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Wireshark-users: [Wireshark-users] dumpcap permissions - Quick help for Ubuntu newbie needed

From: "RUOFF, LARS (LARS)** CTR **" <lars.ruoff@xxxxxxxxxxxxxxxxxx>
Date: Tue, 20 Mar 2012 09:49:27 +0100
Hi,
On an Ubunutu 10.04, I tried to
sudo dumpcap -w d1.pcap
which gave me:
The file to which the capture would be saved ("d1.pcap") could not be opened: Permission denied.
according to my naive Linux knowledge, i would have expected "sudo" to give me all the necessary permissions.
What am i missing here?
 
regards,
Lars