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OndrejValenta / Install PostgreSQL with PostGIS on Ubuntu.md
Last active July 22, 2019 20:55

This installation is based on Postgres Apt repository

  • Installation steps for Postgres are defined here
  • Installation steps for PostGIS are defined here

Add keys to Apt

sudo apt install curl ca-certificates gnupg
sudo curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
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OndrejValenta / Configuration of iptables for Redis, Graylog, Ping.md
Last active July 11, 2019 00:40

This is our set of iptables rules on Ubuntu 18.04

It is based on idea of blocked INPUT ports and opened OUTPUT ports but it would be smarter to close OUTPUT ports as well and just let open what we really need. Output rules in the rules below are not really needed because all OUTPUT traffic is open but when we decide to close it everything should keep working because the rules are already there.

We use Hetzner.com servers that are all in one private network. You should check you ifconfig to see what your interfaces are.

Let's start with the basics

Disable everything, enable ssh. Notice that for some iptables records we use -i parameter with ens10 (private network) or eth0 (public network) interfaces. You can safely remove this parameters/commands if you have only one interface you want to control.

@OndrejValenta
OndrejValenta / Install Redis on Ubuntu 18.04.md
Last active July 15, 2024 14:31

Based on this article

sudo apt-get update
sudo apt-get upgrade

sudo apt-get install redis-server
sudo systemctl enable redis-server.service
@OndrejValenta
OndrejValenta / Install Graylog on Ubuntu 18.04.md
Last active October 19, 2022 07:34
All steps necessary to install Graylog on Ubuntu 18.04, specifically Hetzner.com version of Ubuntu that is missing Java and pwgen that had to be installed.

Based on this video and guidelines for Java, MongoDB, Elasticsearch and so on

(not yet completed, ended at Graylog running but not configured)

JAVA + other prerequisities

sudo apt-get update && sudo apt-get -y install zsh   -- SO YOU DON'T WANT TO DRIVE YOURSELF CRAZY WITH PLAIN CONSOLE
chsh -s /bin/zsh -- to set Zsh as a default console

sudo apt-get update
sudo apt install default-jre
@OndrejValenta
OndrejValenta / designer.html
Last active August 29, 2015 14:06
designer
<link href="../core-scaffold/core-scaffold.html" rel="import">
<link href="../core-header-panel/core-header-panel.html" rel="import">
<link href="../core-menu/core-menu.html" rel="import">
<link href="../core-item/core-item.html" rel="import">
<link href="../core-icon-button/core-icon-button.html" rel="import">
<link href="../core-toolbar/core-toolbar.html" rel="import">
<link href="../core-menu/core-submenu.html" rel="import">
<polymer-element name="my-element">