[转]摄影中ISO值，光圈，快门的关系和运用
[转]yum.conf 配置文件详解
Oct
6
[原]再次处理cups 1.2.4打印问题 
年初的时候，在Asianux 3.0上尝试配置cups 1.2.4打印服务，遇到不少问题。见这里：[原]cups的windows-ext client-error-bad-request 故障 。这天，由于工作需要，再次处理cups 1.2.4。莫名其妙的是，这次同样的故障居然只处理一次，所以，特留下配置文件待以后参考。
一、关于使用SSL连接
由于只在局域网内使用，而且使用的人员不多，就没有考虑SSL加密链接，并把其禁用掉了。
但一直觉得奇怪，为什么使用http://ip:631/访问正常，使用https://ip:631/访问就没有响应呢？根据cups提供的升级说明，1.2.4版本应该是支持自动识别加密或非加密连接的。
查看日志文件：/var/log/cups/error.log，发现，如果访问https://ip:631/，就会有如下提示：
决定等待试试，一直等。。。。等了5分钟后，终于出现：
原来是我耐性不够，cups在后台使用cgi程序会自动生成SSL证书的。
（这时候，用top也没发现相关的运行进程，故原以为浏览器已经停止响应了）
二、解决windows-ext client-error-bad-request故障
这故障没仔细研究如何解决的，仅知道现在已经可以正常通过Windows连接到cups上，并正常打印。
贴出配置文件：
（红色标记是我修改或增加的地方）
使用界面：
三、配置文件及SSL证书
留个存档吧：
下载文件
（文件路径在：/etc/cups/）
一、关于使用SSL连接
由于只在局域网内使用，而且使用的人员不多，就没有考虑SSL加密链接，并把其禁用掉了。
但一直觉得奇怪，为什么使用http://ip:631/访问正常，使用https://ip:631/访问就没有响应呢？根据cups提供的升级说明，1.2.4版本应该是支持自动识别加密或非加密连接的。
查看日志文件：/var/log/cups/error.log，发现，如果访问https://ip:631/，就会有如下提示：
引用
I [06/Oct/2008:17:03:16 +0800] Generating SSL server key...
决定等待试试，一直等。。。。等了5分钟后，终于出现：
引用
I [06/Oct/2008:17:08:13 +0800] Created SSL server key file "/etc/cups/ssl/server.key"...
I [06/Oct/2008:17:08:13 +0800] Generating self-signed SSL certificate...
I [06/Oct/2008:17:08:13 +0800] Created SSL server certificate file "/etc/cups/ssl/server.crt"...
I [06/Oct/2008:17:08:13 +0800] cupsdCloseClient: SSL shutdown successful!
I [06/Oct/2008:17:08:47 +0800] cupsdCloseClient: SSL shutdown successful!
I [06/Oct/2008:17:08:47 +0800] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16245)
I [06/Oct/2008:17:08:13 +0800] Generating self-signed SSL certificate...
I [06/Oct/2008:17:08:13 +0800] Created SSL server certificate file "/etc/cups/ssl/server.crt"...
I [06/Oct/2008:17:08:13 +0800] cupsdCloseClient: SSL shutdown successful!
I [06/Oct/2008:17:08:47 +0800] cupsdCloseClient: SSL shutdown successful!
I [06/Oct/2008:17:08:47 +0800] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=16245)
原来是我耐性不够，cups在后台使用cgi程序会自动生成SSL证书的。
（这时候，用top也没发现相关的运行进程，故原以为浏览器已经停止响应了）
二、解决windows-ext client-error-bad-request故障
这故障没仔细研究如何解决的，仅知道现在已经可以正常通过Windows连接到cups上，并正常打印。
贴出配置文件：
引用
#
# "$Id: cupsd.conf.in 5454 2006-04-23 21:46:38Z mike $"
#
# Sample configuration file for the Common UNIX Printing System (CUPS)
# scheduler. See "man cupsd.conf" for a complete description of this
# file.
#
MaxLogSize 2000000000
# Log general information in error_log - change "info" to "debug" for
# troubleshooting...
LogLevel info
# Administrator user group...
SystemGroup sys root
# Only listen for connections from the local machine.
Listen localhost:631
Listen 192.168.228.155:631
Listen /var/run/cups/cups.sock
# Show shared printers on the local network.
Browsing On
BrowseOrder allow,deny
# (Change '@LOCAL' to 'ALL' if using directed broadcasts from another subnet.)
#BrowseAllow @LOCAL
BrowseAllow @ALL
# Default authentication type, when authentication is required...
DefaultAuthType Basic
# Restrict access to the server...
Order allow,deny
Allow localhost
Allow 192.168.228.*
# Restrict access to the admin pages...
Encryption Required
Order allow,deny
Allow localhost
Allow 192.168.228.*
# Restrict access to configuration files...
AuthType Basic
Require user @SYSTEM
Order allow,deny
Allow localhost
Allow 192.168.228.*
# Set the default printer/job policies...
# Job-related operations must be done by the owner or an adminstrator...
Require user @OWNER @SYSTEM @ALL
Order deny,allow
# All administration operations require an adminstrator to authenticate...
AuthType Basic
Require user @SYSTEM
Order deny,allow
# Only the owner or an administrator can cancel or authenticate a job...
Require user @OWNER @SYSTEM
Order deny,allow
Order deny,allow
#
# End of "$Id: cupsd.conf.in 5454 2006-04-23 21:46:38Z mike $".
#
# "$Id: cupsd.conf.in 5454 2006-04-23 21:46:38Z mike $"
#
# Sample configuration file for the Common UNIX Printing System (CUPS)
# scheduler. See "man cupsd.conf" for a complete description of this
# file.
#
MaxLogSize 2000000000
# Log general information in error_log - change "info" to "debug" for
# troubleshooting...
LogLevel info
# Administrator user group...
SystemGroup sys root
# Only listen for connections from the local machine.
Listen localhost:631
Listen 192.168.228.155:631
Listen /var/run/cups/cups.sock
# Show shared printers on the local network.
Browsing On
BrowseOrder allow,deny
# (Change '@LOCAL' to 'ALL' if using directed broadcasts from another subnet.)
#BrowseAllow @LOCAL
BrowseAllow @ALL
# Default authentication type, when authentication is required...
DefaultAuthType Basic
# Restrict access to the server...
Order allow,deny
Allow localhost
Allow 192.168.228.*
# Restrict access to the admin pages...
Encryption Required
Order allow,deny
Allow localhost
Allow 192.168.228.*
# Restrict access to configuration files...
AuthType Basic
Require user @SYSTEM
Order allow,deny
Allow localhost
Allow 192.168.228.*
# Set the default printer/job policies...
# Job-related operations must be done by the owner or an adminstrator...
Require user @OWNER @SYSTEM @ALL
Order deny,allow
# All administration operations require an adminstrator to authenticate...
AuthType Basic
Require user @SYSTEM
Order deny,allow
# Only the owner or an administrator can cancel or authenticate a job...
Require user @OWNER @SYSTEM
Order deny,allow
Order deny,allow
#
# End of "$Id: cupsd.conf.in 5454 2006-04-23 21:46:38Z mike $".
#
（红色标记是我修改或增加的地方）
使用界面：
三、配置文件及SSL证书
留个存档吧：
下载文件 （文件路径在：/etc/cups/）
