The result of this will be a "internal" zone which permits access to ssh, but only from the two given IP addresses. firewall-cmd -zone=internal -add-service=sshįirewall-cmd -zone=internal -add-source=192.168.56.105/32įirewall-cmd -zone=internal -add-source=192.168.56.120/32įirewall-cmd -zone=public -remove-service=ssh Any sources added to the "trusted" zone will be allowed through on all ports adding services to "trusted" zone is allowed but it doesn't make any sense to do so. It is also highly recommended to created custom rules for any VoIP ports in addition. Warning: don't mistake the special "trusted" zone with the normal "internal" zone. We always recommend that the rule for port 53 DNS traffic is enabled. Instead, try using a different zone such as "internal" for mostly trusted IP addresses to access potentially sensitive services such as sshd. You probably don't want to do this to the "public" zone, though, since that's semantically meant for public facing services to be open to the world. If you want to restrict a zone to a specific set of IPs, simply define those IPs as sources for the zone itself (and remove any interface definition that may be present, as they override source IPs).
You will learn how to tackle a multitude of digital threats by using Filters and Blockers, including Virus Blocker, Spam Blocker, and Spyware Blocker. 123 my intention was that if a source is not listed, it should not be able to reach any service or port Untangle Advanced Configuration - Starting with a detailed description of the capabilities of Untangle as a server security solution, this book will help you to choose the right hardware and successfully deploy Untangle on your network.
I accomplished this on a Win2k box using IPSEC, but it seems that IPSEC is now built-in to windows firewall. I just created this: # firewall-cmd -zone=encrypt -list-allīut i can still reach port 6000 from. I created a rule that Blocks All, but there's no way that I've found to create a rule that will 'override' the block rule and allow 1 or more IP's to get in. The problem above is that this is not a real list, it will block everything since if its one address its blocked by not being the same as the other, generating an accidental "drop all" effect, how would i "unblock" a specific non contiguous set? does source accept a list of addresses? i have not see anything in my look at the docs or google result so far. Heres how you can do that: Under Config > Events > Alerts you will find a default alert rule labeled 'License limit exceeded. add-rich-rule='rule family="ipv4" source not address="192.168.56.105" drop' If you would prefer that these users are blocked from any and all internet access, then you simply need to configure the Untangle to do so. So the end result would be no other machine can access any port or protocol, except those explicitly allowed, sort of a mix of -add-rich-rule='rule family="ipv4" source not address="192.168.56.120" drop' On a linux networked machine, i would like to restrict the set of addresses on the "public" zone (firewalld concept), that are allowed to reach it.