Entry 36212 (Berkeley CSUA MOTD)

Berkeley CSUA MOTD:Entry 36212

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2025/04/03 [General] UID:1000 Activity:popular

4/3

2005/2/17 [Computer/Networking] UID:36212 Activity:nil

2/17    IP/UDP question. How do packet sniffers work? The OS takes care of
        low level ethernet card stuff and filters out UDP/TCP before they even
        redirect those packets to applications, so how do sniffers by-pass
        this mechanism? I'm asking because I'd like to write a sniffer in
        Java and I'm not even sure if Java can specify low level ethernet
        frame details and by-pass the filtering/classification process. ok thx.
        \_ In unix you put a card into promiscuous mode (look at how tcpdump
           does it.)  Unter Windows look into NDIS--it only allows "raw"
           access to the if for some drivers/hardware.  This is why there are
           no good passive wifi scanners under Windows (correct me if I'm
           wrong, please.)  -John

2025/04/03 [General] UID:1000 Activity:popular

4/3

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2011/12/29-2012/2/6 [Computer/Networking, Computer/SW/Security] UID:54277 Activity:nil

12/29   New brute force attack against WPA1/2 base stations based on a flaw
        in WiFi Protected Setup (WPS):
        http://www.kb.cert.org/vuls/id/723755
        http://www.tacnetsol.com/products
        http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability
	...

2009/6/3-5 [Consumer/CellPhone, Computer/Networking] UID:53075 Activity:moderate

6/3     Any phone geeks on here?  I want to get a new smartphone, preferably
        with wifi, touchscreen, and 3.5mm headphone jack.  I don't plan to pay
        the monthly $$ for a data plan though, since wifi is good enough for
        me.  That rules out the iPhone due to AT&T's policies.
        Maybe I should get some sort of Nokia N-series.
        \_ Wait one week and get a pre?
	...

2009/4/17-23 [Computer/Networking, Transportation/PublicTransit] UID:52862 Activity:nil

4/17    "WiFi Rail Inc. to provide wifi access on BART system"
        http://www.bart.gov/news/articles/2009/news20090202.aspx
        (not exactlly new news)
	...

2009/2/17-19 [Computer/HW/Drives] UID:52586 Activity:kinda low

2/16    What's the best way to turn your iPhone into a hard-drive/backup
        device (while not jail-breaking it)?
        \_ I use a program called Discover which turns your iPhone into a FTP
           site using wifi.  -scottyg
           \_ Looks like it's free, great! Any problems you've seen on it?
              Some people online says there are problems with big files.
	...

2008/8/5-10 [Academia/Berkeley/Classes, Computer/Companies/Apple, Computer/Networking] UID:50780 Activity:nil

8/4     http://iCrowdSurf.com - app available on Iphone app store..
        if the library has a wifi you can use it to create instant chat
        rooms/groups and name the group by topic (ie: CS 152 midterm)..etc
        check it out..
        \_ It's not free.
        \_ So this essentially turns your phone into an open server?  I wonder
	...

2008/6/16-20 [Computer/Networking] UID:50272 Activity:nil

6/16    What the minimum you can get away with paying for cable modem,
        in the South Bay?  Slowest available speed should be ok.
        Everythings seems to go to +$40/mo after teaser rates end.
        I need something faster than 56k modem but nothing really fast.
        Wondering if possible to keep under $20, since I'm out of town
        maybe 25% of the time.
	...

2008/6/6-10 [Computer/Networking] UID:50171 Activity:nil

6/6     Now that 3g wireless speeds are getting useable and phones are
        coming out that have built in wifi are there any phones that
        can be used as wireless wifi access point?  -aspo
        \_ Yes. My coworker does this with his Blackberry.
	...