How to batch optimize all jpgs using a bash script to speed up your site

Posted on February 15, 2018February 15, 2018 by Jeffrey Hein

Based on Google Insights article here: https://developers.google.com/speed/docs/insights/OptimizeImages JPEG is a lossy format. The compression process removes visual details of the image, but the compression ratio can be 10x larger than GIF or PNG. Reduce quality to 85 if it was higher. With quality larger than 85, the image becomes larger quickly, while the visual improvement is Read more about How to batch optimize all jpgs using a bash script to speed up your site[…]

How to trim paths in inkscape

Posted on January 31, 2018February 27, 2018 by Jeffrey Hein

use the node tool if you double-click where you want the cut it puts a node there. then shift-B, spacebar, shift-ctrl-k, and you have two paths.

Fix for Plugable bluetooth dongle in Ubuntu Linux 17.10 / 18.10 Bluetooth Headsets mic not working

Posted on January 10, 2018November 29, 2018 by Jeffrey Hein

ID 0a5c:21e8 Broadcom Corp. BCM20702A0 Bluetooth 4.0 Run the commands: wget https://s3.amazonaws.com/plugable/bin/fw-0a5c_21e8.hcd sudo mv fw-0a5c_21e8.hcd /lib/firmware/brcm/BCM20702A0-0a5c-21e8.hcd sudo cp /lib/firmware/brcm/BCM20702A0-0a5c-21e8.hcd /lib/firmware/brcm/BCM20702A1-0a5c-21e8.hcd From: https://plugable.com/2014/06/23/plugable-usb-bluetooth-adapter-solving-hfphsp-profile-issues-on-linux/

What’s the deal with cell phone networks and stuff?

Posted on December 12, 2017October 24, 2018 by Jeffrey Hein

A very confusing topic! Don’t worry I figured it out. =] I will go over topics such as: Networks, Coverage, Technology, Resellers, Roaming, Lifeline (Free low income smart phone and monthly service), Prepaid, Cellphone hardware, Unlocking, Voice over IP (VOIP), Credo Mobile, Google Voice, Google Fi, Republic Wireless & Freedompop. All in the context of Read more about What’s the deal with cell phone networks and stuff?[…]

pfsense OpenVPN Ubuntu client bug and fix

Posted on December 3, 2017December 3, 2017 by Jeffrey Hein

The OpenVPN export package in pfsense does not work out of the box for Ubuntu linux clients. The fix lies with editing the VPN configuration after importing it. You can do this with the following tool: nm-connection-editor click on the connection then click the cog: Edit the selected connection Click “Advanced” Click the “TLS Authentication” Read more about pfsense OpenVPN Ubuntu client bug and fix[…]

How to find any file or folder with a trailing space in it’s name, and delete the trailing space

Posted on November 13, 2017November 13, 2017 by Jeffrey Hein

Windows does not know how to handle files or folders whos name ends in a space. Usually Windows won’t allow you to delete these files, and other bizarre behavior. This is a simple bash command to fix that. find . -name ‘* ‘ -exec sh -c ‘x=”{}”; mv “$x” “${x%?}”‘ \;

Git commands

Posted on September 27, 2017September 27, 2017 by Jeffrey Hein

Add their github fork repo as a remote to a clone of your own repo: git remote add other-guys-repo <url to other guys repo> Get their changes: git fetch other-guys-repo Checkout the branch where you want to merge: git checkout my_new_branch Merge their changes in (assuming they did their work on the master branch): git Read more about Git commands[…]

Hey everyone! Your name, address, birth date, social security #, and other info is compromised. – Credit Reporting Agency Equifax Reveals Massive Hack

Posted on September 9, 2017September 28, 2019 by Jeffrey Hein

Photo courtesy of: http://thehackernews.com/2017/09/equifax-credit-report-hack.html This is pretty amazing. Not a little deal. This information can never be considered secure ever again. I first heard about this on the 7th. I was pretty amazed at the breadth of the breach. Then in the following days reading about the response. Crazy. Equifax is so evil it’s not Read more about Hey everyone! Your name, address, birth date, social security #, and other info is compromised. – Credit Reporting Agency Equifax Reveals Massive Hack[…]

IPV4 Private Subnets

Posted on September 4, 2017September 27, 2017 by Jeffrey Hein

IPv4 Private Address Space and Filtering 10.0.0.0/8 IP addresses: 10.0.0.0 — 10.255.255.255. 172.16.0.0/12 IP addresses: 172.16.0.0 — 172.31.255.255. 192.168.0.0/16 IP addresses: 192.168.0.0 – 192.168.255.255. You can use any and all of these with the /24 netmask for instance 10.1.2.0/24

Creating a custom splash image for a multiboot USB drive from multibootusb.org

Posted on May 27, 2017 by Jeffrey Hein

http://multibootusb.org/page_download/

You cannot hold your cell phone and drive in California. $250 fine. Mount it to your dash with a Magnet for $4!

Posted on May 25, 2017October 29, 2018 by Jeffrey Hein

These mounts are by far the most effective and affordable solution I’ve found. Super easy to use and install. Just slides snugly into your vent on either side of the steering wheel. The small metal disc can be used with or without a case. Inside or outside the case. I recommend the plain black one. Read more about You cannot hold your cell phone and drive in California. $250 fine. Mount it to your dash with a Magnet for $4![…]

How to create a $15 Point of Sales with a Droid X and Square. Howto root, unlock bootloader, install custom recovery, CyanogenMod 11 (Android 4.4.4), and Square Register.

Posted on February 4, 2017February 10, 2017 by Jeffrey Hein

The Droid X is Motorola phone sold by Verizon. It has an SD slot and HDMI out. You can buy good condition used ones on eBay for $15 here. 4.3 inch Screen (~61.0% screen-to-body ratio) More specifications Complete guide to getting the Square Register App on the Droid X [jbox]This only needs to be done Read more about How to create a $15 Point of Sales with a Droid X and Square. Howto root, unlock bootloader, install custom recovery, CyanogenMod 11 (Android 4.4.4), and Square Register.[…]