Dynamic Dns Pfsense Time Interval

Aug 16, 2013  Dynamic DNS Explained. Dyanmic DNS (DDNS) is a method of automatically updating a name server in the Domain Name System (DNS), often in real time, with the active DNS configuration of its configured hostnames, addresses or other information. The term is used in two different ways. DDNS providers allow the registeration and creation of Fully Qualified Domain Names (FQDN) that can be mapped to home or branch office Internet connections without cost. This eliminates the need for a static IP address, since the DDNS provider will automatically update its DNS records with your dynamic IP address every time it changes. Or maybe you're just looking to use DNS servers that support DNSSEC. Whatever your reason is, configuring the use of public DNS servers in pfSense is quite easy. Read this guide and find out how. Log into pfSense. Open your web browser and log into your pfSense system. Pick Your DNS Servers. Now you'll need to decide which DNS servers you'll be.

Posted by4 months ago

Hello,

I recently setup OpenVPN on my PFsense box (Ver. 2.4.4-p1). VPN works fine but when connected, I cannot access my PFsense gateway (10.0.0.1) via DDNS. DDNS works fine if I am on a device on the local network. It sounds to me that this is some firewall issue but I don't know what rule I need to create to resolve this. I only want to be able to access the PFsense gateway via DDNS on the local network and VPN.

Dynamic Dns Pfsense Time Interval Calculator


System < Gen. Setup < Domain is set as my DDNS domain

OpenVPN < Servers < IPv4 Tunnel < 10.0.10.0/24

OpenVPN < Servers < Redirect IPv4 Gateway < Checked

Dynamic Dns Pfsense Time Interval Map

OpenVPN < Servers < DNS Default Domain < DDNS Domain

OpenVPN < Client Export < Host Name Resolution < DDNS Domain


ipconfig -all log:

Ethernet adapter Ethernet 4:


Connection-specific DNS Suffix . : DDNS Domain

Description . . . . . . . . . . . : TAP-Windows Adapter V9

Physical Address. . . . . . . . . : XX-XX-XX-XX-XX-XX

DHCP Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : XXXX::XXXX:XXXX:XXXX:XXXX%10(Preferred)

IPv4 Address. . . . . . . . . . . : 10.0.10.2(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Lease Obtained. . . . . . . . . . : Wednesday, February 6, 2019 7:25:25 PM

Lease Expires . . . . . . . . . . : Thursday, February 6, 2020 7:25:25 PM

Default Gateway . . . . . . . . . :

DHCP Server . . . . . . . . . . . : 10.0.10.254

DHCPv6 IAID . . . . . . . . . . . : 167837473

Pfsense dns not working

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-23-91-FD-6B-60-57-18-EF-F3-DF

DNS Servers . . . . . . . . . . . : 209.18.47.62

209.18.47.61

NetBIOS over Tcpip. . . . . . . . : Enabled


Looking at the firewall logs, when I try to go to my DDNS Domain over VPN, PFsense logs a WAN block:

Feb 6 19:31:38 WAN Default deny rule IPv4 (1000000103) xxx.xx.xx.xxx:58571 (mypublicIP):443TCP:S


If you need some more info let me know and i'll provide it. Thank you for any help in advance.

8 comments
Posted by2 years ago
Archived

Recently implemented egress filtering and everything worked except NTP.

What I tried was:

  1. setup host aliases to pool.ntp.org, time.nist.org & time.google.com

  2. setup port alias to port 123

  3. setup LAN rules allowing source LAN NET:any -> destination NTP_SERVER:NTP_PORT

After doing this, I was unable to query any of the NTP servers (for example ntpdate -q pool.ntp.org).

I changed the rule to source NET LAN:any -> any:NTP_PORT and NTP started working again. I suspect the problem may lay in how ntp servers use DNS, but I am not sure how to proceed.

Dynamic Dns Pfsense Time Interval Problems

Any advice would be appreciated.

17 comments
Posted on  by  admin