Cannot open port on VPS

[PrzemekSkw]

Hello, I know that is not issue but I cannot get any help in linux forums. So forgive me.
I have Raspberry Pi (with transmission installation) in home network connected as wireguard client. My wireguard server is on VPS with CentOS. I try to open port for transmission on that VPS.
I try something like that:

$ sudo firewall-cmd --new-zone=transmission --permanent
success
$ sudo firewall-cmd --reload
success
$ sudo firewall-cmd --get-zones
block dmz drop external home internal public transmission trusted work
$ sudo firewall-cmd --zone=transmission --add-source=10.66.66.8/24 --permanent
success
$ sudo firewall-cmd --zone=transmission --add-port=56457/tcp  --permanent
success
$ sudo firewall-cmd --reload
success

and when that don't help I try this:

sudo iptables -A FORWARD -i eth0 -o wg0 -p tcp --syn --dport 56457 -m conntrack --ctstate NEW -j ACCEPT
$ sudo iptables -A FORWARD -i eth0 -o wg0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
$ sudo iptables -A FORWARD -i wg0 -o eth0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
$ sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 56457 -j DNAT --to-destination 10.66.66.8
$ sudo iptables -t nat -A POSTROUTING -o wg0 -p tcp --dport 56457 -d 10.66.66.8 -j SNAT --to-source 10.66.66.1

also don't work.

$ sudo ss -tulnp | grep LISTEN
tcp    LISTEN     0      128       *:22                    *:*                   users:(("sshd",pid=815,fd=3))
tcp    LISTEN     0      128    [::]:22                 [::]:*                   users:(("sshd",pid=815,fd=4))