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const period = 30;
const epoch = Math.floor(Date.now() / 1000.0);
const expires = (Math.ceil(epoch / period) * period) - epoch;
console.log(expires);

janstuemmel

AWS Regions

all aws regions as JSON file including us-gov regions.

Have fun!

https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.RegionsAndAvailabilityZones.html https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html

janstuemmel

fake shell

a bash-like fake shell

resources

• Xterm js
• Wikipedia: CSI Sequences
• Blog post about writing a shell
• ... it already exists :)

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Parcel Bundler + module stylesheets

Setup

npm i -D postcss-modules

// ./.postcssrc

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#!/bin/sh
# USAGE: execute with e.g.: BAZ=hello ./script.sh 5 1

#
## Variables
#
FOO=foo
${BAR:-bar} # default value "bar" for BAR, can be set from outside the script

echo $FOO $BAR # prints: foo bar

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SSH Reverse Proxy

ssh -nN -R <remote-port>:localhost:<local-port> <username>@<server-ip-or-hostname>

Explanation

• <remote-port> Any free port on your remote server, e.g. 9999
• `` The port your local webserver is listening to, e.g. 8080

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Computer Information:
    Manufacturer:  Unknown
    Model:  Unknown
    Form Factor: Desktop
    No Touch Input Detected

Processor Information:
    CPU Vendor:  AuthenticAMD
    CPU Brand:  AMD FX(tm)-8350 Eight-Core Processor           
    CPU Family:  0x15

janstuemmel

Ungoogle Samsung Galaxy Tab A 10.1

Model: SM-T580, Android 7, 64bit

Read first, flash afterwards! File to download are in the Resources section below!

Unlock OEM

• Settings > System > About Phone > Build Number (Tap 7 times)
• Enable OEM-Unlock in Developer Options

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