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Log4net not write log on IIS .net core 6
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Stefano Ghinassi - NetribeGroup
0
Reputation points
I have two .NET Core 6 services on IIS in two separate application pools. In both, I use Log4Net to log errors. I have given NETWORK DEVICE user permissions on the log directories. The first service logs correctly, but the second one does not. However, if I stop the second application pool and start the service from the command line, it starts logging.
However, no errors are recorded in the event viewer
{count} votes
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AgaveJoe 28,131 Reputation points2024-09-20T17:12:33.6066667+00:00 It sounds like your account has write access to the log folder while the application pool identity does not.
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Stefano Ghinassi - NetribeGroup 0 Reputation points
2024-09-23T05:50:33.3466667+00:00 Tanks Agavejoe for your suggestion, but I have two application pool on the same machine , one write the log and the other do not. I don't think is authorization problem.
The application that don't write the log it's alwaysrunning.
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Sam Wu-MSFT 7,526 Reputation points Microsoft Vendor2024-09-23T08:32:40.0466667+00:00 @Stefano Ghinassi - NetribeGroup
Ensure that the identity of the application pool for the second service is correctly set. By default, it might be set to
ApplicationPoolIdentity, which may not have sufficient permissions.- Go to IIS Manager > Application Pools.
- Right-click on the application pool for the second service and select Advanced Settings.
- Check the Identity under Process Model. If it's
ApplicationPoolIdentity, try changing it to a custom identity orNetworkService.
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Lex Li (Microsoft) 5,582 Reputation points Microsoft Employee2024-09-23T20:31:31.1066667+00:00 Modern IIS releases no more use
NETWORK SERVICEas default pool identity, so you might have configured the right file system ACL. Alternatively, you might grant IIS_IUSRS group write access on that log folder, which covers all possible IIS application pool identities. -
Stefano Ghinassi - NetribeGroup 0 Reputation points
2024-09-24T06:18:22.1733333+00:00 Hello everyone, today I checked the log again and I saw that, after the weekend, the application pool started writing it without me making any changes.
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