ukazap

# Exponential backoff in Ruby
begin
  make_request
rescue RequestError => e
  if retries <= max_retries
    retries += 1
    sleep 2 ** retries
    retry
  else
    raise "Timeout: #{e.message}"

ukazap

-- Create a group
CREATE ROLE readaccess;

-- Grant access to existing tables
GRANT USAGE ON SCHEMA public TO readaccess;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO readaccess;

-- Grant access to future tables
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO readaccess;

ukazap

const webpack = require('webpack')
const { environment } = require('@rails/webpacker')

// Don't use commons chunk for server_side_render chunk
const entries = environment.toWebpackConfig().entry
const commonsChunkEligible = Object.keys(entries).filter(name => name !== 'server_side_render')

environment.plugins.set('CommonsChunkVendor', new webpack.optimize.CommonsChunkPlugin({
  name: 'vendor',
  minChunks: (module, count) => {

ukazap

Ubuntu 20.04 on a 15" Retina MacBook Pro (Mid-2014)

These are notes from my efforts to get Ubuntu 20.04 installed on my older MacBook Pro. I'm making this gist public in the hopes that it's helpful to others.

I did a Minimal install, but selected the option to install additional 3rd-party drivers.

Wifi doesn't work during the install (because it requires a 3rd-party driver), so you won't be able to choose to download updates while installing. No big deal, run a software update after the install.

The installer takes about 25 minutes to complete. Post-install, most things work. The only driver I had to manually install was for the FaceTime camera. More on that below.

ukazap

Using OTP's observer (appmon replacement) remotely

$ ssh remote-host "epmd -names"
epmd: up and running on port 4369 with data:
name some_node at port 58769

Note the running on port for epmd itself and the port of the node you're interested in debugging. Reconnect to the remote host with these ports forwarded:

$ ssh -L 4369:localhost:4369 -L 58769:localhost:58769 remote-host

ukazap

#Country ban with UFW#

Grab your different country ip addresses and save as Linux IPTables

http://www.ip2location.com/free/visitor-blocker

##Add country## Run the following command