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centos7 - fail2ban running on CentOS 7 & getting “ssh connection refused”

Is anyone successfully running
fail2ban on CentOS 7 and can tell me how to do
it?




I tried to install
fail2ban with yum install fail2ban and
run it (there are no extra rules in iptables -L which seems odd
according to what I found on the net).



As soon
as I reboot the server I can't login as root or other user via ssh. The ports are not
visible when scanning and of course I get this error when I try to connect:



ssh: connect to host
            XXX.XXX.XXX.XXX port 12321: Connection refused


I changed the ssh
port, but I also tried it with port 22 without luck.




I wonder if someone knows a
solutions to this problem?



It has to be a
problem with fail2ban because I didn't install anything
else.



/>

UPDATE
I can log in via ssh after reboot.
But no html page is served. Output of iptables
-L:






Chain INPUT (policy ACCEPT) target prot opt source
destination
f2b-sshd tcp -- anywhere anywhere
multiport dports ssh ACCEPT all -- anywhere
anywhere
ctstate RELATED,ESTABLISHED ACCEPT all -- anywhere />anywhere INPUT_direct all -- anywhere
anywhere INPUT_ZONES_SOURCE all --
anywhere
anywhere INPUT_ZONES all -- anywhere
anywhere ACCEPT icmp
-- anywhere anywhere
REJECT all -- anywhere anywhere
reject-with
icmp-host-prohibited



Chain FORWARD (policy
ACCEPT) target prot opt source
destination ACCEPT all -- anywhere
anywhere
ctstate RELATED,ESTABLISHED ACCEPT all -- anywhere />anywhere FORWARD_direct all -- anywhere
anywhere FORWARD_IN_ZONES_SOURCE
all -- anywhere
anywhere FORWARD_IN_ZONES all -- anywhere
anywhere
FORWARD_OUT_ZONES_SOURCE all -- anywhere
anywhere FORWARD_OUT_ZONES all --
anywhere
anywhere ACCEPT icmp -- anywhere anywhere
REJECT all --
anywhere anywhere
reject-with icmp-host-prohibited




Chain OUTPUT (policy ACCEPT) target prot opt source />destination OUTPUT_direct all -- anywhere
anywhere




Chain FORWARD_IN_ZONES (1
references) target prot opt source
destination FWDI_public all --
anywhere
anywhere [goto] FWDI_public all -- anywhere
anywhere
[goto]



Chain FORWARD_IN_ZONES_SOURCE (1
references) target prot opt
source destination




Chain FORWARD_OUT_ZONES (1 references) target prot opt source />destination FWDO_public all -- anywhere
anywhere [goto] FWDO_public all
-- anywhere
anywhere [goto]



Chain
FORWARD_OUT_ZONES_SOURCE (1 references) target prot opt
source destination




Chain FORWARD_direct (1
references) target prot opt source
destination




Chain FWDI_public (2 references) target prot opt source />destination FWDI_public_log all -- anywhere
anywhere FWDI_public_deny
all -- anywhere
anywhere FWDI_public_allow all -- anywhere />anywhere



Chain FWDI_public_allow (1
references) target prot opt source
destination




Chain FWDI_public_deny (1 references) target prot opt source />destination



Chain FWDI_public_log (1
references) target prot opt source
destination




Chain FWDO_public (2 references)
target prot opt source
destination FWDO_public_log all -- anywhere />anywhere FWDO_public_deny all -- anywhere
anywhere FWDO_public_allow all
-- anywhere
anywhere



Chain
FWDO_public_allow (1 references) target prot opt source
destination



Chain FWDO_public_deny (1 references) target
prot opt source
destination



Chain
FWDO_public_log (1 references) target prot opt source
destination



Chain INPUT_ZONES (1 references) target prot
opt source
destination IN_public all -- anywhere
anywhere

[goto] IN_public all -- anywhere anywhere />[goto]



Chain INPUT_ZONES_SOURCE (1
references) target prot opt source
destination




Chain INPUT_direct (1 references) target prot opt source />destination



Chain IN_public (2
references) target prot opt source
destination IN_public_log all --
anywhere
anywhere IN_public_deny all -- anywhere
anywhere
IN_public_allow all -- anywhere
anywhere




Chain IN_public_allow (1 references) target prot opt source />destination ACCEPT tcp -- anywhere anywhere
tcp dpt:ssh ctstate
NEW




Chain IN_public_deny (1
references) target prot opt source
destination




Chain IN_public_log (1 references) target prot opt source />destination



Chain OUTPUT_direct (1
references) target prot opt source
destination




Chain f2b-sshd (1 references) target prot opt source />destination RETURN all -- anywhere
anywhere


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