cupsd-logs man page on DragonFly
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cupsd-logs(5) Apple Inc. cupsd-logs(5)
NAME
cupsd-logs - cupsd log files (access_log, error_log, and page_log)
DESCRIPTION
cupsd(8) normally maintains three log files: access_log to track
requests that are submitted to the scheduler, error_log to track
progress and errors, and page_log to track pages that are printed.
Configuration directives in cupsd.conf(5) and cups-files.conf(5) con‐
trol what information is logged and where it is stored.
ACCESS LOG FILE FORMAT
The access_log file lists each HTTP resource that is accessed by a web
browser or client. Each line is in an extended version of the so-
called "Common Log Format" used by many web servers and web reporting
tools:
host group user date-time "method resource version" status bytes
ipp-operation ipp-status
For example:
10.0.1.2 - - [01/Dec/2005:21:50:28 +0000] "POST / HTTP/1.1" 200 317
CUPS-Get-Printers successful-ok-ignored-or-substituted-attributes
localhost - - [01/Dec/2005:21:50:32 +0000] "GET /admin HTTP/1.1"
200 0 - -
localhost - - [01/Dec/2005:21:50:32 +0000] "POST / HTTP/1.1"
200 157 CUPS-Get-Printers
successful-ok-ignored-or-substituted-attributes
localhost - - [01/Dec/2005:21:50:32 +0000] "POST / HTTP/1.1"
200 1411 CUPS-Get-Devices -
localhost - - [01/Dec/2005:21:50:32 +0000] "GET /admin HTTP/1.1"
200 6667 - -
The host field will normally only be an IP address unless you have
enabled the HostNameLookups directive in the cupsd.conf file or if the
IP address corresponds to your local machine.
The group field always contains "-".
The user field is the authenticated username of the requesting user.
If no username and password is supplied for the request then this field
contains "-".
The date-time field is the date and time of the request in local time
and is in the format "[DD/MON/YYYY:HH:MM:SS +ZZZZ]".
The method field is the HTTP method used: "GET", "HEAD", "OPTIONS",
"POST", or "PUT". "GET" requests are used to get files from the
server, both for the web interface and to get configuration and log
files. "HEAD" requests are used to get information about a resource
prior to a "GET". "OPTIONS" requests are used to upgrade connections
to TLS encryption. "POST" requests are used for web interface forms
and IPP requests. "PUT" requests are used to upload configuration
files.
The resource field is the filename of the requested resource.
The version field is the HTTP specification version used by the client.
For CUPS clients this will always be "HTTP/1.1".
The status field contains the HTTP result status of the request, as
follows:
200 Successful operation.
201 File created/modified successfully.
304 The requested file has not changed.
400 Bad HTTP request; typically this means that you have a mali‐
cious program trying to access your server.
401 Unauthorized, authentication (username + password) is
required.
403 Access is forbidden; typically this means that a client tried
to access a file or resource they do not have permission to
access.
404 The file or resource does not exist.
405 URL access method is not allowed; typically this means you
have a web browser using your server as a proxy.
413 Request too large; typically this means that a client tried
to print a file larger than the MaxRequestSize allows.
426 Upgrading to TLS-encrypted connection.
500 Server error; typically this happens when the server is
unable to open/create a file - consult the error_log file for
details.
501 The client requested encryption but encryption support is not
enabled/compiled in.
505 HTTP version number not supported; typically this means that
you have a malicious program trying to access your server.
The bytes field contains the number of bytes in the request. For POST
requests the bytes field contains the number of bytes of non-IPP data
that is received from the client.
The ipp-operation field contains either "-" for non-IPP requests or the
IPP operation name for POST requests containing an IPP request.
The ipp-status field contains either "-" for non-IPP requests or the
IPP status code name for POST requests containing an IPP response.
ERROR LOG FILE FORMAT
The error_log file lists messages from the scheduler - errors, warn‐
ings, etc. The LogLevel directive in the cupsd.conf(5) file controls
which messages are logged:
level date-time message
For example:
I [20/May/1999:19:18:28 +0000] [Job 1] Queued on 'DeskJet' by 'mike'.
D [20/May/1999:19:18:28 +0000] [Job 1] argv[0]="DeskJet"
D [20/May/1999:19:18:28 +0000] [Job 1] argv[1]="1"
D [20/May/1999:19:18:28 +0000] [Job 1] argv[2]="mike"
D [20/May/1999:19:18:28 +0000] [Job 1] argv[3]="myjob"
D [20/May/1999:19:18:28 +0000] [Job 1] argv[4]="1"
D [20/May/1999:19:18:28 +0000] [Job 1] argv[5]="media=
na_letter_8.5x11in sides=one-sided"
D [20/May/1999:19:18:28 +0000] [Job 1] argv[6]="/var/spool/cups/
d000001-001"
I [20/May/1999:19:21:02 +0000] [Job 2] Queued on 'DeskJet' by 'mike'.
I [20/May/1999:19:22:24 +0000] [Job 2] Canceled by 'mike'.
The level field contains the type of message:
A Alert message (LogLevel alert)
C Critical error message (LogLevel crit)
D Debugging message (LogLevel debug)
d Detailed debugging message (LogLevel debug2)
E Normal error message (LogLevel error)
I Informational message (LogLevel info)
N Notice message (LogLevel notice)
W Warning message (LogLevel warn)
X Emergency error message (LogLevel emerg)
The date-time field contains the date and time of when the page started
printing. The format of this field is identical to the data-time field
in the access_log file.
The message field contains a free-form textual message. Messages from
job filters are prefixed with "[Job NNN]" where "NNN" is the job ID.
PAGE LOG FILE FORMAT
The page_log file lists each page or group of pages that are sent to a
printer. By default, each line contains the following information:
printer user job-id date-time page-number num-copies job-billing
job-originating-host-name job-name media sides
printer user job-id date-time total num-impressions job-billing
job-originating-host-name job-name media sides
For example the entries for a two page job called "myjob" might look
like:
DeskJet root 1 [20/May/1999:19:21:05 +0000] 1 1 acme-123
localhost myjob na_letter_8.5x11in one-sided
DeskJet root 1 [20/May/1999:19:21:05 +0000] 2 1 acme-123
localhost myjob na_letter_8.5x11in one-sided
DeskJet root 1 [20/May/1999:19:21:06 +0000] total 2 acme-123
localhost myjob na_letter_8.5x11in one-sided
The PageLogFormat directive in the cupsd.conf(5) file can be used to
change this information.
The printer field contains the name of the printer that printed the
page. If you send a job to a printer class, this field will contain
the name of the printer that was assigned the job.
The user field contains the name of the user (the IPP requesting-user-
name attribute) that submitted this file for printing.
The job-id field contains the job number of the page being printed.
The date-time field contains the date and time of when the page started
printing. The format of this field is identical to the data-time field
in the access_log file.
The page-number and num-copies fields contain the page number and num‐
ber of copies being printed of that page. For printers that cannot
produce copies on their own, the num-copies field will always be 1.
Lines containing the keyword "total" have a num-impressions field
instead which provides the total number of impressions (sides) that
have been printed on for the job.
The job-billing field contains a copy of the job-billing or job-
account-id attributes provided with the IPP Create-Job or Print-Job
requests or "-" if neither was provided.
The job-originating-host-name field contains the hostname or IP address
of the client that printed the job.
The job-name field contains a copy of the job-name attribute provided
with the IPP Create-Job or Print-Job requests or "-" if none was pro‐
vided.
The media field contains a copy of the media or media-col/media-size
attribute provided with the IPP Create-Job or Print-Job requests or "-"
if none was provided.
The sides field contains a copy of the sides attribute provided with
the IPP Create-Job or Print-Job requests or "-" if none was provided.
SEE ALSO
cupsd(8), cupsd.conf(5), cups-files.conf(5), CUPS Online Help
(http://localhost:631/help)
COPYRIGHT
Copyright © 2007-2014 by Apple Inc.
11 June 2014 CUPS cupsd-logs(5)
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