01-09-2020
Quote:
Originally Posted by
RudiC
Well - compare configurations and report back, that is...
I do have root access but I m not a system admin. I checked sshd.conf and found them to be identical on both the source systems.
Can you please give me pointers as to which file / configuration and what to check ?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I'm trying to run a set of commands on a remote machine using ssh in a shell script. One of the commands is unzip. But when the execution reaches this command, the script fails with an error that unzip is not found. Below is the code and the error snippet.
sourceDir=$1 ; filename=$3 ; destDir=$2... (4 Replies)
Discussion started by: farahzaiba
4 Replies
2. Shell Programming and Scripting
I want to capture actual error message in case the commands I use in my shell script fails.
For eg:
ls -l abc.txt 2>>errorlog.txt
In this case I understand the error message is written to the errorlog.txt and I assume its bacause the return code from the command ls -l abc might return 2 if... (3 Replies)
Discussion started by: prathima
3 Replies
3. Shell Programming and Scripting
I'm trying to write a script using expect. I'd like the script to execute several commands when the ssh succeeds and i want it to exit if the ssh fails. Does this require to define a time out for the ssh command so that if the prompt is back before this defined time the next commands are executed??... (2 Replies)
Discussion started by: Hossam_Nox
2 Replies
4. Ubuntu
Unable to set ssh passwordless authentication
I am unable to ssh with passwordless authentication from Windows client onto UBuntu server. The ssh version on UBuntu is OpenSSH_5.8p1 Debian-7ubuntu1, OpenSSL 1.0.0e , while SSH on Windows Client is OpenSSH_5.1p1, OpenSSL 0.9.8k. I turned on ssh... (5 Replies)
Discussion started by: tkota
5 Replies
5. Solaris
I am trying to create a live image of solaris 11.1.
I have used #pkg image-update to upgrade from 11 to 11.1 already. (since only 11.1 can make images of 11.1 due to using new grub)
then from within 11.1 I used pkg install install distribution-constructor
to get latest usbcopy that should be... (1 Reply)
Discussion started by: taltamir
1 Replies
6. Shell Programming and Scripting
The below while loop is in ksh on a SunOs server: SPARC-Enterprise 5.10
The ksh version is: Version M-11/16/88i
The intention of the below while loop is to read through a list of file names in files.txt and
delete each file from a server, one at a time. The delete works, the problem is that if... (6 Replies)
Discussion started by: LES2013
6 Replies
7. Shell Programming and Scripting
Hi,
I am triggering a windows exe file using the below command.
ssh user@remoteserver command.exe -option1:xx /option2:yy
This command is working fine from windows command prompt. When I am triggering the same command from ssh I get the error message cant load
Any ideas to deal with... (2 Replies)
Discussion started by: ahmedwaseem2000
2 Replies
8. IP Networking
Hello :
I want to make a netfilter conntrack module for myself. So I copy all the source code about netfilter conntrack from kernel source tree to my external directory. It can be insmod after compiled. Then I add some members to the struct nf_conn, and it 's compiled successfully. However, it... (1 Reply)
Discussion started by: 915086731
1 Replies
9. Shell Programming and Scripting
I have a constraint to follow organization policy. So i do not have much liberty.
ssh -i /opt/nonprod user1@hostone -t bash works while ssh -i /opt/nonprod -t bash user1@hostone fails
How can I get this to work when I am enforced to put -t bash before the user@hostname ?
Will share debug... (3 Replies)
Discussion started by: mohtashims
3 Replies
10. Shell Programming and Scripting
I have two users on dest_host server viz wlsadm & wasadm.
From src_host server with root user I m able to passwordless login to wlsadm@dest_host however, the same fails for wasadm@dest_host
Below is the debug for both first the working ssh and then the non-working ssh.
Works:
... (6 Replies)
Discussion started by: mohtashims
6 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)