1	How to Compute Like a Grad Student Chris Colohan colohan+@cs.cmu.edu
2	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
3	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
4	In Today’s Talk Administering your machine Communicating with others Kerberos and AFS Useful tips and links
5	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
6	Do Today! .plan file door label home page Andrew finger firstname.lastname@andrew.cmu.edu login = first 8 digits of SS# Email forwarding colohan@cmu.edu name ccolohan@andrew.cmu.edu name
7	More to do today! Create username.root telnet jeeves kerberos create username.root Mail facilities and ask for root on your machine Local password: “passwd –l” Ask for a copy# from the main office (WeH4212)
8	How to get help Office mates Zephyr help@cs.cmu.edu Help desk (x8-4231) “how do I…?” Operator (x8-2607) “machines are down…” Facilities advisory committee (dpelleg+@cs.cmu.edu)
9	Where does the money go? Costs money: new kerberos Ids printing network ports software backups dialups (1-800) Free: accounts on machines WaveLan
10	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 failureèkerberos failureèlogin failure
11	afs
12	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
13	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
14	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
15	Windows cont. File sharing AFS Can make a FAT partition if you want Telnet/ssh putty (ssh) niftytelnet (kerberized telnet) Peter Dinda’s FAQ
16	Insert Windows Demo Here
17	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)
18	Insert Linux Demo Here
19	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!)
20	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
21	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
22	ssh ssh –X colohan@ux4.sp.cs.cmu.edu scp gs138.sp:~/foobar ./ Very useful from off campus! Putty and TeraTerm ssh works well in Windows
23	Email filtering Create a .maildelivery file on your maildrop machine (ux#) man maildelivery Use username+foo@cs.cmu.edu man spamassassin-maildelivery
24	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