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Run a Job using Curl

This document describes how to use CURL to interact with the RunDeck server to invoke a Job to run.

The steps are as follows:

1. Authenticate to the RunDeck server and acquire a session cookie.
2. Submit run request for particular Job ID, sending session cookie.

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How can I know if I am in a VM?

virt-what

# virt-what
kvm

lscpu

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WordPress: Performance & Development tips

Contents

• WordPress: Performance & Development tips
  • Contents
  • Introduction
  • System
    • Operating system
• HTTP Daemon

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#!/bin/sh

set -ex

PATH=/bin:/sbin:/usr/bin:/usr/sbin
KEYMAP="us us"
HOST=alpine
USER=anon
ROOT_FS=ext4
BOOT_FS=ext4

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1. Create an hetzner server using Ubuntu
2. Go to the Hetzner's Server dashboard > Images
3. Click on "Mount" over the alpine-linux-extended.iso image
4. Shutdown the server
5. Start the server
6. Click the "Console" icon from the dashboard to open an interactive terminal session
7. Login is root
8. Configure the interface using the command setup-interfaces
9. Pick to setup default eth0
10. Custom config: no

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#!/bin/bash
echo "Chmoding user files to 0644..."
for i in `/usr/local/vesta/bin/v-list-sys-users | awk '{if(NR>2)print}'`; do find /home/$i/web/ -name 'public_html' -type d -print0 | xargs -0 -I {} find '{}' -type f -print0 | xargs -0 -I {} chmod 0644 {}; done
echo "Done."

echo "Chmoding user folder to 0755..."
for i in `/usr/local/vesta/bin/v-list-sys-users | awk '{if(NR>2)print}'`; do find /home/$i/web/ -name 'public_html' -type d -print0 | xargs -0 -I {} find '{}' -type d -print0 | xargs -0 -I {} chmod 0755 {}; done
echo "Done."

echo "Fixing ownership of files..."

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Organizar una mudanza

La idea es realizar un checklist, tanto para los que ya tienen varias mudanzas encima, como los primerizos... basicamente, porque siempre es estresante.

Acepto contribuciones.

Preparativos

• Cajas
• Bolsas de residuo

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Let's Encrypt / Dovecot / Postfix / UFW firewall / Certbot

This tutorial describes how to install TLS to a mail server consisting of Postfix and/or Dovecot by using Let's Encrypt certificates with automatic renewing and firewall management.

The system used for this tutorial was:

$ lsb_release -idrc
Distributor ID: Ubuntu

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#!/bin/bash

sudo dpkg --list 'linux-image*'|awk '{ if ($1=="ii") print $2}'|grep -v `uname -r` | while read -r line; do sudo apt-get -y purge $line;done

sudo apt-get -y autoremove; sudo update-grub

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sudo apt-get install snmpd -y
sudo mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.old
sudo su -
sudo cat > /etc/snmp/snmpd.conf << EOF
# Change public below to your preferred SNMP community string
com2sec readonly  default         public

group MyROGroup v2c        readonly
view all    included  .1                               80
access MyROGroup ""      any       noauth    exact  all    none   none