JCL-Specific Transparent FTP Tunneling or FTP-SFTP Conversion

In this example, transparent FTP tunneling or FTP-SFTP conversion is configured per FTP JCL job using a SYSFTPD DD statement.

Do the following steps:

Copy the /opt/tectia/etc/ssh-socks-proxy-config-example.xml configuration file to /opt/tectia/etc/ssh-socks-proxy-config.xml.

(FTP-SFTP conversion only) If you want to use FTP-SFTP conversion, edit the configuration file and change the value of the action attribute to "ftp-proxy":

  <filter-engine>
     <rule ip-address=".*"
           ports="21"
           action="ftp-proxy"
           profile-id="id1"
           username-from-app="YES"
           hostname-from-app="YES"
           fallback-to-plain="NO" />
  </filter-engine>

Start the SOCKS Proxy if it is not already running.
Create a new FTP configuration file EXAMPLE.SSHFTP.FTPDATA with the following contents:
```
SOCKSCONFIGFILE  EXAMPLE.JCL.SOCKS.CONF
FWFRIENDLY       TRUE
```
Create a new socks configuration data set EXAMPLE.JCL.SOCKS.CONF with the following contents:
```
sockd @=127.0.0.1 0.0.0.0 0.0.0.0
```

Modify your existing FTP JCL to use SOCKS by adding a SYSFTPD DD statement, for example:

//FTP       EXEC PGM=FTP,PARM='company.example.com
(EXIT=8'
//SYSPRINT  DD  SYSOUT=*
//SYSFTPD   DD  DSN=EXAMPLE.SSHFTP.FTPDATA,DISP=SHR
//SYSIN     DD  *
userid   passwd
ascii
get test.file 'USERID.FTP.TEST'
quit
/*