Understanding NFSv4 Identity Mapping in NetApp ONTAP (AUTH_SYS and File Ownership Under the Hood)
NFSv4 introduced significant changes compared with NFSv3, including how file and directory ownership is represented between NFS servers and clients….
Passwordless Authentication in Linux – Part 3 – Certificate-Based and FIDO2 Authentication
After exploring certificate-based authentication and Passkeys on FIDO2 for Windows in Part 1 and Part 2, this third part takes…
Understanding Windows-to-UNIX User Mapping with UNIX Security Style in NetApp ONTAP
When Windows users access data stored on a NetApp ONTAP volume using UNIX security style, ONTAP must translate the Windows…
Understanding NFS AUTH_SYS User Mapping with NTFS Security Style in NetApp ONTAP
When NFS clients access data on a NetApp ONTAP volume using NTFS security style, ONTAP cannot simply evaluate the UNIX…
Understanding ICMP Redirects – Why Your Network Traffic Suddenly Takes a Different Route
When a host needs to communicate with a destination outside its local subnet, it normally forwards the packet to its…
Mastering Netplan: Modern Network Configuration on Ubuntu
Modern Ubuntu Server releases (17.10 and later) use Netplan as the default network configuration system. Instead of editing /etc/network/interfaces, the…
Mastering Nested Junction Paths: Qtrees and Export Policies in NetApp Cloud Volumes ONTAP (CVO)
When managing complex enterprise workloads in Azure, a one-size-fits-all approach to storage permissions rarely cuts it. While volumes are the…
How to Shrink a Linux VMware vSphere Virtual Disk (VMDK) and Its Associated Logical Volume
Allocating additional storage to a virtual machine in VMware vSphere is straightforward, you simply increase the size of the virtual…
Linux Cheat Sheet for essential Network Commands
Whether troubleshooting connectivity issues, analyzing network traffic, verifying DNS resolution, or checking listening services, Linux provides a powerful set of…
Updating VMware Tools to 13.0.5 manually on Ubuntu 24.04 (Headless Build – without GUI)
Ubuntu’s packaged version of open-vm-tools often lags behind VMware’s latest release. If you want to upgrade manually or build a…
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Understanding NFSv4 Identity Mapping in NetApp ONTAP (AUTH_SYS and File Ownership Under the Hood)
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