Berkeley CSUA MOTD:2002:May:08 Wednesday <Tuesday, Thursday>
Berkeley CSUA MOTD
2002/5/8-9 [Computer/Theory] UID:24748 Activity:high
5/7     Had this argument last week with a snobby co-worker of mine. He
        argued that the diff algorithm isn't linear. Why isn't it linear?
        \_ what a lame argument.
        \_ try reading it.  /usr/src/contrib/diff
        \_ punch him in the nose and point and laugh as blood runs down his
        \_ This is the algorithm used (according to diff's own docs):
           As you can see from the abstract, the worst-case performance
           is linear in the size of the file, but also dependent on the size
           of the minimal diff, D, with O(ND) being the actual bound. Whether
           that bound can be referred to as "linear" is a fuzzy question. Note
           also that the average-case performance in a supposedly reasonable
           model is O(N+D^2), which is "linear in N" by most people's
           definition of the term. -alexf
           \_ Fuck that.  Punch him in the nose instead.
2002/5/8 [Computer/SW/Database, Computer/SW/Languages/Perl] UID:24749 Activity:kinda low
5/7     Contract position working with a Perl/MySQL installation at Sonoma
        State available.  Mail tom if interested.
        \_ Will they blame me when MySQL peuks all over their data?
2002/5/8 [Recreation/Dating] UID:24750 Activity:very high
5/7     wtf is happening to the world? more israeli attacks,
        2 plane crashes, pipe bombs, seattle slew dying...
        \_ have you been asleep for the last few decades?  have you never
           cracked open a history book.  nothing's changed
                \_ in such a short interval for all this to happen
                   isn't very usual.
                   \_ Nor is it terribly unusual.
        \_ tech stocks sucking, rolling stones touring again, vanity fair
           calls chelsea a sex symbol, spiderman gets $100+ million,...ack
           calls aspolito a sex symbol, spiderman gets $100+ million,...ack
           \_ when did vanity fair call chelsea a sex symbol? i need to see
           wtf indeed...
           \_ when did vanity fair call aspolito a sex symbol? i need to see
                 --- ! orig poster
              \_ A sex symbol to some tasteless blind man, maybe.
                 \_ i have have braces too... huhuhuhuh uhuhuh..
        \_ Who cares about Seattle Slew dead?
           \_ yermom
              \_ Oh yeah, of course she cares when a stud is no longer
                 available to satisfy her.
2002/5/8 [Uncategorized] UID:24751 Activity:high
5/7     I never thought motd would degenerate faster than wall...
        \_ Who says it has?
           \_ yermom
           \_ who says it hasn't
                \_ the op, idiot.
2002/5/8-9 [Computer/Networking] UID:24752 Activity:very high
5/7     Do people actually run DHCP off of routers? What sounds worse, using
        routers or NT boxes?
        \_ routers have less virii..  i'd feel much more comfortable running
                             \_ you misspelled "viruses"
                                \_ and it's "fewer viruses," not "less
                                   viruses" (while we're being pedantic).
           dhcp from a cisco router than windows.
        \_ do you have any unix boxes? you could use a unix box as your dhcp
           server, and if you've got a cisco box, use "ip helper" to forward
           your dhcp packets across routers to your dhcp server. teh server
           can assign ip's based on originating subnet.
           \_ we do have a few unix boxes in our NOC running our web server,
              mail, etc. thanks.
        \_ I wouldn't do it off a router that's accessible to the outside.
           A breakin would just give away that much more info and control to
           an attacker.  unix,windows,etc can all easily run dhcp.  It's a
           very low end service even for a large network of hundreds or even
           thousands of machines.  The router management tools will suck in
           comparison to dhcp on any OS.
        \_ I don't understand... what's wrong with using a router for DHCP?
           Sorry to be naive.
        \_ thousands do just fine using dhcp services on linksys dsl routers.
           \_ thats not a real router nor real dhcp.  might as well do static
              assignment.  we're talking real environments not toys.  for toys
              it doesn't matter.  linksys dsl indeed... it's not even a real
                \_  if it forwards a packet, it's a router.
                    \_ I shall explain again: if you're using a dsl line then
                       you dont have enough machines to worry about dhcp.  If
                       you have a lot of machines such that you need dhpc, you
                       don't have a dsl line or linksys 'router'.  For your 2
                       linux boxes and a windows game machine behind your
                       linksys dsl 'router' you can easily do static ip and
                       not worry about it.  For an office of 50+ workstations,
                       you need dhcp to maintain sanity and you likely do not
                       run your office on a dsl line in this day and age.
                       Thank you for joining us in this conversation.  Your
                       input is appreciated.
                       \_ D00D, Y3R L1K3 5UCH 4 1337 N3TW0RX 3NG1N33R!!1!
                          C4N U T34CH U5 M0R3???
                          \_ No, I'm not elite.  I have a job.  Anyone with a
                             job or half a clue knows the same.  Thanks.
                       \_ if you support your neighbors' access to your DSL
                          line via 802.11b, DHCP is needed.
                          \_ yeah thats a popular use
                             \_ make a stupid blanket statement, pay the price.
                                \_ price? what price? theres no price and any
                                   idiot can make up anything.  if you could
                                   read youd see the parameters were already
                                   spelled out previously.  thank you for
                                   your participation.  you may leave now.
                \_ My Linksys does NAT and is a DHCP client and server.
                   \_ Yes, I'm sure it does.  See above.
2002/5/8 [Academia/Berkeley/CSUA, Computer/SW/OS/FreeBSD] UID:24753 Activity:nil
5/7     Two crashes in two days.  What's going on?
        \_ jkh resigned, thus his blessing has left f-bsd
           \_ so now soda shall run Darwin. --jon
        \_ soda crash or plane crash?
2002/5/8 [Uncategorized] UID:24754 Activity:nil
5/8     the motd is longer than 1 page and still has non-biking/linux stuff
        on it.  where's tom?
2002/5/8-9 [Academia/Berkeley/Ocf] UID:24755 Activity:high
5/8     what's the policy of virtual hosts on campus machines?  Can I point
        my say to say some <DEAD><DEAD> machine?  And have it
        do a virtual host for me?
        \_ ask hostmaster@nic to make sure it's ok. They'd know.
           \_ zuul.
        \_ tis better to ask forgiveness than permission.
        \_ No one can stop you from point something at a campus machine.
           Witness and However, no, you can't have a
           virtual host. I know it's against EECS net policy (and therefore
           against CSUA policy) and believe it's campuswide. The CSUA
           has already had one problem with this. -chialea
                \_ Virtual hosts are allowed in general - the OCF provides
                   them for student groups for example.  The problem the
                   CSUA got into was for having someone's .com pointing at
                   the site that the campus objected to.
                   \_ yeah, as long as it's a .edu, campus net policy is fine
                      with it. Anything else, and you have to get specia;
                      permission. It is possible, though, both and
             are hosted off of the OCF. - ajani
                      \_ yeah, sorry, I wasn't really exact. I blame the
                         vicodin ... yeah, that's it! :P -chialea
                         \_ Then you should give it away to those of us
                            who need the break from reality. Just Say No.
                            \_ hi paolo
                      \_ awesome, i didn't know was a campus group.
                         where can I join?
2002/5/8-9 [Computer/SW/Security] UID:24756 Activity:low
5/8     I'm thinking about using a block cipher to encrypt pkts
        in my application, but I'm running into a problems wtr
        transmitting/receiving the encrypted pkts. Here is
        what I want to do (given values are secret key K, plain
        text PT):
        1. Derive K1 (encryption key) from K and a random nonce
           N1 and derive K2 (HMAC key) from K and a random nonce N2
        2. Encrypt PT and H(PT) using K1: e = E(H(PT)|PT,K1)
        3. Calc. HMAC of the e: h = HMAC(e,K2)
        4. Transmit N1|N2|e|h (this would be a fixed size pkt)
        5. Recv. N1,N2,e,h
        6. Derive K1 and K2 from K using recv'd N1 and N2
        7. If HMAC(e) = h, then decrypt e: D(e,K2) = H(PT)|PT
        8. If the decrypted H(PT) matches a computes H(PT)
           return PT.
        What I don't know how to do is recover from the following
        * HMAC(e) of the recv'ed e != h
        * Decrypted H(PT) != computed H(PT)
        Since it it unlikely that the pkt was corrupted by trans.
        errors (I'm using TCP), the only way that this could happen
        is because of an active attacker. Is there any point in
        asking for a retransmit on the recv side if an active
        attacker is present?
        \_ post this to crypto@csua, you'll get better results than the
           motd.  Motd is full of dropouts and sysadmins.
           \_ Hi paolo. You're delusional again. Go back to bed.
              \_ who is this paolo?
                 \_ He was president for a long time, then he quit logging in.
2002/5/8 [Recreation/Dating] UID:24757 Activity:nil 66%like:24761 66%like:25000
5/8     chialea, do you have a boyfriend?  -your #1 fan
        \_ do you? -chialea #1 fan #1 fan
        \_ or girlfriend? -your #1 fanette
        \_ I don't have either, but I'm not lesbian or bisexual, sorry.
           \_ I think you just let down every girl in the csua.
           \_ "Inexplicable Mass Migration of Male CS Students to CMU
              Reported for Fall 2002"
2002/5/8 [Computer/SW/SpamAssassin] UID:24758 Activity:nil 63%like:24770
5/8     anyone have a good procmail setup for filtering spam, or know
        where to get one?  Just looking for something fairly basic.
2002/5/8-10 [Computer/SW/Languages/Web] UID:24759 Activity:nil
5/8     Anybody knows where I can find an FAQ on creating a cgi-bin
        for my webpage on soda?
        \_ anyone want to install a servlet engine on soda so
           we can use JSP?
         \_ I second this: Perl CGI is outdated technology.
            Also add a Tomcat server for web services.
        \_ Shouldn't that be "a FAQ"?
           \_ "an FAQ" is ok if you pronounce it "ef-ay-que".
             \_ I pronounce it "fack", as in FAQ U, luser.
2002/5/8-9 [Academia/UCLA] UID:24760 Activity:moderate
5/8     UCLA ee guy, what's your verdict?
        \_ 2 years in state pen, then 3 years supervised release.
                \_ that's tough for a grad student
                   \_ How so?  Get raped either way.
2002/5/8-9 [Recreation/Dating] UID:24761 Activity:moderate 66%like:24757
5/8     chialea, do you have a boyfriend?  -your #1 stalker
        \_ do you? -chialea #1 stalker #1 stalker
        \_ or girlfriend? -your #1 stalker-ette
        \_ I don't have either, but I'm not lesbian or bisexual, sorry.
           \_ I think you just let down every girl in the csua.
                                          \_ you mean "both"?
           \_ "Inexplicable Mass Migration of Male CS Students to CMU
                        \_  ew ew ew, no, sorry, not let down  -girl
           \_ "Inexplicable Mass Migration of Male CS Students to Stanfraud
              Reported for Fall 2002"                         /
                                    i think you mean "from" _/
        \_ lea is not gay... but some of her friends may be..
           \_ lea has GAY FRIENDS?!  I'm sure as hell not gonna stalk her
              any more.  that's just crazy talk.
2002/5/8-9 [Uncategorized] UID:24762 Activity:moderate
5/8     I didn't make it to CMU and I'm really sad. I REALLY want to live in
        Pittsburg for personal reasons. Are there hi-tech companies there?
                      \_ Hi chialea #1 fan! -chialea #1 fan #1 fan
        \_ you would think that an area with CMU would have high tech
           companies over there.
           \_ They didn't tell you?  Tech died a year ago.
        \_ I saw some down by one of the rivers, but I don't know what's
           over there exactly, sorry. -chialea
           \_ Maybe you have a spare bedroom or couch space for your stalkers?
2002/5/8-10 [Computer/Theory] UID:24763 Activity:nil
5/8     Which class teaches you polynomial arithmetic?
        \_ Math 32, remedial pre-calculus. Or did you mean the study of formal
           polynomials? Then it's Math 113, some incarnations of 114, probably
           parts of 250A, and 251. -alexf
2002/5/8-9 [Uncategorized] UID:24764 Activity:nil
5/8     Trimmed by age.
2002/5/8-10 [Uncategorized] UID:24765 Activity:moderate
5/8     On it says
        x15+1 = (1+x)(1+x+x2)(1 + x + x2 + x3 + x4)(1 + x + x4)(1 + x3 + x4)
        How does one factor that?
        \_ You pull out all the x's and divide them out.  Yeah.
        \_ Note that they are working over Z/2 [x], not Z[x]
           (clearly the factorization is not correct in Z[x])
           So x^15+1=x^15-1 which is easier to factor: you get the first
           4 terms fairly easily by using the fact the fact that
           x^a-1=(x-1)(x^(a-1) + x^(a-2) + .... + x + 1)
                \_ my problem with this is that after a while I get nothing
                   but (x-1) terms around and none compute the term
                   (1+x+x2)(1 + x + x2 + x3 + x4)(1 + x + x4)(1 + x3 + x4)
                   \_ yes.
2002/5/8-10 [Uncategorized] UID:24766 Activity:kinda low
5/8     How do you find out which profs are on the admission comittee?
        \_ You ask. Aiken is perennially the chair. Trevisan was on this
           year's, but that means he's unlikely to be on it next year. Don't
           know about the others.
        \_ want to know which asses you need to kiss? is felching now an entry
                \_ only when entering yermom
2002/5/8-9 [Recreation/Dating, Computer/Networking] UID:24767 Activity:kinda low
5/8     Is Cisco hiring? I LOVE CISCO.
        \_ You just want to eat lunch at the 99 Ranch complex everyday and
           scope out the h0t ch1x.
           \_ There are h0t ch1x over there on weekdays?
             \_ At about 3PM all the Asian schoolgirls arrive.
           \_ Try the thai place on the southern arm.  they're quite decent.
2002/5/8-9 [Uncategorized] UID:24768 Activity:nil
5/8     Wednesday, May 8
2002/5/8-9 [Science/GlobalWarming] UID:24769 Activity:very high
        5-7 pm
        Upper Sproul Plaza
        Why does the University of California manage the only two labs in
        the country that conduct research regarding the massive US
        nuclear stockpile?
        Every nuclear weapon in the US arsenal was designed and tested by
        the UC. Under the Bush Administration, how much more destruction
        will the UC manage?
        Wednesday, May 8 5-7 pm Upper Sproul Plaza
        \_ You're right we should have some stoners at Florida State do all
           the research.  Good idea.  And as was said previously there has been
           *ZERO* nuclear destruction post WW2 (thats another thread).  There
           have been *ZERO* nuclear strikes.  Maybe you live on another planet
           where it is better that the Florida State stoners keep track of
           things and tell us how to best maintain and dispose of them with
           least risk to the environment.  Woo hoo!  Go Florida State U! FSU!
           \_ except for those tests all over the pacific. not to mention
              south asia. it's not about strikes.  it's about universal
              blackmail, and unthinkable prospects for our future.
              \_ you mean the tests that are now 100% computer simulations?
                 the ones only a place like LLBL could do?  And maybe you
                 failed to notice any major wars on this planet since 1945?
                 Dude, you're seriously living in the 1980s.  Nukes in the
                 hands of the world's major powers are one of the smallest
                 concerns the human race has today.  Live in the now, not the
                 1980s.  So retro... I love the motd.
                 \_ and maybe YOU failed to notice the tit for tat tests
                    india and pakistan set off last year.  god.  how 'bout
                    instead of living ignorantly in the now, you pay a
                    little bit of attention.
                    \_ Oh?  I wasn't aware that UC is in charge of the Indian
                       and Pakistani nuclear stockpiles....  You're right. I
                       am ignorant and I apologise for not knowing something
                       like that.  I'll pay better attention in the future to
                       which countries UC is doing nuke work for.
                       \_ You're not even worth the time to say this, but the
                          drive of the original post is that the don't want
                          the UC to be supporting the nuclear capability of
                          the country.  they're not suggesting they shift it
                          to another school.  they're suggesting that if the
                          government feels nuclear maintenance is necessary,
                          they should do it their own damn self, and the UC
                          should swear it off.  get your head out of that
                          pig's ass.
2002/5/8-10 [Computer/SW/SpamAssassin] UID:24770 Activity:nil 63%like:24758
5/8     anyone have a good procmail setup for filtering spam, or know
        where to get one?  Just looking for something fairly basic.
| /usr/local/bin/spamc

:0 hwc:
* ^X-Spam-Status: Yes
2019/01/20 [General] UID:1000 Activity:popular
Berkeley CSUA MOTD:2002:May:08 Wednesday <Tuesday, Thursday>