# modprobe ip_gre
 # ip tu ad gretun mode gre local 10.5.5.5 remote 10.6.6.6 ttl 64 dev eth0
 # ip ad ad dev gretun 10.0.0.3 peer 10.0.0.4/32
 # ip li se dev gretun up
 # ip ro ad 10.6.10.0/24 via 10.0.0.4
 # ip ro ad 10.6.20.0/24 via 10.0.0.4

Line nomor 2: local address interface fisik dan remote address interface fisik

Line nomor 3: interface tunnel address local dan interface tunnel address remote

Linux networking > Cisco
or
Mikrotik > Cisco

http://www.linuxfoundation.org/collaborate/workgroups/networking/tunneling#GRE_tunnels

Font Knowledge

Each computer different font installed.
So, need a backup font.

Color/Warna

Pengetahuan warna diperlukan juga dalam web desain.

Tiga variasi warna: Red, Green, Blue

Sebuah tangki air dimuat penuh air dan akan dituangkan/diberi pewarna, berat pewarna warna biru = 25 kg, pewarna warna merah = 25kg, pewarna warna hijau = 25 kg, air didalam tangki akan berwarna apa?

Kamu bisa lihat disini:
http://www.mathsisfun.com/hexadecimal-decimal-colors.html

decimal value > biner value > hexavalue


Ada 16 juta warna. Kamu bisa melihat iterasinya di silverlight dibawah ini:

We need python to put into image/picture to the picture/image folder.

We need a database to storage our table (pair of value).

We need php to send email to just registered user.

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/sec-Configuring_Connection_Settings.html

Tunneling butuh 3 pasang IP.

First step is to create our tunnel interface on R1 and R2 :

R1	R2
R1(config)# interface Tunnel1 R1(config-if)# ip address 172.16.1.1 255.255.255.0 R1(config-if)# ip mtu 1400 R1(config-if)# ip tcp adjust-mss 1360 R1(config-if)# tunnel source 1.1.1.1 R1(config-if)# tunnel destination 2.2.2.2	R2(config)# interface Tunnel1 R2(config-if)# ip address 172.16.1.2 255.255.255.0 R2(config-if)# ip mtu 1400 R2(config-if)# ip tcp adjust-mss 1360 R2(config-if)# tunnel source 2.2.2.2 R2(config-if)# tunnel destination 1.1.1.1