SSH port 22: Connection refused, help please

[pibil1]

Greetings Ubuntuforums

Please I need help. I'm using Lubuntu 17.04, I tried to copy a file using "scp" remotely through ssh but logged in the host computer, not local. Ater that when I try to login via ssh I get this error "connect to host foobar port 22: Connection refused".

Things that work:
ssh localhost indeed works

ssh host in another PC through the same router works

Things that haven't worked:
sudo apt-get remove openssh-client openssh-server
sudo apt-get install openssh-client openssh-server
sudo ufw allow 22
ssh -p 22 foo@bar
ssh foo@IP
Going to /etc/ssh/sshd_config and setting "PermitRootLogin yes"
sudo rm /etc/ssh/sshd_config > sudo apt-get purge openssh-server > sudo apt-get install openssh-server
sudo iptables -L > sudo iptables -A INPUT -p tcp --dport ssh -j ACCEPT
/etc/init.d/ssh restart and service ssh restart
rm -rf /root/.ssh/*
/etc/init.d/ssh restart
sudo service ssh restart
Changed /etc/ssh/sshd_config, change Port 22 to Port 2222

Please anybody can help me?, I've donde almost everything I found on google.

Thank you

[TheFu]

NEVER allow remote root. There are always better answers.

Did you allow a port in at the router?

What do the log files show? Always check the logs on the:
a) client
b) server
c) router

I like to have the router do port-translation, so I ssh in on port 63023 when using the WAN router interface and have that forwarded to the server's 22/tcp port. Makes setting up my ~/.ssh/config file nicer too. I use a different hostname for the WAN connection vs from the LAN.

Might help: http://blog.jdpfu.com/2015/08/17/tro...sh-connections

[pibil1]

OK apparently I was in host's jail. Thank you.