Question: Is it possible to disable a allow rule security policy in nebula? Answer: To disable an allow rule in Nebula's security policy, navigate to Configure > Firewall > Security policy. You can then disable the specific allow rule you want to modify. Note: "Implicit allow rules" can not be disabled.
Question: How to block the Application which is not listed in App partol? Answer: Those apps might have been developed locally and are not available worldwide, so App Patrol does not include them. You can try blocking them using custom URLs or FQDN objects in the content filter. Note: You can ask the developer for the IP…
Visible NAT Implicit Rules In Nebula 18.00, we’ve introduced a minor but significant enhancement to the firewall's security policy management by making NAT implicit rules visible. This update improves transparency and helps users understand the automatic configurations applied to their network security. Overview of…
Question: How can I set the default policy for clients? What is the default security policy rule for Nebula firewall? Answer: On Nebula > Configure > Firewall > Security policy, click on "Implicit allow rules". You can find the default security policy rules as follows. Allow LAN to Any Allow LAN to the appliance
Question: Can I configure multiple FQDNs in one security policy rule on both destination/source address? Answer: Currently you can set only one FQDN in source/destination in security policy rule on nebula. For destination, wildcard FQDN is supported. You can set one wildcard FQDN in destination.
Create two security policy rules. In the following example, only Geo IP "Taiwan" is allowed to establish L2TP VPN. In the first policy, action: Allow, source: allowed Geo-IP, destination: Device, dst. port: 1701, 4500, 500 In the second policy, action: Deny, source: Any, destination: Device, dst. port: 1701, 4500, 500
The administrator wants to block web GUI access from Venezuela so the following security policy is created. However, GEO-IP blocks internal LAN IPs because the LAN subnet has the same IP range of a certain Geo Region IP. How to solve this issue if it is impossible to change the LAN IP address? Suppose you'd like to block…
There are two ways to locate the server IP. One is through NCC and the other is through nslookup of the server domain. However, do note the IPs might change in terms of system upgrades and new server deployments. * Locate the IP in NCC On NCC, in Help Center > Firewall Information, enlists the ports and services required…
Both the "deny" and "reject" settings will block the traffic. The difference in their behavior is that "deny” will drop the traffic without any response, while the "reject" option will block the traffic and report back to the client that the destination is unreachable.For Example:1. If the firewall is set up to "deny", you…
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