jovimon

How to compile and install latest realtek network driver in pfSense 2.4.x (FreeBSD 11.1)

1. Download FreeBSD 11.1 VMDK and create a VM with it as HDD.

2. Get FreeBSD source tree for your exact FreeBSD version and uncompress it to /usr/src:

   fetch -o /tmp ftp://ftp.freebsd.org/pub/`uname -s`/releases/`uname -m`/`uname -r | cut -d'-' -f1,2`/src.txz
   tar -C / -xvf /tmp/src.txz
   

3. Download latest Realtek network driver (you need to input an email address).

neuni

Install openVPN server on Google Cloud using Pritunl

Purpose:

Create a openVPN server on Google Cloud Platform to connect to your Google Cloud network using openVPN and/or to route your internet traffic through the VPN (Road Warrior Scenario)

Create instance

• Create new instance in default network
• Chosse Ubuntu 16.04 LTS

erikreagan

Mac web developer apps

This gist's comment stream is a collection of webdev apps for OS X. Feel free to add links to apps you like, just make sure you add some context to what it does — either from the creator's website or your own thoughts.

— Erik

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs