psanford

# Here's the script I'll use to demonstrate - it just loops forever:

$ cat test.rb 
#!/usr/bin/env ruby

loop do
  sleep 1
end

# Now, I'll start the script in the background, and redirect stdout and stderr

psanford

Section "InputClass"
	Identifier	"Keyboard Defaults"
	MatchIsKeyboard	"yes"
	Option		"XkbOptions" "caps:super,terminate:ctrl_alt_bksp"
EndSection


Section "InputClass"
	Identifier	"Apple Keyboards"
	MatchUSBID	"05ac:0259"

psanford

[NOTICE: Zone booting up]
init: Unable to mount /sys filesystem: Function not implemented
<4>init: procps (virtual-filesystems) main process (19850) terminated with status 139
<4>init: Temporary process spawn error: Interrupted system call
<4>init: Temporary process spawn error: Interrupted system call
<4>init: Temporary process spawn error: Interrupted system call
<4>init: failsafe post-start process (19917) killed by SEGV signal
<4>init: upstart-socket-bridge main process ended, respawning
<4>init: Temporary process spawn error: Interrupted system call
<4>init: networking main process (19891) terminated with status 2

psanford

Date	Instances
[August 2006][0]	m1.small
[October 2007][1]	m1.large, m1.xlarge
[May 2008][2]	c1.medium, c1.xlarge
[October 2009][3]	m2.2xlarge, m2.4xlarge
[February 2010][4]	m2.xlarge
[July 2010][5]	cc1.4xlarge
[September 2010][6]	t1.micro
[November 2010][7]	cg1.4xlarge

psanford

# send binary as hex over telnet
cat file | od -A n -v -t x1 | tr -d ' \n' | telnet x.x.x.x 1337

# convert from hex to binary over netcat
nc -l 1337 |  xxd -r -p > /tmp/binary

psanford

# speak the signal strength out loud 
script -c "azap -c ~/.mplayer/channels.conf -r 'KNTV HD'" /dev/null | perl -nl -e '$|=1; /signal ([a-zA-Z0-9]+).*FE_HAS_LOCK/; `echo $1 | festival --tts`; '

#yes or no
script -c "azap -c ~/.mplayer/channels.conf -r 'KNTV HD'" /dev/null | tee /tmp/azap | perl -nl -e '$|=1; /signal ([a-zA-Z0-9]+).*FE_HAS_LOCK/; $out=$1 eq "541d" ? "no": "yes" ; `echo $out | festival --tts` ; '


# edit /usr/share/festival/voices/english/kal_diphone/festvox/kal_diphone.scm to adjust speech rate
(Parameter.set 'Duration_Stretch 0.5) 

psanford

#!/bin/bash
#
# usdt - trace user statically defined tracepoints. User-level dynamic tracing.
#        Written using Linux ftrace. Experimental.
#
# WARNING: This is a proof of concept for USDT tracing from Linux ftrace, and
# is not safe to use in production environments. In particular, the -i option
# sets memory semaphores by piping the output of printf through dd and then
# to process memory via /proc/PID/mem. Yes, this program pipes the output of
# the shell directly over top of live process memory. If you don't understand

psanford

These are my notes for connecting to a meraki client vpn from ubuntu 16.04. This configuration assumes you are using a psk for the ipsec auth.

Install the following packages:

apt-get install -y strongswan xl2tpd

Configure strong swan

psanford

[
["f", "Show next/latest diffs", "setProposedRevRanges()"],

["j", "Next unreviewed file", "nextUnreviewedFile()"],
["k", "Previous unreviewed file", "prevUnreviewedFile()"],
[null, "Next personally unreviewed file", "nextPersonallyUnreviewedFile()"],
[null, "Previous personally unreviewed file", "prevPersonallyUnreviewedFile()"],
["shift+n", "Next changed file", "nextChangedFile()"],
["shift+p", "Previous changed file", "prevChangedFile()"],
["shift+j", "Next visible file", "nextVisibleFile()"],

psanford

#!/bin/bash

# Hello world of rootless runc with an overlayfs root file system.
# This will only work as is with kernels that allow overlayfs mounts
# from non-root accounts (such as ubuntu 18.04).

set -e
set -x

mkdir /tmp/runc-rootless