serxoz

Void Linux installation (NVMe, btrfs, LVM, full disk encryption using LUKS, 2FA-ish, SSD TRIM)

Here's a record of my experiences when setting up Void Linux for the first time, maybe it contains useful information for somebody :-)

Basics

• Laptop: Lenovo IdeaPad S340
• Void Linux installer version: 20191109 (x86_64 musl)

Features

serxoz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

serxoz

    0. Check keyboard layout on /etc/rc.conf
       set KEYMAP="es" and TIMEZONE="Europe/Madrid"
    
    1. Update all package system
       sudo xbps-install -Suv 

    2. add non-free repo
       sudo xbps-install -Rs void-repo-nonfree 

    3. Software & utilities

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#!/bin/ksh

# Since OpenBSD does not have sockstat this script parses the output 
# of fstat to print a summary indicating which process is listening on which port

fstat | awk '
        BEGIN {
                OFS="\t";
        }
        {

serxoz

import time
import sys
import os

def fai_cousas():
    # Fai cousas durante 10 segundos e logo sae
    time.sleep(10)
    print("Feito") 
    sys.exit(0)

serxoz

Install PostgreSQL on Manjaro

Source: https://wiki.archlinux.org/index.php/PostgreSQL

1. Install postgresql package sudo pacman -S postgresql

2. Switch to the postgres user account and initialize the database cluster:

sudo -iu postgres

serxoz

package main

import (
    "fmt"
    "os"
    "os/signal"
    "time"

    "golang.org/x/net/context"
)

serxoz

package main

import (
	"crypto/tls"
	"crypto/x509"
	"flag"
	"io"
	"io/ioutil"
	"log"
	"os"

serxoz

import gnupg
gpg = gnupg.GPG()

# cifrado simétrico
vaca = gpg.encrypt("esto é unha proba", [], symmetric=True, passphrase='1234')
print(vaca.data)
# b'-----BEGIN PGP MESSAGE-----\n\njA0EBwMCPaDu/4KW8In40kYBvzWul1ccpl4+GP4YVZHv4ppEZ3JydNIKPQViMvhO\nIndNIr2/+3dKFqifBQdZQiAr4X3U3R0QKeWbi1XOcGecPoj5L90m\n=dHQ6\n-----END PGP MESSAGE-----\n'

# descifrado
boi = gpg.decrypt(vaca.data, passphrase='1234')

serxoz

# Generate a unique private key (KEY)
sudo openssl genrsa -out mydomain.key 2048

# Generating a Certificate Signing Request (CSR)
sudo openssl req -new -key mydomain.key -out mydomain.csr

# Creating a Self-Signed Certificate (CRT)
openssl x509 -req -days 365 -in mydomain.csr -signkey mydomain.key -out mydomain.crt

# Append KEY and CRT to mydomain.pem