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

Jack Feschuk jack.feschuk at
Fri May 29 18:52:04 CEST 2015

Thanks for that Matthew, I will grab that information soon.
Have you ever encountered any issue logging in with a user-name that has a
plus sign in it?

On Fri, May 29, 2015 at 12:36 PM, Matthew Newton <mcn4 at>

> 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
> --
> 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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