rmdes

[user]
	name = Ricardo Mendes
	email = [email protected]
	username = rmdes
[init]
	defaultBranch = main
[core]
	editor = nvim
	whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
	pager = delta

rmdes

const new_items = [];
const data = this.getWorkflowStaticData('node');

data.ids = data.ids || [];

for (var i=0; i<items.length; i++) {
  if (data.ids.includes(items[i].json.id)) {
    break;
  } else {
    new_items.push({json: {id: items[i].json.id, url: items[i].json.url, name: items[i].json.name}});

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const staticData = getWorkflowStaticData('global');
const newRSSIds = items.map(item => item.json["Date"]);
const oldRSSIds = staticData.oldRSSIds; 

if (!oldRSSIds) {
  staticData.oldRSSIds = newRSSIds;
  return items;
}

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const new_items = [];
const key_field =  "guid";
console.log("key_field from json.key: " + key_field);
const now = $now

// Get static data stored with the workflow
data = $getWorkflowStaticData("node");

// delete the old cache, that didn't have time 
data.ids = null;

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const staticData = $getWorkflowStaticData('node');

latestRead = staticData.latestRead || new Date('2023-02-19');
nextLatest = latestRead;
var recentItems = []

for (let item of items) {
  var currentDate = new Date(item.pubDate);
  if(currentDate > latestRead) {
    recentItems.push(item);

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# i3 Window Manager Cheat Sheet

`$mod` refers to the modifier key (alt by default)

## General
* `startx i3` start i3 from command line
* `$mod+<Enter>` open a terminal
* `$mod+d` open dmenu (text based program launcher)
* `$mod+r` resize mode (<Esc> or <Enter> to leave resize mode)
* `$mod+shift+e` exit i3

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# Custom Cloudron App build/update workflow
#
# To use this template, ensure the following secrets
# * DOCKER_USERNAME
#   * A Docker Hub account username
# * DOCKER_PASSWORD
#   * The Docker Hub password for DOCKER_USERNAME
# * DOCKER_REPONAME
#   * The repository belonging to DOCKER_USERNAME to push updates to
# * CLOUDRON_HOST

rmdes

Living without the Ubuntu mini.iso (in VirtualBox)

The mini.iso for the Ubuntu distribution is legacy since version 20.04LTS (Focal Fossa). This is a bad news for those (like me) that formerly used this distribution to produce lightweight virtual machines for development, teaching, testing, etc. A distribution of the mini.iso for Ubuntu 20.04 is indeed still available here, but there is no guarantee that its availability will continue after Focal Fossa. An askubuntu post on the topic (there are several) is here.

So I decided to find a way to do without the mini.iso, and I wrote this script that takes to the ''tasksel'' step starting from a cloud image in the ubuntu repository. You have many options here about the image format to use: I refer to the .ova file that you find in fo

rmdes

log4j RCE Exploitation Detection

You can use these commands and rules to search for exploitation attempts against log4j RCE vulnerability CVE-2021-44228

Grep / Zgrep

This command searches for exploitation attempts in uncompressed files in folder /var/log and all sub folders

sudo egrep -I -i -r '\$(\{|%7B)jndi:(ldap[s]?|rmi|dns|nis|iiop|corba|nds|http):/[^\n]+' /var/log

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RSS

Please refer to this blogpost to get an overview.

RSS endpoints

Replace *-INSTANCE with one of the public instances listed in the scrapers section. Replace CAPITALIZED words with their corresponding identifiers on the website.

Twitter