maciakl

# trying to install PPA behind firewall fails:
$ sudo add-apt-repository ppa:chris-lea/node.js
  gpg: requesting key C7917B12 from hkp server keyserver.ubuntu.com
  gpgkeys: HTTP fetch error 7: couldn't connect to host
  gpg: no valid OpenPGP data found.
  gpg: Total number processed: 0
  recv failed

# this is how you get around it (use the key from the command above)
$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys C7917B12

earthgecko

#!/bin/bash
# bash generate random alphanumeric string
#

# bash generate random 32 character alphanumeric string (upper and lowercase) and 
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1

jexchan

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"