HP Web Jetadmin Software Manuale Utente Scaricare il pdf (Pagina 12)

During SQL authentication, the SQL username and password are hidden to prevent casual

observation. However, using HP Web Jetadmin on untrusted networks might be a concern to

some administrators.

Active Clients task module

The Active Clients task module can be activated and viewed from the Task Module Docking area or

from Application Management > Overview. This task module shows the clients who are logged in to

HP Web Jetadmin and the number of

active client applications that each

client is running. This feature helps the

administrator determine which clients

are logged in to the system prior to

running product updates or performing

tasks that might burden the system and

cause slow performance. A short

custom message can be sent to clients

using Tools > Broadcast Message,

which is available from Application

Management (Figure 9).

DEVICE SECURITY

In many environments, password policies require the device administrator to periodically reconfigure

the security credentials. HP Web Jetadmin is a powerful device management tool because it can

configure many devices at once. This saves administrators from having to contact each device

separately to assign configuration items such as passwords and other credentials.

Device passwords, community names, ports, and other credentials are used to prevent unauthorized

access. Even though an HP Web Jetadmin installation is secure, other HP Web Jetadmin installations

and other utilities can access devices. These can include the following:

• HP Web Jetadmin

• Telnet

• HP Embedded Web Server (EWS)

• Other SNMP utilities

The protocols that these and other utilities use include the following:

• SNMP over UDP—changes to PML objects

• RFU file through port 9100 over TCP—printer firmware upgrades

• PJL file through port 9100 over TCP—changes to PML objects

• PCL file through port 9100 over TCP—changes to PML objects

• NFS over TCP—changes to storage, such as a hard disk

In addition to providing additional security methods to prevent unwanted device configuration,

HP Web Jetadmin provides security against unwanted printing. For example, printing can occur to

printers using the following techniques:

• HP Standard Port Monitor

• HP Jetdirect port

Figure 9—Active Clients task module

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 18 19

Nessun commento

HP Web Jetadmin Software Manuale Utente Pagina 12