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Table 2 Default settings of firewalls from major cloud service providers

From: The role and security of firewalls in cyber-physical cloud computing

Provider Firewall Web Documentation Inbound/outbound Configuration Default inbound config Default outbound config
  available interface available separated parameters   
Amazon EC2 8 Transport layer protocol9, port (single or range), source (anywhere or single IP) SSH (TCP, 22) from anywhere10) * to anywhere
Google Compute Engine 11 12 Transport layer protocol, port (single or range), source (anywhere, single IP or range) ICMP, SSH (TCP, 22) from anywhere, RDP (TCP, 3389) from anywhere, UDP and TCP (all ports) from same /16 * to anywhere (not configurable)
IBM (Softlayer)       
Microsoft Azure (Classic) 13 14 Transport layer protocol, port (single), source (range) SSH (TCP, 22) from anywhere * to anywhere (not configurable)
Microsoft Azure (Res. Mgr.) 15 Priority (of a rule), transport layer protocol, port (single or range), source and destination (anywhere or range), action (allow or deny) SSH (TCP, 22) from anywhere * to anywhere
Rackspace