Nagios Fortigate is one of the most reliable NGFW. We’ll go over it in greater detail in this article.

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About Nagios Fortigate

The basic functionality and requirements are easily met by the Nagios Fortigate firewall, which is one of the market leaders in NGFW. There were a few additional factors that influenced our decision to use Fortigate as our primary firewall.

When it comes to load balancing for normal Internet traffic, Fortigate has a very refined and functional SD-WAN solution. SD-WAN – Fortigate’s USP is load balancing of Internet traffic, which sets it apart from the competition.

It doesn’t matter if we have three or more Internet links, multiple Subnets/user segments to distribute, or bandwidth load balancing for links and users. Monitoring Internet / MPLS links based on SLAs makes it even easier to choose links based on performance.

Check Nagios Fortigate Status

This script which we use for Nagios Fortigate is a modification of “Check Fortigate CPU load” Using this CPU and RAM usage, as well as monitoring the active sessions. Moreover, It can produce performance data.

SNMP must be enabled in both the appropriate network interface and the Config section of our FortiGate config for this script to work. “Public” should be the community’s name. On the Linux side of things, the “snmp” package should also be installed.

Usage of Nagios Fortigate

Usage: check_fortigate_status -H host -m mode [-C community] [-M X] [-w XX] [-c XX]

Options:

-H, –host hostname (or IP address)
Examine the interface on the specified host.

-m, –mode STRING
What should we look for?
The following are acceptable options:
CPU: displays the amount of time spent on the computer.
memory: This function returns the amount of memory used.
sessions: Returns the active IP session count.

-C, –community STRING
Default SNMP community string: public

-M, –modus X
0: No alarms, just monitor
1: Excessive thresholds will set off alarms.
2 is the default.

-w, –warn XX
Nagios threshold for warnings
Default: 80 percent for the “memory” and “CPU” modes.
For the “sessions” mode, an integer value.
1500 is the default value.

-c, –crit XX
Critical threshold in Nagios
The default value for “memory” and “CPU” modes is 90%.
For the “sessions” mode, an integer value.
2000 is the default value.

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Conclusion

In short, the basic functionality and requirements are easily met by the Nagios Fortigate firewall.