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Security / IBM i (OS/400, i5/OS)

The Secure Shell (SSH) is a popular way for administrators to securely connect to IBM i, but it’s likely you don’t want just anyone using SSH. Carol discusses how you can control which users are allowed to use SSH.

By Carol Woodbury

SSH clients are readily available from the Internet, so unless you’re controlling what can be installed on your users’ desktops, an SSH client such as PuTTY can be download, installed, and in use in just minutes. One of the popular features of most SSH clients is the file transfer capability. The secure connection capabilities of SSH clients provide an alternative to unencrypted FTP connections. This feature may not seem like a security exposure and shouldn’t be if you’ve implemented object-level security. But if you’re like many IBM i organizations that haven’t taken this step or rely on exit point technologies to secure your critical files, you’ve got an issue. (Note: IBM has not provided an exit point for the SSH daemon, and attempting to control access via the Sockets exit is tenuous at best.)

Read more ...

It’s time to set the record straight about encryption on IBM i.

By HelpSystems

Editor's note: This article introduces the January 2021 Webinar: 5 Myths About Encryption on IBM i, which is On-Demand and available to download and view from the MC Webcast Center.

Strong encryption is more important than ever, with cyberthreats growing in number and sophistication every day. But most IBM i organizations are not encrypting their IBM i database. 

Read more ...

File shares are what make the IFS, or part of the IFS, available for viewing or manipulation via the network. You use file shares when you want all users on the network to have access to something. Many organizations define file shares to allow users to map a drive and easily drag and drop documents to or retrieve them from a directory on IBM i.

By Carol Woodbury

Editor's Note: This article is excerpted from chapter 7 of IBM i Security Administration and Compliance: Third Edition, by Carol Woodbury.

It’s important to note that although an individual file or the entire root directory may be shared on the network, users still need the appropriate authority to a directory or file to perform the intended request. Just because a file is shared doesn’t mean everyone can read it. That ability is still determined by the object authority settings on the directory or library being shared. (Yes, you can share a library!)

Read more ...

The TRs for IBM i V7R3 and V7R4 have some very cool stuff. Carol gives you a tour.

By Carol Woodbury

Yes, once again the IBM i development team has provided us with new features that will help make security administration easier. You can find information on all of the new features of V7R3 TR10 here and V7R4 TR4 here, but I thought it might be helpful to provide examples of how and why I’ll use four of these new features.

Read more ...

Despite the many options IBM has provided to protect your systems and data, many organizations still struggle to apply appropriate security controls. 

By HelpSystems

Editor's note: This article introduces the March 2021 Webinar: Lessons Learned from IBM i Cyber Attacks, which is On-Demand and available to download and view from the MC Webcast Center.

In this webinar, IBM i security expert and IBM Champion Robin Tatam explores cyber attacks on IBM i. You'll get insight into how the criminals accessed these systems, the fallout from these attacks, and how the incidents could have been avoided by following security best practices.

Read more ...

Gain efficiency and flexibility using these new techniques for managing user profiles and their attributes.

By Carol Woodbury

I realize that it’s hard to change the way you do things when the method you’re using is working. But using the techniques I’m about to describe provide great flexibility and may allow you to streamline some processes. So rather than clicking this article closed, read on to see if you can pick up a helpful tip or two.

Read more ...

Here’s the harsh reality: cybersecurity pros have to get their jobs right every single day, while an attacker only has to succeed once to do incredible damage.

By HelpSystems

Editor's note: This article introduces the March 2021 Webinar: The Biggest Mistakes in IBM i Security, which is On-Demand and available to download and view from the MC Webcast Center.

Whether that’s thousands of exposed records, millions of dollars in fines and legal fees, or diminished share value, it’s easy to judge organizations that fall victim. 

Read more ...

To manage the authorities to objects in the IFS, you can use either green-screen CL commands or the Navigator for i interface.

By Carol Woodbury

Editor's Note: This article is excerpted from chapter 7 of IBM i Security Administration and Compliance: Third Edition, by Carol Woodbury.

The WRKAUT (Work with Authority), CHGAUT (Change Authority), and DSPAUT (Display Authority) commands provide the green-screen interface. When issuing these commands, you identify the object by specifying a pathname rather than using the traditional library_name/object_name *objtype naming convention you’re accustomed to. For example, to work with the authorities to the object proj1.txt in the directory /home/cjw/projects, you’d use this command:

Read more ...
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