cupsd.conf

cupsd.conf(5) OpenPrinting cupsd.conf(5)

NAME

   cupsd.conf - server configuration file for cups

DESCRIPTION

   The cupsd.conf file configures the CUPS scheduler, cupsd(8).  It is normally located in the /etc/cups directory.  Each line in the file can be a configuration directive, a blank line,
   or a comment.  Configuration directives typically consist of a name and zero or more values separated by whitespace.  The configuration directive name and values are case-insensitive.
   Comment lines start with the # character.

TOP-LEVEL DIRECTIVES

   The following top-level directives are understood by cupsd(8):

   AccessLogLevel config

   AccessLogLevel actions

   AccessLogLevel all
        Specifies  the  logging level for the AccessLog file.  The "config" level logs when printers and classes are added, deleted, or modified and when configuration files are accessed
        or updated.  The "actions" level logs when print jobs are submitted, held, released, modified, or canceled, and any of the conditions for "config".  The "all" level logs all  re
        quests.  The default access log level is "actions".

   AutoPurgeJobs Yes

   AutoPurgeJobs No
        Specifies whether to purge job history data automatically when it is no longer required for quotas.  The default is "No".

   BrowseDNSSDSubTypes_subtype[,...]
        Specifies  a list of Bonjour sub-types to advertise for each shared printer.  For example, "BrowseDNSSDSubTypes _cups,_print" will tell network clients that both CUPS sharing and
        IPP Everywhere are supported.  The default is "_cups" which is necessary for printer sharing to work between systems using CUPS.

   BrowseLocalProtocols all

   BrowseLocalProtocols dnssd

   BrowseLocalProtocols none
        Specifies which protocols to use for local printer sharing.  The default is "dnssd" on systems that support Bonjour and "none" otherwise.

   BrowseWebIF Yes

   BrowseWebIF No
        Specifies whether the CUPS web interface is advertised.  The default is "No".

   Browsing Yes

   Browsing No
        Specifies whether shared printers are advertised.  The default is "No".

   DefaultAuthType Basic
        Specifies the default type of authentication to use.  The default is "Basic".

   DefaultEncryption Never

   DefaultEncryption IfRequested

   DefaultEncryption Required
        Specifies whether encryption will be used for authenticated requests.  The default is "Required".

   DefaultLanguage locale
        Specifies the default language to use for text and web content.  The default is "en".

   DefaultPaperSize Auto

   DefaultPaperSize None

   DefaultPaperSize sizename
        Specifies the default paper size for new print queues. "Auto" uses a locale-specific default, while "None" specifies there is no default paper size.  Specific size names are typ
        ically "Letter" or "A4".  The default is "Auto".  Note: The default paper size must use a size name from the PPD file and not a PWG self-describing media size name.

   DefaultPolicy policy-name
        Specifies the default access policy to use.  The default access policy is "default".

   DefaultShared Yes

   DefaultShared No
        Specifies whether local printers are shared by default.  The default is "Yes".

   DirtyCleanInterval seconds
        Specifies the delay for updating of configuration and state files.  A value of 0 causes the update to happen as soon as possible, typically within a few  milliseconds.   The  de
        fault value is "30".

   DNSSDHostNamehostname.example.com
        Specifies the fully-qualified domain name for the server that is used for Bonjour sharing.  The default is typically the server's ".local" hostname.

   ErrorPolicy abort-job
        Specifies that a failed print job should be aborted (discarded) unless otherwise specified for the printer.

   ErrorPolicy retry-current-job
        Specifies that a failed print job should be retried immediately unless otherwise specified for the printer.

   ErrorPolicy retry-job
        Specifies that a failed print job should be retried at a later time unless otherwise specified for the printer.

   ErrorPolicy stop-printer
        Specifies that a failed print job should stop the printer unless otherwise specified for the printer. The 'stop-printer' error policy is the default.

   FilterLimit limit
        Specifies  the  maximum  cost of filters that are run concurrently, which can be used to minimize disk, memory, and CPU resource problems.  A limit of 0 disables filter limiting.
        An average print to a non-PostScript printer needs a filter limit of about 200.  A PostScript printer needs about half that (100).  Setting the limit below these thresholds  will
        effectively limit the scheduler to printing a single job at any time.  The default limit is "0".

   FilterNice nice-value
        Specifies  the  scheduling priority ( nice(8) value) of filters that are run to print a job.  The nice value ranges from 0, the highest priority, to 19, the lowest priority.  The
        default is 0.

   HostNameLookups On

   HostNameLookups Off

   HostNameLookups Double
        Specifies whether to do reverse lookups on connecting clients.  The "Double" setting causes cupsd(8) to verify that the hostname resolved from the address matches one of the  ad
        dresses  returned for that hostname.  Double lookups also prevent clients with unregistered addresses from connecting to your server.  The default is "Off" to avoid the potential
        server performance problems with hostname lookups.  Only set this option to "On" or "Double" if absolutely required.

   IdleExitTimeout seconds
        Specifies the length of time to wait before shutting down due to inactivity.  The default is "60" seconds.  Note: Only applicable when cupsd(8) is run on-demand (e.g., with -l).

   JobKillDelay seconds
        Specifies the number of seconds to wait before killing the filters and backend associated with a canceled or held job.  The default is "30".

   JobRetryInterval seconds
        Specifies the interval between retries of jobs in seconds.  This is typically used for fax queues but can also be used with normal print queues whose error policy is  "retry-job"
        or "retry-current-job".  The default is "30".

   JobRetryLimit count
        Specifies  the number of retries that are done for jobs.  This is typically used for fax queues but can also be used with normal print queues whose error policy is "retry-job" or
        "retry-current-job".  The default is "5".

   KeepAlive Yes

   KeepAlive No
        Specifies whether to support HTTP keep-alive connections.  The default is "Yes".

   <Limit operation ...> ... </Limit>
        Specifies the IPP operations that are being limited inside a Policy section. IPP operation names are listed below in the section "IPP OPERATION NAMES".

   <Limit method ...> ... </Limit>

   <LimitExcept method ...> ... </LimitExcept>
        Specifies the HTTP methods that are being limited inside a Location section. HTTP method names are listed below in the section "HTTP METHOD NAMES".

   LimitRequestBody size
        Specifies the maximum size of print files, IPP requests, and HTML form data.  The default is "0" which disables the limit check.

   Listen ipv4-address:port

   Listen [ipv6-address]:port

   Listen *:port

   Listen /path/to/domain/socket
        Listens to the specified address and port or domain socket path for connections.  Multiple Listen directives can be provided to listen on multiple addresses.  The  Listen  direc
        tive  is  similar  to the Port directive but allows you to restrict access to specific interfaces or networks.  Note: "Listen *:port" and "Port port" effectively listen on all IP
        addresses, so you cannot combine them with Listen directives for explicit IPv4 or IPv6 addresses on the same port.

   <Location /path> ... </Location>
        Specifies access control for the named location.  Paths are documented below in the section "LOCATION PATHS".

   LogDebugHistory number
        Specifies the number of debugging messages that are retained for logging if an error occurs in a print job. Debug messages are logged regardless of the LogLevel setting.

   LogLevel none

   LogLevel emerg

   LogLevel alert

   LogLevel crit

   LogLevel error

   LogLevel warn

   LogLevel notice

   LogLevel info

   LogLevel debug

   LogLevel debug2
        Specifies the level of logging for the ErrorLog file.  The value "none" stops all logging while "debug2" logs everything.  The default is "warn".

   LogTimeFormat standard

   LogTimeFormat usecs
        Specifies the format of the date and time in the log files.  The value "standard" is the default and logs whole seconds while "usecs" logs microseconds.

   MaxClients number
        Specifies the maximum number of simultaneous clients that are allowed by the scheduler.  The default is "100".

   MaxClientsPerHost number
        Specifies the maximum number of simultaneous clients that are allowed from a single address.  The default is the MaxClients value.

   MaxCopies number
        Specifies the maximum number of copies that a user can print of each job.  The default is "9999".

   MaxHoldTime seconds
        Specifies the maximum time a job may remain in the "indefinite" hold state before it is canceled.  The default is "0" which disables cancellation of held jobs.

   MaxJobs number
        Specifies the maximum number of simultaneous jobs that are allowed.  Set to "0" to allow an unlimited number of jobs.  The default is "500".

   MaxJobsPerPrinter number
        Specifies the maximum number of simultaneous jobs that are allowed per printer.  The default is "0" which allows up to MaxJobs jobs per printer.

   MaxJobsPerUser number
        Specifies the maximum number of simultaneous jobs that are allowed per user.  The default is "0" which allows up to MaxJobs jobs per user.

   MaxJobTime seconds
        Specifies the maximum time a job may take to print before it is canceled.  Set to "0" to disable cancellation of "stuck" jobs.  The default is "10800" (3 hours).

   MaxLogSize size
        Specifies the maximum size of the log files before they are rotated.  The value "0" disables log rotation.  The default is "1048576" (1MB).

   MaxSubscriptions number
        Specifies the maximum number of simultaneous event subscriptions that are allowed.  Set to "0" to allow an unlimited number of subscriptions.  The default is "100".

   MaxSubscriptionsPerJob number
        Specifies the maximum number of simultaneous event subscriptions that are allowed per job.  The default is "0" which allows up to MaxSubscriptions subscriptions per job.

   MaxSubscriptionsPerPrinter number
        Specifies the maximum number of simultaneous event subscriptions that are allowed per printer.  The default is "0" which allows up to MaxSubscriptions subscriptions per printer.

   MaxSubscriptionsPerUser number
        Specifies the maximum number of simultaneous event subscriptions that are allowed per user.  The default is "0" which allows up to MaxSubscriptions subscriptions per user.

   MultipleOperationTimeout seconds
        Specifies the maximum amount of time to allow between files in a multiple file print job.  The default is "900" (15 minutes).

   <Policy name> ... </Policy>
        Specifies access control for the named policy.

   Port number
        Listens to the specified port number for connections.

   PreserveJobFiles Yes

   PreserveJobFiles No

   PreserveJobFiles seconds
        Specifies whether job files (documents) are preserved after a job is printed.  If a numeric value is specified, job files are preserved for the indicated number of seconds  after
        printing.  The default is "86400" (preserve 1 day).

   PreserveJobHistory Yes

   PreserveJobHistory No

   PreserveJobHistory seconds
        Specifies  whether  the  job history is preserved after a job is printed.  If a numeric value is specified, the job history is preserved for the indicated number of seconds after
        printing.  If "Yes", the job history is preserved until the MaxJobs limit is reached.  The default is "Yes".

   ReadyPaperSizes sizename[,...]
        Specifies a list of potential paper sizes that are reported as "ready" (loaded).  The actual list will only contain sizes that each printer supports.  The default is  "Letter,Le‐
        gal,Tabloid,4x6,Env10"  when  the default paper size is "Letter" and "A3,A4,A5,A6,EnvDL" otherwise.  Note: Paper sizes must use the size names from the PPD file and not PWG self-
        describing media size names.

   ReloadTimeout seconds
        Specifies the amount of time to wait for job completion before restarting the scheduler.  The default is "30".

   ServerAdmin email-address
        Specifies the email address of the server administrator.  The default value is "root@ServerName".

   ServerAlias hostname [ ... hostname ]

   ServerAlias *
        The ServerAlias directive is used for HTTP Host header validation when clients connect to the scheduler from external interfaces.  Using the special name "*" can expose your sys
        tem to known browser-based DNS rebinding attacks, even when accessing sites through a firewall.  If the auto-discovery of alternate names does not work, we recommend listing each
        alternate name with a ServerAlias directive instead of using "*".

   ServerName hostname
        Specifies the fully-qualified hostname of the server.  The default is the value reported by the hostname(1) command.

   ServerTokens None

   ServerTokens ProductOnly

   ServerTokens Major

   ServerTokens Minor

   ServerTokens Minimal

   ServerTokens OS

   ServerTokens Full
        Specifies what information is included in the Server header of HTTP responses.  "None" disables the Server header.  "ProductOnly" reports  "CUPS".   "Major"  reports  "CUPS/major
        IPP/2".   "Minor"  reports  "CUPS/major.minor  IPP/2.1".   "Minimal"  reports  "CUPS/major.minor.patch IPP/2.1".  "OS" reports "CUPS/major.minor.path (osname osversion) IPP/2.1".
        "Full" reports "CUPS/major.minor.path (osname osversion; architecture) IPP/2.1".  The default is "Minimal".

   SSLListen ipv4-address:port

   SSLListen [ipv6-address]:port

   SSLListen *:port
        Listens on the specified address and port for encrypted connections.

   SSLOptions [AllowDH] [AllowRC4] [AllowSSL3] [DenyCBC] [DenyTLS1.0] [MaxTLS1.0] [MaxTLS1.1] [MaxTLS1.2] [MaxTLS1.3] [MinTLS1.0] [MinTLS1.1] [MinTLS1.2] [MinTLS1.3]

   SSLOptions None
        Sets encryption options (only in /etc/cups/client.conf).  By default, CUPS only supports encryption using TLS v1.0 or higher using known secure cipher suites.   Security  is  re
        duced  when  Allow  options  are used.  Security is enhanced when Deny options are used.  The AllowDH option enables cipher suites using plain Diffie-Hellman key negotiation (not
        supported on systems using GNU TLS).  The AllowRC4 option enables the 128-bit RC4 cipher suites, which are required for some older clients.   The  AllowSSL3  option  enables  SSL
        v3.0,  which is required for some older clients that do not support TLS v1.0.  The DenyCBC option disables all CBC cipher suites.  The DenyTLS1.0 option disables TLS v1.0 support
        - this sets the minimum protocol version to TLS v1.1.  The MinTLS options set the minimum TLS version to support.  The MaxTLS options set the maximum TLS version to support.  Not
        all operating systems support TLS 1.3 at this time.

   SSLPort port
        Listens on the specified port for encrypted connections.

   StrictConformance Yes

   StrictConformance No
        Specifies whether the scheduler requires clients to strictly adhere to the IPP specifications.  The default is "No".

   Timeout seconds
        Specifies the HTTP request timeout.  The default is "900" (15 minutes).

   WebInterface yes

   WebInterface no
        Specifies whether the web interface is enabled.  The default is "No".

HTTP METHOD NAMES

   The following HTTP methods are supported by cupsd(8):

   GET  Used by a client to download icons and other printer resources and to access the CUPS web interface.

   HEAD Used by a client to get the type, size, and modification date of resources.

   OPTIONS
        Used by a client to establish a secure (SSL/TLS) connection.

   POST Used by a client to submit IPP requests and HTML forms from the CUPS web interface.

   PUT  Used by a client to upload configuration files.

IPP OPERATION NAMES

   The following IPP operations are supported by cupsd(8):

   CUPS-Accept-Jobs
        Allows a printer to accept new jobs.

   CUPS-Add-Modify-Class
        Adds or modifies a printer class.

   CUPS-Add-Modify-Printer
        Adds or modifies a printer.

   CUPS-Authenticate-Job
        Releases a job that is held for authentication.

   CUPS-Delete-Class
        Deletes a printer class.

   CUPS-Delete-Printer
        Deletes a printer.

   CUPS-Get-Classes
        Gets a list of printer classes.

   CUPS-Get-Default
        Gets the server default printer or printer class.

   CUPS-Get-Devices
        Gets a list of devices that are currently available.

   CUPS-Get-Document
        Gets a document file for a job.

   CUPS-Get-PPD
        Gets a PPD file.

   CUPS-Get-PPDs
        Gets a list of installed PPD files.

   CUPS-Get-Printers
        Gets a list of printers.

   CUPS-Move-Job
        Moves a job.

   CUPS-Reject-Jobs
        Prevents a printer from accepting new jobs.

   CUPS-Set-Default
        Sets the server default printer or printer class.

   Cancel-Job
        Cancels a job.

   Cancel-Jobs
        Cancels one or more jobs.

   Cancel-My-Jobs
        Cancels one or more jobs creates by a user.

   Cancel-Subscription
        Cancels a subscription.

   Close-Job
        Closes a job that is waiting for more documents.

   Create-Job
        Creates a new job with no documents.

   Create-Job-Subscriptions
        Creates a subscription for job events.

   Create-Printer-Subscriptions
        Creates a subscription for printer events.

   Get-Job-Attributes
        Gets information about a job.

   Get-Jobs
        Gets a list of jobs.

   Get-Notifications
        Gets a list of event notifications for a subscription.

   Get-Printer-Attributes
        Gets information about a printer or printer class.

   Get-Subscription-Attributes
        Gets information about a subscription.

   Get-Subscriptions
        Gets a list of subscriptions.

   Hold-Job
        Holds a job from printing.

   Hold-New-Jobs
        Holds all new jobs from printing.

   Pause-Printer
        Stops processing of jobs by a printer or printer class.

   Pause-Printer-After-Current-Job
        Stops processing of jobs by a printer or printer class after the current job is finished.

   Print-Job
        Creates a new job with a single document.

   Purge-Jobs
        Cancels one or more jobs and deletes the job history.

   Release-Held-New-Jobs
        Allows previously held jobs to print.

   Release-Job
        Allows a job to print.

   Renew-Subscription
        Renews a subscription.

   Restart-Job
        Reprints a job, if possible.

   Send-Document
        Adds a document to a job.

   Set-Job-Attributes
        Changes job information.

   Set-Printer-Attributes
        Changes printer or printer class information.

   Validate-Job
        Validates options for a new job.

LOCATION PATHS

   The following paths are commonly used when configuring cupsd(8):

   /    The path for all get operations (get-printers, get-jobs, etc.)

   /admin
        The path for all administration operations (add-printer, delete-printer, start-printer, etc.)

   /admin/conf
        The path for access to the CUPS configuration files (cupsd.conf, client.conf, etc.)

   /admin/log
        The path for access to the CUPS log files (access_log, error_log, page_log)

   /classes
        The path for all printer classes

   /classes/name
        The resource for the named printer class

   /jobs
        The path for all jobs (hold-job, release-job, etc.)

   /jobs/id
        The path for the specified job

   /printers
        The path for all printers

   /printers/name
        The path for the named printer

   /printers/name.png
        The icon file path for the named printer

   /printers/name.ppd
        The PPD file path for the named printer

DIRECTIVES VALID WITHIN LOCATION AND LIMIT SECTIONS

   The following directives may be placed inside Location and Limit sections in the cupsd.conf file:

   Allow all

   Allow none

   Allow host.domain.com

   Allow *.domain.com

   Allow ipv4-address

   Allow ipv4-address/netmask

   Allow ipv4-address/mm

   Allow [ipv6-address]

   Allow [ipv6-address]/mm

   Allow @IF(name)

   Allow @LOCAL
        Allows access from the named hosts, domains, addresses, or interfaces.  The @IF(name) form uses the current subnets configured for the named interface.  The @LOCAL form uses  the
        current  subnets  configured for all interfaces that are not point-to-point, for example Ethernet and Wi-Fi interfaces are used but DSL and VPN interfaces are not.  The Order di
        rective controls whether Allow lines are evaluated before or after Deny lines.

   AuthType None

   AuthType Basic

   AuthType Default
        Specifies the type of authentication required.  The value "Default" corresponds to the DefaultAuthType value.

   Deny all

   Deny none

   Deny host.domain.com

   Deny *.domain.com

   Deny ipv4-address

   Deny ipv4-address/netmask

   Deny ipv4-address/mm

   Deny [ipv6-address]

   Deny [ipv6-address]/mm

   Deny @IF(name)

   Deny @LOCAL
        Denies access from the named hosts, domains, addresses, or interfaces.  The @IF(name) form uses the current subnets configured for the named interface.  The @LOCAL form uses  the
        current  subnets  configured for all interfaces that are not point-to-point, for example Ethernet and Wi-Fi interfaces are used but DSL and VPN interfaces are not.  The Order di
        rective controls whether Deny lines are evaluated before or after Allow lines.

   Encryption IfRequested

   Encryption Never

   Encryption Required
        Specifies the level of encryption that is required for a particular location.  The default value is "IfRequested".

   Order allow,deny
        Specifies that access is denied by default. Allow lines are then processed followed by Deny lines to determine whether a client may access a particular resource.

   Order deny,allow
        Specifies that access is allowed by default. Deny lines are then processed followed by Allow lines to determine whether a client may access a particular resource.

   Require group group-name [ group-name ... ]
        Specifies that an authenticated user must be a member of one of the named groups.

   Require user {user-name|@group-name} ...
        Specifies that an authenticated user must match one of the named users or be a member of one of the named groups.  The group name "@SYSTEM" corresponds to the list of groups  de
        fined  by  the  SystemGroup  directive  in the cups-files.conf(5) file.  The group name "@OWNER" corresponds to the owner of the resource, for example the person that submitted a
        print job.  Note: The 'root' user is not special and must be granted privileges like any other user account.

   Require valid-user
        Specifies that any authenticated user is acceptable.

   Satisfy all
        Specifies that all Allow, AuthType, Deny, Order, and Require conditions must be satisfied to allow access.

   Satisfy any
        Specifies that any a client may access a resource if either the authentication (AuthType/Require) or address (Allow/Deny/Order) conditions are satisfied.  For example,  this  can
        be used to require authentication only for remote accesses.

DIRECTIVES VALID WITHIN POLICY SECTIONS

   The following directives may be placed inside Policy sections in the cupsd.conf file:

   JobPrivateAccess all

   JobPrivateAccess default

   JobPrivateAccess {user|@group|@ACL|@OWNER|@SYSTEM} ...
        Specifies  an  access  list  for a job's private values.  The "default" access list is "@OWNER @SYSTEM".  "@ACL" maps to the printer's requesting-user-name-allowed or requesting-
        user-name-denied values.  "@OWNER" maps to the job's owner.  "@SYSTEM" maps to the groups listed for the SystemGroup directive in the cups-files.conf(5) file.

   JobPrivateValues all

   JobPrivateValues default

   JobPrivateValues none

   JobPrivateValues attribute-name [ ... attribute-name ]
        Specifies the list of job values to make private.  The "default" values are "job-name", "job-originating-host-name", "job-originating-user-name", and "phone".

   SubscriptionPrivateAccess all

   SubscriptionPrivateAccess default

   SubscriptionPrivateAccess {user|@group|@ACL|@OWNER|@SYSTEM} ...
        Specifies an access list for a subscription's private values.  The "default" access list is "@OWNER @SYSTEM".  "@ACL" maps to the printer's  requesting-user-name-allowed  or  re‐
        questing-user-name-denied values.  "@OWNER" maps to the job's owner.  "@SYSTEM" maps to the groups listed for the SystemGroup directive in the cups-files.conf(5) file.

   SubscriptionPrivateValues all

   SubscriptionPrivateValues default

   SubscriptionPrivateValues none

   SubscriptionPrivateValues attribute-name [ ... attribute-name ]
        Specifies the list of subscription values to make private.  The "default" values are "notify-events", "notify-pull-method", "notify-recipient-uri", "notify-subscriber-user-name",
        and "notify-user-data".

DEPRECATED DIRECTIVES

   The following directives are deprecated and will be removed in a future release of CUPS:

   AuthType Negotiate
        Specifies Kerberos authentication is required.

   Classification banner
        Specifies the security classification of the server.  Any valid banner name can be used, including "classified", "confidential", "secret", "topsecret", and "unclassified", or the
        banner can be omitted to disable secure printing functions.  The default is no classification banner.

   ClassifyOverride Yes

   ClassifyOverride No
        Specifies whether users may override the classification (cover page) of individual print jobs using the "job-sheets" option.  The default is "No".

   DefaultAuthType Negotiate
        Specifies that Kerberos authentication is required by default.

   GSSServiceName name
        Specifies the service name when using Kerberos authentication.  The default service name is "http."

   PageLogFormat format-string
        Specifies  the  format  of  PageLog lines.  Sequences beginning with percent (%) characters are replaced with the corresponding information, while all other characters are copied
        literally.  The following percent sequences are recognized:

            "%%" inserts a single percent character.
            "%{name}" inserts the value of the specified IPP attribute.
            "%C" inserts the number of copies for the current page.
            "%P" inserts the current page number.
            "%T" inserts the current date and time in common log format.
            "%j" inserts the job ID.
            "%p" inserts the printer name.
            "%u" inserts the username.

        The default is the empty string, which disables page logging.  The string "%p %u %j %T %P %C %{job-billing} %{job-originating-host-name} %{job-name} %{media} %{sides}" creates  a
        page  log  with  the standard items.  Use "%{job-impressions-completed}" to insert the number of pages (sides) that were printed, or "%{job-media-sheets-completed}" to insert the
        number of sheets that were printed.

NOTES

   File, directory, and user configuration directives that used to be allowed in the cupsd.conf file are now stored in the cups-files.conf(5) file instead in  order  to  prevent  certain
   types of privilege escalation attacks.

   The  scheduler MUST be restarted manually after making changes to the cupsd.conf file.  On Linux this is typically done using the systemctl(8) command, while on macOS the launchctl(8)
   command is used instead.

   The @LOCAL macro name can be confusing since the system running cupsd often belongs to a different set of subnets from its clients.

CONFORMING TO

   The cupsd.conf file format is based on the Apache HTTP Server configuration file format.

EXAMPLES

   Log everything with a maximum log file size of 32 megabytes:

       AccessLogLevel all
       LogLevel debug2
       MaxLogSize 32m

   Require authentication for accesses from outside the 10. network:

       <Location />
       Order allow,deny
       Allow from 10./8
       AuthType Basic
       Require valid-user
       Satisfy any
       </Location>

SEE ALSO

   classes.conf(5), cups-files.conf(5), cupsd(8), mime.convs(5), mime.types(5), printers.conf(5), subscriptions.conf(5), CUPS Online Help (http://localhost:631/help)

COPYRIGHT

   Copyright © 2020-2024 by OpenPrinting.

2021-10-01 CUPS cupsd.conf(5)