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Technical Note: Error ’Unable to establish the VPN connection. The VPN server may be unreachable. (-5)’ on FortiClient with SSL VPN
Viewed 1515 times since Mon, Aug 7, 2017
FortiClient FortiGate v5.4 Description   This article provides the solution when the error "Unable to establish the VPN connection. The VPN server may be unreachable. (-5)" is obtained in FortiClient trying to connect to the SSL VPN and it is... Read More
Fortigate Hairpin NAT
Viewed 376 times since Fri, Aug 4, 2017
This article describes the configuration needed for Hairpin NAT.Scenario: Internal user ("PC" in the follow diagram) needs to access Server (10.10.10.10)     In this scenario, both PC and Server are behind FortiGate and PC wants to connect to... Read More
How to configure DNS based FortiGuard web filtering with FortiOS v5.4
Viewed 168 times since Wed, Aug 2, 2017
Products FortiGate v5.4 Description This article provides a sample configuration for DNS based FortiGuard web filtering.In FortiOS v5.2 the DNS web filtering is one option of ‘Web Filter’ profile.  In FortiOS v5.4 this feature has moved... Read More
Fortigate SSL/TLS Handshake fails
Viewed 148 times since Wed, Dec 6, 2017
In some circumstances when using WiFi clients browsing to SSL/TLS server hosts you will see "TLS timeout" or "TLS handshake error"   This can be caused by setting the WiFi interface on the fortigate to default (1500) As the WiFi encryption overhead... Read More
Technical Note: DNS resolution not working when DNS Server configured to ’Same as Interface IP’
Viewed 99 times since Wed, Aug 9, 2017
Technical Note: DNS resolution not working when DNS Server configured to 'Same as Interface IP' Products ProductsFortiGate v5.2 FortiGate v5.4 FortiGate v5.6   Technical Note: DNS resolution not working when DNS Server configured to &... Read More
Technical Note: Custom NTP server configuration
Viewed 98 times since Fri, Aug 11, 2017
Products FortiGate v5.0 FortiGate v5.2 FortiGate v5.4 FortiGate v5.6 Description   This article provides an example of the configuration of a custom NTP server via CLI. Solution   A custom NTP server can be configured via CLI as follows: config... Read More
Fortigate DC Replication RPC port 135 Session-Helper
Viewed 68 times since Wed, Dec 6, 2017
Symptom:   DC replication fails between disparate networks. The Fortigate session helper tries to intercept and control this service Solution: con sys session-helper show Look for these other two entries   edit 17 set name dcerpc set protocol 6 set... Read More
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