Networking

• Docker networks

Zerotier

• Awesome Zerotier
• ztncui
• Running MPLS over ZeroTier Part 1

Ubuntu

• To see ports in use:

sudo lsof -i -P -n | grep LISTEN 
sudo netstat -tulpn | grep LISTEN

• List of running services:

systemctl list-units --type=service --state=running 

• To list all the IPv4 rules:

sudo iptables -S

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