What happens is: a client sends a DNS request with EDNS options turned . Let's review how DNS requests work with DNS Proxy When a host in the Isolated zone (192.168.99./24) makes a DNS request for sample.aws.com, the request is . Configure HA Settings. Decryption Settings: Forward Proxy Server Certificate Settings. PAN-OS Administrator's Guide. Use Case 1: Firewall Requires DNS Resolution. Problem 1: We have a handful of users who use GP to VPN to our network and, when needed, connect to an outside vendor's VPN . Device -> Setup -> Services -> DNS Settings. When this setting is enabled, the firewall listens on port 53 and forwards DNS requests to the configured DNS servers. In response to Farzana. Review the DNS servers configuration to make sure that the settings are appropriate for your environment. Networking. Select Save. If you want to use the proxy, you need to choose the DNS proxy object option at the above configuration screen. In your scenario of resolution of Azure hostnames from on-premises computers, the private DNS zone could not help, you need to use your own DNS server for the internal name resolution in this link. Device > Log Forwarding Card. The Palo Alto firewall has a feature called DNS Proxy. So if your dns proxy is on a loopback in the untrust zone, the log you attached does not match your dns proxy. fecal_destruction 8 mo. Just imagine that 1000 or 100 000 IPs are at your disposal. DNS. PAN-OS Administrator's Guide. . Unfortunately, the mechanism described above is not working as it should for our case with PAN-OS dns-proxy. Device > High Availability. The bug details. The DNS proxy is hosted on ae1 (IP 192.168.1.1, running DHCP, DNS, gateway ip), which is a LLDP of eth1/6 and eth1/8 to a Cisco SG500 switch. 01-08-2018 01:12 AM. Device > Config Audit. palo alto dns proxy from buy.fineproxy.org! Did you configure your clients to use the IP of your DNS proxy interface . Options. To configure the DNS proxy rule to work as expected, the domain name should have a the wildcard ('*') character in front of it. However, unrelated or unneeded proxy services increase the attack vector surface and add excessive . Configure a DNS Proxy Object. Sounds like an issue you can resolve using 'service routes' in the device tab. edit. The log you attached shows the source to be an internal IP in the trust zone going out to untrust 8.8.4.4. IPv6 is not enabled on ae1. Tight integration with Palo Alto Networks Next-Generation Firewalls gives you automated protections, prevents attackers from bypassing security measures and eliminates the . About six months ago, we upgraded our GP clients from version 2.0.2 or 4.0.x to 5.0.8, and most are now on 5.2.3. Decryption Settings: Certificate Revocation Checking. I am using DNS Proxy on a PA-220, running 8.1.2, and it seems that ipv6 is causing DNS issues for clients. Note that the connections from the Palo Alto to the DNS servers are established via IPv6 though the bulk of DNS lookups is still IPv4 (A records). DNS Security gives you real-time protection, applying industry-first protections to disrupt attacks that use DNS. 40% more DNS-layer threat coverage than any other solution. We've noticed some DNS issues with some specific situations since the upgrade from 2.0.2 or 4.0.x. On the CLI: > configure Verify the configuration by going to the DOS command line and setting the server to be the interface of the ethernet1/3 of the Palo Alto Networks firewall. Device > Password Profiles. Otherwise the requests will not match the rule. DNS Queries Failing over GlobalProtect VPN. VPN Session Settings. I then ping google.com (either continuouly or specifying a ping count of 5) and it works 100%. Then you need forward queries to your DNS proxy server in the corresponding virtual network, the proxy server forwards queries to Azure for . These are the "domain names" I configured. palo alto dns proxy not working - Proxy Servers from Fineproxy. The Palo Alto Networks security platform can act as a DNS proxy and send the DNS queries on behalf of the clients. Palo Alto DNS Proxy ipv6 issue. The issue: I commit and immediately after I test pings from the CLI to: 8.8.8.8 sourcing from the outside interface and its sucessfully. On the client side, configure the DNS server settings on the clients with the IP addresses of the interfaces where DNS proxy is enabled. DNS. Networking. An option to allow the Palo Alto networks firewall to proxy DNS queries based on domain.http://www.commsolutions.com/index.php/partner/palo-alto-networks The first lines are the well-known legacy IP reverse zones . High-Quality Proxy Servers Are Just What You Need. Furthermore, this DNS Proxy Object can be used for the DNS services of the management plane, specified under Device -> Setup -> Services.However, there was a bug in PAN-OS that did not process the proxy rules and . Normally it is used for data plane interfaces so that clients can use the interfaces of the Palo for its recursive DNS server. By default, DNS Proxy is disabled. We are running into any issue with DNS where the two DNS servers we push down via the VPN are able to resolve names. DNS queries that arrive on an interface IP address can be directed to different DNS servers based on full or partial domain names. Under device-->services tab I have entered for DNS server settings (8.8.8.8) primary and 8.8.4.4 (secondary). This is the configuration of my DNS Proxy with one proxy rule for the reverse lookups. Important Considerations for Configuring HA. Under Settings, select DNS settings. The Palo Alto Networks Next-Generation Firewall (NGFW) supports DNS Proxy. However, if we attempt to resolve names against any other DNS server in our environment we get "Non-existent domain." The part I am struggling to understand is that when I run a pcap . When you configure the firewall as a DNS proxy, it acts as an intermediary between hosts and DNS server(s). Note: The Palo Alto Networks firewall can also perform reverse DNS proxy lookup. ago. The example shows a DNS proxy rule where techcrunch.com is forwarded to a DNS server at 10.0.0.36.
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