kentbrew

The Problem

Standard practices say no non-root process gets to talk to the Internet on a port less than 1024. How, then, could I get Node talking on port 80 on EC2? (I wanted it to go as fast as possible and use the smallest possible share of my teeny tiny little micro-instance's resources, so proxying through nginx or Apache seemed suboptimal.)

The temptingly easy but ultimately wrong solution:

Alter the port the script talks to from 8000 to 80:

}).listen(80);

linusthe3rd

var attempts = 1;

function createWebSocket () {
  var connection = new WebSocket();
  
  connection.onopen = function () {
    // reset the tries back to 1 since we have a new connection opened.
    attempts = 1; 

    // ...Your app's logic...

nickautomatic

Set up cmder to use msysgit / bash by default

• Install cmder_mini (msysgit is already installed, so no need for full version)
• In Cmder, open settings: Win + Alt + P
• Under Startup > Tasks, add a task called {bash} with the following settings:
  • Task parameters (set icon):
    • For Cmder icon: /icon "%CMDER_ROOT%\cmder.exe"
    • For Git icon: /icon "C:\Program Files (x86)\Git\etc\git.ico"
  • Commands (open Git's bash shell):
• "C:\Program Files (x86)\Git\bin\sh.exe" -l -new_console:d:%USERPROFILE%

CMCDragonkai

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

joepie91

Don't use VPN services.

No, seriously, don't. You're probably reading this because you've asked what VPN service to use, and this is the answer.

Note: The content in this post does not apply to using VPN for their intended purpose; that is, as a virtual private (internal) network. It only applies to using it as a glorified proxy, which is what every third-party "VPN provider" does.

• A Russian translation of this article can be found here, contributed by Timur Demin.
• A Turkish translation can be found here, contributed by agyild.
• There's also this article about VPN services, which is honestly better written (and has more cat pictures!) than my article.

cecilemuller

How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

---

Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

lap00zza

# coding=utf-8
"""
LAPZBOT Restful

Handles the inter process communications between Lapzbot and the Console, without having to rely on the database
for Server / User information. This is intended to be run in a thread.

Typical UseCase:
----------------
import lapzbotAPI

gboudreau

Generating Authy passwords on other authenticators

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*update: TBC, but this new might affect how easy it is to use this technique past August 2024: Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August

---

This gist, based in part on a gist by Brian Hartvigsen, allows you to export from Authy your TOTP tokens you have stored there.
Those can be "standard" 6-digits / 30 secs tokens, or Authy's own version, the 7-digits / 10 secs tokens.

eashish93

vs Questions

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1. http://stackoverflow.com/questions/804115 (rebase vs merge).
2. https://www.atlassian.com/git/tutorials/merging-vs-rebasing (rebase vs merge)
3. https://www.atlassian.com/git/tutorials/undoing-changes/ (reset vs checkout vs revert)
4. http://stackoverflow.com/questions/2221658 (HEAD^ vs HEAD~) (See git rev-parse)
5. http://stackoverflow.com/questions/292357 (pull vs fetch)
6. http://stackoverflow.com/questions/39651 (stash vs branch)
7. http://stackoverflow.com/questions/8358035 (reset vs checkout vs revert)

lap00zza

const h2 = document.querySelectorAll("h2");
const infoH2 = (() => {
    for (let i = 0; i < h2.length; i++) {
        if (h2[i].innerText === "Information") return h2[i];
    }
})();
// holds the elements between the Information (H2) and the next H2
const elList = [];
// start from the element after the H2
let now = infoH2.nextElementSibling;