Emerson ATCA-S201 Manuel D’Utilisation

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RTM-ATCA-SXXX Overview 
6806800H62B 
ATCA‐S201 Installation and Use Guide 
 
23 
3.1.3  Linux serial console shell window 
If the boot is not interrupted and has completed, the RS232 port accepts 
administrator login for Linux shell access, and access to command line configuration 
tools.   
After successful login, the user may run any of the command line configuration tools 
presented in section 3.4.5.  
3.2  Default blade login accounts and passwords 
The ATCA-S201 includes two built-in user accounts for maintenance and 
management activities.  Emerson recommends that administrators change the 
default passwords listed below for security purposes. 
Table 6 Built-in user accounts included on a new ATCA-S201 
User account 
Default 
password 
Description 
admin 
admin 
The admin account was created for blade management activities.  
This account should be used for all management and configuration 
activities.  Management logins may be performed via (1) Serial 
console RS232, (2) ssh or (3) secure html on any Ethernet port. 
root 
root  
The root account has master privileges with absolute power to 
modify the blades Linux OS in any way desired.   
It is unadvisable to use root as the normal user account because 
simple typographical errors,  accidental file deletions, or generating 
unintentionally restrictive file permissions could render the blade 
in-operable, requiring the factory reset procedure.  For normal 
activities, Emerson encourages using the admin user account and 
judicious use of the su command only when root privileges are 
really needed.  
3.2.1  Password change procedure 
The login password may be changed using the linux passwd command.  For 
example, if logged in as root, the password change procedure is shown: 
 
#passwd  
Changing password for root 
Enter the new password (minimum of 5, maximum of 8 characters) 
Please use a combination of upper and lower case letters and numbers. 
Enter new password: xxxxxxx 
Re-enter new password: xxxxxxx 
Password changed. 
3.2.2  Password recovery procedure 
In the event that the administrator login “root” is lost or forgotten, it is possible to 
clear it using jumpers provided on the ATCA-S201.  The jumper location along with