I was reading a bit about this (I manage a LDAP server, but I am far from a specialist) and the format is actually too flexible: Any UTF-8 encoding with up to 64 characters.

I suspect basic punctation marks would be enough. Though I could see a Windows based SSO system (AD) accepting spaces and maybe even that being a usual convention (just speculating here).

But _s and .s are probably very common across existing installations.

On 2016-08-08 11:21, James Taylor wrote:
I don't think there is any good reason. Public username's main purpose
originally was to generate slugs for URLs so we left out "-".
Shouldn't break anything to add it.

On Mon, Aug 8, 2016 at 12:24 PM, Björn Grüning
<bjoern.gruen...@gmail.com> wrote:
Does anyone know why we have this restriction? Can we change it?

Am 08.08.2016 um 17:31 schrieb Tiago Antao:
Sorry, that was what I meant and explained myself poorly.

This is actually a very serious problem if one wants to integrate Galaxy
in an existing SSO environment based on LDAP.

Tiago

On 2016-08-08 09:28, Nicola Soranzo wrote:
Actually it's Galaxy (not the LDAP integration) that doesn't allow
underscores in usernames, in fact if you try to register a new user on e.g. usegalaxy.org and the username has an underscore, you'll get this
error:

Public name must contain only lowercase letters, numbers and "-". It
also has to be shorter than 255 characters but longer than 2.

Cheers,
Nicola

On 08/08/16 16:08, Tiago Antao wrote:
Hi,

A serious problem that I have found with Galaxy integration with LDAP
is that it does not allow underscores in the user name, and that is
very common with production LDAP servers.

On 2016-08-08 09:01, Nicola Soranzo wrote:
Hi Miuki,
the file config/auth_conf.xml.sample contains examples and
documentation of possible values that you have to put in your
config/auth_conf.xml , unfortunately a lot depends on what LDAP/Active Directory server you are using and how it is configured. You may need to ask advice to the system administrators of your LDAP server. If you have specific questions/problems, feel free to ask here on the mailing
list and/or on the IRC channel.

Cheers,
Nicola

On 01/08/16 20:45, Yip, Miu ki wrote:
Hi,

I’m trying to configure a new instance of Galaxy and I want to use
LDAP for user authentication. I have taken a look at this wiki
page: https://wiki.galaxyproject.org/Admin/Config/ExternalUserAuth

I followed the instructions and when I looked into the
auth_conf.xml file, I was unsure of what exactly Galaxy is looking
for when trying to connect with LDAP. Are there specific options
that I must give it? May I ask how Galaxy uses LDAP to authenticate
users?

Thank you,
Miuki Yip
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