Please edit your initial post with pasting the actual command output. That would make it much readable. There should be properly aligned columns here.
Quote:
i have 32 G of RAM , please i need if my system is still ok or No?
As you are asking, probably not. You might want to cap ZFS ARC size but that really depends on the applications you are running and their memory footprint.
Could someone point me in the correct direction or web link containing instructions for installing the System Performance Tool (aka STP) software on an IBM-AIX version 4.? machine. My client has the software (that came from their original server) on a 3" floppy. Thanks! (1 Reply)
I'm running Solaris 8 on a Sun ULTRA 5(SPARC II CPU, 270 MHz) with 64 Mb of RAM.
The machine is very, very slow even doing normal tasks such as reading mail....... I'm nearly afraid to ask it to do some real work.......
On checking out the machine(which I only received last week from our IT... (1 Reply)
I need to prepare script which will run as background process ever 30 mins to collect the following information
1. Memory usage.
2. CPU usage.
3. Number processors running.
4. System resource (CPU and Memory) used by each process.
5. Number of sessions logged
PLEASE HELP ME OUT FROM THIS
... (2 Replies)
Anyone know how to fetch the system performance information by the function except the system command? These information includes CPU load,memory usage,network load,disk capacity,etc. (5 Replies)
I have received an order from upper level manager to "verify system information via Perform/predict'. They asks me to *predict* the system performance. How can I do it as a system admin without the help of application admins and DBAs?
Thanks! (6 Replies)
Dear experts ,
Pls advice for any good Tool to monitor the CPU and performance of AIX the system ..
to keep monitoring to show me the utilization of that system .. (12 Replies)
hi every body i want to check system performance i usually use glance,top,sar and swapinfo but i confused in something so i need explanation about memory issue
first i want check the memory usage i used glance i found this parameter so i need one shows me the differences between these... (2 Replies)
Discussion started by: maxim42
2 Replies
LEARN ABOUT CENTOS
tpm_quote_tools
TPM QUOTE TOOLS(8) TPM QUOTE TOOLS(8)NAME
TPM Quote Tools
PROGRAMS
tpm_mkuuid, tpm_mkaik, tpm_loadkey, tpm_unloadkey, tpm_getpcrhash, tpm_updatepcrhash, tpm_getquote, tpm_verifyquote
DESCRIPTION
TPM Quote Tools is a collection of programs that provide support for TPM based attestation using the TPM quote operation.
A TPM contains a set of Platform Configuration Registers (PCRs). In a well configured machine, some of these registers are set to known
values during the boot up process or at other times. For example, a PCR might contain the hash of a boot loader in memory before it is
run.
The TPM quote operation is used to authoritatively verify the contents of a TPM's Platform Configuration Registers (PCRs). During provi-
sioning, a composite hash of a selected set of PCRs is computed. The TPM quote operation produces a composite hash that can be compared
with the one computed while provisioning.
To use the TPM quote operation, keys must be generated. During provisioning, an Attestation Identity Key (AIK) is generated for each TPM,
and the public part of the key is made available to entities that validate quotes.
The TPM quote operation returns signed data and a signature. The data that is signed contains the PCRs selected for the operation, the
composite hash for the selected PCRs, and a nonce provided as input, and used to prevent replay attacks. At provisioning time, the data
that is signed is stored, not just the composite hash. The signature is discarded.
An entity that wishes to evaluate a machine generates a nonce, and sends it along with the set of PCR used to generate the composite PCR
hash at provisioning time. For this use of the TPM quote operation, the signed data is ignored, and the signature returned is used to val-
idate the state of the TPM's PCRs. Given the signature, the evaluating entity replaces the nonce in the signed data generated at provi-
sioning time, and checks to see if the signature is valid for the data. If so, this check ensures the selected PCRs contain values that
match the ones measured during provisioning.
A typical scenario for an enterprise using these tools follows. The tools expect AIKs to be referenced via one enterprise-wide Universally
Unique Identifier (UUID). The program tpm_mkuuid creates one.
For each machine being checked, an AIK is created using tpm_mkaik. The key blob produced is bound to the UUID on its machine using
tpm_loadkey. The public key associated with the AIK is sent to the entities that verify quotes. Finally, the expected PCR composite hash
is obtained using tpm_getpcrhash. When the expected PCR values change, a new hash can be generated with tpm_updatepcrhash.
The program to obtain a quote, and thus measure the current state of the PCRs is tpm_getquote. The program that verifies the quote
describes the same PCR composite hash as was measured initially is tpm_verifyquote.
SEE ALSO tpm_mkuuid(8), tpm_mkaik(8), tpm_loadkey(8), tpm_unloadkey(8), tpm_getpcrhash(8), tpm_updatepcrhash(8), tpm_getquote(8), tpm_verifyquote(8)
Oct 2010 TPM QUOTE TOOLS(8)