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STEAM_COMPAT_DATA_PATH="/home/$USER/.local/share/Steam/steamapps/compatdata/<APP ID>" \
STEAM_COMPAT_CLIENT_INSTALL_PATH="$HOME/.steam" \
WINEPREFIX=$PWD STEAM_COMPAT_MOUNTS=/run/media/$USER/MirexBlack \
    "/home/$USER/.steam/root/steamapps/common/Proton 7.0/proton" run \
    "./drive_c/Program Files/Engine DJ/Engine DJ.exe"

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#!/bin/sh

wget https://github.com/lesovsky/pgcenter/releases/download/v0.9.2/pgcenter_0.9.2_linux_amd64.rpm
sudo yum install pgcenter_0.9.2_linux_amd64.rpm

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#!/usr/bin/env python3

import os
import json
import requests
import logging

# you can create permanent token in account settings: https://accounts.gcorelabs.com/profile/api-tokens
APIKEY = '<your_permanent_token>'

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How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

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sudo dnf install mixxx jack-audio-connection-kit-dbus qjackctl rtirq realTimeConfigQuickScan kernel-tools
sudo usermod -a -G audio,jackuser,users `whoami`

https://wiki.linuxaudio.org/wiki/system_configuration

$ cat /etc/security/limits.d/95-jack.conf:

@jackuser - rtprio 90

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sudo dnf install jack-audio-connection-kit-dbus qjackctl rtirq realTimeConfigQuickScan
sudo usermod -a -G audio,jackuser,users `whoami`

$ cat /etc/security/limits.d/95-jack.conf:

@jackuser - rtprio 90
@jackuser - nice -19
@jackuser - memlock 209715200

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Linux NetFilter, IP Tables and Conntrack Diagrams

IPTABLES TABLES and CHAINS

IPTables has the following 4 built-in tables.

1) Filter Table

Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.

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#!/bin/sh
curl -s https://api.github.com/users/<username>/keys | jq -r ".[].key" > ~/.ssh/authorized_keys_github

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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os
import sys
import json
import logging
import httplib
import argparse

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usage: bind_upload.py [-h] --key <key> --name <name> --zone <zone>

Selectel domains-api bind-zone import helper

optional arguments:
  -h, --help     show this help message and exit

required named arguments:
  --key <key>    Your API Key
  --name <name>  Domain name for creation