vendor lock-in → exit plan
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Firewalls

Best nftables / Linux alternatives

Ranked by migration effort. Open any path for a full cost model and plan.

1
Palo Alto Networks
Per-appliance + subscriptions · commercial
Low effort
~12 wks →
2
Fortinet FortiGate
Per-appliance + FortiGuard · commercial
Low effort
~12 wks →
3
Check Point
Per-gateway + blades · commercial
Low effort
~12 wks →
4
OPNsense
Free (open source) · open source
Low effort
~12 wks →
5
pfSense
Free CE / Plus · open source
Low effort
~12 wks →
6
Cisco Secure Firewall (ASA/FTD)
Per-appliance + subscriptions · commercial
Low effort
~12 wks →
7
SonicWall
Per-appliance + security bundle · commercial
Low effort
~12 wks →
8
IPFire
Free (open source) · open source
Low effort
~12 wks →