[cups] cups-lpd: Authentication failure

[Helge Blischke]

> Am 26.02.2019 um 14:24 schrieb Daniel Spannbauer <ds at marco.de>:
> 
> Hello,
> 
> 
> we have some old systems where we need to print via cups-lpd (Thank you,
> SAP).
> 
> On one machine I can't print, I always get an authentication error.
> 
> 
> log says:
> 
> Feb 26 14:22:02 zeus cups-lpd[11319]: Connection from nemesis (IPv4
> 10.1.1.6)
> Feb 26 14:22:02 zeus cups-lpd[11319]: Receive print job for barcode_h2
> Feb 26 14:22:03 zeus cups-lpd[11319]: Print file - job ID = 224148
> Feb 26 14:22:03 zeus cups-lpd[11319]: Unable to send document - Unauthorized
> Feb 26 14:22:03 zeus cups-lpd[11319]: Closing connection
> 
> 
> D [26/Feb/2019:14:23:10 +0100] cupsdAcceptClient: 9 from localhost:631
> (IPv6)
> D [26/Feb/2019:14:23:10 +0100] cupsdReadClient: 9 POST / HTTP/1.1
> D [26/Feb/2019:14:23:10 +0100] cupsdSetBusyState: Active clients and
> dirty files
> D [26/Feb/2019:14:23:10 +0100] cupsdAuthorize: No authentication data
> provided.
> D [26/Feb/2019:14:23:10 +0100] cupsdReadClient: 9 1.1
> Get-Printer-Attributes 1
> D [26/Feb/2019:14:23:10 +0100] Get-Printer-Attributes
> ipp://localhost/printers/barcode_h2
> D [26/Feb/2019:14:23:10 +0100] Returning IPP successful-ok for
> Get-Printer-Attributes (ipp://localhost/printers/barcode_h2) from localhost
> D [26/Feb/2019:14:23:10 +0100] cupsdSetBusyState: Dirty files
> D [26/Feb/2019:14:23:10 +0100] cupsdReadClient: 9 POST
> /printers/barcode_h2 HTTP/1.1
> D [26/Feb/2019:14:23:10 +0100] cupsdSetBusyState: Active clients and
> dirty files
> D [26/Feb/2019:14:23:10 +0100] cupsdAuthorize: No authentication data
> provided.
> D [26/Feb/2019:14:23:10 +0100] cupsdReadClient: 9 1.1 Create-Job 1
> D [26/Feb/2019:14:23:10 +0100] Create-Job
> ipp://localhost/printers/barcode_h2
> D [26/Feb/2019:14:23:10 +0100] cupsdMarkDirty(----J-)
> D [26/Feb/2019:14:23:10 +0100] add_job: requesting-user-name="DS"
> I [26/Feb/2019:14:23:10 +0100] [Job 224149] Adding start banner page "none".
> D [26/Feb/2019:14:23:10 +0100] Discarding unused job-created event...
> I [26/Feb/2019:14:23:10 +0100] [Job 224149] Queued on "barcode_h2" by "DS".
> D [26/Feb/2019:14:23:10 +0100] Returning IPP successful-ok for
> Create-Job (ipp://localhost/printers/barcode_h2) from localhost
> D [26/Feb/2019:14:23:10 +0100] cupsdSetBusyState: Dirty files
> D [26/Feb/2019:14:23:10 +0100] cupsdReadClient: 9 POST /jobs/224149 HTTP/1.1
> D [26/Feb/2019:14:23:10 +0100] cupsdSetBusyState: Active clients and
> dirty files
> D [26/Feb/2019:14:23:10 +0100] cupsdAuthorize: No authentication data
> provided.
> D [26/Feb/2019:14:23:10 +0100] cupsdIsAuthorized: username=""
> D [26/Feb/2019:14:23:10 +0100] cupsdSendHeader: 9 WWW-Authenticate:
> Basic realm="CUPS"
> D [26/Feb/2019:14:23:10 +0100] cupsdCloseClient: 9
> D [26/Feb/2019:14:23:10 +0100] cupsdSetBusyState: Dirty files
> D [26/Feb/2019:14:23:19 +0100] cupsdAcceptClient: 9 from localhost:631
> (IPv6)
> D [26/Feb/2019:14:23:19 +0100] cupsdReadClient: 9 POST / HTTP/1.1
> D [26/Feb/2019:14:23:19 +0100] cupsdSetBusyState: Active clients and
> dirty files
> D [26/Feb/2019:14:23:19 +0100] cupsdAuthorize: No authentication data
> provided.
> D [26/Feb/2019:14:23:19 +0100] cupsdReadClient: 9 1.1 CUPS-Get-Printers 1
> D [26/Feb/2019:14:23:19 +0100] CUPS-Get-Printers
> D [26/Feb/2019:14:23:19 +0100] Returning IPP successful-ok for
> CUPS-Get-Printers (no URI) from localhost
> D [26/Feb/2019:14:23:19 +0100] cupsdSetBusyState: Dirty files
> D [26/Feb/2019:14:23:19 +0100] cupsdReadClient: 9 POST / HTTP/1.1
> D [26/Feb/2019:14:23:19 +0100] cupsdSetBusyState: Active clients and
> dirty files
> D [26/Feb/2019:14:23:19 +0100] cupsdAuthorize: No authentication data
> provided.
> D [26/Feb/2019:14:23:19 +0100] cupsdReadClient: 9 1.1 CUPS-Get-Classes 1
> D [26/Feb/2019:14:23:19 +0100] CUPS-Get-Classes
> D [26/Feb/2019:14:23:19 +0100] Returning IPP successful-ok for
> CUPS-Get-Classes (no URI) from localhost
> D [26/Feb/2019:14:23:19 +0100] cupsdSetBusyState: Dirty files
> D [26/Feb/2019:14:23:19 +0100] cupsdReadClient: 9 WAITING Closing on EOF
> D [26/Feb/2019:14:23:19 +0100] cupsdCloseClient: 9
> 
> 
> Because of some former errors I configured a lot at the
> permissions...which permissions are needed to print wie cups-lpd?
> 
> 
> Regards
> 
> 
> Daniel
> 
> 

Please tell the OS in question and how cups-lpd is configured (intend, xinetd, or systems)

Helge