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November 08, 2005
Determining number of users on a qmail server
If you've got a qmail server with a large number of users spread out over hundreds of domains, how will you figure out how many users you have? I don't know of any official way, but there are ways to guesstimate.
Let's say you're using vpopmail. Let's say there's a file called lastauth - telling you when each user last checked e-mail and from what IP address.
Then you could get a guesstimate of the number of users by doing this:
find /home/vpopmail/domains | grep lastauth > yourfile
This will take quite a while, if you've got many users.
Then check number of lines in that file, by typing:
wc -l yourfile
Finally remove yourfile
And no, I don't provide support on this. This is for qmail admins, not regular users.
Posted by Ann at November 8, 2005 02:14 PM
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Comments
Why do not use:
`find /home/vpopmail/domains -name lastauth | wc -l'
?
It will do the exactly the same in one step, avoid additional grep call and doesn't require a temporary file.
Posted by: seo black & white at November 12, 2005 10:07 PM