统信桌面操作系统专业版V20（1070）
Linux uos 5.10.97-arm64-desktop

uos基础 cupsd.conf 查看打印服务的配置文件

root@uos:/var/log/cups# cat /etc/cups/cupsd.conf 
#
# Configuration file for the CUPS scheduler.  See "man cupsd.conf" for a
# complete description of this file.
#

# Log general information in error_log - change "warn" to "debug"
# for troubleshooting...
LogLevel warn
PageLogFormat

# Specifies the maximum size of the log files before they are rotated.  The value "0" disables log rotation.
MaxLogSize 0

# Default error policy for printers
ErrorPolicy retry-job

# Only listen for connections from the local machine.
Listen localhost:631
Listen /run/cups/cups.sock

# Show shared printers on the local network.
Browsing Yes
BrowseLocalProtocols dnssd

# Default authentication type, when authentication is required...
DefaultAuthType Basic

# Web interface setting...
WebInterface Yes

# Timeout after cupsd exits if idle (applied only if cupsd runs on-demand - with -l)
IdleExitTimeout 60

# Restrict access to the server...

  Order allow,deny


# Restrict access to the admin pages...

  Order allow,deny


# Restrict access to configuration files...

  AuthType Default
  Require user @SYSTEM
  Order allow,deny


# Restrict access to log files...

  AuthType Default
  Require user @SYSTEM
  Order allow,deny


# Set the default printer/job policies...

  # Job/subscription privacy...
  JobPrivateAccess default
  JobPrivateValues default
  SubscriptionPrivateAccess default
  SubscriptionPrivateValues default

  # Job-related operations must be done by the owner or an administrator...
  
    Order deny,allow
  

  
    Require user @OWNER @SYSTEM
    Order deny,allow
  

  
    AuthType Default
    Require user @OWNER @SYSTEM
    Order deny,allow
  

  # All administration operations require an administrator to authenticate...
  
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  

  # All printer operations require a printer operator to authenticate...
  
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  

  # Only the owner or an administrator can cancel or authenticate a job...
  
    Require user @OWNER @SYSTEM
    Order deny,allow
  

  
    Order deny,allow
  


# Set the authenticated printer/job policies...

  # Job/subscription privacy...
  JobPrivateAccess default
  JobPrivateValues default
  SubscriptionPrivateAccess default
  SubscriptionPrivateValues default

  # Job-related operations must be done by the owner or an administrator...
  
    AuthType Default
    Order deny,allow
  

  
    AuthType Default
    Require user @OWNER @SYSTEM
    Order deny,allow
  

  # All administration operations require an administrator to authenticate...
  
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  

  # All printer operations require a printer operator to authenticate...
  
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  

  # Only the owner or an administrator can cancel or authenticate a job...
  
    AuthType Default
    Require user @OWNER @SYSTEM
    Order deny,allow
  

  
    Order deny,allow
  


# Set the kerberized printer/job policies...

  # Job/subscription privacy...
  JobPrivateAccess default
  JobPrivateValues default
  SubscriptionPrivateAccess default
  SubscriptionPrivateValues default

  # Job-related operations must be done by the owner or an administrator...
  
    AuthType Negotiate
    Order deny,allow
  

  
    AuthType Negotiate
    Require user @OWNER @SYSTEM
    Order deny,allow
  

  # All administration operations require an administrator to authenticate...
  
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  

  # All printer operations require a printer operator to authenticate...
  
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  

  # Only the owner or an administrator can cancel or authenticate a job...
  
    AuthType Negotiate
    Require user @OWNER @SYSTEM
    Order deny,allow
  

  
    Order deny,allow
  

root@uos:/var/log/cups#