bwbaugh

Guide to set up a new VPS

This guide was written while setting up an Unbuntu VPS. There may be some differences when setting up a different distro.

Initial steps as root

Do some basic setup as the root user, which should mainly consist of

queertypes

> data Thing = Thing {a :: Int, b :: Int, c :: Int} deriving Show
> :t
Thing :: Int -> Int -> Int -> Thing
> Thing {a = 10}

<interactive>:13:1: Warning:
    Fields of ‘Thing’ not initialised: b, c
    In the expression: Thing {a = 10}
    In an equation for ‘it’: it = Thing {a = 10}

rsim

Get the current Unix timestamp (seconds from 1970-01-01T00:00:00Z) in SQL.

• MySQL: UNIX_TIMESTAMP()
• PostgreSQL: CAST(EXTRACT(epoch FROM NOW()) AS INT)
• MS SQL: DATEDIFF(s, '1970-01-01', GETUTCDATE())
• Oracle: (CAST(SYS_EXTRACT_UTC(SYSTIMESTAMP) AS DATE) - DATE'1970-01-01') * 86400

526avijitgupta

emacs --daemon to run in the background. emacsclient.emacs24 <filename/dirname> to open in terminal

NOTE: "M-m and SPC can be used interchangeably".

• Undo - C-/
• Redo - C-?
• Change case: 1. Camel Case : M-c 2. Upper Case : M-u

3. Lower Case : M-l

bwbaugh

Installing logstash

Server install

Install

Install the Java prerequisite:

divyavanmahajan

#!/bin/bash -e
# List users in the system
echo "Users setup in the system."
ls /etc/openvpn/easy-rsa/keys/*ovpn|xargs -n 1 -I FNAME basename FNAME .ovpn|grep -v proxy|xargs -n 1 -I NAME echo "    NAME"

echo ------
echo Active users
echo ------
cat /var/log/openvpn/server.log

dbiesecke

#!ipxe

# To access this file via http use following redirection:
# http://preseed.panticz.de/ipxe/menu.netinstall.ipxe

# choose cpu architecture
cpuid --ext 29 && set arch amd64 || set arch i386

menu NetInstall
item --gap NetInstall Ubuntu Preseed (user: ubuntu, password: t00r):

nzw0301

Installing Emacs 24.4 on Ubuntu 14.04 without sudo privilege

Just run:

sh ./ubuntu14.04-emacs-24.4-install.sh

This will install ncurses which is dependency of emacs24.4. It may requires another dependencies depending on your environment. Note that configure options in emacs installation are for disabling GUI features.

ewenchou

1. Create a service file like dash_sniffer.service
2. Put it in /lib/systemd/system/
3. Reload systemd using command: systemctl daemon-reload
4. Enable auto start using command: systemctl enable dash_sniffer.service

tung

#!/usr/bin/env python3

#
# A script to download chat from a Twitch VOD and print it to a terminal.
# Chat will be downloaded all the way until it ends.
#
# Usage: TWITCH_CLIENT_ID=0123456789abcdef0123456789abcde twitch-vod-chat.py [video_id] [start]
#
# This script could break at any time, because Twitch's chat API is
# undocumented and likes to change at any time; in fact, this script was