For more information, see Popup authentication. The end user's perspective: The user sees the PCClient program running. When the user prints a job, the client pops up a window requesting the user to enter a username and password. See Popup authentication. The explanation: The print event is performed as a generic user - For example, " macuser ", " student ", etc.
See Popup authentication for further details. Printers are hosted and shared off a Windows, Mac or Linux server. The Mac systems are set up to log in under a generic account name. Command-click the newly copied PCClient application in the Applications directory.
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Click the Users tab. The User List page is displayed. In the Advanced Options area, select the Unauthenticated user enable popup authentication check box. Verify that the PCClient program starts automatically.
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On the server's print queue, ensure that the job is displayed under the correct username. Charge the corresponding user for the job. Also check that the balance has changed to reflect the new balance in the PCClient program.
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In an authenticated domain environment, the identity of the user the user's username is known and verified at the time of log in. A request begins with a byte containing the request code, followed by the arguments to the request, and is terminated by an ASCII LF character. An LPD printer is identified by the IP address of the server machine and the queue name on that machine. Many different queue names may exist in one LPD server, with each queue having unique settings.
The LPR software is installed on the client device. The LPD software is stored on the printer or print server. This avoids the need for the popup authentication used in Scenario Two. The information included here is to help customers understand the issue and document suggested workarounds. It allows clients to send one or more print jobs to the server and perform administration such as querying the status of a printer, obtaining the status of print jobs, or cancelling individual print jobs.
IPP can run locally or over the Internet. Unlike other printing protocols, IPP also supports access control, authentication, and encryption, making it a much more capable and secure printing mechanism than older ones. Event notification for LPR and IPP based printing does not use the same set of underlying APIs and under some conditions the PaperCut print monitoring layer receives notification after the print job has started.
This means that some print jobs can start to print before the hold instruction is issued.
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This job is then suspended in a Paused Printing state i. The symptoms are generally not consistent, suggesting an underlying race condition bug in Windows. Things that can affect the problem include: Running the print server A print server is a system responsible for hosting print queues and sharing printer resources to desktops.
Users submit print jobs to a print server rather then directly to the printer itself. A print server can be a dedicated server but on many networks this server also performs other tasks, such as file serving on a virtual machine.
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Because the issue is in the underlying Windows print subsystem, it is not possible for PaperCut to quickly implement a reliable solution and Microsoft is unlikely to implement a fix to this legacy subsystem. If a site does experience this issue there are some steps that can help alleviate or fix the issue. Use the SMB protocol for Windows based print server queues. Note that using SMB can place some constraints on how users authenticate and how anonymous users are able to print at your site.
This is the recommended approach. Use two print queues. Queue A is virtual and queue B is the real queue attached to the physical printer.
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PaperCut then redirects the job to B on release. Managing virtual print queues is documented in section Find-Me printing and printer load balancing. Configure queue A to use a port with no printer e. If queue A is un-paused then the job will error, however, it can still be re-directed as needed. Macs set up in multi-user mode authenticating off a domain. Some systems running firewall software can block LPD printing.
On systems running firewall software, ensure that incoming connections from the local network are allowed on port In Address , enter the IP address of the server hosting the printers. Or any other solution to this problem? By the way ,the second user is from windows and is connecting through VNC.
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First item, you get two sessions max. Home Questions Tags Users Unanswered. Asked 6 months ago. Active 6 months ago. Viewed times. I'm trying to connect from windows to high sierra with another user on my mac that is working on it's own mac I'm trying to make my mac to have two users to work with it at the same time. Hamid Hamid 13 2 2 bronze badges. Force screensharing to open new session Are the changes to Lion's screen sharing documented anywhere publicly? Thanks for the reply,I've tried two vnc software. I'll try your reply and I'm tell the result.
I checked and the trick is that the first user must be logged in and then the second user tries to log in. But there is a problem with that which if you need to log in again via VNC ,You have to log out from your account first. Is there any alternative To make that happen.
I searched and there was a vine VNC but it's not running on High sierra.