My problem:
I’m connected via ssh to a server and it asks my password only the first time.
After it, it never ask me again. That’s problematic for me in terms of security.
What I need is a command / tool to make password asking be recurrent.

What I did:
I tried sshpass --help but the only available flags are
usefull to set a password, or at least for my understanding level.

Here you have the result of sshpass --help:

[user@hostname ~]$ sshpass --help
sshpass: invalid option -- '-'
Usage: sshpass [-f|-d|-p|-e] [-hV] command parameters
   -f filename   Take password to use from file
   -d number     Use number as file descriptor for getting password
   -p password   Provide password as argument (security unwise)
   -e            Password is passed as env-var "SSHPASS"
   With no parameters - password will be taken from stdin

   -P prompt     Which string should sshpass search for to detect a password prompt
   -v            Be verbose about what you're doing
   -h            Show help (this screen)
   -V            Print version information
At most one of -f, -d, -p or -e should be used

Could you help me please ?