How to implement TLS 1.2 in your Terminal Emulator

z/Scope Terminal Emulator TN3270 and TN5250 hosts In a recent post we wrote about SSL/TLS and how recent updates deprecated SSL and TLS 1.1, making TLS 1.2 the new security standard for highly secure websites.

We noticed a rise in tech support requests regarding Transport Layer Security 1.2 and how to change the security protocol and port on TN3270 connections.

We’ve prepared this guide to implement TLS 1.2 in your z/Scope Express 3270 Terminal Emulator. Same steps can be followed on z/Scope Classic to enable TLS 1.2 for any TN3270 hosts connection that requires it.

1) Open up z/Scope Express 3270, click on Options -> Configuration Settings.

How to implement TLS 1.2 in your 3270 Terminal Emulator

2) Click on Connections.

How to implement TLS 1.2 in your 3270 Terminal Emulator

4) Click on Host, and check the “SSL” checkbox. Automatically, a new tab called “SSL” will appear on the left-hand side menu within the connection properties window.

How to implement TLS 1.2 in your 3270 Terminal Emulator

3) Double click on the connection you want to modify.

How to implement TLS 1.2 in your 3270 Terminal Emulator

5) Click on the new “SSL” tab, and select TLS 1.x.

How to implement TLS 1.2 in your 3270 Terminal Emulator

6) Click “Apply” and “Finish”.

You should be ready to try the connection with the new settings. Make sure that you have the right port settings. On some cases, the use of the new TLS factor requires a different port. Have any questions? Contact our technical support for further assistance.

About TLS

Formerly, TLS was also known as “SSL” or “SSL 1.1” (instead of “TLS 1.1”).

TLS/SSL protocol was supported since we released the first z/Scope version, and up to this year, it was a highly secure standard accepted by most hosts.

All our terminal emulation software solutions support TLS 1.2 on its latest builds:

Contact our technical support team to check the software build you are running and get assistance with the update is this is required in your case.

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