You are right env port was 6000 not 6001. Alex thanks a lot 
I have another guestion do You know what can be wrong if my Peers in IN connection is unreachable?

You are right env port was 6000 not 6001. Alex thanks a lot 
I have another guestion do You know what can be wrong if my Peers in IN connection is unreachable?

Press info [I] and read the details
you are welcome!
I read it but i am not sure if i understand. It means that this is ok?
Yes, it’s because the peers doesn’t respond to ping (icmp filtered)
But as long the peers are present, is fine
Thanks
Have a nice day 

Is this ok if i have 1 Out and 3 In on BP?
Depends on how many relays you are connected to. I would assume you are fine here.
i have one relay
if you have 1 single Relay, why on Producer u have 3 peers IN? should be only your relay there;
do u run the topology updater scirpt on Producer?
Cheers.
No i run topology updater just on relay and in topology file on BP node i have just one producer and is address of relay
Ok, how many peers do u see to IN on the Producer?

Ok; understand…
On ur producer type
sudo ufw allow proto tcp from Relay_Ip to any port 6001
sudo ufw reload
Restart the node
This way u will allow connections only from ur relay
i cannot start BP i have:
COULD NOT CONNECT TO A RUNNING INSTANCE, 3 FAILED ATTEMPTS IN A ROW!
It didnt restart for 9 days, maybe is something with Mary era?
Relay is working, i restarted.
journalctl -e -f -u cnode.service
Or
journalctl -e -f -u cardano-node.service
Thank you it showed me that i do not have permissions so i did that and is ok:
chmod 400 vrf.skey
And at the moment i have 1 IN.
Have a nice day and thxt! 
HI, would you tell me please where you modify that 'env port ? thanks a lot
In env file
nano env and replace cnode port which by default it’s 6000 with ur desire port