duh, dah lama ga ngBlog... coba update ahh,
berikut ini perintah2 dasar klo kita mau aktifkan network di ubuntu, coz kemarin gw sempat mengalami kesulitan untuk restart network maklum manusia sering lupa, makanya gw coba tulis di blog ini.


untuk seting ip biar permanen bisa di isi di sini.
nano /etc/network/interfaces
isi nya kurang lebih seperti di bawah ini,
# The primary network interface
auto eth0
iface eth0 inet static
address 172.16.1.10
netmask 255.255.255.0
network 172.16.1.0
broadcast 172.16.1.255
gateway 172.16.1.254
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 172.16.1.254
dns-search xxx.com

untuk perintah restart network
root@reva-laptop:/etc/network# /etc/init.d/network
networking network-manager
root@reva-laptop:/etc/network# /etc/init.d/networking restart

perintah untuk menambahkan ip baru
root@reva-laptop:/etc/network# ifconfig eth0 10.10.10.5 netmask 255.255.255.0

untuk meminta ip secara dhcp
root@reva-laptop:/etc/network# dhclient
Internet Systems Consortium DHCP Client V3.1.2
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

SIOCSIFFLAGS: Unknown error 132
SIOCSIFFLAGS: Unknown error 132
Listening on LPF/wlan0/00:18:de:95:3c:48
Sending on LPF/wlan0/00:18:de:95:3c:48
Listening on LPF/eth0/00:16:36:b0:ba:f7
Sending on LPF/eth0/00:16:36:b0:ba:f7
Sending on Socket/fallback
receive_packet failed on wlan0: Network is down
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
DHCPOFFER of 192.168.0.114 from 192.168.0.254
DHCPREQUEST of 192.168.0.114 on eth0 to 255.255.255.255 port 67
DHCPACK of 192.168.0.114 from 192.168.0.254
bound to 192.168.0.114 -- renewal in 2655 seconds.

root@reva-laptop:/etc/network# ifconfig
eth0 Link encap:Ethernet HWaddr 00:16:36:b0:ba:f7
inet addr:192.168.0.114 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::216:36ff:feb0:baf7/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:930 errors:0 dropped:0 overruns:0 frame:0
TX packets:478 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:128140 (128.1 KB) TX bytes:50664 (50.6 KB)
Interrupt:17

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:7 errors:0 dropped:0 overruns:0 frame:0
TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:576 (576.0 B) TX bytes:576 (576.0 B)

root@reva-laptop:/etc/network#

root@reva-laptop:/etc/network# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.0.254 0.0.0.0 UG 0 0 0 eth0
root@reva-laptop:/etc/network# route add default gw 10.10.10.1
root@reva-laptop:/etc/network# route del default gw 192.168.0.1

configurasi DNS
root@reva-laptop:/etc/network# nano /etc/resolv.conf
=================================
nameserver 192.168.0.254
nameserver 202.159.32.2
================================

menjalankan otomatis service ketika mesin restart.
root@reva-laptop:/etc/network# nano /etc/rc.local