NIC checksum offload enable/disable

To enable/disable NIC checksum offload:

[Windows]
   . Go to Control panel -> Network and Internet -> Network and Sharing Center
   . Click "Change adapter settings"
   . Right click on the NIC and select "Properties"
   . Click "Configure" -> Advanced tab
   . You will find
        . UDP Checksum Offload (IPv4)
        . TCP Checksum Offload (IPv4)
        . IPv4 Checksum Offload
   . Enable/disable could be done there.

Wireshark filter data in payload

. To filter packets with hex value "0xff 0x13" in payload

  frame contains ff:13

Change console resolution for CentOS permanently

vi /etc/grub.conf

append "vga=791" without the quotes to the kernel line

vi/vim settings

/etc/virc for vi
/etc/vimrc for vim
~/.vimrc

syntax on
set autoindent

set number

set sw=4
set tabstop=4
set cindent

Linux mount NAS with NFS type

showmount -e IPAddress

sudo mount -t nfs IPAddress:/ShareFolder /MountPoint

Convert Big5 and UTF-8

convmv: http://www.j3e.de/linux/convmv/

convmv -f big5 -t utf-8 -r --notest folder

-f: from
-t: to
-r: recursive
--notest: do it. If not added, it only tests it

MOOC (Massive Open Online Course)

UdaCity (Programming)
   https://www.udacity.com/

Coursera (Engineering)
   https://www.coursera.org/

Code Cademy (Programming)
   http://www.codecademy.com/

Academic room
   http://www.academicroom.com/

edX
   https://www.edx.org/

Khan Academy (Everything)
   https://www.khanacademy.org/

Code.org (For Children)

均一教育平台
   http://www.junyiacademy.org/