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2019

Create vSphere Template with Packer

The last months I built a lot of environments for tests with IBM Connections Componentpack, Rancher, plain Kubernetes, IBM Domino and some more. In former years, I deployed single virtual machines, cloned them and created snapshots to “easily” jump back in cases of errors. Then I found Packer, which helped me to automate the first virtual machines on my local notebook. Now I use Packer to create templates for VMware vSphere, which then are deployed and multiplied with Terraform. Terraform needs some packages installed in the template, that it can provision virtual machines on vSphere.

Use OAuth 2.0 token-based authentication with IBM Connections Mobile App

A lot of people don’t like to store credentials in mobile apps or browsers. A good workaround is the usage of OAuth 2.0 tokens, but the application needs to support it and the server you’re talking to too. The IBM Connections Mobile App can use it for authentication. OAauth2 can be used directly with WebSphere Application Server and Connections 6.0. There are no special OAuth servers or applications needed! The Documentation at IBM was a little bit confusing for me, there are lots of sidenotes, but you just need to do following steps, to use OAuth 2.0 token-based authentication with the IBM Connections Mobile App.

2018

Install All Packages After Restore on RPM-based Linux

·301 words·2 mins
In the last days I had a problem with a crashed virtual disk on a WebSphere Application Server. The backup team was able to recover all the data, but the operating system needs to be reinstalled. The operating system was Red Hat Linux, so rpm-based. One of the first tasks after recovery was to identify and reinstall missing packages.

Kubernetes 101 - Docker Mannheim

·98 words·1 min
Today I had the pleisure to give a talk about Kubernetes Basics at the Docker Mannheim Meetup. I enjoyed it very much and we had some very good discussions after the talk with the traditional pizza and drinks sponsored by Stocard. A big shout-out to Jens and Martina for organizing the meetup!

Attending Admincamp 2018

This week starts with Admincamp in Gelsenkirchen. Thanks Rudi Knegt and team for this awesome event! The conference or lets name it camp was real fun. In the end I did three sessions and a workshop. You can find download links to all slides and used files in this article or on https://stoeps.de/speaking/2018/. I learned and heared a lot of interesting stuff around IBM Notes, IBM Connections and Sametime. You can get most of the session slides through the Admincamp agenda.

Asciidoctor Windows

During my talk at FrOSCon I wasn’t sure how to install Asciidoctor on Windows. So I tried on a Windows 10 VM. When you want to use Asciidoctor on a Windows desktop, you need to download the Rubyinstaller and install it. Now you can open a administrative command window and install with gem install asciidoctor.

Froscon13

·102 words·1 min
Today I attended Froscon 13 in St. Augustin. Froscon is one or the biggest event around Opensource in Germany. Thanks again to organizers sponsors of this awesome event, it was a pleisure to be here and have the chance to give a talk. The slides for my session “Documentation with any editor” can be found at https://gitlab.com/stoeps/froscon18-presentation/blob/master/froscon13-documentationwithanyeditor.pdf.

Always have a look at the LDAP

·584 words·3 mins
Today I learned a new lesson during troubleshooting a IBM Connections System. I updated to 6.0 CR2, updated WebSphere to FP13, last fixpack for Docs and so on. You will ask if I added IFP88438 to the list, be sure that I installed this fix which reanables the root element in Federated Repositories. Have a look at WAS 8.5.5 FP12 breaks Domino “root” base entry setting for more details. Then one of the two deployments showed strange behavior with Activities. On the Activitystream I only got an orange error symbol instead of the Todo list and when I opened Activities directly I got an empty page.

New Blog Engine

·465 words·3 mins
I switched my blog to Hugo the last days. After nearly 12 years with WordPress, I needed something new. Why did I drop WordPress, one of the most used blog engines in the world? Most used means always most interesting for bad guys. Dynamic pages are slower and can contain more vulnerabilities than static pages (which Hugo generates). Hugo supports git, so I have version control in my posts and design. I can start a small web server locally and test the posts: hugo server -D and the most convenient thing: I can use VIM for editing.

Linkdump 4/2018

·359 words·2 mins
A long pause after creating the last linkdump. Not sure why, because I read a lot. So this time some of my readings on Kubernetes, Security and Vim.

Build your own Watson Workspace Linux Client

·539 words·3 mins
Watson Workspace Clients are only available for Windows and Mac OS. I’m a 100% Linux user on my devices and I use a Windows virtual machine only if I can’t avoid it. To communicate with colleagues, IBM and DNUG I need to use Watson Workplace, opening the web view is possible, but then I need to search the right tab or forget to open it. Since some weeks there is Zoom (Web / Video meetings) integrated with Watson Workspace too.: Watson Workspace clients are based on Electron. I’m not a big fan of Electron clients, most of them are big and need tons of system resources. There is enough written about advantages and disadvantages, so I just leave it that way.

Linkdump 3/2018

·141 words·1 min
The last two weeks I didn’t read that much, I checked some Youtube videos and blogs about CTF and pentesting. One of the most impressive ones are the LiveOverflow videos and blogposts. So when you’re interested in that topic too, just check the links above.

Linkdump 1/2018

·365 words·2 mins
I’m not sure how long ago I started following Dirk Deimekes Blog. It must be years, because I found the rss feed address already in my Google reader export.

IBM Connections 6.0CR1 Allowlisting, CSS and Wiki TOC

·957 words·5 mins
So up to IBM Connections 6.0 everything was allowed until it was not excluded in one of the blocklist files. This files are stored within the Deployment Manager profile/config/cells/<cellname>/LotusConnections-config/extern. Now with Connections 6.0CR1 everything is forbidden, until it is enabled in the allowlist. This concept is rolled out for widgets (homepage and communities) and active content. Active content means HTML content too. So everything you or your users add to Connections (blog-posts, wiki pages) gets filtered during the save procedure. This removes all HTML tags and attributes which are not explicitly allowed!

2017

IBM Verse on Premises Integration with Connections and Docs issue with iNotes\_WA\_Security\_NonceCheck

·213 words·1 min
During the week we integrated IBM Connections and IBM Docs in our test environment and everything worked fine. Then we moved the configuration to production and most of the stuff was working, like showing Business cards, profile pictures and Connections files to add into mails. Docs Viewer and uploading files from a mail to Connections generated an error: “because of an internal server error”

Social Connections 12 in Vienna

·463 words·3 mins
This time Social Connections is hosted in Vienna. The austrian capital is a great place to meet new and old friends. I love the city and the awesome dialect, to listen and practise a little bit, start with the lovely video about the only word you really need to survive in Vienna.

Deleting temp and wstemp on Microsoft Windows Server

·267 words·2 mins
Since some versions of IBM Connections, it is mandatory to delete temp and wstemp of your Connections node after deployment or updates, or you end up with an old layout/design of Connections GUI. On a Windows Server System this can be a pain, because within temp/wstemp WebSphere Application Server creates a folder structure with nodename / application server name and so on. In must cases the delete ends with the message “path too long”.

2016

Using Docker and ELK to Analyze WebSphere Application Server SystemOut.log

I often get SystemOut.log files from customers or friends to help them analyzing a problem. Often it is complicated to find the right server and application which generates the real error, because most WebSphere Applications (like IBM Connections or Sametime) are installed on different Application Servers and Nodes. So you need to open multiple large files in your editor, scroll each to the needed timestamps and check the lines before for possible error messages.

2015

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