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How to add a single users in all the 100 servers When there is no centralization for adding users. What would be the best way to add users in all the 100 systems

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closed as off-topic by Nathan C, Matthew Ife, Ward, HopelessN00b, mdpc Jul 9 '14 at 17:08

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Fix "there is no centralization for adding users" first. – Michael Hampton Jul 9 '14 at 13:26
Is implementing LDAP or NIS or some other centralized authentication scheme not an option? – John Jul 9 '14 at 13:27
a user should be able to login in from all the systems no centralization for adding users – user229588 Jul 9 '14 at 14:01
Well, if you can't add centralized authentication (LDPA, NIS, w/e), or centralized configuration management (ansible, puppet, chef, w/e), then in order to add a user on 100 servers... you'll have to add a user on 100 servers. – HopelessN00b Jul 9 '14 at 15:22

(This is not meant to be a full answer)

I've been working with Ansible lately. Love it or hate it, this is a perfect fit for exactly what you're attempting to ask.

With that assumption, these steps will work pretty darn quick.


$ git clone git://
$ cd ./ansible
$ source ./hacking/env-setup


Create an inventory file of your hosts

$ ansible all -m user -a "name=foo password=<crypted password here>"
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