How to Compute Like a Grad Student Chris Colohan [email protected].
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Transcript of How to Compute Like a Grad Student Chris Colohan [email protected].
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Old History… <91 Concept Terminal w/ Vaxen 91 IBM RT 12MB/250MB 92 16MHz MIPS R3000 DecStation 3100 93 20MHz MIPS R3000 DecStation 5000/20 94 25MHz MIPS R3000 DecStation 5000/25
or PowerMac 7100/66 95 DecStation 5000/200s with mono
monitor 96 Sun SparcStation 4
(No, this is not a Moore’s law slide.)
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Recent History… 97 266MHz PII/64MB/4GB 98 400MHz PII/128MB/6GB 99 500MHz PIII/128M/8GB 00 733MHz PIII/256MB/20GB 01 1GHz PIII/512MB/40GB 02 1.8GHz PIV/1GB/60GB 03 2.4GHz PIV/1GB/80GB
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In Today’s Talk Administering your machine Communicating with others Kerberos and AFS Useful tips and links
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The RPP Be nice! Refill the printers Don't leave the printers jammed (x8-2607) Don't print big jobs during peak hours Ask facilities before you do strange things
broadcast packets move hardware commercial anything
looking through other people's files: get explicit permission first
look for permissions in their .plan ask them directly
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Do Today! .plan file door label home page Andrew
finger [email protected] login = first 8 digits of SS#
Email forwarding [email protected] name [email protected] name
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More to do today! Create username.root
telnet jeeveskerberos createusername.root
Mail facilities and ask for root on your machine
Local password: “passwd –l” Ask for a copy# from the main office
(WeH4212)
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How to get help Office mates Zephyr [email protected] Help desk (x8-4231) “how do I…?” Operator (x8-2607) “machines are
down…” Facilities advisory committee (
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Where does the money go? Costs money:
new kerberos Ids printing network ports software backups dialups (1-800)
Free: accounts on machines WaveLan
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Kerberos Log in, get a “ticket”
klist, kinit Tickets are good for 25 hours Used for:
Authentication (log into other machines without passwords)
Encryption (make sure nobody can snoop your connections)
Renew for 30 days: krenew (unix only) Renew forever: kkerberos (unix only) network/clock failurekerberos failurelogin
failure
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afs
/afs/cs/user/colohan/…
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Using afs Access control:
fs help fs listacl /afs/cs/user/colohan fs setacl /afs/cs/user/colohan colohan rlidwka mkdir ~/private fs setacl ~/private –clear colohan rlidwka Ignore unix permissions! Careful with mail directory permissions!
Turn tickets into tokens with aklog Quotas:
fs quota /afs/cs/user/colohan telnet jeeves
Backups in ~/OldFiles
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NOT Using afs Why not?
Writes go to server on close Can be slow (especially for builds)
Security Bits sent on network in the clear
Server or network down == no work for you
Use local disk (/usr0) May want to move home dir to /usr0
or create a local account on your machine
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Windows Run Windows update NOW Always log into SCS domain! Email
Use pop3 to your maildrop (ux#.cs.cmu.edu)
imap/Exchange in beta Do not run a client on the ux# servers!
Printing Printers off of \\monolith
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Windows cont. File sharing
AFS Can make a FAT partition if you want
Telnet/ssh putty (ssh) niftytelnet (kerberized telnet)
Peter Dinda’s FAQ
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Insert Windows Demo Here
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Linux Choose a window manager
edit ~/.xinitrc (WM=startkde) Depot
It “owns” /usr/local make your own collections become a misc maintainer
Getting local root if your machine dies vmware Local disk is /usr0 man cdrecord (or use a cdrecord gui)
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Insert Linux Demo Here
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Zephyr A reminder: ZINMT
Zephyr Is Not My Thesis Command line version:
zwgc (started by default) zwrite colohan –m “Lunch?”
Blatant plug: kzephyr!! Emacs zephyr mode For Windows: jzephyr (beta testers
wanted!) FZQ Zephyr archive (contains posting interface!)
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Public Zephyr Common “instances”:
help.*, chat.*, newsbites, graffiti, ephemera, sddd, *.d, facilities.announce, facilities.discussion
Don’t sign messages Don’t take people too seriously Andrew/MIT zephyr use is different Filter instances you are not
interested in
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Netnews (bboards) cmu.cs.scs: important announcements cmu.cs.*.announce: new software or
changes cmu.cs.general: general interest items cmu.misc.market: fun fun fun! On unix, use localhost as news server On Windows, use dnntpd.srv
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ssh
ssh –X [email protected]
scp gs138.sp:~/foobar ./
Very useful from off campus! Putty and TeraTerm ssh works well
in Windows
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Email filtering Create a .maildelivery file on your
maildrop machine (ux#) man maildelivery Use [email protected] man spamassassin-maildelivery
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More Resources SCS facilities help page Last year’s talk CMU web resources Jonathan Billings’ rh9 tip page man phone
This talk can be found at:
www.cs.cmu.edu/~colohan/ic03/htclags.htm
