My user is unbale to access FTP server from ssl vpn which protocol need to add in firewall policy
when I add all services to the firewall policy, the SSL VPN user able to access FTP server but when i add FTP services in firewall policies the user unable to access FTP Server
is there any other services need add in firewall policy to access FTP server
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You can also capture wireshark log by following the below article
https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-Packet-Capture-on-FortiOS-GUI/ta-p/1...
Please run the following command in the firewall while connecting to the FTP server to identify the ports/ protocols and then allow them in your firewall policy
diagnose sniffer packet any 'host SSL_VPN_USER_IP and host FTP_SERVER_IP' 4 0 l
Traditionally these are port 21 for the command port and port 20 for the data port.
You can also capture wireshark log by following the below article
https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-Packet-Capture-on-FortiOS-GUI/ta-p/1...
You can also use following useful KB articles for troubleshooting steps:
https://community.fortinet.com/t5/FortiGate/Technical-Tip-FortiGate-debug-SSL-VPN-daemon/ta-p/214433
https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-SSL-VPN-Troubleshooting/ta-p/189542
And following debug flow commands:
diag deb reset
diag deb flow filter clear
diag deb flow trace stop
diag deb en
diag deb flow show fun en
diag deb flow filter addr x.x.x.x (IP that you obtained from ssl vpn pool)
diag deb flow filter port 21
diag deb flow trace start 9999
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