Ivan Matačić

Filtering journalctl to a single unit and boot

Sat, 22 Aug 2026 00:00:00 +0000

Scope the journal to one unit and the current boot, and the noise disappears.

Mikrotik export hides default values — use verbose

Tue, 11 Aug 2026 00:00:00 +0000

A plain /export omits every setting still at its default, which makes two configs look different when they are not.

Listing VM world IDs from the ESXi shell

Thu, 30 Jul 2026 00:00:00 +0000

When vCenter cannot power off a hung VM, the ESXi shell can — once you know its World ID.

How Proper Storage Optimization Settings Can Save You Money

Mon, 15 Jan 2024 00:00:00 +0000

Understanding the true cost of object storage is crucial, especially when considering the often-overlooked hidden costs. Learn how proper storage optimization settings can save you money.

How to renew Let's encrypt certificate for PRTG

Mon, 13 Aug 2018 00:00:00 +0000

Find out how to renew Let’s encrypt certificate for PRTG on Windows Server.

How to view system uptime on IBM Storwize

Wed, 04 Jul 2018 00:00:00 +0000

Workaround to view system uptime on IBM Storwize V3700 V5000 V7000 storages using GUI and dump logs.

Prompt for credentials when accessing Office documents

Mon, 06 Nov 2017 00:00:00 +0000

Word or Excel asks for password while opening documents on Sharepoint network location or mapped network drive in Windows.

Windows won't use saved password for network location

Sat, 04 Nov 2017 00:00:00 +0000

Windows not using saved password when accessing WebDav network location or mapped network drive hosted on Sharepoint site.

Let's encrypt certificate for PRTG on Windows Server

Thu, 12 Oct 2017 00:00:00 +0000

Learn how to generate and install free Let’s encrypt certificate for PRTG Server on Windows Server 2012 or newer.

About / CV

Mon, 01 Jan 0001 00:00:00 +0000

Systems administrator in Zagreb. My day-to-day is vSphere clusters, IBM storage, Veeam backup and the networking that ties them together — plus the restores, migrations and post-mortems nobody puts in a job description.

I’ve been at Heptabit for ten years: NOC desk first, then the infrastructure team, now leading it. The decade before that was the commercial side of IT — web shop, key accounts, counter sales — which is where I learned what people actually do with the hardware once it leaves the box.

Homelab

Mon, 01 Jan 0001 00:00:00 +0000

Three nodes, one switch and more services than are strictly necessary. This page is the reference I keep for myself — what runs where, and on which box. Rows marked PLACEHOLDER are waiting for the real specs.

Host	Role	Specs	Software
pve1	virtualization host	Lenovo M90q · i5-10500T / 64GB / 250GB NVMe + 480GB SATA SSD	Proxmox VE 9.2
pve2	virtualization host	Lenovo M90q · i5-10500T / 64GB / 250GB NVMe + 480GB SATA SSD	Proxmox VE 9.2
truenas	NAS	Custom PC · i5-6500 / 24GB /	TrueNAS 25.10
rtr-01	Router	Mikrotik Chateau LTE18 / 7.24.5	VLANs, WireGuard

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Mon, 01 Jan 0001 00:00:00 +0000