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Technical guides from real engineering practice: installation, integration, automation, troubleshooting and production operation of modern Linux and open-source platforms. The articles connect concrete configuration with architecture, security, lifecycle, monitoring and operations.

  • SUSE logo
    Enterprise Linux,  Linux Lifecycle Management

    Install SLES 16 for production

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    15 minutes read

    Step-by-step guide for a registered, patched and remotely manageable SLES 16 server with Agama, SELinux, NetworkManager, Btrfs/Snapper and Cockpit.

    : Install SLES 16 for production
  • grommunio Web shows the registered ActiveSync device under Mobile Devices.
    grommunio & Groupware

    grommunio MDM 2026 step by step: manage ActiveSync devices safely

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    8 minutes read

    Practical guide for grommunio Mobile Device Management with Exchange ActiveSync, grommunio Sync, device overview, resync, remove and remote-wipe safety.

    : grommunio MDM 2026 step by step: manage ActiveSync devices safely
  • Opened archived message with restore action in grommunio Archive.
    grommunio & Groupware

    Set Up grommunio Archive 2026

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    10 minutes read

    Step-by-step email archiving with grommunio Archive: installation, mail flow, search, restore, backup and monitoring.

    : Set Up grommunio Archive 2026
  • grommunio Files and Office with files, share status and Office integration.
    grommunio & Groupware,  Enterprise Linux

    grommunio Files and Office 2026 step by step

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    16 minutes read

    Practical guide for grommunio Files and Office: installation, Web entry, SSO classification, DOCX/XLSX/PPTX, sharing, saving, backup and troubleshooting.

    : grommunio Files and Office 2026 step by step
  • Operations channel with active user and visible channel structure.
    grommunio & Groupware,  Enterprise Linux

    grommunio Chat 2026 step by step

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    10 minutes read

    Practical guide for grommunio Chat: installation, database, nginx upstream, domain teams, WebSockets, two users and multi-tenancy.

    : grommunio Chat 2026 step by step
  • grommunio Meet before joining the test room.
    grommunio & Groupware,  Enterprise Linux

    grommunio Meet 2026 step by step

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    14 minutes read

    Set up grommunio Meet: web integration, Jitsi components, Videobridge, UDP/ICE, SSO adapter and multi-user test.

    : grommunio Meet 2026 step by step
  • grommunio web login as card image for central sign-in with Keycloak and MFA.
    grommunio & Groupware,  Identity & Access,  Enterprise Linux

    Run grommunio-auth with Keycloak in production

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    14 minutes read

    Central sign-in for grommunio: grommunio-auth, Keycloak, realm, user federation, MFA, login test, logout redirect and hardening.

    : Run grommunio-auth with Keycloak in production
  • Rspamd status view as card image for grommunio-antispam.
    grommunio & Groupware,  Security & Penetration Testing

    Operate grommunio-antispam for secure groupware

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    16 minutes read

    Set up Rspamd in grommunio for production: WebUI, GTUBE, Bayes training, whitelist/blacklist maps, DKIM context and operations.

    : Operate grommunio-antispam for secure groupware
  • grommunio Admin overview after installation.
    grommunio & Groupware,  Enterprise Linux

    Install grommunio 2026 as a collaboration platform

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    13 minutes read

    From verified ISO to production groupware: appliance installation, domain, users, Admin UI, web login, test mail and operational baseline.

    : Install grommunio 2026 as a collaboration platform
  • freeipa logo.
    Identity & Access

    FreeIPA Enterprise Architecture

    Author:
    ForgeOneStamenography 17.
    Mathias Rumbold
    10 minutes read

    How to separate FreeIPA, DNS, PKI, HBAC, sudo, Keycloak and automation cleanly in larger Linux environments.

    : FreeIPA Enterprise Architecture