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From: Gregory (Grisha) Trubetskoy (grisha_at_ispol.com)
Date: Thu 07 Oct 2004 - 05:04:51 BST


After some script reading, this tuns out to be documented:

         name

                     When this file exists, the interface will be named
                     with the text in this file. Without such an entry,
                     the IP will not be shown by 'ifconfig' but by 'ip
                     addr ls' only. Such a labeled interface is known
                     as an "alias" also (e.g. 'eth0:foo').

...sorry to clutter the list, but perhaps someone will find it helpful.

Grisha

On Wed, 6 Oct 2004, Gregory (Grisha) Trubetskoy wrote:

>
> OK, this isn't over yet :-)
>
> I just compiled and installed 2.6.8.1-vs1.9.3-rc2.1, with
> util-vserver-0.30.195 on a freshly installed FC1 machine.
>
> Created a vserver, created a config (using the new utils method) when i start
> it (with or without hide_netif in the flags file), the interface is NOT
> created (ifconfig does not show it from either outside or inside), yet I can
> ping the IP number and ssh to the vserver from outside.
>
> I noticed a listdevip tool in utils, it shows:
>
> # ./listdevip
> 127.0.0.1/255.0.0.0
> 192.168.1.105/255.255.255.0
> 192.168.1.130/255.255.255.0
>
> The .130 address is the vserver.
>
> Is this normal?
>
> More info:
>
> The exact config:
>
> # find . -type f -print -exec cat {} \;
> ./context
> 1000
> ./flags
> lock
> ./uts/nodename
> test.ispol.com
> ./nice
> 9
> ./interfaces/0/dev
> eth0
> ./interfaces/0/ip
> 192.168.1.130
> ./interfaces/0/bcast
> 192.168.1.255
> ./interfaces/0/mask
> 255.255.255.0
> ./fstab
> none /dev/pts devpts gid=5,mode=620 0 0
> none /proc proc defaults 0 0
>
> From inside the vserver:
>
> # ifconfig -a
> eth0 Link encap:Ethernet HWaddr 00:30:1B:33:8E:9E
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:590 errors:0 dropped:0 overruns:0 frame:0
> TX packets:367 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:55077 (53.7 Kb) TX bytes:75701 (73.9 Kb)
> Interrupt:209 Base address:0x9000
>
> From outside:
>
> # ifconfig -a
> eth0 Link encap:Ethernet HWaddr 00:30:1B:33:8E:9E
> inet addr:192.168.1.105 Bcast:192.168.1.255 Mask:255.255.255.0
> inet6 addr: fe80::230:1bff:fe33:8e9e/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:626 errors:0 dropped:0 overruns:0 frame:0
> TX packets:387 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:58251 (56.8 Kb) TX bytes:79517 (77.6 Kb)
> Interrupt:209 Base address:0x9000
>
> 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:16 errors:0 dropped:0 overruns:0 frame:0
> TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:1240 (1.2 Kb) TX bytes:1240 (1.2 Kb)
>
> sit0 Link encap:IPv6-in-IPv4
> NOARP MTU:1480 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)
>
>
>
>
> Thanks,
>
> Grisha
>
> On Wed, 6 Oct 2004, Herbert Poetzl wrote:
>
>> On Wed, Oct 06, 2004 at 04:28:03PM -0400, Gregory (Grisha) Trubetskoy
>> wrote:
>>>
>>> In vs 1.9.3 I noticed that ifconfig from within a vserver shows the inet
>>> addr of eth0 and lo (in 1.2x it did not) - is this the way it's supposed
>>> to be, or am I missing a configuration option of some kind?
>>
>> yes! (yes or yes)
>>
>> it is supposed to be so, and you are probably looking
>> for VXF_HIDE_NETIF ...
>>
>> HTH,
>> Herbert
>>
>>> Thanks!
>>>
>>> Grisha
>>> _______________________________________________
>>> Vserver mailing list
>>> Vserver_at_list.linux-vserver.org
>>> http://list.linux-vserver.org/mailman/listinfo/vserver
>>
>
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