Starting Vim
vim [file1] [file2] ...
# to generate your dhparam.pem file, run in the terminal | |
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048 |
from collections import defaultdict | |
import boto3 | |
""" | |
A tool for retrieving basic information from the running EC2 instances. | |
""" | |
# Connect to EC2 | |
ec2 = boto3.resource('ec2') |
Here are several different ways to test a TCP port without telnet.
$ cat < /dev/tcp/127.0.0.1/22
SSH-2.0-OpenSSH_5.3
^C
$ cat < /dev/tcp/127.0.0.1/23
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the \
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)A curated list of AWS resources to prepare for the AWS Certifications
A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.
#!/bin/sh | |
# AUTHOR | |
# DANIEL E. GILLESPIE (2016) | |
# https://github.com/dantheman213 | |
# DESCRIPTION | |
# Export your app's table schemas and stored functions from a PostgreSQL | |
# database into individual *.sql files for easy management and source control. |
#!/bin/bash | |
# | |
# description: Apache Tomcat init script | |
# processname: tomcat | |
# chkconfig: 234 20 80 | |
# | |
# | |
# Copyright (C) 2014 Miglen Evlogiev | |
# | |
# This program is free software: you can redistribute it and/or modify it under |
" Don't try to be vi compatible | |
set nocompatible | |
" Helps force plugins to load correctly when it is turned back on below | |
filetype off | |
" TODO: Load plugins here (pathogen or vundle) | |
" Turn on syntax highlighting | |
syntax on |