Plus sign in usernames - Are there any issues to be aware of?

Matthew Newton mcn4 at
Fri May 29 18:36:20 CEST 2015

On Fri, May 29, 2015 at 12:24:22PM -0400, Jack Feschuk wrote:
> We're currently trying to pin down the cause of users with plus signs in
> their user-names not being able to login.
> Example user-name: john.smith+group1 at
> Are there any known issues with this and FreeRADIUS?
> Is the plus sign a "not-safe" character?

I guess you could do something like the following?

  grep -r "safe_char" /path/to/your/raddb/*

or if it does happen to be included (it's not here) then post the
complete failed debug output so we've got some sort of clue about
your setup/config and what might be wrong. Safe characters really
depends on which modules you are using; it's mostly for sql.


Matthew Newton, Ph.D. <mcn4 at>

Systems Specialist, Infrastructure Services,
I.T. Services, University of Leicester, Leicester LE1 7RH, United Kingdom

For IT help contact helpdesk extn. 2253, <ithelp at>

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