[Adduser-devel] Bug#493230: Bug#493230: manpage of adduser/useradd does not mention how long a username can be

Stephen Gran sgran at debian.org
Fri Aug 1 20:53:38 UTC 2008

reassign 493230 passwd
This one time, at band camp, Michelle Konzack said:
> Hello Maintainer,
> Today @customer I had to create several 10.000 users from a  script  and
> it seems, I have hit the limits with the length  of  the  username.  The
> customer need usernames of up to 40 characters...
> Tonight I have tried some things on my own Etch server @home and I  have
> the same resultat...  But, my NetBSD-Box let me allow longer names.
> Searching the manpages, info and other documentation results in nothing.
> Using LDAP and other tools,  allow  me  to  set  LOGIN  longer  then  32
> characters.
> I think, the manpage should mention, that the  LOGIN  name  can  not  be
> longer then 32 characters if "useradd" is used.
> Since "ssh" and "login" allow LOGIN with much longer names, please allow
> LOGIN with more then 32 characters.  Increasing it to 64 would be fine.

steve at spartacus:~$ sudo adduser ass1234567890123456789012345678901234567890
Adding user `ass1234567890123456789012345678901234567890' ...
Adding new group `ass1234567890123456789012345678901234567890' (1004) ...
groupadd: ass1234567890123456789012345678901234567890 is not a valid group name
adduser: `/usr/sbin/groupadd -g 1004 ass1234567890123456789012345678901234567890' returned error code 3. Exiting.

steve at spartacus:~$ man groupadd | grep Groupnames
       Groupnames must begin with a lower case letter or an underscore, and
       Groupnames may only be up to 16 characters long.

I'm reassigning to passwd since that's what's refusing to add the group
(which you might have noticed had you read the output, but oh well). 
|   ,''`.                                            Stephen Gran |
|  : :' :                                        sgran at debian.org |
|  `. `'                        Debian user, admin, and developer |
|    `-                                     http://www.debian.org |
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