iguy0

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

Microsoft Mail Exchange Server 2019 Installation

Download and install the prerequisites

roycewilliams / tychotithonus GitHub starred

Last updated: 2020-09-20

Wireguard and iptables restrictions for multiple users

If you don't know what Wireguard is, well, you should. It's fast, easy to setup and highly configurable. We will configure Wireguard for multiple users with various restrictions using iptables.

Assumptions

This should fit most setups (not mine though 😉)

On your proxmox server edit /etc/interfaces and add a vmbr1 interface like so

auto lo
iface lo inet loopback

auto vmbr0
iface vmbr0 inet static
        address  167.114.101.88
 netmask 255.255.255.0

A HAR archive of the network timings from a compatible browser is extremely useful in pinpointing which issues with Kibana talking to Elasticsearch.

Note on information gathered in a HAR archive

Please note that HAR archives contain sensitive information:

content of the pages you downloaded while recording
your cookies, which will allow anyone with the HAR file to impersonate your account
all the information that you submitted to your browser while recording (i.e., search values, authentication details).

To make rsync both secure and automated (i.e : non-interactive), you can use SSH as the transport and set up a key pair. This is what will be discussed in this post, along with a few improvements.

Basic rsync + ssh

Let’s first ensure that rsync works correctly over ssh :

spaghetti% rsync -avz -e ssh --delete Documents prodigy:/tmp

Password:

	input {
	beats {
	type => "beats"
	port => 5044
	#codec => json
	}
	file {
	type => "procmon"
	############ CHANGE ###################
	path => "/ELK/Analysis/LogFile.CSV"

	1. What is information security and how is it achieved?
	2. What are the core principles of information security?
	3. What is non-repudiation (as it applies to IT security)?
	4. What is the relationship between information security and data availability?
	5. What is a security policy and why do we need one?
	6. What is the difference between logical and physical security? Can you give an example of both?
	7. What’s an acceptable level of risk?
	8. What are the most common types of attacks that threaten enterprise data security?
	9. What is the difference between a threat and a vulnerability?
	10. Can you give me an example of common security vulnerabilities?

	#!/bin/bash
	#
	# renew-letsencrypt-certificates.sh DOMAIN [EMAIL]
	#
	# Copy Let's Encrypt SSL certs from a remote public facing web server to local filesystem
	# Look for changes, if any change, restarts the web service
	# Useful for using Let's Encrypt with local internal servers, with custom DNS.
	# Working "mail" command needed for email alerts
	#