====== Docker ======

==== Attach / Dettach ====

<code bash>
docker attach <id|name>
</code>

== Prevent termination while <Ctrl> + C in term ==
by changing sig proxy it can be prevented.
<code bash>
docker attach --sig-proxy=false <id|name>
</code>


==== Host Firewall ====

Setting up firewall port forwarding and exposing service to world or specific IP.

<code bash>
# Forwarding port traffic
firewall-cmd --permanent --zone=public --add-forward-port=port=3030:proto=tcp:toport=3030

# Allowing access from specific host
firewall-cmd --permanent --zone=public --add-rich-rule="rule 
family="ipv4" \
source address="192.168.1.5/32" \
port protocol="tcp" port="3030" accept"
</code>