View source for UCoIP DNS/firewall configuration

=DNS configuration=

In order to get the full UCoIP concept working at LAN/Internet it's necessary to configure some DNS records at internal and external DNS servers of the company domain. 

Next is given an example for the public DNS zone configuration. In that example lets suppose that: 

<pre>
DNS domain: domain.com
IPBrick FQDN: srv001.domain.com
Public IP associated to IPBrick: 85.86.87.88
User UCoIP page to create: jsmith.domain.com 
</pre>

So in this case we need to configure the following DNS records:

A records:

<pre>
srv001.domain.com.            IN A     85.86.87.88
voip.domain.com.              IN A     85.86.87.88
webrtc.domain.com.            IN A     85.86.87.88
cafe.domain.com.              IN A     85.86.87.88
ucoip.domain.com.             IN A     85.86.87.88
im.domain.com.                IN A     85.86.87.88
iportaldoc.domain.com.        IN A     85.86.87.88
</pre>

CNAME records:

<pre>
contacts.domain.com.           IN CNAME   srv001.domain.com.
jwchat.domain.com.             IN CNAME   srv001.domain.com.
light.domain.com. 	       IN CNAME   srv001.domain.com.
webphone.domain.com.           IN CNAME   srv001.domain.com.
groupware.domain.com.	       IN CNAME   srv001.domain.com.
webmail.domain.com. 	       IN CNAME   srv001.domain.com.
webrtcproxy.domain.com.        IN CNAME   srv001.domain.com.
*.domain.com.                  IN CNAME   ucoip.domain.com.
</pre>

SRV records for VoIP (SIP):

<pre>
_sips._tcp.domain.com.     IN     SRV   1   0   5061   voip.domain.com.
_sip._tcp.domain.com.      IN     SRV   1   0   5060   voip.domain.com.
_sip._udp.domain.com.      IN     SRV   1   0   5060   voip.domain.com.
</pre>

SRV records for chat (Jabber/XMPP):

<pre>
_jabber._tcp.domain.com.       IN SRV 5 0 5269 im.domain.com.
_xmpp-server._tcp.domain.com.  IN SRV 5 0 5269 im.domain.com.
_xmpp-client._tcp.domain.com.  IN SRV 5 0 5222 im.domain.com.
</pre>

SRV record for UCoIP:

<pre>
_ucoip._tcp.domain.com.        IN SRV 1 0 80   ucoip.domain.com.
</pre>

SRV record for CAFE:

<pre>
_cafe._tcp.domain.com.         IN SRV 1 0 443  cafe.domain.com.
</pre>

SRV record for WebRTC:

<pre>
_webrtc._tcp.domain.com.       IN SRV 1 0 8888 webrtc.domain.com.
</pre>


If IPBrick will be the email server, we need to modify/add the MX record:

<pre>
domain.com.         IN MX       5     srv001.domain.com.
</pre>

SPF - Sender Policy Framework
<pre>
domain.com          IN TXT      "v=spf1 mx ip4:85.86.87.88 -all"
</pre>

Costumer ISP must add this PTR record at reverse DNS zone:
<pre>
 88.87.86.85.in-addr.arpa.     IN PTR      srv001.domain.com.
</pre>

=Firewall/Router configuration=

UCoIP concept uses many services running on their standard ports. IPBrick firewall is prepared to accept all this traffic at public interface (eth1).

But if IPBrick public interface is behind a NAT at Router/Firewall, its necessary to forward the necessary traffic to IPBrick. The list is:

<pre>
HTTP           - 80 TCP
HTTPS          - 443 TCP
SMTP           - 25 TCP
SIP            - 5060 UDP/TCP
SIPS           - 5061 TCP
RTP            - 40000:45000 UDP
RTP            - 50000:55000 UDP
RTP            - 60000:65000 UDP
XMPP-client    - 5222 TCP
XMPP-server    - 5269 TCP
XMPPS          - 5223 TCP
WebRTC         - 8888 TCP
Webphone       - 10060 UDP/TCP
Webphone       - 10062 TCP
</pre>

NOTE: With update04_6.1, it's crucial too to have a Wildcard SSL Certificate. More information here:

[http://eshop.ipbrick.com/eshop/software_info.php?cPath=7_74_16&products_id=907&language=en Update04 security guide]

[https://wiki.ipbrick.com/index.php/How_to_buy_and_configure_a_SSL_certificate_at_IPBrick_6.1 How to buy and configure a SSL certificate at IPBrick]