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Wednesday·24·November·2010

Useful but Unknown Unix Tools: netselect //at 00:05 //by abe

from the tune-your-sources.list dept.

Ever wondered which mirror of your favourite Linux distribution is the fastest at your location?

Check it with netselect (code at GitHub). It checks for the number of hops and ping times to given hosts and tells you which one is the fastest of them:

# netselect -vv ftp.de.debian.org ftp2.de.debian.org \
                ftp.ch.debian.org ftp.nl.debian.org ftp.debian.org
Running netselect to choose 1 out of 5 addresses.
.......................................................
ftp.de.debian.org                       25 ms  16 hops   90% ok ( 9/10) [   72]
ftp2.de.debian.org                      17 ms  17 hops   90% ok ( 9/10) [   51]
ftp.ch.debian.org                        0 ms   3 hops   90% ok ( 9/10) [    0]
ftp.nl.debian.org                       22 ms  15 hops   90% ok ( 9/10) [   62]
ftp.debian.org                          22 ms  15 hops   90% ok ( 9/10) [   60]
    0 ftp.ch.debian.org

And if you’re too lazy to optimize your sources.list with netselect manually, just use the netselect-apt package. It will do it for you.

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Debian GNU/Linux is my favourite Linux distribution, being stable, flexible, consistent and having a great community. Although I'm not the biggest bug report writer, I try to contribute by staffing the Debian booth at events, carrying the necessary hardware there or even organising the whole booth.


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