NEST: Knowledge https://nestit.pl/en/knowledge.html Practical guides from NEST: NIS2 and the Polish KSC Act, servers and virtualisation, Python, Django and frontend. Deadlines, costs and checklists. en © 2026 NEST Fri, 06 Nov 2026 09:00:00 +0100 NIS2 and the Polish KSC Act: key deadlines, obligations and a checklist https://nestit.pl/en/knowledge/nis2-ksc-deadlines-checklist.html https://nestit.pl/en/knowledge/nis2-ksc-deadlines-checklist.html Fri, 06 Nov 2026 09:00:00 +0100 Cybersecurity The amended Polish KSC Act has applied since 3 April 2026. Deadlines, obligations of essential and important entities, incident reporting, penalties and a checklist for 2027. VMware after the Broadcom acquisition: Proxmox VE or Hyper-V? https://nestit.pl/en/knowledge/vmware-proxmox-or-hyper-v.html https://nestit.pl/en/knowledge/vmware-proxmox-or-hyper-v.html Fri, 06 Nov 2026 09:00:00 +0100 Infrastructure VMware licences have become more expensive. We compare Proxmox VE and Hyper-V: costs, management, backups and a step-by-step virtual machine migration plan. Windows Server 2016 loses support on 12 January 2027. What to do with your servers? https://nestit.pl/en/knowledge/windows-server-2016-end-of-support.html https://nestit.pl/en/knowledge/windows-server-2016-end-of-support.html Fri, 06 Nov 2026 09:00:00 +0100 Infrastructure After 12 January 2027 Windows Server 2016 gets no more security updates. Options: migration, ESU, domain controllers, CAL licences and an action plan. Dell EMC VNX storage failure: how to recover data and services safely https://nestit.pl/en/knowledge/dell-emc-vnx-failure-recovery.html https://nestit.pl/en/knowledge/dell-emc-vnx-failure-recovery.html Fri, 06 Nov 2026 09:00:00 +0100 Infrastructure Is your VNX array reporting faults or have LUNs disappeared? What to check, what not to do, how to restore data and services and how to plan replacing an unsupported array. Advanced network segmentation on Cisco switches: VLANs, VRF, 802.1X and TrustSec https://nestit.pl/en/knowledge/cisco-network-segmentation.html https://nestit.pl/en/knowledge/cisco-network-segmentation.html Fri, 06 Nov 2026 09:00:00 +0100 Cybersecurity How to divide a company or public-sector network into zones on Cisco Catalyst switches: VLANs and VRF, 802.1X with ISE, layer 2 protection, TrustSec and a rollout without downtime. Backing up Oracle databases with Veeam: RMAN, ransomware resilience and restore testing https://nestit.pl/en/knowledge/veeam-oracle-database-backup.html https://nestit.pl/en/knowledge/veeam-oracle-database-backup.html Fri, 06 Nov 2026 09:00:00 +0100 Infrastructure How to protect Oracle databases with Veeam: application-aware image backup or the RMAN plug-in, immutable backups, point-in-time restore and regular restore tests. Python 3.15: the key new features and how to prepare your applications for the upgrade https://nestit.pl/en/knowledge/python-3-15-whats-new.html https://nestit.pl/en/knowledge/python-3-15-whats-new.html Fri, 06 Nov 2026 09:00:00 +0100 Software Python 3.15 brings lazy imports, frozendict, the Tachyon profiler and UTF-8 by default. What changed, what can break an upgrade and when to move. Django 6.0 and 6.1: what's new and how to plan the upgrade https://nestit.pl/en/knowledge/django-6-whats-new-upgrade.html https://nestit.pl/en/knowledge/django-6-whats-new-upgrade.html Fri, 06 Nov 2026 09:00:00 +0100 Software Background tasks, template partials, built-in CSP and ORM fetch modes. What is new in Django 6, how long each version is supported and how to upgrade safely. React or Angular? Choosing the frontend for a business or public-sector application https://nestit.pl/en/knowledge/react-or-angular.html https://nestit.pl/en/knowledge/react-or-angular.html Fri, 06 Nov 2026 09:00:00 +0100 Software We compare React 19 and Angular 22: architecture, support and upgrades, accessibility, the developer market and maintenance costs. When each choice makes sense.