![]() ![]() So you do not need to have whole port range opened all the time, even when not in use. Some external firewalls are able to monitor FTP control connection and automatically open and close the data connection ports as needed. Learn how to open ports on Microsoft Azure.Ĭlick Apply action to submit your settings. Any time you change this range, you will need to restart FTP service. Use a Data Channel Port Range box for that. In such case, you need to tell the FTP server to use only the range that is opened on the firewall. You won’t probably want to open whole default port range 1024-65535. When behind an external firewall, you need to open ports for data connections (obviously in addition to opening an FTP port 21 and possibly an implicit TLS/SSL FTP port 990). Specify your server’s external IP address.įor Microsoft Azure Windows servers you will find the external IP address in Public IP address section of the virtual machine page.In IIS Manager, open FTP > FTP Firewall Support.If your server is behind an external firewall/ NAT, you need to tell the FTP server its external IP address, to allow passive mode connections. New-SelfSignedCertificate -FriendlyName "FTP Server" -CertStoreLocation cert:\localmachine\my -DnsName Servers behind external Firewall/NAT 2 To create a certificate with a correct key usage, use New-SelfSignedCertificate PowerShell as an Administrator: Self-signed certificates created by old versions of IIS Manager do not work with FTPS clients that check for key usage violations. Click on Create Self-Signed Certificate action. ![]()
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