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-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

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Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

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DOMAIN ?= mydomain.com

COUNTRY := IT
STATE := IT
COMPANY := Evil Corp.

# credits to: https://gist.github.com/fntlnz/cf14feb5a46b2eda428e000157447309

# usage:

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# -*- coding: utf-8 -*-

'''
Escreva a sua solução aqui
Code your solution here
Escriba su solución aquí
'''


import sys

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def get_matrix_elem(m, x, y):
  return m[(12 * y) + x]

def fill_matrix():
  m = []
  for i in range(0,144):
    m.append(float(input()))
  return m

def get_lower_triangle_elem(m):

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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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#!/bin/bash

# A script to set up a new mac. Uses bash, homebrew, etc.

# Focused for ruby/rails development. Includes many utilities and apps:
# - homebrew, rvm, node
# - quicklook plugins, terminal fonts
# - browsers: chrome, firefox
# - dev: iterm2, sublime text, postgres, chrome devtools, etc.
# - team: slack, dropbox, google drive, skype, etc

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#!/bin/bash
#
# Set up OSX preferences
#
# Inspired by: https://github.com/mathiasbynens/dotfiles/blob/master/.osx
###########################################
# CONFIG

HOSTNAME="machiavellia"
TIMEZONE="America/Chicago" # 'systemsetup -listtimezones'

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Homebrew

How To

Homebrew is a package management system for OS X. You can read more about it here, or simply run

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

to install it.