FTP client subcommand
The SECOpen FTP client subcommand
opens a secure control connection to an FTP server using the specified security
option. The syntax of this subcommand is:
SECOpen systemname [portnumber] [security_option ]
Note: SOpen is a synonym for SECOPEN.
- systemname
- Enter the name or Internet address of the remote system.
- portnumber
- Enter the port number for this connection.
Notes: - If this parameter is omitted and (SSL is specified, the port number 21
will be used.
- If this parameter is omitted and (IMPLICIT is specified, then port number
990 is used.
- If both the port number and the security_option are omitted, then port
number 21 and (SSL are assumed.
security_option
Specify the type of security to
be used.
- (SSL
- Uses a secure SSL connection to the FTP server. The AUTH (Authorization)
server subcommand is used when making the connection.
- (IMPLICIT
- Uses an "implicit" SSL or TLS secure connection to the FTP server. An
"implicit" SSL connection is made without sending the AUTH, PBSZ, and PROT
sever subcommands to the server. In this case, the server must be configured
to expect an SSL/TLS connection negotiation to occur for the specified port
number.
For the "implicit" SSL case, the server will act as if the client
had sent these subcommands with the parameters shown below:
Note: If the security_options parameter is not specified, then
(SSL will be assumed. When the port number used is 990, then (IMPLICIT is
assumed.