box anyway."
* IDIOT:
# cd /home; mkdir "Bob's home directory"
# echo "Bob Simon:gandalf:0:0::/dev/tty:compress -f" > /etc/passwd
------------------------------------------------------------------------
SITUATION: Root disk fails.
* TECHNICAL THUG: Repairs drive. Usually is able to repair filesystem
from boot monitor. Failing that, front-panel toggles microkernel in and
starts script on neighboring machine to load binary boot code into
broken machine, reformat and reinstall OS. Lets it run over the weekend
while he goes mountain climbing.
* ADMINISTRATIVE FASCIST: Begins investigation to determine who broke the
drive. Refuses to fix system until culprit is identified and charged
for the equipment.
* MANIAC, LARGE SYSTEM: Rips drive from system, uses sledgehammer to
smash same to flinders. Calls manufacturer, threatens pets. Abuses
field engineer while they put in a new drive and reinstall the OS.
* MANIAC, SMALL SYSTEM: Rips drive from system, uses ball-peen hammer to
smash same to flinders. Calls Requisitions, threatens pets. Abuses
bystanders while putting in new drive and reinstalling OS.
* IDIOT: Doesn't notice anything wrong.
------------------------------------------------------------------------
SITUATION: Poor network response.
* TECHNICAL THUG: Writes scripts to monitor network, then rewires entire
machine room, improving response time by 2%. Shrugs shoulders, says,
"I've done all I can do," and goes mountain climbing.
* ADMINISTRATIVE FASCIST: Puts network usage policy in motd. Calls up
Berkeley and AT&T, badgers whoever answers for network quotas. Tries to
get xtrek freaks fired.
* MANIAC: Every two hours, pulls ethernet cable from wall and waits for
connections to time out.
* IDIOT:
# compress -f /dev/en0
------------------------------------------------------------------------
SITUATION: User questions.
* TECHNICAL THUG: Hacks the code of emacs' doctor-mode to answer new
users questions. Doesn't bother to tell people how to start the new
"guru-mode", or for that matter, emacs.
* ADMINISTRATIVE FASCIST: Puts user support policy in motd. Maintains
queue of questions. Answers them when he gets a chance, often within
two weeks of receipt of the proper form.
* MANIAC: Screams at users until they go away. Sometimes barters
knowledge for powerful drink and/or sycophantic adulation.
* IDIOT: Answers all questions to best of his knowledge until the user
realizes few UNIX systems support punched cards or JCL.
------------------------------------------------------------------------
SITUATION: *Stupid* user questions.
* TECHNICAL THUG: Answers question in hex, binary, postfix, and/or French
until user gives up and goes away.
* ADMINISTRATIVE FASCIST: Locks user's account until user can present
documentation demonstrating their qualification to use the machine.
* MANIAC:
# cat >> ~luser/.cshrc
alias vi 'rm \!*;unalias vi;grep -v BoZo ~/.cshrc > ~/.z; \
mv -f ~/.z ~/.cshrc'
^D
* IDIOT: Answers all questions to best of his knowledge. Recruits user to
system administration team.
------------------------------------------------------------------------
SITUATION: Process accounting management.
* TECHNICAL THUG: Ignores packaged accounting software; trusts scripts to
sniff out any problems & compute charges.
* ADMINISTRATIVE FASCIST: Devotes 75% of disk space to accounting records
owned by root and chmod'ed 000.
* MANIAC: Laughs fool head off at very mention of accounting.
* IDIOT:
# lpr /etc/wtmp /usr/adm/paact
------------------------------------------------------------------------
SITUATION: Religious war, BSD vs. System V.
* TECHNICAL THUG: BSD. Crippled on System V boxes.
* ADMINISTRATIVE FASCIST: System V. Horrified by the people who use BSD.
Places frequent calls to DEA.
* MANIAC: Prefers BSD, but doesn't care as long as HIS processes run
quickly.
* IDIOT:
# cd c:
------------------------------------------------------------------------
SITUATION: Religious war, System V vs. AIX
* TECHNICAL THUG: Weeps.
* ADMINISTRATIVE FASCIST: AIX-- doesn't much care for the OS, but loves
the jackboots.
* MANIAC: System V, but keeps AIX skills up, knowing full well how much
Big Financial Institutions love IBM...
* IDIOT: AIX.
------------------------------------------------------------------------
SITUATION: Balky printer daemons.
* TECHNICAL THUG: Rewrites lpd in FORTH.
* ADMINISTRATIVE FASCIST: Puts printer use policy in motd. Calls customer
support every time the printer freezes. Tries to get user who submitted
the most recent job fired.
* MANIAC: Writes script that kills all the daemons, clears all the print
queues, and maybe restarts the daemons. Runs it once a hour from cron.
* IDIOT:
# kill -9 /dev/lp ; /dev/lp &
------------------------------------------------------------------------
SITUATION: OS upgrade.
* TECHNICAL THUG: Reads source code of new release, takes only what he
likes.
* ADMINISTRATIVE FASCIST: Instigates lawsuit against the vendor for
having shipped a product with bugs in it in the first place.
* MANIAC:
# uptime
1:33pm up 19 days, 22:49, 167 users, load average: 6.49, 6.45, 6.31
# wall
Well, it's upgrade time. Should take a few hours. And good luck on that
5:00 deadline, guys! We're all pulling for you!
^D
* IDIOT:
# dd if=/dev/rmt8 of=/vmunix
------------------------------------------------------------------------
SITUATION: Balky mail.
* TECHNICAL THUG: Rewrites sendmail.cf from scratch. Rewrites sendmail in
SNOBOL. Hacks kernel to implement file locking. Hacks kernel to
implement "better" semaphores. Rewrites sendmail in assembly. Hacks
kernel to . . .
* ADMINISTRATIVE FASCIST: Puts mail use policy in motd. Locks accounts
that go over mail use quota. Keeps quota low enough that people go back
to interoffice mail, thus solving problem.
* MANIAC:
# kill -9 `ps -augxww | grep sendmail | awk '{print $2}'`
# rm -f /usr/spool/mail/*
# wall
Mail is down. Please use interoffice mail until we have it back up.
^D
# write max
I've got my boots and backpack. Ready to leave for Mount Tam?
^D
* IDIOT:
# echo "HELP!" | mail tech_support.AT.vendor.com%kremvax%bitnet!BIFF!!!
------------------------------------------------------------------------
SITUATION: Users want phone list application.
* TECHNICAL THUG: Writes RDBMS in perl and Smalltalk. Users give up and
go back to post-it notes.
* ADMINISTRATIVE FASCIST: Oracle. Users give up and go back to post-it
notes.
* MANIAC: Tells the users to use flat files and grep, the way God meant
man to keep track of phone numbers. Users give up and go back to
post-it notes.
* IDIOT:
% dd ibs=80 if=/dev/rdisk001s7 | grep "Fred"
------------------------------------------------------------------------
TYPICAL ROOT .cshrc FILE:
* TECHNICAL THUG: Longer than eight kilobytes. Sources the output of a
perl script, rewrites itself.
* ADMINISTRATIVE FASCIST: Typical lines include:
umask 777
alias cd 'cd \!*; rm -rf ching *hack mille rogue xtrek >& /dev/null &'
* MANIAC: Typical lines include:
alias rm 'rm -rf \!*'
alias hose kill -9 '`ps -augxww | grep \!* | awk \'{print $2}\'`'
alias kill 'kill -9 \!* ; kill -9 \!* ; kill -9 \!*'
alias renice 'echo Renice\? You must mean kill -9.; kill -9 \!*'
* IDIOT: Typical lines include:
alias dir ls
alias era rm
alias kitty cat
alias process_table ps
setenv DISPLAY vt100
------------------------------------------------------------------------
HOBBIES, TECHNICAL:
* TECHNICAL THUG: Writes entries for Obsfuscated C contest. Optimizes
INTERCAL scripts. Maintains ENIAC emulator. Virtual reality .
* ADMINISTRATIVE FASCIST: Bugs office. Audits card-key logs. Modifies old
TVs to listen in on cellular phone conversations. Listens to police
band.
* MANIAC: Volunteers at Survival Research Labs. Bugs office. Edits
card-key logs. Modifies old TVs to listen in on cellular phone
conversations. Jams police band.
* IDIOT: Ties shoes. Maintains COBOL decimal to roman numeral converter.
Rereads flowcharts from his salad days at Rand.
------------------------------------------------------------------------
HOBBIES, NONTECHNICAL:
* TECHNICAL THUG: Drinks "Smart Drinks." Attends raves. Hangs out at
poetry readings and Whole Earth Review events and tries to pick up
Birkenstock MOTAS.
* ADMINISTRATIVE FASCIST: Reads _Readers Digest_ and _Mein Kampf_.
Sometimes turns up car radio and sings along to John Denver. Golfs.
Drinks gin martinis. Hangs out in yuppie bars and tries to pick up
dominatrixes.
* MANIAC: Reads _Utne Reader_ and _Mein Kampf_. Faithfully attends
Dickies and Ramones concerts. Punches out people who say "virtual
reality." Drinks damn near anything, but favors Wild Turkey, Black
Bush, and grain alcohol. Hangs out in neighborhood bars and tries to
pick up MOTAS by drinking longshoremen under the table .
* IDIOT: Reads _Time_ and _Newsweek_-- and *believes* them. Drinks
Jagermeister. Tries to pick up close blood relations-- often succeeds,
producting next generation of idiots.
------------------------------------------------------------------------
COMPOUND SYSTEM ADMINISTRATORS:
* TECHNICAL FASCIST: Hacks kernel & writes a horde of scripts to prevent
folk from ever using more than their fair share of system resources.
Resulting overhead and load brings system to its knees.
* TECHNICAL MANIAC: Writes scripts that SEEM to be monitoring the system,
but are actually encrypting large lists of passwords. Uses nearby nodes
as beta test sites for worms.
* TECHNICAL IDIOT: Writes superuser-run scripts that sooner or later do
an "rm -rf /".
* FASCISTIC MANIAC: At first hint of cracker incursions, whether real or
imagined, shuts down system by triggering water-on-the-brain detectors
and Halon system.
* FASCISTIC IDIOT:
# cp /dev/null /etc/passwd
* MANIACAL IDIOT: Napalms the CPU.
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© 1997 Peter Langston
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