Yes. DNN Platform is a free, open-source CMS under the MIT License.

What is the tech stack for DNN?

DNN runs on ASP.NET (.NET Framework 4.8+) with Microsoft SQL Server (2017+ or Azure SQL).

DNN Platform is community-led and a member project of the .NET Foundation.

What’s the difference between DNN and Evoq?

DNN Platform is the open-source core that's been wildly popular and adopted for over 20 years. Evoq is a commercial offering maintained by DNN Software (IgniteTech) that builds on DNN.

DNN Forums

Ask questions about your website to get help learning DNN and help resolve issues.

Forum: Performance and Optimization

	Replies	Views	Subscribers	Last Post
Image Cache causing performance issues Started By Matt Hey all, New to DNN here, but trying to diagnose an issue in our production environment. I'll give you the long of the short, if any more detail is needed to help, or if anyone has seen similar, please let me know. Basic setup: 6 IIS nodes, utilizing one webshare as the root folder. The issue that is occurring is when a temp file is being created in part of the root/_imagecache/, it is causing an exception (System.IO.InternalBufferOverflowException: Too many changes at once in directory...	1	520	1	10/1/2024 12:01 PM by Matt
Issue with friendly url Started By Marnix So, on some module we created in the past we generated a friendly url to a detailpage, kind of like this: string GetDetailLink(ItemInfo objItemInfo) \ string detaillink = ''; int tbid = TabId; string Path = '~/default.aspxtabid=' TabId '&itmid=' Convert.ToString(objItemInfo.ItemId); DotNetNuke.Entities.Tabs.TabInfo TabInfo = default(DotNetNuke.Entities.Tabs.TabInfo); DotNetNuke.Entities.Tabs.TabController TabController = new DotNetNuke.Entities.Tabs.TabContr...	12	1320	0	8/20/2024 7:52 AM by Marnix
Azure SQL Server API Notification Started By Hans Zassenhaus We are using DNN Release 9.6.2 and have received the following notification from microsoft regarding the use of APIs for SQL Server: 'To improve performance and security, we’re updating Azure SQL Database APIs. As part of this, all version 2014-04-01 APIs will be retired on 31 October 2025. You’ll need to update your resources, including templates, tools, scripts, and programs, to use a newer API version by then. Any API calls still using the older versions after that date will stop working u...	2	919	3	8/26/2024 11:49 AM by Hans Zassenhaus
Configuring a load balancer for DNN Started By Vicenç Masanas It's been a while since I haven't configured DNN on a load balancer scenario, actually the last time it was on Evoq, but looooong ago. Is there any documentation, guide, todo, ... on best practices on how to do this any extensions required suggested Thanks,	4	710	0	6/5/2024 2:37 AM by Vicenç Masanas
Issues with DNN Search Functionality Started By AntonioG The portal is currently running on DNN version 9.9.0. I initially upgraded to version 9.10.2, but during the update in the browser, I received a 502 error. After refreshing the page, everything seemed fine. I then attempted to remove Telerik, and while installing the Resource Manager module, the 502 error reappeared. After another page refresh, the issue seemed resolved. Ultimately, I decided to restore the site to version 9.9.0 using a previously made backup. After checking the logs, I notic...	4	943	1	5/29/2024 1:52 PM by AntonioG
DNN 9.1.1 Edit Button not working Started By Shahrear Hi, I am having this issue when I click on edit button on any page and the site crashes, any ideas how can I resolve this DotNetNuke.Services.Exceptions.Exceptions - FriendlyMessage='An error has occurred.' ctrl='ASP.admin_menus_moduleactions_moduleactions_ascx' exc='System.ArgumentNullException: Value cannot be null. Parameter name: source at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate) at DotNetNuke.Entities.Portals.PortalGroupController.IsModuleS...	2	688	0	3/13/2024 5:00 PM by Shahrear
DNN 9.1.1 Edit Button not working Started By Shahrear Hi, I am having this issue when I click on edit button on any page and the site crashes, any ideas how can I resolve this DotNetNuke.Services.Exceptions.Exceptions - FriendlyMessage='An error has occurred.' ctrl='ASP.admin_menus_moduleactions_moduleactions_ascx' exc='System.ArgumentNullException: Value cannot be null. Parameter name: source at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate) at DotNetNuke.Entities.Portals.PortalGroupController.IsModuleS...	2	636	0	3/13/2024 5:00 PM by Shahrear
Scheduler suddenly stops working Started By Gus We're using DNN PLATFORM v. 09.12.00 (0) and since we upgraded to this version, we've noticed that the scheduler suddenly stops working and no scheduled tasks get executed and when trying to manualle run the scheduled task, nothing happens (no visual error is displayed), no task gets executed. Reviewing the logs we can see the following error after attempting to manually run a scheduled task: 2024-02-27 23:57:57,210 [servername][ERROR] DotNetNuke.Services.Exceptions.E...	5	1078	1	3/1/2024 3:28 PM by Gus
Site SEO Started By Matt C Hi Everyone, this is a bit of a laundry list that I see on sites/pages that I'm looking to better optimize (DNN 9.3.2) for SEO. I would be interested in what current best practices are to overcome these dings. I use Woorank - open to better suggestions They indicate that the lack of schema.org items is a high priority from an SEO standpoint. Robots.txt is disallowing access to a few images, notably the search and social icons that are part of my skin (Porto 5). XML Sitemap - Wooran...	5	4296	3	4/15/2021 3:04 PM by Matt C
Unable to create Lucene writer (lock file is in use) Started By MohitSahu Hi, We are facing issue in the DNN version 9.10.2, below are the error details General Exception: AbsoluteURL DefaultDataProvider DotNetNuke.Data.SqlDataProvider DotNetNuke Message:Unable to create Lucene writer (lock file is in use). Please recycle AppPool in IIS to release lock. We have checked the admin logs and the error logged 50 times in a second and causing database timeout. Could you please have a look and provide the solution. https://imgur.com/a/VFWjWWl	5	701	1	1/31/2024 6:32 AM by MohitSahu

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DNN Forums

Ask questions about your website to get help learning DNN and help resolve issues.

Forum: Performance and Optimization

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