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From "Marcus Sorensen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-535) Virtual Router DNS is restricted to UDP only
Date Mon, 26 Nov 2012 16:24:58 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13503868#comment-13503868
] 

Marcus Sorensen commented on CLOUDSTACK-535:
--------------------------------------------

The commit 82a7e49fad81b001410b66d151743b112d0daa65 should fix this. I added tcp 53 to every
systemvm script that had udp 53 allowed.
                
> Virtual Router DNS is restricted to UDP only
> --------------------------------------------
>
>                 Key: CLOUDSTACK-535
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-535
>             Project: CloudStack
>          Issue Type: Bug
>          Components: Network Controller
>    Affects Versions: 4.0.0
>            Reporter: Tamas Monos
>            Priority: Minor
>
> Issue:
> When a new router VM is generated and started the initial firewall rules allow only port
53 on UDP. Router VMs should allow port 53 on TCP is well due to longer resolutions can switch
to TCP for example cPanel. The cPanel installer will not run if it cannot resolve over TCP.
> Workaround:
> Login to the router VM and execute:
> iptables -A INPUT -i eth0 -p tcp -m tcp --dport 53 -j ACCEPT
> Resolution:
> I'm not sure where the initial firewall rules are coming from (maybe systemVM ISO?) but
there this new rule should be added.

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