gamunu

#include <iostream>
using std::cout;
using std::cerr;
using std::endl;

#include <string>
using std::string;

#include "cryptlib.h"
using CryptoPP::Exception;

gamunu

# How to sign your custom RPM package with GPG key

# Step: 1
# Generate gpg key pair (public key and private key)
#
# You will be prompted with a series of questions about encryption.
# Simply select the default values presented. You will also be asked
# to create a Real Name, Email Address and Comment (comment optional).
# 
# If you get the following response:

gamunu

Every so often I have to restore my gpg keys and I'm never sure how best to do it. So, I've spent some time playing around with the various ways to export/import (backup/restore) keys.

Method 1

Backup the public and secret keyrings and trust database

cp ~/.gnupg/pubring.gpg /path/to/backups/
cp ~/.gnupg/secring.gpg /path/to/backups/
cp ~/.gnupg/trustdb.gpg /path/to/backups/

or, instead of backing up trustdb...

gamunu

Reading data before application startup in Angular 2

In this demonstration I will show you how to read data in Angular2 final release before application startup. You can use it to read configuration files like you do in other languages like Java, Python, Ruby, Php.

This is how the demonstration will load data:

a) It will read an env file named 'env.json'. This file indicates what is the current working environment. Options are: 'production' and 'development';

b) It will read a config JSON file based on what is found in env file. If env is "production", the file is 'config.production.json'. If env is "development", the file is 'config.development.json'.

gamunu

# Allow Vagrant to manage /etc/exports
Cmnd_Alias VAGRANT_EXPORTS_ADD = /usr/bin/tee -a /etc/exports
Cmnd_Alias VAGRANT_NFSD_CHECK = /usr/bin/systemctl status --no-pager nfs-server.service
Cmnd_Alias VAGRANT_NFSD_START = /usr/bin/systemctl start nfs-server.service
Cmnd_Alias VAGRANT_NFSD_APPLY = /usr/sbin/exportfs -ar
Cmnd_Alias VAGRANT_EXPORTS_REMOVE = /bin/sed -r -e * d -ibak /*/exports
Cmnd_Alias VAGRANT_EXPORTS_REMOVE_2 = /bin/cp /*/exports /etc/exports
%vagrant ALL=(root) NOPASSWD: VAGRANT_EXPORTS_ADD, VAGRANT_NFSD_CHECK, VAGRANT_NFSD_START, VAGRANT_NFSD_APPLY, VAGRANT_EXPORTS_REMOVE, VAGRANT_EXPORTS_REMOVE_2

Afterwards add yourself to the vagrant group if you are not there already by running:

gamunu

Disabling telemetry takes a little more work but can be accomplished in about five minutes. Type "about:config" in the address bar, and you will be notified that you could void your warranty (Firefox has a warranty?). Click on "I accept the risk." Type in "telemetry" in the search bar to see the results. Only some can be changed, and according to Mozilla, they are:

browser.newtabpage.activity-stream.feeds.telemetry
browser.newtabpage.activity-stream.telemetry
browser.ping-centre.telemetry
toolkit.telemetry.archive.enabled
toolkit.telemetry.bhrPing.enabled
toolkit.telemetry.enabled
toolkit.telemetry.firstShutdownPing.enabled
toolkit.telemetry.hybridContent.enabled

gamunu

# Noise canceling source
#
# start with pipewire -c filter-chain/input-filter-chain.conf
#
context.properties = {
    log.level        = 0
}

context.spa-libs = {
    audio.convert.* = audioconvert/libspa-audioconvert

gamunu

[Unit]
Description=PipeWire Input Filter Chain
After=pipewire.service
BindsTo=pipewire.service

[Service]
ExecStart=/usr/bin/pipewire -c /home/<username>/.config/pipewire/input-filter-chain.conf
Type=simple
Restart=on-failure

gamunu

function mvImgBySize
{
  minX=128
  miny=96
  xres=`identify -format "%[fx:w]" "$1"`
  yres=`identify -format "%[fx:h]" "$1"`
  if [ $xres -lt $minX ] || [ $yres -lt $minY ]
  then
    mv "$1" /path/to/backup/location/
  fi

gamunu

docker run --name wsl-kernel-builder --rm -it ubuntu:latest bash

WSL_COMMIT_REF=linux-msft-wsl-5.10.16.3 # change this line to the version you want to build

# Install dependencies
apt update
apt install -y git build-essential flex bison libssl-dev libelf-dev bc

# Checkout WSL2 Kernel repo
mkdir src