By Zachary Thomas (zthomas.nc@gmail.com, Twitter, LinkedIn)
**Tip: **See the Table of Contents (document outline) by hovering over the vertical line on the right side of the page
The first 70% of SQL is pretty straightforward but the remaining 30% can be pretty tricky.
A lot of times you are developing a web application on your own laptop or home computer and would like to demo it to the public. Most of those times you are behind a router/firewall and you don't have a public IP address. Instead of configuring routers (often not possible), this solution gives you a public URL that's reverse tunnelled via ssh to your laptop.
Because of the relaxation of the sshd setup, it's best used on a dedicated virtual machine just for this (an Amazon micro instance for example).
Currently, there is an explosion of tools that aim to manage secrets for automated, cloud native infrastructure management. Daniel Somerfield did some work classifying the various approaches, but (as far as I know) no one has made a recent effort to summarize the various tools.
This is an attempt to give a quick overview of what can be found out there. The list is alphabetical. There will be tools that are missing, and some of the facts might be wrong--I welcome your corrections. For the purpose, I can be reached via @maxvt on Twitter, or just leave me a comment here.
There is a companion feature matrix of various tools. Comments are welcome in the same manner.
As configured in my dotfiles.
start new:
tmux
start new with session name:
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns
Compress 1K bytes with Zippy ............. 3,000 ns = 3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns = 20 µs
SSD random read ........................ 150,000 ns = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs
docker-machine create --driver virtualbox default (this is the default with Docker toolkit).The git.io URL (http://git.io/vsk46) is a shortened form of the raw url of the plist.
| #!/usr/bin/env python2 | |
| # Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org) | |
| # The author disclaims copyright to this source code. | |
| import sys | |
| import struct | |
| import socket | |
| import time | |
| import select |
| 1) see re: increasing shmmax http://stackoverflow.com/a/10629164/1283020 | |
| 2) add to postgresql.conf: | |
| shared_preload_libraries = 'pg_stat_statements' # (change requires restart) | |
| 136 pg_stat_statements.max = 1000 | |
| 137 pg_stat_statements.track = all | |
| 3) restart postgres | |
| 4) check it out in psql |
| cd ~ | |
| sudo apt-get install unzip | |
| sudo apt-get install python-software-properties -y | |
| sudo add-apt-repository ppa:ferramroberto/java | |
| sudo apt-get update | |
| sudo apt-get install sun-java6-jre sun-java6-plugin -y | |
| wget https://github.com/downloads/elasticsearch/elasticsearch/elasticsearch-0.19.0.tar.gz -O elasticsearch.tar.gz | |
| tar -xf elasticsearch.tar.gz | |
| rm elasticsearch.tar.gz |
| $ curl -kLO https://github.com/utahta/pythonbrew/raw/master/pythonbrew-install | |
| $ chmod +x pythonbrew-install | |
| $ ./pythonbrew-install | |
| $ echo "source ~/.pythonbrew/etc/bashrc" >> .bashrc | |
| $ source .bashrc | |
| $ pythonbrew install -f 2.6.6 # なぜかtest_ioctlでこけたためforce | |
| $ pythonbrew install -f 3.1.3 # 同上 | |
| $ pythonbrew switch 2.6.6 |