Airdawg5571

#!/bin/bash

# Written and tested on CentOS 7
iptables -nvL |cut -f -9|column -t| sed 's/^Chain/\n&/g'|sed '/^Chain/ s/[ \t]\{1,\}/ /g'|sed '/^[0-9]/ s/[ \t]\{1,\}/ /10g'

mariochavez

Usando Docker con Rails para hacer deploy a Producción

Instalar Docker

Hay que seguir las notas en https://docs.docker.com/installation/ para el sistema operativo que esten ejecutando.

Utilizando un contenedor para Postgresql

Vamos a utilizar un container ya listo para trabajar con Postgresql. El siguiente comando se encarga de descargar el container y de ejecutarlo. Si es necesario cambiar el valor de las variables POSTGRES_PASSWORD y POSTGRES_USER a unos más adecuados

$ docker run --name db -e POSTGRES_PASSWORD=manager -e POSTGRES_USER=rails -d postgres

nicolasembleton

#!/bin/bash

sudo kextunload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
sudo kextload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport

Lerg

#!/bin/sh
base=$1
convert "$base" -resize '29x29'     -unsharp 1x4 "Icon-Small.png"
convert "$base" -resize '40x40'     -unsharp 1x4 "Icon-Small-40.png"
convert "$base" -resize '50x50'     -unsharp 1x4 "Icon-Small-50.png"
convert "$base" -resize '57x57'     -unsharp 1x4 "Icon.png"
convert "$base" -resize '58x58'     -unsharp 1x4 "Icon-Small@2x.png"
convert "$base" -resize '60x60'     -unsharp 1x4 "Icon-60.png"
convert "$base" -resize '72x72'     -unsharp 1x4 "Icon-72.png"
convert "$base" -resize '76x76'     -unsharp 1x4 "Icon-76.png"

masbog

curl -O http://downloads.ghostscript.com/public/ghostscript-9.14.tar.gz &&
tar -xzf  ghostscript-9.14.tar.gz &&
cd ghostscript-9.14 &&
./configure &&
make install &&
make so &&
cp ghostscript-9.14/sobin/libgs.so.9.14 /usr/lib &&
ln -s /usr/lib/libgs.so.9.14 /usr/lib/libgs.so &&
mkdir -p /etc/ld.so.conf.d/ &&
echo "/usr/lib/libgs.so" > /etc/ld.so.conf.d/libgs.conf &&

mezis

SELECT id,state,command,time,left(replace(info,'\n','<lf>'),120)
FROM information_schema.processlist
WHERE command <> 'Sleep' 
AND info NOT LIKE '%PROCESSLIST%'
ORDER BY time DESC LIMIT 50;

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

ashrithr

require 'openssl'

#
# Program to demonstrate Certificate Signing Request using openssl
#

# Create a new key
def gen_key(name)
  key = OpenSSL::PKey::RSA.new 1024
  file = File.new name, "w"

marianposaceanu

Linux simple performance tweaks

Change the I/O Scheduler

Open $ vim /etc/default/grub then add elevator=noop next to GRUB_CMDLINE_LINUX_DEFAULT. Run $ update-grub and $ cat /sys/block/sda/queue/scheduler to be sure that noop is being used:

$ vim /etc/default/grub
$ update-grub
$ cat /sys/block/sda/queue/scheduler

[noop] deadline cfq

SammysHP

                    .                    
    ##############..... ##############   
    ##############......##############   
      ##########..........##########     
      ##########........##########       
      ##########.......##########        
      ##########.....##########..        
      ##########....##########.....      
    ..##########..##########.........    
  ....##########.#########.............