Tero Keso TeroKeso

Short how-to harden your Nextcloud Server with Fail2Ban

Install fail2ban:

sudo apt update && sudo apt install fail2ban -y

Create the Nextcloud-filter:

sudo nano /etc/fail2ban/filter.d/nextcloud.conf

Short how-to harden your Nextcloud Server with Fail2Ban

Install fail2ban:

sudo apt update && sudo apt install fail2ban -y

Create the Nextcloud-filter:

sudo nano /etc/fail2ban/filter.d/nextcloud.conf

##Run install_syncthing.sh

$ curl -s https://gist.githubusercontent.com/hdml/7b079c114d3e20bf69f1/raw/1cd3647b1db4f80726c145fba725e27993a7fcdb/install_syncthing.sh | sudo bash

Start syncthing

$ syncthing

Wait until you get something like:

tmux vs. screen commands

Action	tmux	screen
start a new session	`tmux` `tmux new` `tmux new-session`	`screen`
start a new session with a name	`tmux new -s name`	`screen -S name`
re-attach a detached session	`tmux attach` `tmux attach-session`	`screen -r`
re-attach a detached session with a name	`tmux attach -t name` `tmux a -t name`	`screen -r name`
re-attach an attached session (detaching it from elsewhere)	tmux attach -dtmux attach-session -d	screen -dr

Available Public Wildcard DNS Domains pointing to localhost (127.0.0.1)

It turns out that some kind hearted people already set up wildcard domains for you already. You can use any domain below and/or any subdomain of these and they currently resolve to 127.0.0.1 but could switch at any time to resolve somewhere else. Here's the list of ones I know about. Let me know if there are more!

localhost - It will always works. Do you know why? I hope so.
[*.]fuf.me - Managed by @fidian; it will always point to localhost for IPv4 and IPv6
[*.]fbi.com - 👏 👏 👏 👏 👏
[*.]localtest.me
[*.]127-0-0-1.org.uk
[*.]vcap.me

How to install game-porting-toolkit (aka proton for macOS)

What is this?

In the recent WWDC, Apple announced and released the "game porting toolkit", which upon further inspection this is just a modified version of CrossOver's fork of wine which is a "compatibility layer" that allows you to run Windows applications on macOS and Linux.

Why would I want this?

Playing Windows games on MacOS

	# the following two lines give a two-line status, with the current window highlighted
	hardstatus alwayslastline
	hardstatus string '%{= kG}[%{G}%H%? %1`%?%{g}][%= %{= kw}%-w%{+b yk} %n*%t%?(%u)%? %{-}%+w %=%{g}][%{B}%m/%d %{W}%C%A%{g}]'

	# huge scrollback buffer
	defscrollback 5000

	# no welcome message
	startup_message off

	<#
	- BIOS of host machine also needs to be configured to allow hardware virtualization
	- Windows 10 Pro or otherwise is needed; Windows 10 Home Edition CANNOT get WSL
	- This gist WSLv2, but can use WSLv1 instead. I needed v1 as I run Windows 10 in a VM in Virtualbox.
	- WSLv2 has been giving me problems in Virtualbox 6.1, but WSLv1 works properly.
	- vbox has issues with the GUI settings when it comes to nested virtualization on certain systems,
	so run the following if needing to give a VM this enabled setting:

	VBoxManage modifyvm <vm-name> --nested-hw-virt on
	#>

	## Download Go
	sudo wget --output-document /opt/go.tar.gz https://go.dev/dl/go1.22.0.linux-amd64.tar.gz

	## Remove Existing Go and Extract Downloaded Go
	sudo rm -rf /usr/local/go && sudo tar --directory /usr/local --extract --gzip --file /opt/go.tar.gz && sudo rm /opt/go.tar.gz

	## Delete Derp if there is & Recreate user for Derper
	sudo userdel -r derp & sudo useradd --system --create-home --home-dir /opt/derp --shell /bin/bash derp

	> cd /Applications/VMware\ Fusion\ Tech\ Preview.app/Contents/Library/VMware\ OVF\ Tool
	> ./ovftool --acceptAllEulas /Users/$USER/Virtual\ Machines.localized/Windows\ 11\ 64-bit\ Arm\ 2.vmwarevm/Virtual\ Disk.vmx /Users/$USER/export.ova