UPDATE ---- Just found that /etc/nsswitch.conf had file instead of files. So stupid mistake.
I corrected it and then I can see root user, when I issue id command.
Hi I have a doubt, here if a file does not have the write permissions to the root user my script is going to write the data into that file. when i executed the script as root user. Is it correct ... ? (4 Replies)
Hi,
How can I start CDE for non root user created.For root CDE is working fine but for non root user CDE exits back to login screen after trying for some time.Also I cant see .dt and .dtprofile files in the users home directory.How can I create them.Kindly help.
Thanks & Regards,
Kiran. (1 Reply)
Please let me know how to setup a non-root user to be able to access a privileged port (<1024) on Solaris 8. I am currently running tomcat as "tomcat" user and I get the following error during to start up:
SEVERE: Error initializing endpoint
java.net.BindException: Permission denied<null>:443 (5 Replies)
I've just installed Sol 10 Update 9 on a Sun 4140 server and have a RAID 1 configuration (2 136 Gb drives) for the OS and have created a RAID 5 array (6 136 GB) drives. When i log into the system I am unable to see the RAID 5 disks at all. I've tried using the devfsadm command but no luck and... (9 Replies)
I am not able to get ftp working for Solaris 10 for root user. I am getting login failed error.
331 Password required for root.
Password:
530 Login incorrect.
Login failed.
Tried following things already.
1. SFTP works ok, still would like to know why FTP is not working (curious).
2.... (5 Replies)
Hello,
I've read many posts that offer tips on how to mount a CDROM but I haven't seen any on how to get the system to recognize the CDROM drive.
I was transferring files from CDROM to the hard drive successfully. I entered the third CDROM and the system refused to automount it. I tried... (2 Replies)
what does the last column in /etc/shadow file indicate??
i read man page,it tells its FLAG..but i am not able to understand exactly why its there :confused:
thanks in advance,
shekhar (4 Replies)
Hi!! one strange problem occurred with my RHEL 5 box.
i'm having logs folder with ownership of non-root user. Created some files with root user under logs folder.
here is the scene:
-rw-r----- 1 root root 1048227 Feb 28 12:34 SystemOut_13.02.28_12.34.10.log
-rw-r----- 1 root root ... (6 Replies)
Hi
New to Suse - mainly used Solaris.
In solaris dmesg will also show you contents of messages log file but in Suse Liux it doesnt appear to.
I dont have root access to this Suse server, and wondering is there any other tool / utility that allows me to see the messages file contents like on... (1 Reply)
Welcome to all.
Have an issue and looking for help so hope someone is able to give me some clues.
I prepared some shell scripts with coloured output to help other guys to have more automated task. Not sure if I did this but now whenever I use 'ls' command for root user every output in... (29 Replies)
Discussion started by: TiedCone
29 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)