How do I customize the default rule that allows connection from all sources to port 8775 for nova-api service?
Issue
- I can see the default rule to port 8775 allows access from all sources.
# iptables -nvL | grep 877
1977 166K ACCEPT tcp -- * * 0.0.0.0/0 172.23.4.1 tcp dpt:8775
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I changed /etc/sysconfig/iptables to allow access to this port from only required sources and restarted iptables service. The new rule came into effect.
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But, when nova-api service was restarted next time, the custome rule is overwritten by the default rule which allows access from all sources by service restart.
How can I apply my custom rules to this port?
Environment
- Red Hat Openstack v3.0
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