kav2k

First off, I would like to apologize if any of the information presented here comes off as obvious and an insult to anyone's intelligence / knowledge. This is not the intention by any stretch — I simply have to go on no assumptions of relevant knowledge and as such try to explain, at least briefly, most concepts involved.

So, how does sending mail between servers actually work? The sending server (acting as a Mail Transfer Agent, or MTA) connects to another MTA using SMTP (Simple Mail Transfer Protocol). The negotiation starts by a EHLO command where the sender tells the receiver its identity, and then tells what "From" address it's sending for.

In case of your server, it says:

"Hello, I'm server.example.net, and I'm sending mail on behalf of admin@example.org"

Generally, the receiver doesn't have a confirmation (from this connection alone) to go along with this; all it sees from the connection is the IP of the sender (in your case, 11.22.33.44).

kav2k

{
    "env": {
        "browser": true,
        "webextensions": true,
        "es6": true
    },
    "extends": "eslint:recommended",
    "rules": {
        // Allow console
        "no-console": "off",

kav2k

# My personal bash prompt template
# (c) Alexander Kashev, 2017-2019

# To use, copy to home and add to .bashrc:
#
# if [ -f $HOME/.bash_prompt ]; then
#     # For cluster machines: appends suffix if short hostname not equal to it
#     PS1_CLUSTER_NAME=''
#     . $HOME/.bash_prompt
# fi

kav2k

Keybase proof

I hereby claim:

• I am kav2k on github.
• I am xan (https://keybase.io/xan) on keybase.
• I have a public key whose fingerprint is 26A1 F3B5 40E3 7E09 AE2D 7446 7682 C236 DA8C 7215

To claim this, I am signing this object:

kav2k

// April Fools '11
// From dA Message Notifier

function romanize(input) {
	var output = input;
	output = output.toUpperCase();
	output = output.replace(/J/g,'I');
	output = output.replace(/U/g,'V');
	//output = output.replace(/W/g,'VV');
	output = output.replace(/([0-9]+)/g, romanNumeral);

kav2k

<!-- This goes into the head of every comic page / main page -->
<link rel="alternate" type="application/rss+xml" title="Mare Internum RSS" href="/feed">

kav2k

function sanitize(str){
  str = str.replace(/[<>:?*"\/\\|]/, "_", "g");
  str = str.replace(/^(CON|PRN|AUX|NUL|COM\d|LPT\d)$/, "_", "i");
  str = str.replace(/[. ]+$/, "_");
  return str;
}

kav2k

var openPorts = ( function() {
  var index = 0;
  var ports = {};
  var op = {
    getPorts: function() {
      var result = {};
      for(var id in ports){
        result[id] = ports[id];
      }
      return result;

kav2k

// Example sketch for using interrupt-based button press detection
// It will check button state every 500ms and display it along with the push count
// It also sends this information over serial

#include <FastSPI_LED2.h>

#define LED_COUNT 60
struct CRGB leds[LED_COUNT];

#define LED_OUT      13

kav2k

// This is the example sketch that gets loaded on every BlinkyTape during production!

#include <FastSPI_LED2.h>
#include <Animation.h>

#define LED_COUNT 60
struct CRGB leds[LED_COUNT];

#ifdef REVB // RevB boards have a slightly different pinout.