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-module(first).
-export([double/1, mult/2, area/3, treble/1, square/1]).

mult (X,Y) -> 
    X*Y.

double(X) -> 
    mult(2,X).

area(A,B,C) -> 

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Ansible playbook to setup HTTPS using Let's encrypt on nginx.

The Ansible playbook installs everything needed to serve static files from a nginx server over HTTPS.
The server pass A rating on [SSL Labs](https://www.ssllabs.com/).

To use:
 1. Install [Ansible](https://www.ansible.com/)
 2. Setup an Ubuntu 16.04 server accessible over ssh
 3. Create `/etc/ansible/hosts` according to template below and change example.com to your domain
 4. Copy the rest of the files to an empty directory (`playbook.yml` in the root of that folder and the rest in the `templates` subfolder)

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The Imposter's Handbook

This a collection of interesting links found in The Imposter's Handbook by Rob Conery.

Content:

• Introduction
• A Little History
• The Tools
• Customizing The Terminal

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—– BEGIN LICENSE —–
Die Socialisten GmbH
10 User License
EA7E-800613
51311422 E45F49ED 3F0ADE0C E5B8A508
2F4D9B65 64E1E244 EDA11F0E F9D06110
B7B2E826 E6FDAA72 2C653693 5D80582F
09DCFFB5 113A940C 5045C0CD 5F8332F8
34356CC6 D96F6FDB 4DEC20EA 0A24D83A
2C82C329 E3290B29 A16109A7 EC198EB9

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Login	Password
root	xmhdipc
root	klv123
root	xc3511
root	123456
root	jvbzd
default	OxhlwSG8
defaul	tlJwpbo6
defaul	S2fGqNFs
root hi3518

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Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

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install latest crmpoint fw per:
https://community.ui.com/questions/Installing-airControl-on-CRM-Point/a4f1fdcd-114a-4c06-a842-e56eff486570

# login via ssh
# change root/ubnt password
passwd

# fix jessie backports repo

echo "deb http://archive.debian.org/debian jessie-backports main" >> /etc/apt/sources.list

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UniFi Tunnelbroker Configuration

This GitHub Gist details the manual configuration needed on a UniFi controller to enable IPv6 tunneling with Hurricane Electric's Tunnelbroker service.

Setup

This is what works for me personally. Stuff you'll need to do to adapt this to your ends:

• Replace "local-ip" with your USG's public IPv4 address.
• Replace "remote-ip" with the address of your Tunnelbroker tunnel server.
• Replace "address" with the IPv6 address that your are allocated.

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import asyncio
import random
import time


async def worker(name, queue):
    while True:
        # Get a "work item" out of the queue.
        sleep_for = await queue.get()

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Download the latest ugw3 package from https://github.com/Lochnair/vyatta-wireguard/releases and install it on your USG using dpkg -i wireguard-ugw3-<version>.deb.

cd /config/auth
umask 077
mkdir wireguard
cd wireguard
wg genkey > wg_private.key
wg pubkey < wg_private.key > wg_public.key