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10/19/2009 at 06:19AM PDT, ID: 24823427
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9.3

CUPS Service error on Port 631

Asked by FLee_TA in Linux Printing, Linux Networking, Linux

Tags: CUPS 1.4.2, Fedora 10, port 631

I have a CUPS server that seems to be unable to listen on 631.   When I start the service the /var/log/cups/error_log produces:

E [19/Oct/2009:09:07:51 -0400] Unable to bind socket for address 0.0.0.0:631 - Address already in use.


When I chech the netstat, I see this:  

# netstat -lnp --ip
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name  
tcp        0      0 127.0.0.1:32000             0.0.0.0:*                   LISTEN      1547/pc-app        
tcp        0      0 0.0.0.0:55913               0.0.0.0:*                   LISTEN      1294/rpc.statd      
tcp        0      0 0.0.0.0:111                 0.0.0.0:*                   LISTEN      1055/rpcbind        
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      1339/sshd          
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      1630/sendmail: acce
udp        0      0 0.0.0.0:659                 0.0.0.0:*                               1294/rpc.statd      
udp        0      0 0.0.0.0:798                 0.0.0.0:*                               1055/rpcbind        
udp        0      0 0.0.0.0:41272               0.0.0.0:*                               1078/avahi-daemon:  
udp        0      0 0.0.0.0:68                  0.0.0.0:*                               1564/dhclient      
udp        0      0 0.0.0.0:55240               0.0.0.0:*                               1294/rpc.statd      
udp        0      0 0.0.0.0:5353                0.0.0.0:*                               1078/avahi-daemon:  
udp        0      0 0.0.0.0:111                 0.0.0.0:*                               1055/rpcbind        
udp        0      0 0.0.0.0:631                 0.0.0.0:*                               1022/portreserve    


I believe I'm expecting to see 0.0.0.0:631 to be assigned to CUPS.

cupsd.conf:

MaxLogSize 1m
LogLevel warn
SystemGroup sys root
# Allow remote access
Port 631
Listen /var/run/cups/cups.sock
# Disable printer sharing and shared printers.
Browsing Off
DefaultAuthType Basic
<Location />
  # Allow remote administration...
  Order allow,deny
  Allow @LOCAL
  Allow 10.11.101.82
  Allow 10.6.101.214
  Allow all
</Location>
<Location /admin>
  # Allow remote administration...
  Order allow,deny
  Allow @LOCAL
  Allow 10.11.101.82
  Allow 10.6.101.214
  Allow all
</Location>
<Location /admin/conf>
  AuthType Default
  Require user @SYSTEM
  # Allow remote access to the configuration files...
  Order allow,deny
  Allow @LOCAL
</Location>
<Policy default>
  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Not$
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>
  <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default CUPS-Get-Devices>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>
  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-$
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>
  <Limit Cancel-Job CUPS-Authenticate-Job>
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>
  <Limit All>
    Order deny,allow
  </Limit>
</Policy>
<Policy authenticated>
  <Limit Create-Job Print-Job Print-URI>
  AuthType Default  
  Order deny,allow
</Limit>
  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Not$
AuthType Default
Require user @OWNER @SYSTEM
Order deny,allow
  </Limit>
  <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
  AuthType Default
  Require user @SYSTEM
  Order deny,allow
    </Limit>
  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-$
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
      </Limit>
  <Limit Cancel-Job CUPS-Authenticate-Job>
      AuthType Default
      Require user @OWNER @SYSTEM
      Order deny,allow
        </Limit>
  <Limit All>
        Order deny,allow
          </Limit>
</Policy>

                     

 
Keywords: CUPS Service error on Port 631
Title
1 cups not allowing network printing, b…
 
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[+][-]10/19/09 06:44 AM, ID: 25605067

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About this solution

Zones: Linux Printing, Linux Networking, Linux
Tags: CUPS 1.4.2, Fedora 10, port 631
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Solution Provided By: arnold
Participating Experts: 1
Solution Grade: A
 
 
[+][-]10/19/09 07:12 AM, ID: 25605279

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