All devices and configuration options outside of the Group Restriction Type are secured from unauthorized access.

Clear the Credentials

Global credentials are credentials that HP Web Jetadmin uses for any device; they are an easy way for you to enter common credentials up front. Global credentials can be set for SNMPv1 Get Community Name, SNMPv1 Set Community Name, SNMPv3 Credentials, and EWS Password. If these credentials have been set, and device operations (for example, device configuration) require credentials, then the global credential will be tried. If the operation succeeds for the devices with the global credential, that global credential will be stored with the device. It still remains a global credential for other devices, but now that specific device has a working credential stored with it.

For example: User “A” enters global credentials for SNMPv1 Get Community Name as “mine” and “yours”. User “B” tries to interact with device “X”, which has a community name already set. HP Web Jetadmin first tries global credentials “yours” and “mine”; “yours” works. “Yours” is the stored as a regular credential for device “X”. The next time any user tries to interact with device “X”, HP Web Jetadmin will use the regular credential for that device (which is now “yours”) and will ignore any global credentials. However, if the regular credential “yours” becomes out of date, this process starts over again.

Following are steps to configure this option:

1.On the top menu bar, access Tools > Options > Shared > Credentials > General.

2.Configure the desired settings:

●Clear global credentials: Clears every temporary, global, device-specific credential.

●Clear all stored credentials: Clears every temporary, global, device-specific credential.

3.You must then confirm or cancel your request.

Manage the Global SNMPv1 Get Community Names

The SNMP Get Community Name object is configurable from within security settings. It can actually cause a device to disappear. For example:

User A is running an instance of HP Web Jetadmin known as Web Jetadmin A. This user is managing a set of devices that are also being managed by User B. User B is running another copy of HP Web Jetadmin known as Web Jetadmin B. This B copy of HP Web Jetadmin is being used at the help desk.

User B tries to provide a measure of security by changing the default Get Community Name on the set of devices from public to private using HP Web Jetadmin. User A opens HP Web Jetadmin and notices that

all the devices have become non-responsive and show only a device communication error. Quick

Device Discovery does not help. Upon checking the printer itself, User A finds it to be powered on. User A can also reach the printer web server interface through a browser.

CAUTION: Changing the Get Community Name can cause devices to become unresponsive to management applications such as HP Web Jetadmin. The SNMP protocol will no longer respond to public queries and

other management applications on the network will not be able to communicate with these devices.

Following are steps to configure this option:

1.On the top menu bar, access Tools > Options > Shared > Credentials > Device > SNMPv1 Get Community Name.

2.To add a community name, click Add and type the community name. Enter an associated (or easier) name in Remember credential as and click OK.

3.To remove a Get Community Name, click Remove.

48 Chapter 2 Introduction to HP Web Jetadmin

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