What could be wrong with my network setup

10-09-2008, 04:35 PM

T o n g wrote:
> On Thu, 09 Oct 2008 05:09:38 +0000, T o n g wrote:
>
>> I can't get any of the proxy server working on my newly installed lenny,
>
> just realize that I can't make any network connection to localhost,
[snip]
> What could be wrong with my network setup?
>
> $ head -1 /etc/hosts
> 127.0.0.1 helios.dnsalias.com localhost
>
> $ ifconfig -a
> eth0 Link encap:Ethernet HWaddr 00:11:2f:be:4b:ba
> inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0
>
where is 'lo' interface?

up it

--
Eugene V. Lyubimkin aka JackYF, Ukrainian C++ developer.

10-09-2008, 04:41 PM

On 2008-10-09 18:27 +0200, T o n g wrote:

> just realize that I can't make any network connection to localhost,
> proxy, http, ssh and even ping.
>
> $ ping 127.0.0.1
> PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
> ^C
> --- 127.0.0.1 ping statistics ---
> 4 packets transmitted, 0 received, 100% packet loss, time 2999ms
>
> What could be wrong with my network setup?
>
> $ head -1 /etc/hosts
> 127.0.0.1 helios.dnsalias.com localhost
>
> $ ifconfig -a
> eth0 Link encap:Ethernet HWaddr 00:11:2f:be:4b:ba
> inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0

Is that all? What's up with the lo(opback) interface?

Sven

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10-09-2008, 07:05 PM

On Thu, 09 Oct 2008 18:41:42 +0200, Sven Joachim wrote:

>> $ ifconfig -a
>> eth0 Link encap:Ethernet HWaddr 00:11:2f:be:4b:ba
>> inet addr:192.168.0.100 Bcast:192.168.0.255
>> Mask:255.255.255.0
>
> Is that all? What's up with the lo(opback) interface?

Ah, there it is:

$ ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:11:2f:be:4b:ba
inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:52480 errors:0 dropped:0 overruns:0 frame:0
TX packets:20313 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:44283715 (42.2 MiB) TX bytes:1864392 (1.7 MiB)
Interrupt:17

lo Link encap:Local Loopback
LOOPBACK 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)

Is the 'lo' normal? I never actually look into its output -- was just
making sure the lo was there...

thanks

--
Tong (remove underscore(s) to reply)
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10-09-2008, 07:13 PM

T o n g wrote:
>
> Is the 'lo' normal? I never actually look into its output -- was just
> making sure the lo was there...
You should up it.

--
Eugene V. Lyubimkin aka JackYF, Ukrainian C++ developer.

10-09-2008, 07:31 PM

On 10/09/08 14:05, T o n g wrote:
[snip]

lo Link encap:Local Loopback
LOOPBACK 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)

Is the 'lo' normal? I never actually look into its output -- was just
making sure the lo was there...

This is what a normal "lo" looks like:

$ /sbin/ifconfig lo
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:31642498 errors:0 dropped:0 overruns:0 frame:0
TX packets:31642498 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2412380672 (2.2 GiB) TX bytes:2412380672 (2.2 GiB)

--
Ron Johnson, Jr.
Jefferson LA USA

"Do not bite at the bait of pleasure till you know there is no
hook beneath it." -- Thomas Jefferson

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10-09-2008, 07:35 PM

On Thu, 09 Oct 2008 22:13:18 +0300, Eugene V. Lyubimkin wrote:

> You should up it.

yep, it works. thanks

--
Tong (remove underscore(s) to reply)
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