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### section 1

# disable CPU mitigations, disable CPU sleep (C states), disable CPU throttling (frequency scaling)

# edit /boot/grub/grub.cfg
# mitigations=off intel_idle.max_cstate=0 processor.max_cstate=1

echo performance > /sys/devices/system/cpu/cpufreq/policy0/scaling_governor
echo performance > /sys/devices/system/cpu/cpufreq/policy1/scaling_governor

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dsterling@thinkfly:~/Arduino/hardware/keyboardio/avr/libraries/Kaleidoscope/src/kaleidoscope/plugin$ git diff
diff --git a/src/kaleidoscope/plugin/LED-Wavepool.cpp b/src/kaleidoscope/plugin/LED-Wavepool.cpp
index 1c24fe49..b649e3a5 100644
--- a/src/kaleidoscope/plugin/LED-Wavepool.cpp
+++ b/src/kaleidoscope/plugin/LED-Wavepool.cpp
@@ -179,10 +179,10 @@ void WavepoolEffect::TransientLEDMode::update(void) {
         int8_t *p;
         for (p = offsets, value = 0; p < offsets + 8; p++)
           value += oldpg[offset + (*p)];
-        value = (value >> 2) - newpg[offset];

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# /etc/iptables.rules

# Generated by iptables-save v1.6.1 on Sat Oct 19 09:21:09 2019
*mangle
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:MINIUPNPD - [0:0]

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How to run "ls" in docker

---

Run "ls" in docker, handling various possible environmental issues that the shell normally directly handles.

That is, the below docker command is similar to simply issuing "ls" at a shell prompt, or adding an "ls" command to a shell script.

Without docker:

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slightly-less-insecure-docker
wrapper around docker that perhaps makes it slightly less insecure

example usage:

DOCKER=/path/to/docker-wrapper
sudo $DOCKER run -it -v /etc/passwd:/etc/passwd -v /tmp:/tmp ubuntu


NOTE:

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use strict;
use warnings;
my @n;
while (<>) {
  push @n, $_;
}

my $first_num = 0;
my $next_num = 0;
my $contig = 0;

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# remove IP / set IP to one that won't be used for other systems

# clear ssh host key
rm -rf /etc/ssh/ssh_host_*

# remove /etc/hosts entries as applicable

# remove utmp data - wtmp and btmp and lastlog
rm /var/log/{w,b}tmp /var/log/lastlog ; 
  touch /var/log/{w,b}tmp /var/log/lastlog ; 

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#!/usr/bin/env perl
use strict;
use warnings;

# apt-get install apache2-utils libyaml-syck-perl libtimedate-perl
use YAML::Syck;
use IO::File;
use Date::Parse;
use Time::Piece;

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#!/usr/bin/perl
use strict;
use warnings;

use Net::CLI::Interact;
use Parallel::ForkManager;

# servers
my @doit = qw( server1 server2 server3 );

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