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"The way to modern Kerberos features" is the title of the sambaXP 2020 talk by Stefan Metzmacher. Metzmacher is part of Sernet's Team Samba and also a member of the international Samba Team.

Abstract

  • Using S4U2Self in winbindd
  • The limitations of existing kerberos libraries
  • The challenges of adding new features to kerberos libraries
  • Kerberos testing with plain python

(Slides as PDF)

About the "sambaXP 2020 Retrospective"

In this series we will present recordings of the sambaXP 2020 in the coming weeks. The 19th edition of the international conference on the open source software Samba took place from 26 - 28 May 2020 for the first time exclusively in digital form. Due to the changed event format and the use of an online conference platform, organizer SerNet is able to offer all talks as videos for viewing (link).


Michael Adam is in search for "A stage for Samba in the era of the container platform!?" in his sambaXP 2020 talk. Adam is a Adam is a longtime Samba team member and works as Senior Manager Software Engineering at Red Hat (LinkedIn).

Abstract

In recent times, container application platforms, in particular kubernetes, have become extremely popular, have for instance overtaken the virtual machine centric cloud operating system OpenStack in popularity. In contrast to virtual machine environments which run a variety of operating systems and therefore also have natural use cases for Samba, container platforms are usually running one operating system (kernel) only, and thus don’t offer a very obvious space for Samba, whose main purpose is to act as an agent between different operating systems. Is there still a stage for Samba in container land?

This presentation starts with an introduction to the storage concepts of kubernetes and the container storage interface standard CSI, which generalizes these to other container platforms. It will explain the roles of file, block, and object storage in kubernetes and then shows how a distributed software defined storage system like ceph or gluster is brought into kubernetes, running alongside the consuming applications and managed by so called “operators”, providing storage self service for the applications.

From here on, the presentation explores some very interesting and possibly surprising opportunities for Samba in this environment. Details are omitted in this abstract in order to keep up the suspense. (Slides as PDF)

About the "sambaXP 2020 Retrospective"

In this series we will present recordings of the sambaXP 2020 in the coming weeks. The 19th edition of the international conference on the open source software Samba took place from 26 - 28 May 2020 for the first time exclusively in digital form. Due to the changed event format and the use of an online conference platform, organizer SerNet is able to offer all talks as videos for viewing (link).


Alexander Bokovoy and Florence Blanc-Renaud (both RedHat) talk about "FreeIPA Global Catalog challenges" in this sambaXP 2020 talk. Bokovoy is a Samba team member since 2003 and FreeIPA core developer since 2011; Blanc-Renaud is a LDAP server technology engineer since 2007 and FreeIPA core developer since 2016.

Abstract

At sambaXP 2017, Alexander Bokovoy and Florence Blanc-Renaud reported an initial progress into making Global Catalog service available as a part of FreeIPA deployment. Three years later, Global Catalog in FreeIPA is becoming a reality. In this talk they demonstrate a working Global Catalog service and dive into challenges they faced in mapping FreeIPA to Active Directory world without being an Active Directory domain controller. FreeIPA's use of Samba services continues to exercise Samba infrastructure from a perspective not commonly experienced and well tested. Finally, semantic differences Bokovoy and Blanc-Renaud encountered across multiple protocols and their implementations in open source and proprietary products represent a good lesson in interoperability efforts. (Slides as PDF)

About the "sambaXP 2020 Retrospective"

In this series we will present recordings of the sambaXP 2020 in the coming weeks. These were selected by SerNet's "Team Samba". The 19th edition of the international conference on the open source software Samba took place from 26 - 28 May 2020 for the first time exclusively in digital form. Due to the changed event format and the use of an online conference platform, organizer SerNet is able to offer all talks as videos for viewing (link).


SDC 2020 Logo

This year's Storage Developer Conference (September 22-23, 2020) will be a virtual event. Volker Ledecke and Stefan Metzmacher have already pre-recorderd talks for the SMB agenda track.

Volker Lendecke will address "Samba locking architecture". Lendecke is SerNet co-founder, developer and long-time Samba Team member. 

Stefan Metzmacher's topic will be "Samba Multi-Channel/io_uring Status Update". He works as developer at SerNet and is a member of the Samba-Team as well. 

Both talks will be available in the "Day 1 Breakout Sessions" starting at 11:20am PDT (20:20 Uhr CEST). Registration for SDC 2020 is still possible.


Christof Schmitt talks about "Lessons learned from using Samba in IBM Spectrum Scale" in this sambaXP 2020 talk. He is a member of the international Samba team since 2013 and works as Software Engineer Spectrum Scale for IBM in Tucson, Arizona (LinkedIn).

Abstract

IBM Spectrum Scale is a software defined storage offering of a clustered file system bundled together with other services. Samba is included as part of the product to provide a clustered SMB file server and integration into Active Directory. This talk discusses from a development point of view the integration of Samba into a storage product and what the development team has learned over the years. Topics include the requirement for automated testing on multiple levels and the collaboration with the upstream Samba project. Examples illustrate problems encountered over time and how they have been solved. Further topics are challenges that have been solved and gaps that have been seen with the usage of Samba.

About the "sambaXP 2020 Retrospective"

In this series we will present recordings of the sambaXP 2020 in the coming weeks. These were selected by SerNet's "Team Samba". The 19th edition of the international conference on the open source software Samba took place from 26 - 28 May 2020 for the first time exclusively in digital form. Due to the changed event format and the use of an online conference platform, organizer SerNet is able to offer all talks as videos for viewing (link).


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