The name of a Unix SVR4 wtmp format file to log
Accounting-Request messages. All Accounting-Request messages will be
logged. If WtmpFileName is not defined, no messages will be logged in this
format. The default is no logging. The file name can include
Section 3.3. Special formatters, which
means that, for example, using the %c specifier, you can maintain separate
accounting log files for each Client. The WtmpFileName file is always
opened written and closed for each message, so you can safely rotate it at
any time. Start messages are logged as USER_PROCESS (7), all other
messages are logged as DEAD_PROCESS (8).
You may wish to use your
standard Unix administration tools (such as last(1)) to process
information in the wtmp file.
Tip
Red Hat Enterprise Linux
6.1 and later uses a modified format for wtmp files, compared with earlier
versions. In order to use tools like last
on a wtmp
file produced by Radiator, you will need to use the -o
flag (which specifies lib5c format).