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Web Option uses virtual terminals to access the IBM i - when a user initially accesses the IBM i using Web Option, the system assigns a virtual display device (normally called QPADEVnnnn, where nnnn is a number from 1 to 9999) to that Web Option session.
If a virtual display device description already exists and is not active (that is, it is not currently being used by an interactive job), Web Option uses that device description; otherwise, the system automatically configures a new virtual device (up to the maximum allowed by the QAUTOVRT system value). Thus, the QAUTOVRT system value effectively controls the maximum number of concurrent interactive jobs that are allowed. Consequently, if you are going to allow external users to access your IBM i through Web Option using the internet, you may need to update QAUTOVRT to a higher number.
Be aware that the higher the number of virtual terminals that can be auto-configured, the greater the potential security exposure of your system. For more details of the QAUTOVRT system value, see your IBM system manuals.
Although the shipped value of QAUTOVRT is 0, most systems have had this value set to a higher value (e.g. 999). To change the QAUTOVRT system value, use the CHGSYSVAL command:
CHGSYSVAL SYSVAL(QAUTOVRT) VALUE(*NOMAX)
Note: You must have *ALLOBJ authority to change the QAUTOVRT system value.
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