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cups: Empty Basic password



Hello,

I am running a cups server which works as expected, but I just realized that 
the error log show a tremendous amount of entries:

root@home:~# tail /var/log/cups/error_log 
E [19/Nov/2020:16:14:00 +0100] [Client 49726] Empty Basic password. 
E [19/Nov/2020:16:14:00 +0100] [Client 49729] Empty Basic password. 
E [19/Nov/2020:16:14:00 +0100] [Client 49732] Empty Basic password. 
E [19/Nov/2020:16:14:01 +0100] [Client 49735] Empty Basic password. 
E [19/Nov/2020:16:14:01 +0100] [Client 49738] Empty Basic password. 
E [19/Nov/2020:16:14:01 +0100] [Client 49741] Empty Basic password. 
E [19/Nov/2020:16:14:01 +0100] [Client 49744] Empty Basic password. 
E [19/Nov/2020:16:14:01 +0100] [Client 49747] Empty Basic password. 
E [19/Nov/2020:16:14:02 +0100] [Client 49750] Empty Basic password. 
E [19/Nov/2020:16:14:02 +0100] [Client 49753] Empty Basic password. 
root@home:~# 

Digging further, I realized that cupsd keeps one core of the server busy

 PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                                                                                                                                                          
28032 root      20   0   82452  14572   5828 R  98.0   0.7  50:14.12 cupsd                                                                                                                                                                                                                            

The error log entries stops, if I poweroff another Debian system with cups 
running as a client

rd@h370:~$ cat /etc/cups/client.conf 
ServerName 192.168.7.1
rd@h370:~$ 

On the client side, I do not see corresponding log entries:

rd@h370:~$ cat /var/log/cups/error_log
E [19/Nov/2020:07:43:29 +0100] Missing value on line 1561 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:43:29 +0100] Missing value on line 1612 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:43:29 +0100] Missing value on line 2542 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:43:29 +0100] Missing value on line 5366 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:43:29 +0100] Missing value on line 5379 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:43:29 +0100] Missing value on line 5392 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:43:29 +0100] Missing value on line 6235 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:43:29 +0100] Missing value on line 6261 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:43:29 +0100] Missing value on line 6274 of /var/cache/cups/
job.cache.
E [19/Nov/2020:07:51:45 +0100] [Client 3] Returning IPP client-error-bad-
request for Create-Printer-Subscriptions (/) from localhost.
E [19/Nov/2020:11:59:23 +0100] [Client 5] Returning IPP client-error-bad-
request for Create-Printer-Subscriptions (/) from localhost.
E [19/Nov/2020:14:33:28 +0100] [Client 6] Returning IPP client-error-bad-
request for Create-Printer-Subscriptions (/) from localhost.
E [19/Nov/2020:15:52:09 +0100] [Client 16] Returning IPP client-error-bad-
request for Create-Printer-Subscriptions (/) from localhost.
rd@h370:~$ 

Is there anything wrong with my setup? As I wrote before, I see no functional 
problem.

Any advice or hint is welcome.

Thanks
Rainer


-- 
Rainer Dorsch
http://bokomoko.de/



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