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ASF GitHub Bot commented on CLOUDSTACK-6432: -------------------------------------------- GitHub user NuxRo opened a pull request: https://github.com/apache/cloudstack/pull/1653 Prevent DNS reflection attacks At least in SG zones DNS on the VR is publicly accessible and as such susceptible to DNS amplification/reflection attacks. This fixes it as per https://issues.apache.org/jira/browse/CLOUDSTACK-6432 You can merge this pull request into a Git repository by running: $ git pull https://github.com/NuxRo/cloudstack patch-4 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/cloudstack/pull/1653.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #1653 ---- commit 67dec778db306386f0f78c017f055c19b3670849 Author: NuxRo <n...@li.nux.ro> Date: 2016-08-22T09:31:41Z Prevent DNS reflection attacks At least in SG zones DNS on the VR is publicly accessible and as such susceptible to DNS amplification/reflection attacks. This fixes it as per https://issues.apache.org/jira/browse/CLOUDSTACK-6432 ---- > Prevent VR from response to DNS request from outside of network > --------------------------------------------------------------- > > Key: CLOUDSTACK-6432 > URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6432 > Project: CloudStack > Issue Type: Bug > Security Level: Public(Anyone can view this level - this is the > default.) > Affects Versions: 4.4.0, 4.5.0 > Reporter: Sheng Yang > Assignee: Sheng Yang > Fix For: 4.4.0, 4.5.0 > > > In basic and shared network, VR use private network nic for dhcp/dns > services. But if private network is on the internet as well, it would make VR > facing outside network. > We would restrain the VR DNS service inside CloudStack managed network. -- This message was sent by Atlassian JIRA (v6.3.4#6332)