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Showing posts with the label hacking

Port of call.

One thing that is good for an network administrator is to be able to see if a web server is up without having to load a browser. Of course the web browsers usually run on port 80. Here is a short script to do that. Grab a root webpage and save the code. Great for seeing if a server is up. Usage:  ./webpageget.sh site outputfile ./getwebpage.sh oesrvr1 oesrvr1_rootpage rm: cannot remove `oesrvr1_rootpage’: No such file or directory <html> <head> <title> Offshore Educators (Main Page) 1 </title> <base href=” http://oesrvr1/oe/”&gt ; </head> <FRAMESET ROWS=”15%,*”> <FRAME SRC=”title.html” NAME=TITLE SCROLLING=NO> <FRAMESET COLS=”20%,*” FRAMEBORDER=no> <FRAME SRC=”tools.html” NAME=SIDEBAR noresize> <FRAME SRC=”notes.html” NAME=NOTES noresize> </FRAMESET> <NOFRAMES> <H1> Offshore Educators</H1> No frames? No Problem! Take a look at our <A HREF=”plain.html”>no-frames...
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Soldering iron: a tech's best friend.

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A soldering iron can be a tech's best friend. You never know when you need to repair an electrical connection. You can actually do a whole lot more, You can rescue parts for reuse. You can build your own simple test equipment. You can even build your own projects. You do not have to get a fancy soldering iron at first, but later as you gain experience, You may certainly want one. You also will want to learn about electronic symbols so that you can understand at least simple schematics. One of the first pieces of test  equipment I ever made was a continuity tester. What is that? it is a tool to see whether a wire cam make a complete circuit.  There are no breaks in the wire. Most of what I do is low voltage, so parts are not that critical. To make the continuity tester, I rescued a battery holder (from the motherboard) and an led from a dead computer. Saved a few bucks right there. So a soldering iron can get you free parts! The continuity tester is just...
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Change your password.

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Years ago before the internet, all communication was done over phone lines. You had to have a device that would allow your computing equipment to talk to each other such as a modem. Say a finance company employee would dial up the credit bureau computer, wait for a modem tone and then place the headset into what was known as an acoustic coupler (early version of a dumb modem aka modulator/demodulator unit).  Once connected the employee could type characters on a teletype device that was connected to the phone line for a name and password. Then to eventually get information about potential customers (i.e pull a credit bureau). The teletype machine had many fancy looking character keys on the keyboard. So that typing in the user name and password would seem very complicated. Computers only deal with ones and zeros. So the teletype machine had to translate when a key was pressed into a number that could be sent over the modem. At the time there was sort of a standard known as ASCII ...
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Jailbreaking a device is not a crime

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We bring you this commercial interruption for an important announcement. See: www.eff.org Jailbreaking a device is not a crime. Show your support now. https://www.jailbreakingisnotacrime.org/
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Linux tricks and tips.

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Just a few of my instructables about linux that might interest you in one way or another. http://www.instructables.com/id/Linux-themed-instructables/
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