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Cake day: June 22nd, 2023

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  • Yeah Linus uses Fedora because:

    • Stable release schedule - he knows when he’ll have to do major upgrades
    • Stable software - he knows stuff he isn’t messing with just works
    • Don’t modify their kernel much - this rules out Ubuntu which is the Debian based distro with a stable release schedule

    I know KDE devs rate opensuse highly for similar reasons, if you primarily develop 1 app/framework/kernel you don’t want the fun of irregular updates that haven’t been properly tested (or have been tested and need manual intervention anyway) especially if those updates could potentially break your thing.










  • I’m not sure how useful this is, but it helped me understand.

    The subnet mast is the count of the bits from the front that matter.

    This is useful for switches and network equipment that only have to look at that much if the packet and route it quickly.

    So a 10.0.0.0/8 address the switch only looks at the first 8 binary digits (also called an octet) and routes it based on that.

    This also works for non multiple of 8 masks, as it’s an operation done on a binary level (it’s a mask using a binary AND so only bits that are true and.the mask can be matter)

    10.192.0.0/10

    IP: 00001010.11000000.00000000.00000000

    Mask: 11111111.11 000000.00000000.00000000

    So 10.192.0.1 and 10.192.255.255 look the same with their mask on

    1: 00001010.11 000000.00000000.00000001

    255: 00001010.11 111111.11111111.11111111

    Mask: 11111111.11 000000.00000000.00000000

    Result for both is: 00001010.11 000000.00000000.00000000