network problem

mido · 2013-02-06 20:30:34

i used slitaz live cds [ core-firefox-loram]. There is an internet connction[eth0]but midori and firefox can't access the internet and i have the error message [ hostname not resolved]. eth0 says it's receiving packets .

I am in a dchp network

mojo · 2013-02-06 21:04:16

Open terminal:

IF

[c]ping 8.8.8.8[/c]

Works

[c]ping www.slitaz.org[/c]

Fails

Then the DNS servers which are assigned by your ISP's udhcpd server are not working.

Your computer contacts the DNS server to get the i.p. address for a web site name query.

The nslookup tool can be used to test the existing DNS server configuration or override by appending the i.p. address of an alternate DNS server.

[c]nslookup www.slitaz.org[/c]

or to try google DNS

[c]nslookup www.slitaz.org 8.8.8.8[/c]

On my machine google DNS replys with correct i.p. address for www.slitaz.org:

root@slitaz:/home/tux# nslookup www.slitaz.org

Server: 8.8.8.8 <= First DNS listed in /etc/resolv.conf

Address 1: 8.8.8.8 google-public-dns-a.google.com

Name: www.slitaz.org <= lookup address name query

Address 1: 94.23.61.29 pangolin.pimentvert.com <= i.p. address with web server domain name

The following edit will use google DNS servers instead of the DNS servers assigned by your i.s.p.

su, password: root

[c]# leafpad /usr/share/udhcpc/default.script[/c]

Add what's in bold:

#!/bin/sh

# udhcpc script edited by Tim Riker

dns="8.8.8.8 8.8.4.4"

[ -z "$1" ] && echo "Error: should be called from udhcpc" && exit 1

...

leafpad=>File/Save/File/Quit

Restart networking:

[c]# /etc/init.d/network.sh restart[/c]

Rerun ping test

mido · 2013-02-06 22:14:07

Thanks for your help but it doesn't ping at all despite that eth0 says that it receives packets . i did what you said and it didn't work and it gave me that

#tux@slitaz:~$ /etc/init.d/network.sh restart

Stopping all interfaces

ifconfig: SIOCSIFFLAGS: Permission denied

ifconfig: SIOCGIFFLAGS: No such device

Killing all daemons

killall: can't kill pid 2064: Operation not permitted

wlan0 No such device

ifconfig: SIOCSIFFLAGS: Permission denied

Starting udhcpc client on: eth0...

udhcpc: socket: Operation not permitted

sed: can't create temp file '/etc/lxpanel/default/panels/panelEO5yFk': Permission denied

tux@slitaz:~$

mojo · 2013-02-06 22:23:27

@mido

#tux@slitaz:~$ /etc/init.d/network.sh restart

You have to be root user to stop|start|restart network.sh

Commands preceded with # indicates you must be root

[c]tux@slitaz:~$[/c] <=regular user

[c]su[/c] <=type

Hit the Enter key

Password: <= system requests root password

[c]root[/c] <=type or your root password if you changed it

Hit the Enter key

[c]root@slitaz:/home/tux#[/c] <=now your root user

If you still can't ping 8.8.8.8 open terminal,post output from commands:

[c]ls /sys/class/net[/c]

[c]ifconfig[/c]

[c]cat /etc/network.conf[/c]

[c]lspci -nn | grep -i eth[/c]

[c]uname -a[/c]

mido · 2013-02-06 22:58:10

i got these outputs

ls /sys/class/net

dummy0 eth0 lo

ifconfig eth0 Link encap:Ethernet HWaddr 00:15:F2:BA:57:0F

inet addr:192.168.77.246 Bcast:192.168.255.255 Mask:255.255.0.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:341 errors:0 dropped:0 overruns:0 frame:0

TX packets:10 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:88154 (86.0 KiB) TX bytes:1552 (1.5 KiB)

Interrupt:19 Base address:0xd000

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

UP LOOPBACK RUNNING MTU:16436 Metric:1

RX packets:248 errors:0 dropped:0 overruns:0 frame:0

TX packets:248 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:47546 (46.4 KiB) TX bytes:47546 (46.4 KiB)

cat /etc/network.conf

# /etc/network.conf: SliTaz system wide networking configuration.

# Config file used by: /etc/init.d/network.sh

#

# Set default interface.

INTERFACE="eth0"

# Dynamic IP address.

# Enable/disable DHCP client at boot time.

DHCP="yes"

# Static IP address.

# Enable/disable static IP at boot time.

STATIC="no"

# Set IP address and netmask for a static IP.

IP="192.168.0.6"

NETMASK="255.255.255.0"

# Set route gateway for a static IP.

GATEWAY="192.168.0.1"

# Set DNS server for a static IP.

DNS_SERVER="192.168.0.1"

# Wifi connection.

# Enable/disable wireless connection at boot time.

WIFI="no"

# Wifi interface (iwconfig) and ESSID.

WIFI_INTERFACE="wlan0"

WIFI_ESSID="any"

WIFI_MODE="managed"

WIFI_KEY=""

WIFI_KEY_TYPE="none"

WPA_DRIVER=""

WIFI_CHANNEL=""

WIFI_IWCONFIG_ARGS=""

lspci -nn | grep -i eth

00:04.0 Ethernet controller [0200]: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet [1039:0900] (rev 90)

root@slitaz:/home/tux#

uname -a

Linux slitaz 2.6.37-slitaz #2 SMP Wed Mar 7 10:36:39 CET 2012 i686 GNU/Linux

root@slitaz:/home/tux#

i'd like to say that i have only one adapter ethernet

mojo · 2013-02-06 23:14:36

The i.p. address assigned to eth0 inet addr:192.168.77.246 is not used on the internet,it is for Local Area Network only.

Is this computer directly connected to a cable/dsl modem or is there a router between it and the modem?

If your connected to a router that assigned the i.p. address can you ping the router ?

Post output from this command:

[c]route[/c]

mido · 2013-02-06 23:30:18

there is a router . i managed to ping the router but the problem still exists "hostname not resolved"

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

127.0.0.1 * 255.255.255.255 UH 0 0 0 lo

192.168.0.0 * 255.255.0.0 U 0 0 0 eth0

root@slitaz:/home/tux# ping 192.168.77.1

PING 192.168.77.1 (192.168.77.1): 56 data bytes

64 bytes from 192.168.77.1: seq=0 ttl=64 time=0.521 ms

64 bytes from 192.168.77.1: seq=1 ttl=64 time=0.456 ms

64 bytes from 192.168.77.1: seq=2 ttl=64 time=0.475 ms

64 bytes from 192.168.77.1: seq=3 ttl=64 time=0.865 ms

64 bytes from 192.168.77.1: seq=4 ttl=64 time=0.564 ms

64 bytes from 192.168.77.1: seq=5 ttl=64 time=1.317 ms

64 bytes from 192.168.77.1: seq=6 ttl=64 time=0.445 ms

64 bytes from 192.168.77.1: seq=7 ttl=64 time=2.364 ms

64 bytes from 192.168.77.1: seq=8 ttl=64 time=0.580 ms

64 bytes from 192.168.77.1: seq=9 ttl=64 time=0.520 ms

64 bytes from 192.168.77.1: seq=10 ttl=64 time=2.214 ms

64 bytes from 192.168.77.1: seq=11 ttl=64 time=0.472 ms

64 bytes from 192.168.77.1: seq=12 ttl=64 time=0.491 ms

mojo · 2013-02-06 23:49:49

Your output of [c]route[/c] has no default gateway which should be the router i.p. (192.168.77.1)

The gateway is the LAN i.p. of the computer or router that provides access to the internet or another network.

My slitaz(192.168.1.2) is connected to a wifi router(192.168.1.1) which connects to the cable modem(internet).

Output of route:

tux@slitaz:~$ route

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

default 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0

127.0.0.1 * 255.255.255.255 UH 0 0 0 lo

192.168.1.0 * 255.255.255.0 U 0 0 0 wlan0

The router's dhcpd is supposed to configure the clients gateway,DNS,mask,broadcast in addition to assigning the i.p. address.

I would power off/on the router to reboot it, then restart network.sh

gdesilva · 2013-02-07 00:22:09

Also, worth checking the dhcp server settings in your router....for example if you are using a more advanced router you are expected to provide all values, like the default gateway, for the dhcp server process running on the router. Perhaps it will be useful to give more details of your network and make and model of the router you are using.

mido · 2013-02-07 05:11:47

thanks for your help but the problem still exists.i can access the internet in windows but not in siltaz.In siltaz I can ping the dhcp server 192.168.77.1 but i can't ping the default gateway 3.3.3.3 and i can't ping any other site.The machine identifies dns servers .

siltaz network begins with wlan which is idle and i change it to eth0 and it receives packets but doesn't access the internet

mojo · 2013-02-07 05:55:37

Figure out the network configuration of windows which connects to the internet and you will figure out how to connect slitaz.

mido · 2013-02-07 12:44:01

ok the error message is Error - http://scn.slitaz.org/

The page 'http://scn.slitaz.org/' couldn't be loaded.

Cannot resolve hostname (scn.slitaz.org)

and these are the outputs of internect connection in slitaz and i don't know what the problem is.

Interface Name Status IP Address Scan ports

eth0 Ethernet connected 192.168.77.246

lo Loopback connected 127.0.0.1

Hosts

127.0.0.1 localhost slitaz tazpanel

Edit hosts

Hostname

Output of ifconfig

eth0 Link encap:Ethernet HWaddr 00:15:F2:BA:57:0F

inet addr:192.168.77.246 Bcast:192.168.255.255 Mask:255.255.0.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:16 errors:0 dropped:0 overruns:0 frame:0

TX packets:10 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:2453 (2.3 KiB) TX bytes:1552 (1.5 KiB)

Interrupt:19 Base address:0xd000

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

UP LOOPBACK RUNNING MTU:16436 Metric:1

RX packets:372 errors:0 dropped:0 overruns:0 frame:0

TX packets:372 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:84592 (82.6 KiB) TX bytes:84592 (82.6 KiB)

Routing table

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

127.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 lo

192.168.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0

Domain name resolution

nameserver 4.2.2.5

nameserver 4.2.2.6

ARP table

? (192.168.77.1) at 00:0c:42:e6:a6:6f [ether] on eth0

IP Connections

Active Internet connections (servers and established)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 1799/httpd

tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN 1787/Xorg

tcp 0 0 0.0.0.0:82 0.0.0.0:* LISTEN 1384/httpd

tcp 0 0 127.0.0.1:82 127.0.0.1:39513 TIME_WAIT -

tcp 0 0 127.0.0.1:82 127.0.0.1:39516 ESTABLISHED 2318/httpd

tcp 0 0 127.0.0.1:82 127.0.0.1:39440 TIME_WAIT -

tcp 0 0 127.0.0.1:82 127.0.0.1:39515 TIME_WAIT -

tcp 0 0 127.0.0.1:39516 127.0.0.1:82 ESTABLISHED 1898/tazweb

tcp 0 0 127.0.0.1:82 127.0.0.1:39514 TIME_WAIT -

mojo · 2013-02-07 17:42:39

i can access the internet in windows but not in siltaz

If a windows computer running on the same network connects to the internet you should be able to copy the windows network configuration to slitaz so it connects to internet from the same network.

Windows: paste the output from [c]ipconfig /all[/c] into your Reply

start/run

type [c]cmd[/c] in run box

click ok button opens windows terminal

In terminal type:

[c]ipconfig /all[/c]

Hit the Enter key

Place the mouse cursor in the terminal window,left click mouse button

Right click mouse choose Select All from menu

Left click with mouse cursor in Slitaz forum Reply/Post: box

Right click mouse choose Paste

mido · 2013-02-07 18:14:14

This what i got

Microsoft Windows XP [Version 5.1.2600]

C:\Documents and Settings\abo>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : abdo

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Unknown

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : SiS 900-Based PCI Fast Ethernet Adap

ter

Physical Address. . . . . . . . . : 00-15-F2-BA-57-0F

Dhcp Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

IP Address. . . . . . . . . . . . : 192.168.77.246

Subnet Mask . . . . . . . . . . . : 255.255.255.255

Default Gateway . . . . . . . . . : 3.3.3.3

DHCP Server . . . . . . . . . . . : 192.168.77.1

DNS Servers . . . . . . . . . . . : 4.2.2.5

4.2.2.6

Lease Obtained. . . . . . . . . . : Thursday, February 07, 2013 8:07:52

PM

Lease Expires . . . . . . . . . . : Thursday, February 07, 2013 9:07:52

PM

C:\Documents and Settings\abo>

mojo · 2013-02-07 19:00:10

Configure a static connection using the windows configuration.

Boot into slitaz,open terminal,su,password: root

[c]# leafpad /etc/network.conf[/c]

Configure network.conf like this:

# /etc/network.conf: SliTaz system wide networking configuration.

# Config file used by: /etc/init.d/network.sh

#

# Set default interface.

INTERFACE="eth0"

# Dynamic IP address.

# Enable/disable DHCP client at boot time.

DHCP="no"

# Static IP address.

# Enable/disable static IP at boot time.

STATIC="yes"

# Set IP address and netmask for a static IP.

IP="192.168.77.246"

NETMASK="255.255.255.255"

# Set route gateway for a static IP.

GATEWAY="3.3.3.3"

# Set DNS server for a static IP.

DNS_SERVER="4.2.2.5 4.2.2.6"

# Wifi connection.

# Enable/disable wireless connection at boot time.

WIFI="no"

# Wifi interface (iwconfig) and ESSID.

WIFI_INTERFACE=""

WIFI_ESSID=""

WIFI_AP=""

WIFI_MODE="managed"

WIFI_KEY=""

WIFI_KEY_TYPE="any"

WPA_DRIVER=""

WIFI_CHANNEL=""

WIFI_IWCONFIG_ARGS=""

leafpad=> File/Save/File/Quit

Restart networking:

[c]# /etc/init.d/network.sh stop[/c]

[c]# /etc/init.d/network.sh start[/c]

gdesilva · 2013-02-08 23:04:49

One obvious mismatch is the network mask with your Slitaz and Windows. In Slitaz you have got 255.255.0.0 as the netmask and in Windows it is 255.255.255.255. The netmask among others is set by your dhcp server and I would have a closer look at your dhcp server settings. Did you get everything going by setting static addressing as suggested by mojo above...

You need to have a default gateway in the local network (which is normally your router) otherwise there is no way of knowing where to forward packets which do not belong to the local network which explains why it cannot find the DNS servers.

SliTaz Forum

SliTaz Forum

#1 2013-02-06 20:30:34

network problem

#2 2013-02-06 21:04:16

Re: network problem

#3 2013-02-06 22:14:07

Re: network problem

#4 2013-02-06 22:23:27

Re: network problem

#5 2013-02-06 22:58:10

Re: network problem

#6 2013-02-06 23:14:36

Re: network problem

#7 2013-02-06 23:30:18

Re: network problem

#8 2013-02-06 23:49:49

Re: network problem

#9 2013-02-07 00:22:09

Re: network problem

#10 2013-02-07 05:11:47

Re: network problem

#11 2013-02-07 05:55:37

Re: network problem

#12 2013-02-07 12:44:01

Re: network problem

#13 2013-02-07 17:42:39

Re: network problem

#14 2013-02-07 18:14:14

Re: network problem

#15 2013-02-07 19:00:10

Re: network problem

#16 2013-02-08 23:04:49

Re: network problem

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