We are attempting to FTP a file from our iSeries to a Unix system. The secure connection is set up via a VPN tunnel....
Can you offer some best practices to enable the connection without opening ourselves up to security risks?
It sounds like you've already taken some strong measures toward securing your FTP connection. The first and most important step is to realize that FTP is an inherently insecure protocol and must be implemented only in the presence of compensating controls. FTP uses unencrypted connections, leaving both the data you transfer and your credentials exposed to eavesdropping attacks. This can be remedied this through the use of encryption, either by using Secure FTP (SFTP), which tunnels FTP through an encrypted SSH connection, or by using a VPN to encrypt the traffic.
Second, follow normal user security principles. If you're not running an anonymous FTP download service, provide each user with a unique username and strong password that they may use to access your FTP server.
Finally, configure your systems in a secure manner. Ensure that the FTP server is running a modern operating system and has all current security patches applied. Verify firewall settings and ensure that you allow the minimum number of ports from as few destinations as possible while still meeting business requirements.
Dig Deeper on SSL and TLS VPN Security
Related Q&A from Mike Chapple
Cloud compliance issues are no reason for enterprises not to move to the cloud. Expert Mike Chapple explains why, as well as what to keep in mind ...continue reading
The GAO reported on SEC cybersecurity weaknesses, even though the SEC regulates cybersecurity. Expert Mike Chapple discusses the effects of this ...continue reading
Enterprise compliance can be a burden to manage, which is where a PCI ISA can be helpful. Expert Mike Chapple explains how a PCI Internal Security ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.