How to exclude files from indexing using blacklist?

[sergeyvinnik]

I need to blacklist files with specific letters inside the hostname like:

d:\logs\xxxxxxxxxMyLog__yyyyyyyy.txt

In this sample I want to ignore files with "MyLog__" combination inside the hostname.
What should I enter into Blacklist field in Web GUI?

[dshpritz]

You would enter something like:

.*MyLog__.*

[emechler_splunk]

When you say hostname, do you really mean the full path name to the file?