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Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru

install all tools

apt install kali-linux-all

.git folder downloader

git clone https://github.com/internetwache/GitTools.git

Check ports with nmap

nmap -sC -sV -oA initial 10.10.10.78
nmap -sV -sC -oA nmap-tcp 10.10.10.84
nmap -T4 -A -v -p 0-10000 10.10.10.8

How to get and install a wildcard SSL certificate

In this guide you can find how to resolve the following issues.

request a new certificate
set up Nginx to enable your certificate
check SSL configuration rating on your HTTPS site
renew a certificate

Feel free to ask any questions in the comments section below.

This uses Linux kernel dyamic debug features

https://www.kernel.org/doc/html/latest/admin-guide/dynamic-debug-howto.html

This asumes that debugfs is mounted under /sys/kernel/debug

Enable WireGuard debug

echo 'module wireguard +p' | sudo tee /sys/kernel/debug/dynamic_debug/control

	admin account info" filetype:log
	!Host=. intext:enc_UserPassword=* ext:pcf
	"# -FrontPage-" ext:pwd inurl:(service \| authors \| administrators \| users) "# -FrontPage-" inurl:service.pwd
	"AutoCreate=TRUE password=*"
	"http://:@www” domainname
	"index of/" "ws_ftp.ini" "parent directory"
	"liveice configuration file" ext:cfg -site:sourceforge.net
	"parent directory" +proftpdpasswd
	Duclassified" -site:duware.com "DUware All Rights reserved"
	duclassmate" -site:duware.com

	# config to don't allow the browser to render the page inside an frame or iframe
	# and avoid clickjacking http://en.wikipedia.org/wiki/Clickjacking
	# if you need to allow [i]frames, you can use SAMEORIGIN or even set an uri with ALLOW-FROM uri
	# https://developer.mozilla.org/en-US/docs/HTTP/X-Frame-Options
	add_header X-Frame-Options SAMEORIGIN;

	# when serving user-supplied content, include a X-Content-Type-Options: nosniff header along with the Content-Type: header,
	# to disable content-type sniffing on some browsers.
	# https://www.owasp.org/index.php/List_of_useful_HTTP_headers
	# currently suppoorted in IE > 8 http://blogs.msdn.com/b/ie/archive/2008/09/02/ie8-security-part-vi-beta-2-update.aspx

	# PowerView's last major overhaul is detailed here: http://www.harmj0y.net/blog/powershell/make-powerview-great-again/
	# tricks for the 'old' PowerView are at https://gist.github.com/HarmJ0y/3328d954607d71362e3c

	# the most up-to-date version of PowerView will always be in the dev branch of PowerSploit:
	# https://github.com/PowerShellMafia/PowerSploit/blob/dev/Recon/PowerView.ps1

	# New function naming schema:
	# Verbs:
	# Get : retrieve full raw data sets
	# Find : ‘find’ specific data entries in a data set

	curl -sSL https://install.pi-hole.net \| bash
	sudo apt-get -y install software-properties-common python3-certbot-nginx nginx php7.2-fpm php7.2-cgi php7.2-xml php7.2-sqlite3 php7.2-intl apache2-utils
	sudo certbot --nginx --agree-tos --register-unsafely-without-email --no-redirect -d subdomain.example.com
	htpasswd -c /etc/nginx/.htpasswd user
	chown -R www-data:www-data /var/www/html
	usermod -aG pihole www-data
	chmod -R 755 /var/www/html

	server
	{