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Bug 947162

Summary:	Turn off iptables by default and have no pre-loaded rules in EC2
Product:	Red Hat Enterprise Linux 6	Reporter:	Jay Greguske <jgreguske>
Component:	ec2-images	Assignee:	Jay Greguske <jgreguske>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Ina Panova <ipanova>
Severity:	unspecified	Docs Contact:
Priority:	medium
Version:	6.4	CC:	dgao, dgregor, ipanova, jgreguske, sforsber, tsanders
Target Milestone:	rc	Keywords:	EC2
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-12-09 19:21:15 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	883504

Description Jay Greguske 2013-04-01 19:02:25 UTC

Amazon recommends turning off iptables in the EC2 images:

With our EC2 Security Groups iptables on by default is redundant and
ends up with a negative customer experience when they launch and
instance, select their security group, but still get denied access to
their application.  Even our Security SAs agree with this.

Comment 2 Suzanne Forsberg 2013-04-09 14:46:47 UTC

Since Amazon configures the firewall externally (i.e. outside the RHEL VM), the Platform Security Engineering team agrees that it is acceptable to disable iptables by default on the RHEL EC2 image.

See Amazon's documentation for more details on their external provisioning.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-network-security.
html

We would like to revisit this decision for RHEL 7 when we have an implementation for firewalld.

Comment 3 dgao 2013-09-13 10:59:48 UTC

commit to spin-kickstarts repo: e950f440c69ef71240a1830c06381bff529b8eec

Comment 5 Ina Panova 2013-11-14 10:56:40 UTC

# chkconfig --list iptables
iptables       	0:off	1:off	2:off	3:off	4:off	5:off	6:off
# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination   

Verified with ami-17c59f7e (stage), rh-amazon-rhui-client-2.2.93-1