it_user302112's Professional Profile

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User Activity

Over 7 years ago

Contributed a review of Icinga: Satellite servers check their own zones and report back to the masters.

About 8 years ago

Commented on Providing relatively cheap NAS solution with great scale-out functionality.

Great review! I agree with you: A management console would really be a plus, and who knows, maybe one day this could be extended to a (graphical) setup wizard.

About 8 years ago

Commented on Using this for backlog prioritization is the key to either kanban or scrum processes.

This is an excellent review. I think most companies will reach the ROI within a couple of months, too. Although licence fees might be high, I think JIRA is worth the price.

Over 8 years ago

Contributed a review of Atlassian Crowd: The integration of third-party directory services helps you to move your existing users and groups into the Atlassian products.

Over 8 years ago

Contributed a review of Jira: User friendly and since it's structured, it's easy to ask people from non-technical departments to use it as well.

Over 8 years ago

Contributed a review of Atlassian ALM: JIRA, Confluence, BitBucket and HipChat work well with each other.

Over 8 years ago

Answered a question: Solution needed: IPAM and CMDB in one tool

Thanks for your comment! We don't need autodiscovery, but it is good to know that uCMDB contains this feature. We would like to use a CMDB tool which is able to trigger external actions An example: * Someone adds a new server within the CMDB (let's say it is a VM) *…

Over 8 years ago

Asked a question: Solution needed: IPAM and CMDB in one tool

Over 8 years ago

Answered a question: What are typical options for storing and managing large videos?

I think that using one solution for all of your needs wouldn't do it. Your requirements (points 1-6) are very different and each of them refers to a different type of application When it comes down to storing the files, I can highly recommend LizardFS. The software-defined…

Over 8 years ago

Commented on KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

Hi Steve, thanks for asking! MS support is not that bad, actually, The Fedora project provides VirtIO drivers which enhance the performance of MS guests in a great way. I ran douzens of Windows 7, Win2008 and Win2012 servers under KVM and had no Windows-specific issues…

Over 8 years ago

Contributed a review of Ubuntu Linux: Since it provides LTS releases with 5 years of support, you can have longer server lifecycles without having to worry about security patches.

Over 8 years ago

Commented on IT Central Station Elite Squad

Greetings I am pleased to meet you guys and be part of the "hard core" of reviewers here at IT Central Station. Thanks @Ariel for inviting me! Looking at the previous speakers, I feel like I might be one of the younger folks around. My name is Valentin Höbel, I'm 28 years…

Over 8 years ago

Commented on It's kept data synchronized between multiple nodes in different datacenters, though it should have its own filesystem which can be used in multi-master environments.

Thank you for your feedback, Gregory!

Over 8 years ago

Commented on The top features for us are the modification profiles and the initial dashboard.

Thanks for this review!

Almost 9 years ago

Commented on The most important feature is the distributed, highly-available monitoring clusters available in the enterprise editions.

Great review! What do you think about the pricing?

Almost 9 years ago

Answered a question: SaltStack vs. Ansible - which should I choose?

Unfortunately I can't edit my own post, so I'll just add another comment My statement > If you want to use something which requires no coding skills at all only applies if you want to use more powerful features/abilities of Ansible. Basic config mgmt can be performed…

Almost 9 years ago

Answered a question: SaltStack vs. Ansible - which should I choose?

I wonder what makes you think that SaltStack is less popular than Ansible; as a matter of fact, SaltStack seems to have more contributions from different developers than the other solution. Also there is a large community of folks using SaltStack, so getting help or even…

About 9 years ago

Commented on KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

Oh, I know VirtualBox. I have been using it for years and as I stated before, I think it is a great product I was working as a consultant for many companies and I have seen many very large virtualized environments, all of them based on either KVM, Xen or VMWare. But NONE…

About 9 years ago

Commented on KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

> and KVM is not as mature as Hyper-V, VMware Workstation or Virtual Box You can't be serious? Virtual Box is a typical "let's start a VM on my desktop" product, but far away from enterprise virtualization. Have you ever seen a virtualization cluster in the datacenter based…

About 9 years ago

Contributed a review of LizardFS: There is an automated built-in failover mechanism, but you must build it yourself if you have no support contract in place.

About 9 years ago

Contributed a review of DRBD: It's kept data synchronized between multiple nodes in different datacenters, though it should have its own filesystem which can be used in multi-master environments.

About 9 years ago

Commented on KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

> KVM is way behind 3rd party support What do you exactly mean by that?

About 9 years ago

Commented on KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

There is nothing wrong with VirtualBox. It is a great product, but not a server virtualization product. Furthermore it lacks of good performance and features one need for running virtual environments in the datacenter or cloud VirtualBox is a solution for local…

About 9 years ago

Contributed a review of Bitbucket Server: Users can create their own Git repositories, but it runs its own SSH server leading to certain overheads on the system.

About 9 years ago

Contributed a review of KVM: KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

About 9 years ago

Commented on We've used it to move 80% of our servers to a virtual environment, but it lacks a good built-in backup feature.

I didn't claim it is a good solution or that I used it, I just wrote that there is one > you must not have much experience with backup solutions Interesting conclusion. Actually, I write the backup solutions I need myself or I implement it using open source software and…

About 9 years ago

Contributed a review of Atlassian Confluence: We're able to create and organize our self-written documentation efficiently, although it's written in, and therefore has the overhead and issues of, Java.

About 9 years ago

Commented on We've used it to move 80% of our servers to a virtual environment, but it lacks a good built-in backup feature.

Well, VMWare at least allows taking snapshots of virtualized guests. This is not the same as performing backups, but it helps if you need something helpful fast In my eyes, the vendor VMWARE should create a decent backup solution - oh wait, they did! It is called VMware…

About 9 years ago

Contributed a review of Joomla: This CMS lets you create an own website within minutes, no matter if the user has knowledge in coding, but you have to be very careful when it comes to choosing the right add-ons.

About 9 years ago

Contributed a review of Zarafa: Our customers are able to use this groupware solution to connect to Active Directory and OpenLDAP, although Postgres support would be an improvement.

About 9 years ago

Contributed a review of VMware Aria Automation: With it, I'm able to rollout critical updates on all affected servers regardless of the number of servers.

About 9 years ago

Contributed a review of Opsview: The API is not state of the art, but Opsview helped reduce the number of logs in text files.

Reviews

Over 7 years ago

Icinga

Satellite servers check their own zones and report back to the masters.

Over 8 years ago

Atlassian Crowd

The integration of third-party directory services helps you to move your existing users and groups into the Atlassian products.

Over 8 years ago

Jira

User friendly and since it's structured, it's easy to ask people from non-technical departments to use it as well.

Over 8 years ago

Atlassian ALM

JIRA, Confluence, BitBucket and HipChat work well with each other.

Over 8 years ago

Ubuntu Linux

Since it provides LTS releases with 5 years of support, you can have longer server lifecycles without having to worry about security patches.

About 9 years ago

LizardFS

There is an automated built-in failover mechanism, but you must build it yourself if you have no support contract in place.

About 9 years ago

DRBD

It's kept data synchronized between multiple nodes in different datacenters, though it should have its own filesystem which can be used in multi-master environments.

About 9 years ago

Bitbucket Server

Users can create their own Git repositories, but it runs its own SSH server leading to certain overheads on the system.

About 9 years ago

KVM

KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

About 9 years ago

Atlassian Confluence

We're able to create and organize our self-written documentation efficiently, although it's written in, and therefore has the overhead and issues of, Java.

About 9 years ago

Joomla

This CMS lets you create an own website within minutes, no matter if the user has knowledge in coding, but you have to be very careful when it comes to choosing the right add-ons.

About 9 years ago

Zarafa

Our customers are able to use this groupware solution to connect to Active Directory and OpenLDAP, although Postgres support would be an improvement.

About 9 years ago

VMware Aria Automation

With it, I'm able to rollout critical updates on all affected servers regardless of the number of servers.

About 9 years ago

Opsview

The API is not state of the art, but Opsview helped reduce the number of logs in text files.

Questions

Answers

Over 8 years ago

Configuration Management Databases

Solution needed: IPAM and CMDB in one tool

Over 8 years ago

Enterprise Content Management

What are typical options for storing and managing large videos?

Almost 9 years ago

Cloud Management

SaltStack vs. Ansible - which should I choose?

Almost 9 years ago

Cloud Management

SaltStack vs. Ansible - which should I choose?

Comments

About 8 years ago

Software Defined Storage (SDS)

Providing relatively cheap NAS solution with great scale-out functionality.

About 8 years ago

Application Lifecycle Management (ALM) Suites

Using this for backlog prioritization is the key to either kanban or scrum processes.

Over 8 years ago

Server Virtualization Software

KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

Over 8 years ago

IT Central Station Elite Squad

Over 8 years ago

High Availability Clustering

It's kept data synchronized between multiple nodes in different datacenters, though it should have its own filesystem which can be used in multi-master environments.

Over 8 years ago

Network Monitoring Software

The top features for us are the modification profiles and the initial dashboard.

Almost 9 years ago

Network Monitoring Software

The most important feature is the distributed, highly-available monitoring clusters available in the enterprise editions.

About 9 years ago

Server Virtualization Software

KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

About 9 years ago

Server Virtualization Software

KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

About 9 years ago

Server Virtualization Software

KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

About 9 years ago

Server Virtualization Software

KVM allows me to run virtualized environments for my customer projects and to modify the code as it's open-source, although there were stability issues when running I/O intensive tasks.

About 9 years ago

Server Virtualization Software

We've used it to move 80% of our servers to a virtual environment, but it lacks a good built-in backup feature.

About 9 years ago

Server Virtualization Software

We've used it to move 80% of our servers to a virtual environment, but it lacks a good built-in backup feature.

About me

Always looking for new exciting experiences and technologies.

Gained much experience in/with: Linux (Debian, Ubuntu, CoreBiz, CentOS, Red Hat), Xen, KVM, libvirt, Zarafa, Opsview, Cfengine 2, Cfengine 3, Puppet, OpenLDAP, Samba, migrating stuff (from Windows to Linux, Linux to Linux, between Groupwares, Active Directory to OpenLDAP), FAI

Currently focusing on: Configuration management (Puppet), Cloud Orchestration and parallel system administration (Salt), automated deployment (FAI), automating tasks (Bash, Python), Debian package management (reprepro) and setting up storage as a service (GlusterFS, LizardFS).

Furthermore I have been writing articles for the print media (e.g. Linux Magazine).

Certifications

Fachinformatiker für Systemintegration
Junior Level Linux Professional (LPIC-1)
Novell Certified Linux Administrator (CLA 11)
Novell DC Tech Spec
Zarafa Certified Administrator
Zarafa Certified Engineer
Red Hat Certified System Administrator (RHCSA)
Red Hat Certified Engineer (RHCE)
Red Hat Certified Virtualization Administrator (RHCVA)
Ausbilder (AdA)

Employers

NFON AG
Linux Information Systems AG
Linux Information Systems AG
NTT Europe (DoCoMo Euro Labs Munich)
Hofmeir Media GmbH

Education

Technische Berufsschule München