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Showing posts with the label networking

Using XP Safely?

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One of the things I like to do is port software from one system to another. That is take the source code of a program and allow it to work on another system. Why reinvent the wheel if yo u have something that works. Just because you have a new and different system should keep from using that software. Coming from a school that says within reason if it is not broke, do not fix it then you know what to do. If I have a perfectly working system why convert it to a virtual machine and not know what the challenges might be. If I did not have an existing system, then off to the races to build a virtual machine. What is this all leading up to. With the terminated support of Microsoft Windows XP.  XP per se is no longer viable. Mainly because of security issues. Everyone says upgrade or chunk the system. Invested too much in the system to lightly just chunk it and like most upgrades old software just no longer works after the upgrade.  So using a virtual machine does not always wo...
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The more things change, the more they stay the same.

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Temporary alternative to wireless networking.

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There are times when you just need a quick connection at home or in a small office and setting up wireless can be a real hassle not to mention potential security issues. Instead you might consider ethernet over power aka eop. Advantages are that it is all plug and play, you can even use use house wiring as your medium. You will need at least two modules (on for each side of the connection,) i have seen a set of modules for under thirty dollars. That is not much more than the price of a good Nic. Give it a try.
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Temporary alternative to wireless networking.

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There are times when you just need a quick connection at home or in a small office and setting up wireless can be a real hassle not to mention potential security issues. Instead you might consider ethernet over power aka eop. Advantages are that it is all plug and play, you can even use use house wiring as your medium. You will need at least two modules (on for each side of the connection,) i have seen a set of modules for under thirty dollars. That is not much more than the price of a good Nic. Give it a try.
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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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New wifi networking

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There is a new way of wifi networking that will allow you to have wireless nodes as a network backbone to replace a repeater network.The mesh networking has become popular in Austin, Texas and is spreading like wildfire. Another way people can become their own isp.  For example ,say you have several houses or homes that you want to connect. You will not have to run any cabling between the units. All you need is a router that can run the Hsmm-mesh (tm) firmware. The network is a variation on ham packet radio. The original intention was to have a free network where anyone can become a node. You can do a little specialization if you want it to be at least a little bit private via the ssid. Several homes or locations do not have to be next to each other, but the participating units have to have standard routers that have the hsmm-mesh software installed.  You can tie the routers together, by using traditional repeaters, but if the main router goes down, so does the network. ...
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