169 reputation
4
bio website
location
age
visits member for 1 year, 6 months
seen Feb 10 at 16:39

Feb
7
awarded  Organizer
Feb
7
revised ZFS on RedHat configuration
not related to Oracle database
Feb
7
suggested suggested edit on ZFS on RedHat configuration
Nov
28
comment Dropped packets, on recieve only, Server 2008 only, and network speed is 100mb/s
These large packets without cksum can also possibly come from TCP Offload engine. I do not know how it works Windows, but on AIX when you use NICs onboard TCP offload engine then tcpdump sees received packets of size 32KB without any cksum. As some of TCP processing is performed in NIC (not by OS), you must which this feature off in order to see what really happens in the network. The other option is to duplicate the Switch port (on Cisco) and then eavesdrop the communication.
Nov
27
comment Installing software without administrative role
A lot of SW can be installed be "Power User" privs, which is less then Admin. I also think that a lot of software can be installed by user because it's msi is digitally signed. This is Active Directory related stuff.
Nov
27
comment Dropped packets, on recieve only, Server 2008 only, and network speed is 100mb/s
@Porch - compare to system which works properly. This can be something curious like power saving policy, IRQ assignment. Also some NICs support polling - i.e. instead of triggering IRQ for every packet, they buffer packets in a RAM, and then this buffer is slurp periodically by OS. Are all the OSs 64bit?
Nov
26
answered Dropped packets, on recieve only, Server 2008 only, and network speed is 100mb/s
Nov
19
revised Does my Oracle DBA need root access?
details added
Nov
13
awarded  Editor
Nov
13
revised Does my Oracle DBA need root access?
added 62 characters in body
Nov
13
comment Does my Oracle DBA need root access?
@Stephane Oracle is very specific in this case. It's requirements for kernels tuneables can be non-trivial, it has it's own LVM (called ASM) and moreover in case of Oracle RAC some of it's CLusterwares processes run with root privs and it also manipulates storage and NICs. Sometimes it's easier to let DBA execute vxdisk resize command then play email ping-pong in the middle of the night. It is more about trust and auditing then about "security".
Nov
13
awarded  Supporter
Nov
13
answered Does my Oracle DBA need root access?
Apr
5
answered How to read the number of pending requests in the TCP stack backlog under linux?
Feb
2
awarded  Teacher
Feb
2
answered vmware vmdk disk problem