ADC

How to reset root administrator (nsroot) password

June 3, 2024

Contributed by:

C C H

The NetScaler root administrator (nsroot) account provides complete access to all ADC features. So, to preserve security, the administrative account must be used only if necessary.

As an admin, the recommendation is to change your password. If you forget your password, you must first reset to the default one and then change it to a new password.

As a nsroot administrator, to reset your password, you must log on to your appliance and change the password. However, if you do not remember the password, you can reboot the appliance in single user mode. Mount the file system in read/write mode, and then remove the NetScaler entry from the ns.conf file. As a final step, reboot and log on to your appliance with the default one and then set a new password.

Complete the following steps to reset your root administrator password:

Connect a computer to the console port of the NetScaler and log on.

Note:

You cannot log on by using SSH to do this procedure; you must connect directly to the appliance.
Reboot the NetScaler.
Press CTRL+C when the following message appears:

Press [Ctrl-C] for command prompt, or any other key to boot immediately. Booting [kernel] in # seconds.
Run the following command to start the NetScaler in a single user mode: boot -s

After the appliance boots, it displays the following message:

Enter full path name of shell or RETURN for /bin/sh:
Press ENTER to display the # prompt, and type the following commands to mount the file systems:
1. Run the following command to check the disk consistency:
  
  fsck_ufs /dev/ada0s1a
  
  Note:
  
  Your flash drive has a specific device name depending on your NetScaler. Run the following command at the ADC CLI and copy the name ending with “1a.”
  
  gpart show -p
  
  For example,
  
  For more information, see CTX124609 article.
2. Access the dev directory and enter ‘ls’ to check the drive details.
```
cd /dev/ada0s1a

ls

```
3. Run the following command to display the mounted partitions:
  
  df
  
  Note:
  
  If the flash partition is not listed, you must mount it manually.
4. Run the following command to mount the flash drive:
  
  mount /dev/ada0s1a /flash
Run the following command to change to the nsconfig directory:

cd /flash/nsconfig
Run the following commands to rewrite the ns.conf file and remove the set of system commands defaulting to the admin:
1. Run the following command to create a configuration file that does not have commands defaulting to the administrator:
  
  grep –v “set system user nsroot” ns.conf > new.conf
2. Run the following command to make a backup of the existing configuration file:
  
  mv ns.conf old.ns.conf
3. Run the following command to rename the new.conf file to ns.conf:
  
  mv new.conf ns.conf
Run the following command to reboot the NetScaler:

reboot
Log on using the default administrator credentials. NetScaler prompts you to replace the default nsroot password with a new password.

Note:

To use the “?” character in a password string, precede this character with the \ character.

For example, yourexamplepasswd? is set for the administrator account after you perform the following operation:

> set system user nsroot yourexamplepasswd\?
Once the new password is set, save the configuration using the save ns config command.

Note:

For resetting a forgotten (nsroot) password in a high availability setup, it is recommended to shut down the peer node. If the peer node is active, the password is overwritten, as the config sync is triggered when the node comes up after reboot.

Also, read article, CTX224027 to know how secure SSH access to NetScaler appliance works.

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How to reset root administrator (nsroot) password

June 3, 2024

Contributed by:

C C H

June 3, 2024

Contributed by:

C C H

How to reset root administrator (nsroot) password

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