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Bruce Sterling

Literary Freeware:  Not for Commercial Use

F&SF Science Column #15:  "Bitter Resistance"


	Two hundred thousand bacteria could easily lurk under the top half 
of this semicolon; but for the sake of focussing on a subject that's too 
often  out of sight and out of mind, let's pretend otherwise.  Let's pretend 

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#!/bin/bash

# Funcție pentru a afișa utilizarea și a ieși
show_help() {
    echo "Utilizare: $0 [-i <interfață>] [-t <secunde>]"
    echo "  -i <interfață>  : Specifică interfața de rețea de monitorizat (ex: eth0, enp0s3)."
    echo "                    Dacă nu este specificată, se va detecta interfața implicită."
    echo "  -t <secunde>    : Intervalul de timp în secunde pentru calculul mediei și refresh (implicit: 1)."
    echo "                    Va afișa media ultimelor <secunde> și se va actualiza la fiecare <secunde>."
    echo ""

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these are scratch notes, not a working solution.
but please report success if you understand the core idea and it works for you.
the idea I'm thinking is to apfs mount two volumes, we need apfs xattrs, that's why symlinks don't work.

% cd Library/CloudStorage
one volume should be mounted at CloudStorage because it has no xattrs. 
not cloud provider name, as it needs xattrs which are apfs specific.
so you have all clouds in one place, cannot have selectivity. except iCloud which goes into it's own separate world.

% xattr OneDrive-Personal

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Unable to negotiate with 192.168.1.1 port 22: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,kexguess2@matt.ucc.asn.au
Unable to negotiate with 192.168.1.1 port 22: no matching host key type found. Their offer: ssh-rsa

ssh -o KexAlgorithms=diffie-hellman-group1-sha1 -o HostKeyAlgorithms=+ssh-rsa -o PubkeyAcceptedAlgorithms=+ssh-rsa user@host

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https://archive.ph/cBcTD
https://web.archive.org/web/20240531085449/https://github.com/raivo-otp/ios-application/issues/328
https://web.archive.org/web/20240209114245/https://github.com/raivo-otp/marketing-website/issues/19
https://archive.ph/fGnO3#selection-8895.0-8895.99

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https://bombich.com/kb/ccc6/some-files-and-folders-are-automatically-excluded-from-backup-task

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Knowledge Base (ccc6)Some files and folders are automatically excluded from a backup task

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https://matt.sh/apfs-object-map-free-recovery

APFS Object Map Recovery (free)
APFS Object Map Recovery
I spent a day figuring out how to look into a corrupt encrypted APFS partition. Here’s the notes.

If you only care about the answer, jump to the last section.

Kernel Panic
macOS hard panicked on me with a graphics driver corruption error com.apple.iokit.IOAcceleratorFamily2 (which happened after seven “gpuRestart” logs were generated back-to-back).

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#!/bin/bash
# thanks microsoft copilot. worked from first try. prompt:
# can you write a small script in a language of your choice that takes input as defined by the name of the input file, searches for patterns that resemble an ethernet mac address including those that omit the zero, such as like when netstat on macos does, then replace the last three octets of the mac address with xx:xx:xx
# it wrote python but python requires xcode so I asked for a rewrite in bash

filename="$1"

# MAC address pattern (with optional leading zeros)
pattern="([0-9A-Fa-f]{1,2}[:-]){5}([0-9A-Fa-f]{1,2})"

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copied from https://git.scc.kit.edu/-/snippets/563, found on search for "device mapper volatile writeable readonly"

#!/bin/bash

set -e

# test if $1 exists
test -f "$1"

BASEDIR=$(dirname "$1")

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  27332 pts/0    S+     0:00  |           \_ sudo -E dnf --enablerepo=ol8_UEKR6 install kernel-uek-5.4.17-2136.320.7.1.el8uek.x86_64 kernel-uek-devel-5.4.17-2136.320.7.1.el8uek.x86_64
  27334 pts/0    S+     1:40  |               \_ /usr/libexec/platform-python /bin/dnf --enablerepo=ol8_UEKR6 install kernel-uek-5.4.17-2136.320.7.1.el8uek.x86_64 kernel-uek-devel-5.4.17-2136.320.7.1.el8uek.x86_64
  48159 pts/0    S+     0:00  |                   \_ /bin/sh /var/tmp/rpm-tmp.UD5iFV 2
  56855 pts/0    S+     0:00  |                       \_ /bin/bash /bin/kernel-install add 5.4.17-2136.320.7.1.el8uek.x86_64 /lib/modules/5.4.17-2136.320.7.1.el8uek.x86_64/vmlinuz
  56897 pts/0    S+     0:00  |                           \_ /bin/sh /usr/lib/kernel/install.d/40-dkms.install add 5.4.17-2136.320.7.1.el8uek.x86_64 /boot/b26894ddea4a49caaac4c71d4e27f057/5.4.17-2136.320.7.1.el8uek.x86_64 /lib/modules/5.4.17-2136.320.7.1.el8uek.x86_64/vmlinuz
  56898 pts/0    S+     0:00  |                               \_ /bin/sh /usr/lib/