Re: Network Shared close periodically

2011-01-13 Thread Rachid Ayad
 Sorry i forgot to say even when only windows is running the network is 
also stopping priodically. Before installing linux as double boot I 
shrinked the NTFS parttion to free space for linux so 

The wireless source is in a linux box running linux enterprize.

 Thank you, Rachid


On Thu, 13 Jan 2011, Rachid Ayad wrote:

Justly I just arrived at a Lab that has many wondows boxes and I need linux 
for my work so I installed SL Linux 5.5 as double boot with VISTA and in all 
machines with double boot windows-linux the network is lost periodically. All 
the PCs have USB wireless probe. I am new in the Lab but at the time I am 
writing this email i did not check yet the wrieless source.


Thank you, rachid.


On Thu, 13 Jan 2011, Francesco Alfano wrote:


Hello,
I have a problem with the (exported) sharing of network resources.
Initially i've used a sever with RedHat 7.3 kernel 2.4 now i've installed 
Scientific Linux 5.5 with kernel 2.6.18-194.32.1.el5PAE with Samba version 
3.0.33-3.29.el5_5.1.
The problem is that I lose the network connection periodically, about 10 
minutes!


I initially thought the problem was caused by a misconfiguration of samba 
version of sl, that I installed on a client machine with windows 2000 the 
Microsoft Windows for Unix in order to use nfs connection exported from 
linux server, but the problema arise equally.


It's a serious problem for me because the disconnection of a mapped drive 
on w2k (connected via smb or nfs) is causing the crash of a basic 
application that tries to detect the presence every second of a new file in 
shared resource.


This problem was not present with the older version of linux !!!


Thanks in advance for your help.

--
--
Best Regards
Francesco Alfano





Re: Network Shared close periodically

2011-01-13 Thread Mark Stodola
This could be a simple matter of firmware for the USB wireless 
adapters.  Have you tried removing the USB adapters for a few seconds 
after linux has been shutdown, then booting windows?  You could also 
unplug them while windows is running and then replug to load windows' 
copy of the firmware.  I've had adapters that refuse to work between the 
2 OSes because of mismatched driver/firmware combinations without 
removing power from the adapter.  I imagine there is some flag or device 
ID change that occurs once the firmware is properly loaded, causing 
subsequent loads to be ignored.  I've seen this with JTAG programmers as 
well.  You may be experiencing this, only in a more subtle manner.


-Mark

Rachid Ayad wrote:
 Sorry i forgot to say even when only windows is running the network 
is also stopping priodically. Before installing linux as double boot I 
shrinked the NTFS parttion to free space for linux so 

The wireless source is in a linux box running linux enterprize.

 Thank you, Rachid


On Thu, 13 Jan 2011, Rachid Ayad wrote:

Justly I just arrived at a Lab that has many wondows boxes and I need 
linux for my work so I installed SL Linux 5.5 as double boot with 
VISTA and in all machines with double boot windows-linux the network 
is lost periodically. All the PCs have USB wireless probe. I am new 
in the Lab but at the time I am writing this email i did not check 
yet the wrieless source.


Thank you, rachid.


On Thu, 13 Jan 2011, Francesco Alfano wrote:


Hello,
I have a problem with the (exported) sharing of network resources.
Initially i've used a sever with RedHat 7.3 kernel 2.4 now i've 
installed Scientific Linux 5.5 with kernel 2.6.18-194.32.1.el5PAE 
with Samba version 3.0.33-3.29.el5_5.1.
The problem is that I lose the network connection periodically, 
about 10 minutes!


I initially thought the problem was caused by a misconfiguration of 
samba version of sl, that I installed on a client machine with 
windows 2000 the Microsoft Windows for Unix in order to use nfs 
connection exported from linux server, but the problema arise equally.


It's a serious problem for me because the disconnection of a mapped 
drive on w2k (connected via smb or nfs) is causing the crash of a 
basic application that tries to detect the presence every second of 
a new file in shared resource.


This problem was not present with the older version of linux !!!


Thanks in advance for your help.

--
--
Best Regards
Francesco Alfano






--
Mr. Mark V. Stodola
Digital Systems Engineer

National Electrostatics Corp.
P.O. Box 620310
Middleton, WI 53562-0310 USA
Phone: (608) 831-7600
Fax: (608) 831-9591


Re: Network Shared close periodically

2011-01-13 Thread Rachid Ayad
  Sorry I forgot to mention that this is exactly what I was doing in 
windows just unplug and plug the adapter and the network comes back but I 
experienced it stopps again and this is what I mean it stops periodically. 
I will investigate more.


 Thank you, Rachid

On Thu, 13 Jan 2011, Mark Stodola wrote:

This could be a simple matter of firmware for the USB wireless adapters. 
Have you tried removing the USB adapters for a few seconds after linux has 
been shutdown, then booting windows?  You could also unplug them while 
windows is running and then replug to load windows' copy of the firmware. 
I've had adapters that refuse to work between the 2 OSes because of 
mismatched driver/firmware combinations without removing power from the 
adapter.  I imagine there is some flag or device ID change that occurs once 
the firmware is properly loaded, causing subsequent loads to be ignored. 
I've seen this with JTAG programmers as well.  You may be experiencing this, 
only in a more subtle manner.


-Mark

Rachid Ayad wrote:
 Sorry i forgot to say even when only windows is running the network is 
also stopping priodically. Before installing linux as double boot I 
shrinked the NTFS parttion to free space for linux so 

The wireless source is in a linux box running linux enterprize.

 Thank you, Rachid


On Thu, 13 Jan 2011, Rachid Ayad wrote:

Justly I just arrived at a Lab that has many wondows boxes and I need 
linux for my work so I installed SL Linux 5.5 as double boot with VISTA 
and in all machines with double boot windows-linux the network is lost 
periodically. All the PCs have USB wireless probe. I am new in the Lab but 
at the time I am writing this email i did not check yet the wrieless 
source.


Thank you, rachid.


On Thu, 13 Jan 2011, Francesco Alfano wrote:


Hello,
I have a problem with the (exported) sharing of network resources.
Initially i've used a sever with RedHat 7.3 kernel 2.4 now i've installed 
Scientific Linux 5.5 with kernel 2.6.18-194.32.1.el5PAE with Samba 
version 3.0.33-3.29.el5_5.1.
The problem is that I lose the network connection periodically, about 10 
minutes!


I initially thought the problem was caused by a misconfiguration of samba 
version of sl, that I installed on a client machine with windows 2000 the 
Microsoft Windows for Unix in order to use nfs connection exported from 
linux server, but the problema arise equally.


It's a serious problem for me because the disconnection of a mapped drive 
on w2k (connected via smb or nfs) is causing the crash of a basic 
application that tries to detect the presence every second of a new file 
in shared resource.


This problem was not present with the older version of linux !!!


Thanks in advance for your help.

--
--
Best Regards
Francesco Alfano






--
Mr. Mark V. Stodola
Digital Systems Engineer

National Electrostatics Corp.
P.O. Box 620310
Middleton, WI 53562-0310 USA
Phone: (608) 831-7600
Fax: (608) 831-9591