> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/configuration-details/configuration-by-web-portal-category/ip-network-settings/dns-configuration.md).

# DNS Configuration

To enable DNS:

1\. Select DNS from the navigation menu.

<figure><img src="https://docs.telcobridges.com/w/images/7/7b/ConfigureDNS_1.png" alt=""><figcaption></figcaption></figure>

2\. Click Create New DNS Group

<figure><img src="https://docs.telcobridges.com/w/images/b/b1/ConfigureDNS_2.png" alt=""><figcaption></figcaption></figure>

3\. Enter a name for the DNS Group

<figure><img src="https://docs.telcobridges.com/w/images/1/14/ConfigureDNS_3.png" alt=""><figcaption></figcaption></figure>

* Enabled: Enables DNS name resolution support for this group.
* Use Cache: Use DNS name caching for improved performance.
* Cache Expire Time: DNS name cache expiration time.
* Query Timer: DNS query timeout.
* Query Retry Count: DNS query maximum retries before giving up.

4\. Click to Create button

<figure><img src="https://docs.telcobridges.com/w/images/3/30/ConfigureDNS_4.png" alt=""><figcaption></figcaption></figure>

5\. In the new window click to Create New DNS Server

<figure><img src="https://docs.telcobridges.com/w/images/7/7c/ConfigureDNS_5.png" alt=""><figcaption></figcaption></figure>

6\. Enter a name for the new DNS server

<figure><img src="https://docs.telcobridges.com/w/images/b/b5/ConfigureDNS_6.png" alt=""><figcaption></figcaption></figure>

7\. Enter the DNS Server IP address and Select the local IP interface used to send DNS queries.

<figure><img src="https://docs.telcobridges.com/w/images/1/1b/ConfigureDNS_7.png" alt=""><figcaption></figcaption></figure>

8\. DNS server Port, Protocol and local POrt can be configured under Advanced Parameters

<figure><img src="https://docs.telcobridges.com/w/images/e/eb/ConfigureDNS_8.png" alt=""><figcaption></figcaption></figure>

9\. Click to Create button

<figure><img src="https://docs.telcobridges.com/w/images/f/ff/ConfigureDNS_9.png" alt=""><figcaption></figcaption></figure>

10\. Select which interfaces can get FQDN resolved. Only incoming messages coming from those IPs can get FQDN resolved.

<figure><img src="https://docs.telcobridges.com/w/images/5/5f/ConfigureDNS_10.png" alt=""><figcaption></figcaption></figure>

\
You can create local DNS entries from the same menu.

1\. Click to Local Entries and Create New DNS local Entry

<figure><img src="https://docs.telcobridges.com/w/images/4/4e/ConfigureDNS_11.png" alt=""><figcaption></figcaption></figure>

2\. Enter a name for Local DNS and FQDN

<figure><img src="https://docs.telcobridges.com/w/images/a/a8/ConfigureDNS_12.png" alt=""><figcaption></figcaption></figure>

3\. Click to Create button

<figure><img src="https://docs.telcobridges.com/w/images/b/bb/ConfigureDNS_13.png" alt=""><figcaption></figcaption></figure>

4\. Click to Create New DNS local entry record

<figure><img src="https://docs.telcobridges.com/w/images/d/de/ConfigureDNS_14.png" alt=""><figcaption></figcaption></figure>

5 . Enter a name for Local DNS entry

<figure><img src="https://docs.telcobridges.com/w/images/9/9c/ConfigureDNS_15.png" alt=""><figcaption></figcaption></figure>

* IP Address: Address to be resolved.
* Port: Port to resolved by SRV request
* Service: Service for this entry. \_sip.\_udp, \_sip.\_tcp etc..

6\. Click to Create button

<figure><img src="https://docs.telcobridges.com/w/images/b/b2/ConfigureDNS_16.png" alt=""><figcaption></figcaption></figure>


---

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