iPaq Intro,Python,and Connectivity.pptVIP

iPaq Intro, Python, and Connectivity Feb 13, 2006 Larry Rudolph Administration iPaq’s and Mobile Phones very similar both use python, bluetooth, internet This week: Ipaq comments, Python, Network Problem set, due in one week On your own, watch: Jamey Hicks on “Linux on iPaq” (video) Setting up iPaq Why Linux? Why not Linux on newer models? Things particular to these iPaqs batteries no solid connections (check cables often) when in doubt, reinstall Connecting to iPaq Serial cable (not usb) after boot, can just login via some terminal program (minicom/hyperterm) ssh over the network setup wireless connection to network ‘ssh -l root xxx.xxx.xx.xxx’ need ip address (do not need dns name) make sure you are connecting to YOUR ipaq. Easy to mistype ip address. Installing software /etc/ipkg.conf points to “feeds” we will maintain our own feed ipkg picks first matching file, not last while searching list of feeds Copy files to ipaq via secure copy “scp localFile.py root@ipaqip:/usr/bin/” serial cable xmodem/ymodem, sx on linux Is your ipaq, your ipaq? Anonymous vs Personal handheld Telephone example Landline telephones are anonymous Cell/Mobile phones are personal Tradeoffs private state can be lost or stolen; should be protected setup overhead on user daily underhead on user: setup once forget less dependent on connectivity public/private keys easy to use once setup Connectivity Ipaq: 802.11 (WiFi) or Bluetooth Mobile: GPRS (edge) or Bluetooth Go to Python Tutorial Slides Let’s go through the slides from the Zope corporation on an introduction to Python by the inventor of python, Guido van Rossum Server Code Client Code Online Tutorials Tutorials /doc/tut/tut.html / /newly_researched_free_training/Python.html use google or go to Discussion about network infrastructure Initialization Network Static IP, DNS server -- why IPv6 and why not DHCP: get ip and dns server -- vast improvement Servers Feed, chat, device, anything new too many servers must always be up What wil