client install does not end

I have installed bigfix 9.5 9 for usage of ibm ilmt on linux
at that time I use cdt to distribute the besclient to target computers to be scanned
all this was ok
now i installed 9.5 with latest level also on linux with db2 and ilmt
I tried a manual install of besclient - no problem
distribute with cdt and adding !requiretty nopasswd in sudoers file
when I define the target host : sudo user/password/linux I can see some ssh sessions coming in in the target
but the install directory is not being created/installed
the state stays : launched and never ends
tried to find some log in the target but nothing is present…
has the location of the logfiles changed - how can we find out what is the blocking issue - why he can not install
and another small question : when I installed previous version of bes-client I had to install the rpm-gpg-key-bigfix file
in this version I could not find any reference to this and the manual install worked and scanned and shipped files to server. Is this file still a requirement ?

thanks for all update/help Guy
best regards, Guy

The log file are located on the cdt machine here are some details:
https://www.ibm.com/support/knowledgecenter/SSQL82_9.5.0/com.ibm.bigfix.doc/Platform/Installation/c_installing_the_cdt_logs_client.html
You should locate on cdt machine the
<client_ip_address>.out
<client_ip_address>.err

To check if the target is “accessible” by cdt you can run the following tests from the cdt machine:
ssh user@ip_address sudo -V
scp user@ip_address:sample_file.txt /tmp/

thanks for the update - will try it out… and feedback
best regards, Guy

tried to locate the logfiles, but the subdir is not even present
drwxr-xr-x. 6 root root 187 Feb 8 19:49 BESClient
dr-xr-xr-x. 2 root root 201 Feb 5 11:18 BESCommon
drwxrwxr-x. 4 root root 35 Feb 5 11:16 BESInstallers
drwxr-xr-x. 11 root root 4096 Feb 8 19:49 BESServer
drwxr-xr-x. 6 root root 242 Feb 5 16:27 BESWebReportsServer
[root@ilmtsrv opt]# pwd
/var/opt

the *.out and *.err files are also not present
the scenario we use : linux machine with bigfix srv installed - bigfix console started from windows machine - select the client deploy tool wizard - specify : set deployment point=bigfix server
best regards, Guy