Setting-nya dimasukkan dalam file /etc/network/interfaces

sya punya masalah setting ip di ubuntu server
masalah setting

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.0.41
netmask 255.255.255.0

network di restart

Don’t seem to have all the variables for eth0/inet
Failed to bring up eth0.

padahal kalo p-akai ifconfig eth0 ip addr mau di konfigurasi tapi masalahnya lg kalo pakai if config bila di reboot hilang konfigurasinya

saya kesulitan seting jaringan di jaunty . outpuntya spt ini :
root@andung-desktop:/home/andung# lshw -C network
*-network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: eth0
version: 01
serial: 00:e0:4c:36:0a:a0
size: 10MB/s
capacity: 100MB/s
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no module=r8169 multicast=yes port=MII speed=10MB/s
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: pan0
serial: b6:f5:86:9f:4e:67
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A link=yes multicast=yes
root@andung-desktop:/home/andung#

root@andung-desktop:/home/andung# ifconfig
eth0 Link encap:Ethernet HWaddr 00:e0:4c:36:0a:a0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:254 Base address:0xc000

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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

root@andung-desktop:/home/andung#
root@andung-desktop:/home/andung# /etc/init.d/networking restart
* Reconfiguring network interfaces… [ OK ]
root@andung-desktop:/home/andung#
root@andung-desktop:/home/andung# gedit /etc/network/interfaces

root@andung-desktop:/home/andung# dhclient eth0
Internet Systems Consortium DHCP Client V3.1.1
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth0/00:e0:4c:36:0a:a0
Sending on LPF/eth0/00:e0:4c:36:0a:a0
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 19
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12
No DHCPOFFERS received.
No working leases in persistent database – sleeping.

root@andung-desktop:/home/andung# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
link-local * 255.255.0.0 U 0 0 0 eth0
default * 0.0.0.0 U 1000 0 0 eth0
root@andung-desktop:/home/andung#

###############################################################################
lab
auto lo
iface lo inet loopback
iface eth0 inet static
address 192.168.0.41
netmask 255.255.255.0
auto eth0

eth0 Link encap:Ethernet HWaddr 00:11:5b:10:49:9a
inet addr:192.168.0.41 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:18 Base address:0xcc00

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:96 errors:0 dropped:0 overruns:0 frame:0
TX packets:96 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7656 (7.6 KB) TX bytes:7656 (7.6 KB)

root@lab-purworejo:/home/lab# lshw -C network
*-network
description: Ethernet interface
product: SiS900 PCI Fast Ethernet
vendor: Silicon Integrated Systems [SiS]
physical id: 7
bus info: pci@0000:03:07.0
logical name: eth0
version: 02
serial: 00:11:5b:10:49:9a
size: 100MB/s
capacity: 100MB/s
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sis900 driverversion=v1.08.10 Apr. 2 2006 duplex=full ip=192.168.0.41 latency=32 link=no maxlatency=11 mingnt=52 module=sis900 multicast=yes port=MII speed=100MB/s
*-network DISABLED
description: Ethernet interface
physical id: 1
logical name: pan0
serial: 12:4d:c9:46:dd:1e
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A link=yes multicast=yes

root@lab-purworejo:/home/lab# ping 192.168.0.21
PING 192.168.0.21 (192.168.0.21) 56(84) bytes of data.
From 192.168.0.41 icmp_seq=1 Destination Host Unreachable
From 192.168.0.41 icmp_seq=2 Destination Host Unreachable
From 192.168.0.41 icmp_seq=3 Destination Host Unreachable
From 192.168.0.41 icmp_seq=4 Destination Host Unreachable
From 192.168.0.41 icmp_seq=5 Destination Host Unreachable
From 192.168.0.41 icmp_seq=6 Destination Host Unreachable
From 192.168.0.41 icmp_seq=7 Destination Host Unreachable
From 192.168.0.41 icmp_seq=8 Destination Host Unreachable
From 192.168.0.41 icmp_seq=9 Destination Host Unreachable
From 192.168.0.41 icmp_seq=10 Destination Host Unreachable
From 192.168.0.41 icmp_seq=11 Destination Host Unreachable
From 192.168.0.41 icmp_seq=12 Destination Host Unreachable
From 192.168.0.41 icmp_seq=13 Destination Host Unreachable
From 192.168.0.41 icmp_seq=14 Destination Host Unreachable
From 192.168.0.41 icmp_seq=15 Destination Host Unreachable
From 192.168.0.41 icmp_seq=16 Destination Host Unreachable
root@lab-purworejo:/home/lab# /etc/init.d/networking restart

* Reconfiguring network interfaces… grep: /etc/resolv.conf: No such file or directory
grep: /etc/resolv.conf: No such file or directory

root@lab-purworejo:/home/lab# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 1000 0 0 eth0
root@lab-purworejo:/home/lab#
root@lab-purworejo:/home/lab# iptables -S
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT
root@lab-purworejo:/home/lab#
root@lab-purworejo:/home/lab# dmesg | grep eth0
[ 2.967436] eth0: SiS 900 PCI Fast Ethernet at 0xcc00, IRQ 18, 00:11:5b:10:49:9a
[ 2588.406511] eth0: Media Link Off
[ 2588.406633] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 3408.017230] eth0: Media Link Off
[ 3408.017358] ADDRCONF(NETDEV_UP): eth0: link is not ready
root@lab-purworejo:/home/lab#

mohon di beri pencerahan
. trims

met siang mas eko
saya motanya ubuntu 8.04

saya udah intall ubuntu desktop 8.04 yang akan di jadikan server berjalan dengan mulus koneksi ke speedy juga jalan,

setelah saya install dns server dan di konfigurasi mendadak internetnya nga bisa koneksi lagi (mati)

kira2 maslahnya dimana yah

seting di komputer saya

wandi@server:$ /etc/resolv.conf
search telkom.net
nameserver 202.134.0.155
nameserevr 202.134.2.5

nameserver 192.168.1.2 (ip komputer saya)

mohon bantuannya

FX. Eko Budi Kristanto:
Gateway sudah diarahkan ke modem speedy-nya Mas? Ping ke IP modem speedy apakah sudah jalan?

teman.. saya mempunyai masalah pada proxy server di warnet saya, setelah koneksi di tingkatkan, kenapa kinerja proxy saya jadi melambat (proxy melayani 16 user), sehingga user merasa koneksinya yg lambat, sudah saya coba tingkatkan RAM nya menjadi 1,5 G dan HDD menjadi 250 G. Proxy akan kembali normal lagi bila di restrat,. Ada yang menyarakan untuk mengunakan 2 buah proxy sekaligus (dng metode load balancing) tapi saya ga tau gimana caranya.
bila teman ada memiliki pengalaman yang sama , sudi kira berbagi pengalaman dengan saya, bagaimana cara mengatasinya.

1.sekalian tanya apakah Hardware saya gunakan sudah cukup?

2.bila mengunakan 2 buah proxy sekaligus bagaimana caranya, mohon saran dan penjelasannya

best regards
Hasdi

hi friend saya menemukan kesulitan pada linux networking untuk jaringan small office……………..

klu bisa tolong kirimkan prosedur setting konfigurasi server dan konfigurasi workstation. saya menggunakan linux ubuntu ver 7.10……

best regards

chandra

FX. Eko Budi Kristanto:
Setting server apa Mas? Kebetulan saya juga sedang belajar Ubuntu 7.10. Karena kesibukan saya dengan rencana launching situs tempat kerja saya akhir-akhir ini, ditambah dengan rencana mau liburan 3 minggu, artikel tentang konfigurasi server di Ubuntu belum sempat saya tulis. Kemungkinan baru pertengahan Januari.