This allows a sort of zero trust TLD management for networks. We now have a neat little rule to block any IP from the firewall group in front of everything else: Next, we can make use of the following endpoint to update the firewall group instead: rest/firewallgroup GET/PUT User defined firewall groups. https://help.ubnt.com/hc/en-us/articles/115005779887-Intro-to-Networking-Network-Address-Translation-NAT-and-the-Internet. Read more on Insights, DNS security topics, and feature updates on the official ScoutDNS Blog. Create a file /etc/dnsmasq.d/50-cloudflared.conf and fill it with the following: Look through all other files within the /etc/dnsmasq.d/ directory, and add a # in front of any lines starting with server=, like so, This step does not need to be completed if you are not using Pihole. DNS-Over-HTTPS is a protocol for performing DNS lookups via the same protocol you use to browse the web securely: .css-2ygcmq{font-weight:var(--chakra-fontWeights-semibold);}HTTPS. Related information Firefox DNS-over-HTTPS This address is displayed on the console's LCM screen (for most users, it is 192.168.1.1). STEP 1) Configure DNS Port Group First configure the group objects within the firewall subtab. In my 'V1' home network, My Ubiquiti Home Network, I had the UniFi Security Gateway and a few other goodies like the UniFi Cloud Key.You can read full details of my previous home setup in the link, but, of course, I did a blog post on how to setup HTTPS on the web UI, Setting up HTTPS on the UniFi Cloud Key. I block all outgoing DNS traffic, and configured r/pihole to use DNSCrypt and DNS-over-HTTPS. Network admins will likely prefer something more robust and complete like we provide here at ScoutDNS. A number of different filtering options can be applied to sort and view only the data needed. Plus it can often improve performance. From the device perspective hes still talking to Google, and theres no forced failure. Whole platforms of IOT and devices are being weaponized by the device and app creators against the owners of the devices and now web browsers and other applications are going down the same road and doing IP lookups that we have no way of seeing and filtering as the owners of the devices and networks in our homes and businesses. DoH stands for DNS-over-HTTPS, a standard published by the IETF. Next we will configure the IP based object for our actual resolver IPs. Though if the firewall will not be providing DNS over TLS service to clients, do not add the pass rule. Selecting Family Filter or Block Adult will also add the Security blocks as well. Object based configuration makes managing systems so much easier. In controller versions 5.9+ and gateway firmware 4.418+ Unifi products started offering internet security settings. If you are using a computer on the same network as your UniFi OS Console, you may directly connect to it: Enter the console's IP address into your web browser. This is done in 4 easy steps. You can verify it is working correctly by visiting the internet.nl DNSSEC test service. After restarting Dnsmasq (and PiHole if applicable), queries should now be fulfilled using the Cloudflare DNS service. Check out DNS threat reports, lists, and analyses. If you want to test your configuration simply run a couple of NSLOOKUP commands from a command prompt: Check out our Cloud Managed on premise DNS Relay that runs on anything from a Linux PC to Raspberry Pi. They help us to know which pages are the most and least popular and see how visitors move around the site. I just double natted with an edgerouter. You could block such IPs:443, but some of those servers use it for both DoH and content. So stopping a truely bad actor is not possible in the overall picture of what is possible. This will control the running of the service and allow it to run on startup. On Sophos Firewall, you can do this by first creating a Filtype definition for DNS over HTTPS, which has application/dns-message as the defined MIME-type, and then adding policy rules to block this file type Going forward, we are looking into providing more automated ways to handle this in the policy. I've been thinking about ways to potentially handle it maybe with snort or suricata rules that check for any communications to sites that have not had a dns lookup on them. It doesn't matter what default DNS service you use as we will be overwriting it soon. Privacy Configuring Networks to Disable DNS over HTTPS At Mozilla, we believe that DNS over HTTPS (DoH) is a feature that everyone should use to enhance their privacy. Select "Ethernet" or "WiFi", depending on your connection type. On a PC with a bash shell (Mac or Linux), install the Go programming language and Go tools per the instructions on golang.org. Remember when we said we were serious about managing activity by Top Level Domains? Monitor DNS layer activity in rich detail. As with the rest of our views, admins can drill down to the specific domains, log data, and view the queries to get more detail. Your browser does not seem to support JavaScript. Allow/Block Lists on ScoutDNS A good 20%+ of our user base operates on Unifi hardware and as such we often get asked about Unifi features and configurations. I recommend to create to rules. In Settings, click "Network & Internet" in the sidebar. To disable inter-VLAN routing between LAN and VLAN2, head to the UniFi Network application and go to Settings > Routing & Firewall > Firewall > Rules > LAN IN1. This is more an attempt to detect known software doing something they have not actually stated they are doing then trying to stop bad stuff. Allow HTTP and HTTPS traffic to the Internet. Applications should be worried about doing their application shit, and not looking up dns stuff.. An intelligent man is sometimes forced to be drunk to spend time with his fools We will start out by configuring a port based object that represents all DNS traffic. But unfortunately, it's only running locally on the device. Applications that want to resolve a domain name to an IP address typically use DNS. DNS-over-HTTPS causes more problems than it solves, experts say, PfSense running on Qotom mini PC I'm not in front my other Roku, but have you checked the hidden wifi menu? DNS over HTTPS Set policy by subnet and log all DNS queries to sites based on internal LAN IP. You add entries into either the allow or block line and can remove them later by clicking the x next to the domain. While preventing content filter bypass is a good reason to manage DNS ports on your firewall, another often overlooked reason is to impede malware that has entered your network from using other outside DNS resolvers. # Read configuration variable file if it is present, [ -r /etc/default/cloudflared ] && . to communicate to an external server over port 53. DoH can increase user privacy and security by preventing eavesdropping and manipulation of DNS data by man-in-the-middle attacks. Bad times. This post will provide an overview on how DNS-Over-HTTPS is an improvement over regular DNS, as well as a guide on how to implement it with a range of configurations, such as: It is the 1st of April, 2018. One of these settings was focused on content filtering. Mozilla already plans to enable DoH by default in the near future with the DoH server of cloudflare. With Unifi, you can manage multiple controllers from a single login, but there is no unified dashboard, reporting or policy duplication and as such this is not a very practical use case where the admin needs to manage more than one location. In this instance we use our default primary and secondary ScoutDNS IPs but you can configure any resolvers that you may want to allow on your network. They are as follows: Devices > [select USG] > Config > WAN > Preferred/Alternate DNS Settings > Networks > [click Edit] > DHCP Name Server (Manual) The first one is the setting for the router that decides what DNS it uses itself. Initially called DNS Filters, which gives us a clue into how it actually filters, the UI now displays this section simply as Content Filtering. Sands43 4 yr. ago This would be called Network Address Translation or NAT. Create a new group called "Block_Group". It would frighten the hell out of most device makers today if that happened and we got shine a light on the data they are sending out of our networks about us. This is an unofficial community-led place to discuss all of Ubiquiti's products, such as the EdgeRouter, UniFi, AirFiber, etc. This is a small guide of what you can do to strengthen your UniFi Dream Machine (UDM) security with settings not found in UDM GUI. 2. Everything from multiple options for Safe Search and Three YouTube modes, to 6 categories of threats, 54 categories of content, and 16 categories of applications. Our dashboard gives you a clear understanding of what domains get requested by each of your devices. NoScript). Forcing all DNS through a DNS firewall or RPZ will insure that all related traffic is properly vetted. The fact that over 1588+ TLDs exist with new ones added every year, and that a large percentage of known and unknown threats occur outside the traditional .com/.nets of the web, managing TLDs by permitted lists allows admins to easily enable only the top level domains needed for their business use case. In this post we will discuss why ScoutDNS is such a good option for Unifi networks users. Check out DNS threat reports, lists, and analyses. I dont know what capabilities the USG has, but first Id see if you could write a source NAT rule to rewrite the destination IP of any packet headed to 8.8.8.8 or the like back to your piHole. set service dns forwarding dhcp <interface> To manually define the DNS servers, use the name-server command. I have started doing this - but this list is going to grow very quickly and get very difficult to handle.. And doesn't stop the ability to just use doh to an unknown server, etc. Update the permissions for the configuration file and cloudflared binary to allow access for the cloudflared user. Create port based object for all DNS traffic curl -sSL https://install.pi-hole.net | sudo bash. Shouldn't be done at the application level. The people have awoken, ready to discover the most cringeworthy April Fools day "jokes" from the usual tech giants. The Ubiquiti USG runs on mips architecture. 2. gain access to router admin page, change dns. The UniFi CloudKey Controller itself (this is a special case, which I'll cover) The Problem. Since DNS-over-HTTPS and DNS-over-TLS are becoming more common, I would like to know if it is possible to intercept that kind of traffic to redirect it to my Pi-hole install for filtering purposes. We will start out by configuring a port based object that represents all DNS traffic. How does DoH work? Any way to TRULY block DNS over https (doh). The term "DNS over HTTPS (DoH)" has been hitting the headlines in the past month: Google announced its general availability in June, and in July, Mozilla was nominated for "2019 Internet Villains" by the UK Internet Services Providers' Association (ISPA) for introducing DoH to Firefox (the nomination was later withdrawn due to a global outcry). ScoutDNS offers the ability to have multiple separate Allow/Block lists designed as objects. It also blocks proxy and VPN domains that are used to bypass the filters. According to Unifi documentation the filtering options are as follows: Blocks access to phishing, spam, malware, and malicious domains. A collection of how to, demos, and new feature videos. I haven't lost my mind. To force them to use my DNS settings, is it as easy as blocking DNS queries to the google servers in the WAN OUT section of the firewall? You can now enjoy the extra security, privacy and speed of DNS-Over-HTTPS, as well as some nerd-cred for running an experimental DNS protocol. enter a unique name for the route on the "Create New Route" screen, for instance, "Block Github 1". To prevent this from conflicting with our manually made changes, we can edit the PiHole configuration file and remove all references to DNS servers. On ScoutDNS admins have granular control over what is blocked or allowed. If you have gotten to this point, you should now have a working DNS-over-HTTPS service running. USG only supports this via command line, as far as I know. Monitor DNS layer activity in rich detail. PiHole will automatically regenerate the dnsmasq configuration files when reloaded. It's hard or even impossible to block DoH protocol on a router. There is no way to select specific categories or chose level of safe search or YouTube restrictions. : encryption should never be hidden from the owner of a device. Here we are downloading the precompiled binary and copying it to the /usr/local/bin/ directory to allow execution by the cloudflared user. Detect and Block (IPS): Detected threats will result in the . With ScoutDNS you will know. 221. Right click the Network or WiFi icon, and left click Network and Internet Settings 2. Object based configuration makes managing systems so much easier. This option is the default when using the Basic Setup wizard with DHCP selected as the Internet connection-type. Note that it does not block adult content. It looks like they have Google's DNS servers hard coded into the more recent versions of their firmware. DNS-over-HTTPS is applied at the application layer (two layers removed from the Internet layer) while DNS-over-TLS is applied at the transport layer (one layer removed from the Internet layer). Create an account to follow your favorite communities and start taking part in conversations. Cloudflare have released 1.1.1.1, which completely blows away all previous attempts at a global DNS service out of the water. Setup UniFi VLANs. Copy the following init script to /etc/init.d/cloudflared. How to setup DNS for Unifi Security Gateway There are two places where you can set the DNS servers for the USG. For OpenDNS the settings are: DNS Server : 208.67.222.222 Alternate DNS Server : 208.67.220.220. I also made a new IPv4 port group called "DNS (53 + 853)" for ports 53 and 853. DoH uses port 443, which is the standard HTTPS traffic port, to wrap the DNS query in an HTTPS request. How do I prevent users from changing their DNS to bypass filtering?. Who are they trying to fool?". Then, retrieve and build the cloudflared binary for the mips architecture. Download the installer package, then use apt-get to install the package along with any dependencies. I'm using DNS-over-HTTPS (ok, not TLS, but same kind of thing) on my EdgeRouter Lite by just downloading and installing the dnscrypt-proxy precompiled bin from github and setting it to run on startup. for "Network", enter an IP address from step 1, then slash, then 32. this translates to "the route applies to this . If by chance you do have the tools installed, you can use the dig command from the PiHole/Linux section of the guide to ensure it is working. All in all the options for Unifi content filtering are best suited for home network use, or users who do not need granular control and reporting. Scroll down and click Edit next to DNS server assignment 4. USG only supports this via command line, as far as I know. I have started doing this - but this list is going to grow very quickly and get very difficult to handle.. And doesn't stop the ability to just use doh to an unknown server, etc. If you prefer Google then then: DNS Server : 8.8.8.8 Alternate DNS Server: 8.8.4.4. In the following sections we will be covering how to install and configure this tool on PiHole, Debian/RHEL/Fedora and Ubiquiti USG devices which use dnsmasq forwarding. Then run the binary with the -v flag to check it is all working. I'm attempting to force Roku DNS queries through a specific DNS server. Or is there more I need to do? It helps you quickly and easily block unwanted sites. Change to the boot script directory with cd /mnt/data/on_boot.d Using vi or any other editor you may have installed, create a new file to run on boot. 3. Run the following dig command, a response should be returned similar to the one below.
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