If you built the application locally then the entry point will be located in:
Log files by default are located in:
Database by default is located in:

Static nodes

Static nodes are a pre-configured array of nodes you can trust. They can be defined with a simple static-nodes.json file containing a list of enodes separated with comma.
"enode://c1c3a604950119f82d78189792b73f5a96bd09017c77465e3c32fc51c1d758a9a[email protected]",
"enode://2784b947df025df9911875e68ccfcb0627ad4ae1dfb9f77634435692e8626508d[email protected]"
By default static-nodes.json file is stored in Data/ folder included in Nethermind packages. Path to static-nodes file can be configured via StaticNodesPath parameter.

NLog config

You can change the level of logging in file and in the console by choosing one of the levels (Error, Warn, Info, Debug, Trace):
<logger name="*" minlevel="Info" writeTo="file-async"/>
<logger name="*" minlevel="Info" writeTo="auto-colored-console-async"/>
More detailed NLog configuration can be found here.

Building from repository

Logging level can be controlled in NLog.config file located in:

Downloading package from Github/Downloads package

NLog.config file is supplied with the package and can be found in extraction directory.

Running Nethermind with docker image

NLog.config file is located at /nethermind/NLog.config path inside the docker container. The volume can be then mapped with a simple command:
-v /home/user/NLog.config:/nethermind/NLog.config