openNAC Analytics Architecture

openNAC Enterprise solution is the next step in the evolution of data Network Access Control Solutions. openNAC is a simple but feature-rich and flexible solution to build and control enterprise Network Access, which combines existing OpenSource technologies with advanced features for multi-tenancy, automatic provision and elasticity. openNAC follows a bottom-up approach driven by sysadmins, devops and users real needs.

Sizing an openNAC Analytics Instances

The dimension of Network Access solution infrastructure can be directly inferred from the expected workload in terms of users, IPs, types of authentication or use cases deployed that the NAC must sustain. The workload may be complicated to estimate, but this is a crucial exercise to build an efficient NAC Architecture.

The hardware specifications for the openNAC Analytics are:

Resources	Minimun	Recommended configuration
Memory	16GB	64 GB
CPU	8 CPUs	16 CPUs
Disk Size	200 GB	According with deployment
Disk Type	SSD	SSD
Network	2 NIC	2 NIC

Note

Depending of number of users and its behaviour, types of authentication, use cases, and retention period, Disk Space should be adapted. Remember that events are collected in indexes to be searchable and the data amount saved depends of disk space. Please ask to openNAC Team or any authorized partner to create an appropiate disk sizing.

Note

Two network interfaces are used for best practices of deployment, one interface is used for administration and the other one for service.