Re: wtmpx utility for solaris

Mikael Brandstrom (mikael@KATEDRAL.SE)
Tue, 31 Mar 1998 13:10:11 +0200

On Mon, 30 Mar 1998, Ryan wrote:

> There seems to be a problem with the tmpx file for solairs. Doesn't log
> the full IP's of the users loging in, it truncates it somehow. Therefore,
> the 'last' utility is praticly useless when trying to track down someone.
>
> The wtmpx file logs the full data and doesn't truncate anything. I
> could not find a utility that viewed the wtmpx file. So, I wrote a quick
> one. It has come in very handy. I have attached the source code that I
> wrote.

Just wondering, what is the differens compared with last? (if you
disregard that last only prints some of the information logged?

At least last reads wtmpx
$ truss last
<lot of lines>
open("/var/adm/wtmpx", O_RDONLY) = 3
<another lot of lines>

It seems like Solaris uses wtmpx for the continous logging. wtmp is used
for the accounting system, and is removed evry night if accounting is
running.

// M

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