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List of IAM Permissions

This is a list of controls that can be placed into an IAM policy document. All content comes from AWS documentation.

Something wrong? Try looking here.

Table of Contents generated with DocToc

• List of IAM Permissions
  • IAM Policy Variables

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##TCP FLAGS##

Unskilled Attackers Pester Real Security Folks
==============================================
                     TCPDUMP FLAGS
Unskilled =  URG  =  (Not Displayed in Flag Field, Displayed elsewhere) 
Attackers =  ACK  =  (Not Displayed in Flag Field, Displayed elsewhere)
Pester    =  PSH  =  [P] (Push Data)
Real      =  RST  =  [R] (Reset Connection)
Security  =  SYN  =  [S] (Start Connection)

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mdadm

Glossary:

• md: multiple devices

command	description
cat /proc/mdstat	show status of all raids
mdadm --detail /dev/md0	detailed status of raid md0

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sqlite3 /etc/pihole/gravity.db -header -csv 'select * from adlist' > adlist.csv

sqlite3 /etc/pihole/gravity.db -header -csv 'select * from vw_whitelist' > whitelist.csv
sqlite3 /etc/pihole/gravity.db -header -csv 'select * from vw_blacklist' > blacklist.csv

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Routing tips for VPNs on OS X

When VPNs Just Work™, they're a fantastic way of allowing access to a private network from remote locations. When they don't work it can be an experience in frustration. I've had situations where I can connect to a VPN from my Mac, but various networking situations cause routing conflicts. Here are a couple of cases and how I've been able to get around them.

Specific cases

Case 1: conflicting additional routes.

In this example the VPN we are connecting to has a subnet that does not conflict with our local IP, but has additional routes that conflict in some way with our local network's routing. In my example the remote subnet is 10.0.x.0/24, my local subnet is 10.0.y.0/24, and the conflicting route is 10.0.0.0/8. Without the later route, I can't access all hosts on the VPN without manually adding the route after connecting to the VPN:

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##StevenBlack's list
https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts

##MalwareDomains
https://mirror1.malwaredomains.com/files/justdomains

##Cameleon
http://sysctl.org/cameleon/hosts

##Zeustracker

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Getting the Gist of GitHub Actions

Tutorial and tips for GitHub Actions workflows

Table of Contents

• Introduction
• Workflows and actions

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Terminal Colors

There exists common confusion about terminal colors. This is what we have right now:

• Plain ASCII
• ANSI escape codes: 16 color codes with bold/italic and background
• 256 color palette: 216 colors + 16 ANSI + 24 gray (colors are 24-bit)
• 24-bit true color: "888" colors (aka 16 milion)

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Decoding the data in /proc/net/tcp:

Linux 5.x  /proc/net/tcp
Linux 6.x  /proc/PID/net/tcp

Given a socket:

$ ls -l  /proc/24784/fd/11
lrwx------ 1 jkstill dba 64 Dec  4 16:22 /proc/24784/fd/11 -> socket:[15907701]