In some environments, the local network is protected from the rest of the internet by means of a firewall or proxy server. If your network is protected with a firewall or proxy which block FTP transfers, you can enable FTP transfers by specifying the correct parameters for the firewall. For this you need information about the firewall or proxy server setup from your network administrator.

 Proxy type
 You can select how you want to access the internet. You have the following options:
 

•No proxy Z-FTPcopy establishes a direct connection to the internet without using a proxy server. Use this connection type for internal FTP servers as well.

•SOCKS4 Proxy Firewall  Use a SOCKS4 proxy server.

•SOCKS5 Proxy Firewall Use a SOCKS5 proxy server. You can also specify a username and password. If no login is required, leave these field empty.

•SOCKS4a Proxy Firewall

Use a SOCKS4a proxy server. You can also specify a username and password. If no login is required, leave these field empty. The difference between SOCKS4 and SOCKS4a is the ability of the proxy server to access domain adresses. Microsoft uses SOCKS4a. Use this type of proxy server if the client computer is not able to resolve IP addresses to domain addresses.

•WEB Proxy (with CONNECT command)

Use the specified HTTP proxy server. This type of proxy server usually utilizes port 80 or 8080. NOTE: If you use this type of proxy server, you can only work in PASV (passive) mode.

Proxy
If you use a proxy server, specify the name or IP address of the server here.

Port
Enter the port number of your proxy server here. It is used for all FTP connections. Most proxy servers use port 21, but SOCKS servers use port 1080.

Login
If your proxy server requires a username and you are using the access types "OPEN", "SITE" or "SOCKS4", you can specify the username here. Otherwise, leave this field empty.

Password
If you have selected the access type "UserID = userid@site", you can enter a password for your proxy server here. Otherwise, leave this field empty.

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