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cupsd.conf(5)			  Apple Inc.			 cupsd.conf(5)


cupsd.conf - server configuration file for cups


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. Comment lines start with the # character. The configura- tion directives are intentionally similar to those used by the popular Apache web server software and are described below.


The following directives are understood by cupsd(8). Consult the on- line help for detailed descriptions: AccessLog filename AccessLog syslog Defines the access log filename. Allow all Allow none Allow Allow * Allow ip-address Allow ip-address/netmask Allow ip-address/mm Allow @IF(name) Allow @LOCAL Allows access from the named hosts or addresses. AuthClass User AuthClass Group AuthClass System Specifies the authentication class (User, Group, System) - this directive is deprecated. AuthGroupName group-name Specifies the authentication group - this directive is deprecated. AuthType None AuthType Basic AuthType BasicDigest AuthType Digest AuthType Negotiate Specifies the authentication type (None, Basic, BasicDigest, Digest, Negotiate) AutoPurgeJobs Yes AutoPurgeJobs No Specifies whether to purge job history data automatically when it is no longer required for quotas. BrowseAddress ip-address BrowseAddress @IF(name) BrowseAddress @LOCAL Specifies a broadcast address for outgoing printer information packets. BrowseAllow all BrowseAllow none BrowseAllow BrowseAllow * BrowseAllow ip-address BrowseAllow ip-address/netmask BrowseAllow ip-address/mm BrowseAllow @IF(name) BrowseAllow @LOCAL Allows incoming printer information packets from the named host or address. BrowseDeny all BrowseDeny none BrowseDeny BrowseDeny * BrowseDeny ip-address BrowseDeny ip-address/netmask BrowseDeny ip-address/mm BrowseDeny @IF(name) BrowseDeny @LOCAL Denies incoming printer information packets from the named host or address. BrowseInterval seconds Specifies the maximum interval between printer information broad- casts. BrowseOrder allow,deny BrowseOrder deny,allow Specifies the order of printer information access control (allow,deny or deny,allow) BrowsePoll host-or-ip-address Specifies a server to poll for printer information. BrowsePort port Specifies the port to listen to for printer information packets. BrowseProtocols [All] [CUPS] [DNSSD] [LDAP] [SLP] Specifies the protocols to use for printer browsing. BrowseLocalProtocols [All] [CUPS] [DNSSD] [LDAP] [SLP] Specifies the protocols to use for local printer browsing. BrowseRemoteProtocols [All] [CUPS] [DNSSD] [LDAP] [SLP] Specifies the protocols to use for remote printer browsing. BrowseRelay from-address to-address Specifies that printer information packets should be relayed from one host or network to another. BrowseShortNames Yes BrowseShortNames No Specifies whether remote printers will use short names ("printer") or not ("printer@server"). This option is ignored if more than one remote printer exists with the same name. BrowseTimeout seconds Specifies the maximum interval between printer information updates before remote printers will be removed from the list of available printers. Browsing Yes Browsing No Specifies whether or not remote printer browsing should be enabled. Classification banner Specifies the security classification of the server. ClassifyOverride Yes ClassifyOverride No Specifies whether to allow users to override the classification of individual print jobs. ConfigFilePerm mode Specifies the permissions for all configuration files that the scheduler writes. ConfigurationChangeRestriction all ConfigurationChangeRestriction root-only ConfigurationChangeRestriction none Specifies the degree of restriction for changes to cupsd.conf. Keywords dealing with filenames, paths, and users are security- sensitive. Changes to them via HTTP are forbidden by default ("all"). The value "none" removes any restriction altogether (note that this is unsafe). The value "root-only" allows only users authorised as user "root" to adjust security-sensitive configura- tion settings, but note that users adjusting settings using polkit (via cups-pk-helper) are authenticated as user "root". DataDir path Specified the directory where data files can be found. DefaultAuthType Basic DefaultAuthType BasicDigest DefaultAuthType Digest DefaultAuthType Negotiate Specifies the default type of authentication to use. DefaultCharset charset Specifies the default character set to use for text. DefaultLanguage locale Specifies the default language to use for text and web content. DefaultPolicy policy-name Specifies the default access policy to use. DefaultShared Yes DefaultShared No Specifies whether local printers are shared by default. Deny all Deny none Deny Deny * Deny ip-address Deny ip-address/netmask Deny ip-address/mm Deny @IF(name) Deny @LOCAL Denies access to the named host or address. DocumentRoot directory Specifies the root directory for the internal web server docu- ments. Encryption IfRequested Encryption Never Encryption Required Specifies the level of encryption that is required for a particu- lar location. ErrorLog filename ErrorLog syslog Specifies the error log filename. FatalErrors none FatalErrors all -kind [... -kind] FatalErrors kind [... kind] Specifies which errors are fatal, causing the scheduler to exit. "Kind" is "browse", "config", "listen", "log", or "permissions". FileDevice Yes FileDevice No Specifies whether the file pseudo-device can be used for new printer queues. FilterLimit limit Specifies the maximum cost of filters that are run concurrently. FilterNice nice-value Specifies the scheduling priority ("nice" value) of filters that are run to print a job. FontPath directory[:directory:...] Specifies the search path for fonts. Group group-name-or-number Specifies the group name or ID that will be used when executing external programs. HideImplicitMembers Yes HideImplicitMembers No Specifies whether to hide members of implicit classes. HostNameLookups Yes HostNameLookups No HostNameLookups Double Specifies whether or not to do reverse lookups on client addresses. ImplicitAnyClasses Yes ImplicitAnyClasses No Specifies whether or not to create implicit classes for local and remote printers, e.g. "AnyPrinter" from "Printer", "Printer@server1", and "Printer@server2". ImplicitClasses Yes ImplicitClasses No Specifies whether or not to create implicit classes from identical remote printers. Include filename Includes the named file. JobRetryInterval seconds Specifies the interval between retries of jobs in seconds. JobRetryLimit count Specifies the number of retries that are done for jobs. KeepAlive Yes KeepAlive No Specifies whether to support HTTP keep-alive connections. KeepAliveTimeout seconds Specifies the amount of time that connections are kept alive. Krb5Keytab filename Overrides the Kerberos key tab location. <Limit operations> ... </Limit> Specifies the IPP operations that are being limited inside a pol- icy. <Limit methods> ... </Limit> <LimitExcept methods> ... </LimitExcept> Specifies the HTTP methods that are being limited inside a loca- tion. LimitRequestBody Specifies the maximum size of any print job request. Listen ip-address:port Listen *:port Listen /path/to/domain/socket Listens to the specified address and port or domain socket path. <Location /path> ... </Location> Specifies access control for the named location. LogFilePerm mode Specifies the permissions for all log files that the scheduler writes. LogLevel alert LogLevel crit LogLevel debug2 LogLevel debug LogLevel emerg LogLevel error LogLevel info LogLevel none LogLevel notice LogLevel warn Specifies the logging level for the ErrorLog file. MaxClients number Specifies the maximum number of simultaneous clients to support. MaxClientsPerHost number Specifies the maximum number of simultaneous clients to support from a single address. MaxCopies number Specifies the maximum number of copies that a user can print of each job. MaxJobs number Specifies the maximum number of simultaneous jobs to support. MaxJobsPerPrinter number Specifies the maximum number of simultaneous jobs per printer to support. MaxJobsPerUser number Specifies the maximum number of simultaneous jobs per user to sup- port. MaxLogSize number-bytes Specifies the maximum size of the log files before they are rotated (0 to disable rotation) MaxRequestSize number-bytes Specifies the maximum request/file size in bytes (0 for no limit) Order allow,deny Order deny,allow Specifies the order of HTTP access control (allow,deny or deny,allow) PageLog filename PageLog syslog Specifies the page log filename. PassEnv variable [... variable] Passes the specified environment variable(s) to child processes. <Policy name> ... </Policy> Specifies access control for the named policy. Port number Specifies a port number to listen to for HTTP requests. PreserveJobFiles Yes PreserveJobFiles No Specifies whether or not to preserve job files after they are printed. PreserveJobHistory Yes PreserveJobHistory No Specifies whether or not to preserve the job history after they are printed. Printcap Printcap filename Specifies the filename for a printcap file that is updated auto- matically with a list of available printers (needed for legacy applications); specifying Printcap with no filename disables printcap generation. PrintcapFormat bsd PrintcapFormat solaris Specifies the format of the printcap file. PrintcapGUI PrintcapGUI gui-program-filename Specifies whether to generate option panel definition files on some operating systems. When provided with no program filename, disables option panel definition files. ReloadTimeout seconds Specifies the amount of time to wait for job completion before restarting the scheduler. RemoteRoot user-name Specifies the username that is associated with unauthenticated root accesses. RequestRoot directory Specifies the directory to store print jobs and other HTTP request data. Require group group-name-list Require user user-name-list Require valid-user Specifies that user or group authentication is required. RIPCache bytes Specifies the maximum amount of memory to use when converting images and PostScript files to bitmaps for a printer. Satisfy all Satisfy any Specifies whether all or any limits set for a Location must be satisfied to allow access. ServerAdmin Specifies the email address of the server administrator. ServerBin directory Specifies the directory where backends, CGIs, daemons, and filters may be found. ServerCertificate filename Specifies the encryption certificate to use. ServerKey filename Specifies the encryption key to use. ServerName hostname-or-ip-address Specifies the fully-qualified hostname of the server. ServerRoot directory Specifies the directory where the server configuration files can be found. ServerTokens Full ServerTokens Major ServerTokens Minimal ServerTokens Minor ServerTokens None ServerTokens OS ServerTokens ProductOnly Specifies what information is included in the Server header of HTTP responses. SetEnv variable value Set the specified environment variable to be passed to child pro- cesses. SSLListen Listens on the specified address and port for encrypted connec- tions. SSLOptions None SSLOptions [AllowRC4] [Allow SSL3] Sets SSL/TLS protocol options for encrypted connections. By default, CUPS only supports encryption using TLS v1.0 or higher using known secure cipher suites. The AllowRC4 option enables the 128-bit RC4 cipher suites, which are required for some older clients that do not implement newer ones. The AllowSSL3 option enables SSL v3.0, which is required for some older clients that do not support TLS v1.0. SSLPort Listens on the specified port for encrypted connections. SystemGroup group-name [group-name ...] Specifies the group(s) to use for System class authentication. TempDir directory Specifies the directory where temporary files are stored. Timeout seconds Specifies the HTTP request timeout in seconds. User user-name Specifies the user name or ID that is used when running external programs.


classes.conf(5), cupsd(8), mime.convs(5), mime.types(5), print- ers.conf(5), subscriptions.conf(5), http://localhost:631/help


Copyright 2007-2008 by Apple Inc. 2 January 2008 Common UNIX Printing System cupsd.conf(5)

1994 Man-cgi 1.15, Panagiotis Christias <>