You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@cloudstack.apache.org by "Wei Zhou (JIRA)" <ji...@apache.org> on 2016/06/24 21:44:16 UTC
[jira] [Commented] (CLOUDSTACK-6432) Prevent VR from response to
DNS request from outside of network
[ https://issues.apache.org/jira/browse/CLOUDSTACK-6432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15348720#comment-15348720 ]
Wei Zhou commented on CLOUDSTACK-6432:
--------------------------------------
[~nuxro]
you can try this simple commit
{code}
diff --git a/systemvm/patches/debian/config/opt/cloud/bin/cs/CsAddress.py b/systemvm/patches/debian/config/opt/cloud/bin/cs/CsAddress.py
index 585594f..e6aea26 100755
--- a/systemvm/patches/debian/config/opt/cloud/bin/cs/CsAddress.py
+++ b/systemvm/patches/debian/config/opt/cloud/bin/cs/CsAddress.py
@@ -425,9 +425,9 @@ class CsIP:
self.fw.append(
["filter", "", "-A INPUT -i %s -p udp -m udp --dport 67 -j ACCEPT" % self.dev])
self.fw.append(
- ["filter", "", "-A INPUT -i %s -p udp -m udp --dport 53 -j ACCEPT" % self.dev])
+ ["filter", "", "-A INPUT -i %s -p udp -m udp --dport 53 -s %s -j ACCEPT" % (self.dev, self.address['network'])])
self.fw.append(
- ["filter", "", "-A INPUT -i %s -p tcp -m tcp --dport 53 -j ACCEPT" % self.dev])
+ ["filter", "", "-A INPUT -i %s -p tcp -m tcp --dport 53 -s %s -j ACCEPT" % (self.dev, self.address['network'])])
self.fw.append(
["filter", "", "-A INPUT -i %s -p tcp -m tcp --dport 80 -m state --state NEW -j ACCEPT" % self.dev])
self.fw.append(
@@ -476,9 +476,9 @@ class CsIP:
self.fw.append(
["filter", "", "-A INPUT -i %s -p udp -m udp --dport 67 -j ACCEPT" % self.dev])
self.fw.append(
- ["filter", "", "-A INPUT -i %s -p udp -m udp --dport 53 -j ACCEPT" % self.dev])
+ ["filter", "", "-A INPUT -i %s -p udp -m udp --dport 53 -s %s -j ACCEPT" % (self.dev, self.address['network'])])
self.fw.append(
- ["filter", "", "-A INPUT -i %s -p tcp -m tcp --dport 53 -j ACCEPT" % self.dev])
+ ["filter", "", "-A INPUT -i %s -p tcp -m tcp --dport 53 -s %s -j ACCEPT" % (self.dev, self.address['network'])])
self.fw.append(
["filter", "", "-A INPUT -i %s -p tcp -m tcp --dport 80 -m state --state NEW -j ACCEPT" % self.dev])
{code}
> 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)