# General Knowledgebase **URL:** https://community.openmainframeproject.org/c/knowledgebase/8.md [Latest](https://community.openmainframeproject.org/latest.md) · [Categories](https://community.openmainframeproject.org/categories.md) --- ## [About the General Knowledgebase category](https://community.openmainframeproject.org/t/about-the-general-knowledgebase-category/23)
**Author:** [@OpenMFProject](https://community.openmainframeproject.org/u/OpenMFProject)\ **Replies:** 0\ **Last updated:** [November 30, 2016, 9:52pm UTC](https://community.openmainframeproject.org/t/about-the-general-knowledgebase-category/23 "2016-11-30T21:52:01Z")
This section is a dedicated space for users to discuss mainframe questions, explore applications, and best practices for using mainframe systems and learn about related projects within the Open Mainframe Ecosystem. To … --- ## [New COBOL Programming Course!](https://community.openmainframeproject.org/t/new-cobol-programming-course/7471)
**Author:** [@Aasifexplainstech](https://community.openmainframeproject.org/u/Aasifexplainstech)\ **Replies:** 1\ **Last updated:** [October 17, 2024, 12:36pm UTC](https://community.openmainframeproject.org/t/new-cobol-programming-course/7471 "2024-10-17T12:36:37Z")
I’ve just launched the first 6 modules of my COBOL Programming Course on YouTube! :movie\_camera: With 9+ years of experience in Mainframe Development, I’ve made the course 90% practical and designed for you to learn from… --- ## [AS400 Crash screen](https://community.openmainframeproject.org/t/as400-crash-screen/6769)
**Author:** [@UctTony](https://community.openmainframeproject.org/u/UctTony)\ **Replies:** 1\ **Last updated:** [December 29, 2022, 7:15am UTC](https://community.openmainframeproject.org/t/as400-crash-screen/6769 "2022-12-29T07:15:48Z")
Hello, I’m new here and trying to learn the in’s and out’s of the AS400 remotely. I was wondering if anyone could give me a screen shot of a crash screen. So if i program crashes, what does the screen look like. Than… --- ## [Mainframe developer resources/communities recommendations](https://community.openmainframeproject.org/t/mainframe-developer-resources-communities-recommendations/6438)
**Author:** [@dlee](https://community.openmainframeproject.org/u/dlee)\ **Replies:** 5\ **Last updated:** [June 7, 2021, 1:40pm UTC](https://community.openmainframeproject.org/t/mainframe-developer-resources-communities-recommendations/6438 "2021-06-07T13:40:23Z")
Hello all, My name is Dylan Lee, and I am a Ph.D. student at the University of Tennessee. I am working on a research project focused on building a greater understanding of how mainframe developers troubleshoot and seek… --- ## [Jenkins slave supported platforms?](https://community.openmainframeproject.org/t/jenkins-slave-supported-platforms/6304)
**Author:** [@likithsun](https://community.openmainframeproject.org/u/likithsun)\ **Replies:** 2\ **Last updated:** [March 5, 2021, 7:43pm UTC](https://community.openmainframeproject.org/t/jenkins-slave-supported-platforms/6304 "2021-03-05T19:43:44Z")
Can Jenkins slave be installed on Mainframe? Over the years, I’ve built a DevOps solution with IBM ClearCase (has a z/OS extension) , ClearQuest and BuildForge (has an agent on z/OS) which supports Mainframe, Informatica… --- ## [The Ultimate Greenhorn - Help!](https://community.openmainframeproject.org/t/the-ultimate-greenhorn-help/6264)
**Author:** [@quinn\_piper](https://community.openmainframeproject.org/u/quinn_piper)\ **Replies:** 0\ **Last updated:** [January 26, 2021, 9:57am UTC](https://community.openmainframeproject.org/t/the-ultimate-greenhorn-help/6264 "2021-01-26T09:57:39Z")
I am newer than new to coding and find myself writing down every other word on my ever-expanding vocabulary list. The absolute only coding I know is from middle school on MySpace, making a heart using: &heart; Can some… --- ## [Collaboration Platform](https://community.openmainframeproject.org/t/collaboration-platform/6156)
**Author:** [@asonny1955](https://community.openmainframeproject.org/u/asonny1955)\ **Replies:** 0\ **Last updated:** [November 11, 2020, 8:18am UTC](https://community.openmainframeproject.org/t/collaboration-platform/6156 "2020-11-11T08:18:34Z")
The situation: A client of mine is about to offer a collaboration platform within the public sector. The need and business case has a COVED-19 background. The platform addresses a video conferencing system, groupware, Fi… --- ## ["cheap" (or reasonable) z/OS Account with CICS, MQ and DB2?](https://community.openmainframeproject.org/t/cheap-or-reasonable-z-os-account-with-cics-mq-and-db2/6093)
**Author:** [@ssamayoa](https://community.openmainframeproject.org/u/ssamayoa)\ **Replies:** 1\ **Last updated:** [October 26, 2020, 4:02am UTC](https://community.openmainframeproject.org/t/cheap-or-reasonable-z-os-account-with-cics-mq-and-db2/6093 "2020-10-26T04:02:03Z")
Hi, I may want to switch from been a Java/JEE guy to Mainframe COBOL guy but need a good place to practice with the “real” stuff: CICS, MQ and DB2. Someone knows a “cheap” (or reasonable priced) hosted z/OS in which I … --- ## [Analytics / Visualization of Operational Mainframe](https://community.openmainframeproject.org/t/analytics-visualization-of-operational-mainframe/6073)
**Author:** [@DavidWagner](https://community.openmainframeproject.org/u/DavidWagner)\ **Replies:** 2\ **Last updated:** [October 1, 2020, 8:34am UTC](https://community.openmainframeproject.org/t/analytics-visualization-of-operational-mainframe/6073 "2020-10-01T08:34:54Z")
Over time I have experienced / seen a lack of ICT operational transparency for the Mainframe. This appears to have led to a perception that Mainframes are too expensive and too complex feeding the let’s get off the Mainf… --- ## [Isn't it more about scaling a currently non-scalable application?](https://community.openmainframeproject.org/t/isnt-it-more-about-scaling-a-currently-non-scalable-application/2603)
**Author:** [@danacan211](https://community.openmainframeproject.org/u/danacan211)\ **Replies:** 15\ **Last updated:** [April 20, 2020, 11:43pm UTC](https://community.openmainframeproject.org/t/isnt-it-more-about-scaling-a-currently-non-scalable-application/2603 "2020-04-20T23:43:43Z")
When I hear they specifically need COBOL programmers I scratch my head wondering why. Did they just discover a ton of bugs or is it that their current architecture is not scalable? My guess would be the latter. I’m thi… --- ## [Talk: running your own mainframe on Linux for fun and profit](https://community.openmainframeproject.org/t/talk-running-your-own-mainframe-on-linux-for-fun-and-profit/2871)
**Author:** [@lispbian](https://community.openmainframeproject.org/u/lispbian)\ **Replies:** 2\ **Last updated:** [April 20, 2020, 1:26pm UTC](https://community.openmainframeproject.org/t/talk-running-your-own-mainframe-on-linux-for-fun-and-profit/2871 "2020-04-20T13:26:12Z")
I remembered having seen a talk at the vintage computing festival in berlin about two years ago that may be relevant for those starting to get into all of this: running your own mainframe on Linux for fun and profit by J… --- ## [What are people using for an ide?](https://community.openmainframeproject.org/t/what-are-people-using-for-an-ide/1000)
**Author:** [@rtayek](https://community.openmainframeproject.org/u/rtayek)\ **Replies:** 7\ **Last updated:** [April 19, 2020, 1:55pm UTC](https://community.openmainframeproject.org/t/what-are-people-using-for-an-ide/1000 "2020-04-19T13:55:25Z")
i heard there was an eclipse plugin and some open source stuff. does any of it work well? --- ## [What can Mainframers do to best capture all of its capabilities?](https://community.openmainframeproject.org/t/what-can-mainframers-do-to-best-capture-all-of-its-capabilities/156)
**Author:** [@OpenMFProject](https://community.openmainframeproject.org/u/OpenMFProject)\ **Replies:** 1\ **Last updated:** [January 9, 2020, 2:29pm UTC](https://community.openmainframeproject.org/t/what-can-mainframers-do-to-best-capture-all-of-its-capabilities/156 "2020-01-09T14:29:45Z")
In our sixth episode of our “I Am A Mainframer Interview Series,” Jeffrey Frey chats with Neale Ferguson, a mainframe expert currently with Sine Nomine, about a variety of mainframe capabilities and use cases. They also … --- ## [Brother printer error](https://community.openmainframeproject.org/t/brother-printer-error/405)
**Author:** [@rparker](https://community.openmainframeproject.org/u/rparker)\ **Replies:** 0\ **Last updated:** [November 14, 2019, 6:20am UTC](https://community.openmainframeproject.org/t/brother-printer-error/405 "2019-11-14T06:20:33Z")
I have been facing an error with the printer that I am using, I have installed the ubuntu OS and then started facing this issue, the system is certainly showing Brother Printer Keeps Going Offline, I have tried my best t… --- ## [Collating logs in a cloud environment](https://community.openmainframeproject.org/t/collating-logs-in-a-cloud-environment/182)
**Author:** [@ekhugen](https://community.openmainframeproject.org/u/ekhugen)\ **Replies:** 0\ **Last updated:** [September 14, 2017, 9:17pm UTC](https://community.openmainframeproject.org/t/collating-logs-in-a-cloud-environment/182 "2017-09-14T21:17:58Z")
Here’s an example of how to collate some logs (we’re looking at a simple start of a stopped guest). In OpenStack GUI we see the guest was started at 3:08PM by some cloud user with a really long userid \<1A589859.jpg\> I… --- ## [Open Mainframe Academic Committee](https://community.openmainframeproject.org/t/open-mainframe-academic-committee/161)
**Author:** [@OpenMFProject](https://community.openmainframeproject.org/u/OpenMFProject)\ **Replies:** 0\ **Last updated:** [July 28, 2017, 10:16pm UTC](https://community.openmainframeproject.org/t/open-mainframe-academic-committee/161 "2017-07-28T22:16:51Z")
Learn more about the endeavors of the Open Mainframe Academic Program in this “I Am A Mainframer” Interview with Jeffrey Frey, Retired IBM Fellow, and Cameron Seay, Lead Principal Investigator for the LEAD-IT Project an… --- ## [Blockchain and the Mainframe](https://community.openmainframeproject.org/t/blockchain-and-the-mainframe/141)
**Author:** [@OpenMFProject](https://community.openmainframeproject.org/u/OpenMFProject)\ **Replies:** 1\ **Last updated:** [June 29, 2017, 3:57pm UTC](https://community.openmainframeproject.org/t/blockchain-and-the-mainframe/141 "2017-06-29T15:57:37Z")
Did you know? Only the mainframe platform earned the highest commercial security classification (EAL+5) available. It is able to keep ledgers separate by holding them in isolated partitions in memory. Additionally, th… --- ## [IBM and Oracle Alliance and describe how Oracle Database benefits from z Systems](https://community.openmainframeproject.org/t/ibm-and-oracle-alliance-and-describe-how-oracle-database-benefits-from-z-systems/128)
**Author:** [@LSantalucia](https://community.openmainframeproject.org/u/LSantalucia)\ **Replies:** 0\ **Last updated:** [May 26, 2017, 4:57pm UTC](https://community.openmainframeproject.org/t/ibm-and-oracle-alliance-and-describe-how-oracle-database-benefits-from-z-systems/128 "2017-05-26T16:57:22Z")
In this IBM Redbooks® publication, we explore the IBM and Oracle Alliance and describe how Oracle Database benefits from z Systems. We then explain how to set up Linux guests to install Oracle Database 12c and how to use… --- ## [Stability on the Mainframe](https://community.openmainframeproject.org/t/stability-on-the-mainframe/109)
**Author:** [@SerenaM](https://community.openmainframeproject.org/u/SerenaM)\ **Replies:** 2\ **Last updated:** [May 16, 2017, 2:00pm UTC](https://community.openmainframeproject.org/t/stability-on-the-mainframe/109 "2017-05-16T14:00:24Z")
"A mainframe is great tool for what it is. In this day and age, you can pick the operating system and pick your development regime that you want. Do you want it on-premise, do you want it off-premise? Do you want it with…