How can I deny, allow, or ignore an entire subnet using Juggernaut Firewall?

Juggernaut Security and Firewall uses CIDR (Classless Inter-Domain Routing) notation rather than the common subnet mask 255.x.x.x when blocking, allowing, or ignoring networks.

For example if you wanted to block the 255.255.255.0 network for IP address 203.0.113.1 you would go to Deny -> Press the Add button on the grid and enter it as 203.0.113.0/24

Refer to the CIDR Subnet Table to find the CIDR equivalent of a decimal subnet mask.

IPv4

CIDR Prefix Total IP Addresses Network Mask
/8 16,777,216 255.0.0.0
/16 65,536 255.255.0.0
/24 256 255.255.255.0
/25 128 255.255.255.128
/26 64 255.255.255.192
/27 32 255.255.255.224
/28 16 255.255.255.240
/29 8 255.255.255.248
/30 4 255.255.255.252
/31 2 255.255.255.254
/32 1 255.255.255.255


IPv6

CIDR Prefix Total IP Addresses
/64 18,446,744,073,709,551,616
/56 256 /64 subnets
/48 65,536 /64 subnets
  • cidr, subnet, deny, allow, ignore
  • 0 Users Found This Useful
この回答はお役に立ちましたか？

Related Articles

How can I raise the open file limit for the login failure daemon?

The login failure daemon can crash if you are monitoring a lot of domains in Plesk and are...

How can I test to make sure that the OS has all the required kernel modules required for Juggernaut Firewall?

Test from the Juggernaut Extension You can run the firewall test by going to Juggernaut Firewall...

How can I adjust the attack triggers used by the login failure daemon?

To Adjust Login Failure Triggers Navigate to Juggernaut Firewall -> Settings -> Login...

Where are the configuration files for Juggernaut Firewall located?

Configuration files are located in the /etc/csf/ directory with the main firewall configuration...

How can I use Juggernaut Firewall to monitor a list of directories?

Enter the Directories You Want To Monitor Navigate to Juggernaut Firewall -> Settings ->...