Opensuse Host Id

English Install/Boot/Login
#1

Hi, I’m new with OpenSuse, always using fedora without problem but I like the Opensuse stability. Now I have a problem installing a Software, its FlEXlm server I need the host id, and it show me “0000000” in Fedora too, but I use a fix that wont work on Opensuse and I loss the internet connection, its this one.

  1. Edit /etc/default/grub.
  2. At the end of the GRUB_CMDLINE_LINUX line append the text: net.ifnames=0 biosdevname=0
  3. Save the file.
  4. Execute the following commands: grub2-mkconfig -o /boot/grub2/grub.cfg
    reboot

if someone can help me to find a way to fix this problem…

  1. Thanks
  2. Franco
#2

Well, you changed interface names so now you need to go in YaST and configure “new” interfaces under new names. Old configuration is not used anymore.

#3

Hi thanks for you answer, I cannot understand what you want to say, and what I want is to set the Host id that now is “000000” to the real twelve numbers. if you can explain how can I set the host id right. ill appreciate that.

Thanks
Franco.

#4

On Thu, 13 Feb 2014 15:46:01 +0000, Franco Ar wrote:

> arvidjaar;2624488 Wrote:
>> Well, you changed interface names so now you need to go in YaST and
>> configure “new” interfaces under new names. Old configuration is not
>> used anymore.
>
> Hi thanks for you answer, I cannot understand what you want to say, and
> what I want is to set the Host id that now is “000000” to the real
> twelve numbers. if you can explain how can I set the host id right. ill
> appreciate that.
>
> Thanks Franco.

Do you mean the mac address of the network card?

Try:

/sbin/ifconfig

or

ip link

to get that address.

Jim

–
Jim Henderson
openSUSE Forums Administrator
Forum Use Terms & Conditions at http://tinyurl.com/openSUSE-T-C

#5

Hi Yes, But with some software license server like flexlm it show a blank host id. but anyway I fix it. I use the same way as fedora but in opensuse I cannot connect to internet when I do that, So i need to re-configure manually. Here is the link to the fix, I use the last method.
http://www.schrodinger.com/kb/1649

Thanks you again!

#6

I got the same problem in openSuSe 12.3: gethostid just results in 00000000 as does the hostid commad, while ‘/sbin/ifconfig -a’ shows devices eth0, eth1 and wlan0 with their real hardware addresses.
So what is gethostid querying?
If ifconfiog shows the eth* device names, I would think that this is not the result of device naming changes - or am I wrong and is ifconfig just translating the new names to the old ones?

The problem is with any software using a node-locked license that needs a result from gethostid different from all zeros. Everything worked fine under my previous openSuSE installation.

Please detail what method worked (which one is the last method?)

#7

On 2014-07-30 11:16, gollmer wrote:
>
> I got the same problem in openSuSe 12.3: gethostid just results in
> 00000000 as does the hostid commad, while ‘/sbin/ifconfig -a’ shows
> devices eth0, eth1 and wlan0 with their real hardware addresses.
> So what is gethostid querying?

I don’t see any command “gethostid” :-?

“hostid” does exist, but the scarce documentation does not say how it is
calculated:

info coreutils ‘hostid invocation’:

On that system, the 32-bit quantity happens to be
closely related to the system’s Internet address,
but that isn’t always the case.

There are 3 man pages for “gethostid”: it is not a command, but a
function declared in <unistd.h>

There you read what it is:

DESCRIPTION
gethostid() and sethostid() respectively get or set
a unique 32-bit identifier for the current machine.
The 32-bit identifier is intended to be unique among
all UNIX systems in existence. This normally resem-
bles the Internet address for the local machine, as
returned by gethostbyname(3), and thus usually never
needs to be set.

NOTES
In the glibc implementation, the hostid is stored in
the file /etc/hostid. (In glibc versions before
2.2, the file /var/adm/hostid was used.)

In the glibc implementation, if gethostid() cannot
open the file containing the host ID, then it
obtains the hostname using gethostname(2), passes
that hostname to gethostbyname_r(3) in order to
obtain the host’s IPv4 address, and returns a value
obtained by bit-twiddling the IPv4 address. (This
value may not be unique.)

BUGS
It is impossible to ensure that the identifier is
globally unique.

> The problem is with any software using a node-locked license that needs
> a result from gethostid different from all zeros. Everything worked fine
> under my previous openSuSE installation.

See above… It is an invented number, and you can change it.

–
Cheers / Saludos,

Carlos E. R.

(from 13.1 x86_64 “Bottle” (Minas Tirith))

#8

Thanks for the reply.
I found that the hostid uswedf by flexlm is NOT the one returned by hostid or the gehostid function (which could be changed to an arbitrary string, though on my 12.3 system these fundktion only return 8 hexadecimal digits, while the real hostid has 12). Instead felxlm gets the HWADDR of eth0. And this weas the only problem with my installation - thoug it is the same computer with 3 NICs, the ordering if the interfaces had changed and thus another hostid was delivered.
The solution for me was to just swap the eth* names in
/etc/udev/rules.d/70-persistent-net.rules
Of course this odering helps with flexlm problems only if the NICs present ion the machine are still the same but not, if the previous eth0 network card is exchanged for another one having a diferent HWADDR.

#9

On 2014-07-30 16:36, gollmer wrote:
>
> Thanks for the reply.
> I found that the hostid uswedf by flexlm is NOT the one returned by
> hostid or the gehostid function (which could be changed to an arbitrary
> string, though on my 12.3 system these fundktion only return 8
> hexadecimal digits, while the real hostid has 12). Instead felxlm gets
> the HWADDR of eth0.

Curious.

> And this weas the only problem with my installation
> - thoug it is the same computer with 3 NICs, the ordering if the
> interfaces had changed and thus another hostid was delivered.
> The solution for me was to just swap the eth* names in
> /etc/udev/rules.d/70-persistent-net.rules
> Of course this odering helps with flexlm problems only if the NICs
> present ion the machine are still the same but not, if the previous eth0
> network card is exchanged for another one having a diferent HWADDR.

If that HWADDR is the MAC address, it can be rewritten. I have not done
that in ages, I’m unsure if it depends on the particular hardware or
driver, or how exactly to do it, but if I recall correctly, it was with
mii-diag, mii-tool, or ethtool.

–
Cheers / Saludos,

Carlos E. R.

(from 13.1 x86_64 “Bottle” (Minas Tirith))

#10

Hi
With macchanger…
http://software.opensuse.org/package/macchanger?search_term=macchanger

#11

Thanks a lot for this info, I didn’t even know this was possible. I do not have to try tthat now, but it could save asking for license transfers the next time we have to replace a server which died.

#12

On 2014-07-31 10:36, gollmer wrote:
>
> malcolmlewis;2656736 Wrote:
>> Hi
>> With macchanger…
>> http://tinyurl.com/of8d5xr
>
> Thanks a lot for this info, I didn’t even know this was possible. I do
> not have to try tthat now, but it could save asking for license
> transfers the next time we have to replace a server which died.

Years ago, I maintained a very proprietary application. We used a
“dongle” connected to the printer port. This thing was readable from the
client software, and could contain perhaps 1 KB of data, perhaps less.
We could write to it some data, like a client identification, and it
also contained a block that identified us, and which we could not
change, only the manufacturer.

I never questioned if the thing was really reliable or not, but we were
not the only company using those or similar gadgets.

The client could move the application to another computer. Or have it on
several computers, if he moved the dongle each time. I think I modified
some applications so that they worked in demo mode, or read only mode,
if the dongle was not present, instead of “crashing” (aka bail out) as
they did when I got there.

–
Cheers / Saludos,

Carlos E. R.

(from 13.1 x86_64 “Bottle” (Minas Tirith))