Description |
This article describes how to enable essential services on FortiGate, such as rating services, FortiGuard, and FortiCloud services, without dependency on system DNS configuration.
In certain restricted deployment scenarios where system DNS should not be configured or an internal DNS server that is hosted remotely and reachable via an IPsec tunnel, any impact on the tunnel can cause immediate failure on URL and DNS rating services, affecting services that require FortiGate to connect with FortiGuard or FortiCloud.
By using DNS database entries with forwarders for essential Fortinet services, FortiGate can continue to function optimally even when system DNS is unavailable.
The following domains provide rating and FortiGuard services to FortiGate: fortiguard.net, forticloud.com, fortinet.net, fortinet.com |
Scope | FortiGate. |
Solution |
2. Configure DNS Forwarding for Fortinet domains:
Diagnostics and verification. DNS stats:
diagnose test application dnsproxy 2 worker idx: 0 worker: count=1 idx=0 retry_interval=500 query_timeout=1495 DNS latency info: vfid=0 server=96.45.45.45 latency=1 updated=3780 SDNS latency info: DNS_CACHE: alloc=2, hit=2 RATING_CACHE: alloc=0, hit=0
Dump DNS setting:
diagnose test application dnsproxy 3 worker idx: 0 VDOM: root, index=0, is primary, vdom dns is enabled, pip-0.0.0.0 dns_log=1 dns64 is disabled DNS servers: <----- No DNS Servers configured. SDNS servers: ALT servers: Interface selecting method: auto Specified interface: FortiGuard interface selecting method: auto FortiGuard specified interface:
DNS cache: FortiGuard service hostnames are fetched from DNS forwarder servers.
diagnose test application dnsproxy 7 vfid=0, name=securegip.fortinet.net, ttl=3840:3620:1580 12.34.97.18 (ttl=10545) 173.243.138.96 (ttl=10545) vfid=0, name=update.fortiguard.net, ttl=4712:3205:293 173.243.138.71 (ttl=61172) 149.5.232.66 (ttl=61172) 12.34.97.16 (ttl=61172) CACHE num=2
Dump DNS database:
diagnose test application dnsproxy 8 vfid=0 name=fortinet.net domain=fortinet.net ttl=86400 authoritative=0 view=shadow type=primary serial=1497823940 refresh=0 forwarder(s): 96.45.45.45 96.45.46.46 source-ip(s): 0.0.0.0 :: SOA: fortinet.net (primary: dns.fortinet.net, contact: host@fortinet.net, serial: 1497823940)(86400)
vfid=0 name=fortinet.com domain=fortinet.com ttl=86400 authoritative=0 view=shadow type=primary serial=947308521 refresh=0 forwarder(s): 96.45.45.45 96.45.46.46 source-ip(s): 0.0.0.0 :: SOA: fortinet.com (primary: dns.fortinet.com, contact: host@fortinet.com, serial: 947308521)(86400)
vfid=0 name=forticloud.com domain=forticloud.com ttl=86400 authoritative=0 view=shadow type=primary serial=1551432320 refresh=0 forwarder(s): 96.45.45.45 96.45.46.46 source-ip(s): 0.0.0.0 :: SOA: forticloud.com (primary: dns.forticloud.com, contact: host@forticloud.com, serial: 1551432320)(86400)
vfid=0 name=fortiguard.net domain=fortiguard.net ttl=86400 authoritative=0 view=shadow type=primary serial=942777948 refresh=0 forwarder(s): 96.45.45.45 96.45.46.46 source-ip(s): 0.0.0.0 :: SOA: fortiguard.net (primary: dns.fortiguard.net, contact: host@fortiguard.net, serial: 942777948)(86400)
Web Rating services:
diagnose debug rating Num. of servers : 29 Protocol : udp Port : 8888 Anycast : Disable Default servers : Included
-=- Server List (Mon Jul 28 06:26:59 2025) -=-
IP Weight RTT Flags TZ FortiGuard-requests Curr Lost Total Lost Updated Time 210.7.96.12 30 92 9 707 0 0 Mon Jul 28 06:25:40 2025 210.7.96.14 30 92 9 707 0 0 Mon Jul 28 06:25:40 2025 210.7.96.13 30 92 9 707 0 0 Mon Jul 28 06:25:40 2025 210.7.96.11 30 92 9 708 0 1 Mon Jul 28 06:25:40 2025 83.231.212.84 110 151 1 708 0 1 Mon Jul 28 06:25:40 2025 83.231.212.85 110 151 1 707 0 0 Mon Jul 28 06:25:40 2025
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