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* [Comm] P8: Listen localhost:631 не срабатывает в cupsd.conf
@ 2017-04-07 13:28 Четвериков К.В.
  2017-04-11  4:55 ` Eugene Prokopiev
  0 siblings, 1 reply; 3+ messages in thread
From: Четвериков К.В. @ 2017-04-07 13:28 UTC (permalink / raw)
  To: community

[-- Attachment #1: Type: text/plain, Size: 927 bytes --]

Здравствуйте товарищи! В /etc/cups/cupsd.conf есть опция Listen 
localhost:631, которая, как я понимаю, должна отвечать за доступность 
cups только с localhost, но 631 порт светится на всю локалку:
lsof -i | grep cupsd
cupsd     1968   root    4u  IPv6   8904      0t0  TCP *:ipp (LISTEN)

С другого ПК:
nmap 192.168.1.2

Starting Nmap 5.51 ( http://nmap.org ) at 2017-04-07 16:21 MSK
Host is up (0.000078s latency).
Not shown: 998 closed ports
PORT    STATE SERVICE
22/tcp  open  ssh
631/tcp open  ipp
MAC Address: *:*:*:*:*:* (ASRock Incorporation)

Nmap done: 1 IP address (1 host up) scanned in 0.16 seconds

Я что-то ещё проглядел для деактивации такого поведения или это баг?

-- 
С уважением,
Четвериков Константин


[-- Attachment #2: cupsd.conf --]
[-- Type: text/plain, Size: 4498 bytes --]

#
# 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

# Deactivate CUPS' internal logrotating, as we provide a better one, especially
# LogLevel debug2 gets usable now
MaxLogSize 0

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

# Show shared printers on the local network.
Browsing No
BrowseLocalProtocols none

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

# Web interface setting...
WebInterface Yes

# Restrict access to the server...
<Location />
  Order allow,deny
</Location>

# Restrict access to the admin pages...
<Location /admin>
  Order allow,deny
</Location>

# Restrict access to configuration files...
<Location /admin/conf>
  AuthType Default
  Require user @SYSTEM
  Order allow,deny
</Location>

# Set the default printer/job policies...
<Policy default>
  # Job/subscription privacy...
  JobPrivateAccess default
  JobPrivateValues default
  SubscriptionPrivateAccess default
  SubscriptionPrivateValues default

  # Job-related operations must be done by the owner or an administrator...
  <Limit Create-Job Print-Job Print-URI Validate-Job>
    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-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  # All administration operations require an administrator to authenticate...
  <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>

  # All printer operations require a printer operator to authenticate...
  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>

  # Only the owner or an administrator can cancel or authenticate a job...
  <Limit Cancel-Job CUPS-Authenticate-Job>
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  <Limit All>
    Order deny,allow
  </Limit>
</Policy>

# Set the authenticated printer/job policies...
<Policy authenticated>
  # Job/subscription privacy...
  JobPrivateAccess default
  JobPrivateValues default
  SubscriptionPrivateAccess default
  SubscriptionPrivateValues default

  # Job-related operations must be done by the owner or an administrator...
  <Limit Create-Job Print-Job Print-URI Validate-Job>
    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-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
    AuthType Default
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  # All administration operations require an administrator to authenticate...
  <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>

  # All printer operations require a printer operator to authenticate...
  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>

  # Only the owner or an administrator can cancel or authenticate a job...
  <Limit Cancel-Job CUPS-Authenticate-Job>
    AuthType Default
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  <Limit All>
    Order deny,allow
  </Limit>
</Policy>

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [Comm] P8: Listen localhost:631 не срабатывает в cupsd.conf
  2017-04-07 13:28 [Comm] P8: Listen localhost:631 не срабатывает в cupsd.conf Четвериков К.В.
@ 2017-04-11  4:55 ` Eugene Prokopiev
  2017-04-11  8:44   ` Четвериков К.В.
  0 siblings, 1 reply; 3+ messages in thread
From: Eugene Prokopiev @ 2017-04-11  4:55 UTC (permalink / raw)
  To: ALT Linux Community general discussions

7 апреля 2017 г., 16:28 пользователь Четвериков К.В.
<chetverikov@mann-schroeder.ru> написал:

> Здравствуйте товарищи! В /etc/cups/cupsd.conf есть опция Listen
> localhost:631, которая, как я понимаю, должна отвечать за доступность cups
> только с localhost, но 631 порт светится на всю локалку

Посмотрите на systemctl status cups.socket помимо systemctl status cups

-- 
WBR,
Eugene Prokopiev

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [Comm] P8: Listen localhost:631 не срабатывает в cupsd.conf
  2017-04-11  4:55 ` Eugene Prokopiev
@ 2017-04-11  8:44   ` Четвериков К.В.
  0 siblings, 0 replies; 3+ messages in thread
From: Четвериков К.В. @ 2017-04-11  8:44 UTC (permalink / raw)
  To: ALT Linux Community general discussions

Спасибо за наводку! Деактивация cups.socket (который в свою очередь 
является симлинком на org.cups.cupsd.socket) решает проблему. Если 
смотреть глубже, то в файле org.cups.cupsd.socket, нужно изменить 
значение параметра ListenStream=631 на ListenStream=localhost:631, но 
сохранить изменённый файл как /etc/systemd/system/cups.socket и сделать 
systemctl reenable cups.socket.

Остаётся вопрос по поводу того, считать ли это фичей, или всё-же багом? 
На мой взгляд, нужно по умолчанию этот файл поставлять с 
ListenStream=localhost:631 в соответствии с cupsd.conf.

11.04.2017 07:55, Eugene Prokopiev пишет:
> 7 апреля 2017 г., 16:28 пользователь Четвериков К.В.
> <chetverikov@mann-schroeder.ru> написал:
>
>> Здравствуйте товарищи! В /etc/cups/cupsd.conf есть опция Listen
>> localhost:631, которая, как я понимаю, должна отвечать за доступность cups
>> только с localhost, но 631 порт светится на всю локалку
> Посмотрите на systemctl status cups.socket помимо systemctl status cups
>

-- 
С уважением,
Четвериков Константин
Тел. +7 (495) 617-617-2 доб. 212 Моб. +7 926 215 39 83
e-mail: chetverikov@mann-schroeder.ru www.mann-schroeder.ru



^ permalink raw reply	[flat|nested] 3+ messages in thread

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2017-04-07 13:28 [Comm] P8: Listen localhost:631 не срабатывает в cupsd.conf Четвериков К.В.
2017-04-11  4:55 ` Eugene Prokopiev
2017-04-11  8:44   ` Четвериков К.В.

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