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The Piotr Bach Blog
Articles, observations and practical notes on software, the web and the work of building digital products.
Reset an Umbraco 6 administrator password in SQL Server with the correct legacy hash, then recycle the IIS App Pool before testing the backoffice login.
Technical debt is not a backlog of everything that could be cleaner. In a mature Umbraco platform, the useful question is economic and operational: what cost...
Upgrade cost is often determined years before the upgrade begins. The useful question is not only whether an Umbraco solution can reach the next version, but...
Performance diagnosis is not a sequence of optimizations. It is an evidence loop: define the symptom, reproduce or observe it, decompose the latency, form a...
Umbraco projects rarely become expensive because of one catastrophic decision. Cost grows when content architecture, custom code, data, search,...
ASP.NET Core does not force you into one application architecture. That freedom is useful, but it also makes it easy to accumulate layers, abstractions and...
Umbraco 9 did more than replace one runtime with another. Moving from .NET Framework to ASP.NET Core changed where Umbraco could run, how projects were...
A production-focused guide to designing explicit contracts, handling realistic failures, protecting trust boundaries, and recognizing defensive-programming...
A practical, read-only T-SQL technique for finding published content that uses a specific data type in Umbraco 13
Need to preserve old URLs after an Umbraco 17 migration? Here is how umbracoRedirectUrl works, how to add records with SQL Server, and how to verify the...
How the Umbraco 13 backoffice idle timeout works, which settings control it, and how to balance editor convenience with security.
Your Azure deployment suddenly fails with AADSTS7000222. Here is how to restore it quickly and remove the expiring secret permanently with workload identity...
While migrating and publishing more than 805,000 documents from a legacy CMS, I was looking for every source of unnecessary background work. SQL Profiler...
A practical guide to umbracoUrlName, umbracoUrlAlias, umbracoRedirect and umbracoInternalRedirectId, including how each mechanism changes URL generation and...
Configure alternate URL paths with the reserved umbracoUrlAlias property, understand how alias routing differs from redirects, and account for...
Use umbracoInternalRedirectId to serve another content node internally while keeping the requested URL unchanged, and understand how this differs from a 302...
Create and verify a built-in 302 Temporary Redirect with the reserved umbracoRedirect Content Picker property.
Use the reserved umbracoUrlName property to change a content node’s generated URL segment without renaming the node in the Umbraco backoffice.