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Chapter 1
Site Planning
1 - 34
If the proxy-username has spaces or a pound-sign (#) character in it, you
must enclose it in quotation marks. Enclose only the username, not the
entire
DOMAIN
\
proxy-username
string. For example:
MYDOMAIN\”random
user”
==
root
#
correct
is correct, but
“MYDOMAIN\random
user”
==
root
#
incorrect
is incorrect.
As the final example, this line maps a Windows user, MEDARCH\jqpublic,
to root:
MEDARCH\jqpublic
==
root
EMC Best Practices: Creating the Proxy-User Account
EMC Celerra servers require a new, unused account for a proxy-user,
immediately mapped to
root
on the UNIX side. If a client has already
authenticated with a particular username and password, it would be
prohibitively difficult to re-map the username to
root
on an EMC. EMC
Release 5.5.24.2 introduces a command to resolve this problem; these
instructions apply to prior releases.
Start by creating a new Windows account for the proxy user. Remember to
add it to the Backup Operator’s or Administrator’s group on the EMC, or
give it equivalent privileges. Then map the above user to
root
on the UNIX
side, as described below.
From the EMC CLI, use the following command to get a copy of the UNIX
“passwd” file:
server_file
data-mover
‐
get
passwd
passwd.new
where
data-mover
identifies the data mover behind the ARX.
This places copy of the passwd file in a local file, “passwd.new.” Edit this
file and add the following line to the bottom:
username
::0:0:
anything
:
home
‐
dir
:
path
‐
to
‐
shell
where
username
is the name for the proxy-user account that you created
from Windows. The two zeros in the third and fourth fields are the
required UID and GID for
root
. The values for the remaining fields are
outside the scope of this document; you can use
man 5 passwd
from
the EMC CLI to access the EMC documentation.
Then use the following command to install the passwd.new file and put it
into service:
server_file
data-mover
‐
put
passwd.new
passwd
For example, the following command sequence accesses the CLI of an EMC
Celerra and maps the “jqpublic” user to
root
. (The name of the data mover is
“server_2” in this example.)
rh1:/#
ssh
password:
password
Last
login:
Thu
Mar
22
09:37:42
2007
from
juser.wwmed.com
EMC
Celerra
Control
Station
Linux
Mon
Nov
20
12:42:47
EST
2006
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