ASF GitHub Bot commented on CLOUDSTACK-10333:

DaanHoogland commented on a change in pull request #2505: CLOUDSTACK-10333: 
Secure Live VM Migration for KVM
URL: https://github.com/apache/cloudstack/pull/2505#discussion_r179684831

 File path: debian/cloudstack-agent.postinst
 @@ -50,6 +50,13 @@ case "$1" in
             mkdir /etc/libvirt/hooks
         cp -a /usr/share/cloudstack-agent/lib/libvirtqemuhook 
+        # Enable TLS enabled VM migration for libvirtd
+        if ! iptables-save | grep -- "-A INPUT -p tcp -m tcp --dport 16514 -j 
ACCEPT" > /dev/null; then
+            iptables -t filter -A INPUT -p tcp -m tcp --dport 16514 -j ACCEPT
+            iptables-save > /etc/iptables/rules.v4
+        fi
 Review comment:
   Is there an alternative that will work. I would not like to see a large 
devide between the amount of work to be done on rhel-like systems versus 

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> Secure VM Live migration for KVM
> --------------------------------
>                 Key: CLOUDSTACK-10333
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-10333
>             Project: CloudStack
>          Issue Type: Improvement
>      Security Level: Public(Anyone can view this level - this is the 
> default.) 
>            Reporter: Rohit Yadav
>            Assignee: Rohit Yadav
>            Priority: Major
>             Fix For:,
> With use of CA framework to secure hosts, the current mechanisms don't secure 
> libvirtd to use those certificates (used by agent to connect to mgmt server). 
> This causes insecure vm migration over tcp instead of tls. The aim is to use 
> the same framework and certificates to secure live VM migration. This could 
> be coupled with securing of a host and renewal/provisioning of certificates 
> to host.
> FS: 
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Secure+Live+VM+Migration+for+KVM

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