Cupsd service This daemon provides basic printing services that include queueing, filtering, spooling, notification, IPP support, device enumeration, and web management. Feb 15, 2016 · CUPS stands for Common UNIX Printing System There are two ways to manage your printers on Linux environment: First, from command line, using lpadmin command, you can configure your printer and manage the print queues Second, from web UI, you can manage your printers interactively In one of our previous tutorial, we dis Aug 26, 2024 · Learn ways to work with Common Unix Printing System (CUPS) printers and check the print job history in Linux. You can disable and stop the service with the commands: systemctl disable cups. I gather this was causing cups. conf still returns the same Oct 16, 2021 · This post educates students and new Ubuntu Linux users on how to establish a CUPS print server. Its use is very widespread, as it has become the standard print manager on the majority of popular Linux distros. Printing is broken no cupsd. What would you enter at the command prompt to find out if the atd. How should I do this? The package is called cups-browsed and works with some printer features. Copy Listen 127. socket. service systemctl stop cups. service to org. The step to identifying this was to run "sudo cupsd -t", which tests the cupsd. Is there a package I'm missing that I need to install? Why do I not have a CUPS service? Jul 30, 2023 · CUPS is a printing system used on many different Linux distributions. This help page provides an analysis of possible CUPS security concerns and Mar 24, 2023 · paralin changed the title systemd sockets and cupsd service not working in container after 23. For a secure connection over Dec 27, 2023 · After finishing cupsd policy tuning, gracefully restart the daemon to apply: systemctl restart org. conf” file to use it. After editing either file, restart cups. In this tutorial, we go through the installation and configuration of CUPS as well as some basic usage. When you share printers and/or enable remote administration, you expose your system to potential unauthorized access. 3XFCE by Frankus333 » Fri Jan 24, 2020 11:43 am Feb 20, 2016 · For a network printer, I was able to get org. txt cupsd. To set up CUPS Print Server in Ubuntu 22. , systemd), and is rarely invoked directly by an end-user. I have seen others showing Cupsd spamming their logs, and will look those posts up to updtate. DESCRIPTION top cupsd is the scheduler for CUPS. socket to fail, which was the "dependency failed" above. It implements a printing system based on Internet Printing Protocol version 2. Possible Output Messages cupsd inactive no output displayed cupsd is not running cupsd is Sep 27, 2024 · Not using a printer, and I would like to remove the cups-browsed service for better system security. Nov 7, 2024 · If the CUPS service is inactive on a Linux machine, it may display outputs like "cupsd is not running" or "cupsd is not running failed!". The output will indicate whether the service is active or inactive, clearly stating the status of the cupsd daemon. conf' file and specifying 'Allow' and 'Deny' directives for different locations. Feb 20 15:59:35 lxd-container cups. service, cups. The reason is the printer. May 3, 2019 · I've run the resisntall as above, but cups is still not running. default which doesn't fix the corruption: File: cupsd. cups-browsed and cups. I just went into Printers and added it there as that seems the logical and correct place to add a printer. The default configuration requires encryption for remote access whenever authentication is required. I tried all the usual things, Question: 8. The latter two are used for socket activation and path activation, which will end up triggering the service even if it's not enabled. By default, CUPS is configured to only listen for connections on the server itself. Conclusion Setting up a CUPS print server on Debian 12 is straightforward but can be tailored to fit complex networking environments and printer configurations. 0 and later Linux x86-64 Symptoms cups. For a secure connection over Dec 8, 2024 · Application: Terminal CUPS version: 2. Jul 11, 2021 · To scan and add printers from the local network start and enable service "cups-browsed", type the below mention command. Description The cupsd. What's reputation and how do I get it? Instead, you can save this post to reference later. Starting/Enabling the CUPS Service With the packages installed, we now need to start up and enable the CUPS service so it runs automatically on each reboot: sudo systemctl start cups sudo systemctl enable cups Configuration The CUPS server configuration is located in /etc/cups/cupsd. socket cups. Oct 15, 2009 · The Common UNIX Printing System (CUPS) is actually a printer management tool, and thus monitoring CUPS always remains a very essential activity to to make the best use of the resources available. service fails to start after the server upgraded to OL8 from OL7 using Leapp utility. If not, click here to continue. service - CUPS Printing Service Loaded: Cupsd update I understand there was an update in cupsd and there is a new /etc/cupsd/cupsd. This allows you to print from inside your applications or at the command-line, whichever is most convenient! Type either of the following commands to print a file to the default (or only) printer on the system: lp filename lpr filename Computer Science questions and answers 8. 11 Additional context Any additional information which are relevant to the issue. cupsd is the CUPS scheduler. Automatic Configuration Using Bonjour Most network printers support a protocol known as Bonjour, which is a combination of zero-configuration networking ("ZeroConf"), multicast DNS (mDNS), and DNS service discovery (DNS-SD) standards published by the Internet Engineering Task Force (IETF), the same group that defined TCP/IP and all of the networking we use today. If you find a line in the logs that says Failed to start cupsd. Everything works great, in fact it's one of the few up-to-date distros that will work on this old DESCRIPTION top The cupsd. Running cupsd in the foreground with a custom Explore the CUPS printing system and learn how to manage printers using the cupsd command. Once you've disabled the cups service, reboot your computer. CUPS will not start automatically after RHEL reboots, even though it is enabled: # systemctl enable cups # systemctl start cups # systemctl status cups cups. Classes are associated with one or more printers and are typically used to distribute print jobs amongst a group of printers or provide redundancy or high availability when printing. conf. 04, execute “sudo apt install cups” command and make the required changes in “cupsd. Oct 15, 2020 · Learn how to use CUPS on Linux, add printers, and manage print jobs. When upgrading to version 2. CUPS prefers driverless printing, and using drivers is deprecated. [root@<HOSTNAME> 09:26:23][/] # systemctl status cups. This package is available in extra from October 31, 2014. Nov 12, 2025 · CHAPTER 2. socket and cups. What status would be printed if the service is inactive?1 pointcupsd is not running no output displayedcupsd is not running failed!cupsd Need someone to talk to? Our counselors and listeners are standing by. Each line in the file can be a configuration directive, a blank line, or a comment. service, you can try disabling the cups service by running the following command: sudo systemctl disable cups 3. 1 and supports most of the IPP Everywhere requirements. Jun 16, 2021 · Otherwise there is a possibility that some options aren’t applied or applied twice. First However, when I try and make the CUPS service run on startup using: systemctl enable cups. For example, administrators can use this feature on workstations to make only printers from a trusted print server available in a print dialog of applications. service file provided with the Canon CAPT driver in the AUR. service does not exist. service, org. Dec 19, 2019 · we encountered the issue with cupsd service unit file and systemd in Fedora/RHEL- if cupsd is installed and service unit file is enabled, but it is not started manually, then cupsd is not started after reboot, which should be. runningcupsd is active. CUPS uses IPP Everywhere™ to support printing to local and network printers. 1, and supports most of the requirements for IPP Everywhere. Aug 22, 2023 · What is cusps? Is it a Mac OS component? It keeps popping up when I try to use my HP printer using its "wireless print" feature. If no options are specified on the command line, the default /etc/cups/cupsd. Red Hat Enterprise Linux (RHEL) does not provide the name service switch multicast DNS plugin (nss-mdns), which resolves requests by querying an mDNS responder. 1 with the Linux server's IP address. You should disable all three to make sure cups won't be brought up due to socket or path activation on reboot: systemctl disable cups. service is configured to start every time the multi-user. CUPS uses port 631 (TCP and UDP), which is the standard IPP port, and optionally on port 515 by inetd, launchd, the Solaris Service Management Facility, or xinetd which use the cups-lpd helper program to support LPD printing. Question 9Complete the Qwiklab Here’s the best way to solve it. Chapter 1. conf 3. if you enable the service "cups-browsed", the service "cups-browsed" automatically start after the reboot on CentOS Linux 7 machine and other Linux machines as well. Jan 6, 2024 · You can do this by editing the 'cupsd. If the connection to the DNS server times out, that can cause a five-second delay every time a printer is loaded. Nov 28, 2020 · I’m having an issue with the cups intervention posted above. Feb 10, 2022 · issues with seeing or connecting to the printer (it can be cups backend issues, avahi issues, libusb issues, cups-browsed issues), accessibility issues (correct/wrong setup in cupsd. The default configuration is sufficient for most users. Printing Files CUPS understands many different types of files directly, including text, PostScript, PDF, and image files. This is, for example, the case with the ccpd. May 28, 2021 · 2 The culprit was a badly formatted netmask in /etc/cups/cupsd. Reboot your computer. Question 8Complete the Qwiklab Service Management in Linux before answering this question. How to Use cupsd Command in Linux? The heart of this system is the cupsd command, which is the scheduler for CUPS. Patching is relatively frequent as printer support is fixed, translations updated, and interaction with systemd is adjusted. The cups-browsed service uses DNS service discovery (DNS-SD) and CUPS browsing to make all or a filtered subset of shared remote printers automatically available in a local CUPS service. 04. x release on Mar 23, 2023 The cups-browsed service uses DNS service discovery (DNS-SD) and CUPS browsing to make all or a filtered subset of shared remote printers automatically available in a local CUPS service. Please see the following Knowledgebase Solution for another cause of CUPS taking a long time to start up: CUPS service doesn't seem to start, or starts very slowly in RHEL Root Cause Delay in CUPS starting up can be due to a DNS failure when connecting to the DNS server. You want to check the status of the cups service on your Linux machine. Using the lpstat Command The lpstat command displays the status of the CUPS service, printers, classes, and jobs. service to apply any changes. target. service. service, as suggested in the CUPS wiki, even though I didn't really want Avahi, which it requires. 8. CONFIGURING TLS ENCRYPTION ON A CUPS SERVER CUPS supports TLS-encrypted connections and, by default, the service enforces encrypted connections for all requests that require authentication. Comment lines Jan 24, 2020 · [SOLVED] CUPS service not starting and not accessible after printer/scanner install LM19. You check the status of the cups service on a Linux machine. service The default configuration is quite restrictive and should not allow remote access. 9. If the CUPS service is inactive, you would typically see a status output that suggests it is not running. 0. In the default "standalone" configuration, there are few potential security risks - the CUPS server does not accept remote connections, and only accepts shared printer information from the local subnet. . Description cupsd is the scheduler for CUPS. looking in /etc/systemd/system/ there are no printer items According to systemd it needs cupsd. All the 3 services related to cups fails to start. CUPS lets a computer operate as a print server, facilitating printing and print services on Unix-like… Nov 21, 2020 · Just made an unstable cinnamon iso. Oct 6, 2025 · This tutorial will be showing you how to share a CUPS printer attached to an Ubuntu computer with Windows, macOS and iOS clients on the same network. cupsd. sudo service cups status To restart the cups print server using the terminal enter the following command sudo service cups restart To stop the cups print server using the terminal enter the following command sudo service cups stop To start the cups print server using the terminal enter the following command Disable the cups service. conf file control whether encryption is used. path Nov 1, 2023 · The main CUPS daemon is cupsd which we will next look at starting as a system service. ~]# yum install cups The CUPS configuration file is located at /etc/cups/cupsd. CUPS includes a set of configuration files and directories located in the /etc/cups, a daemon (cupsd) used to schedule print jobs, filters for printing different document types, and commands to print and manage print jobs in the queue. cups. Once the issue has been reproduced and data has been gathered, it may be desirable to undo the changes to /etc/cups/cupsd. x. cupsd[5789 This help document describes the ports that CUPS uses so that firewall administrators can allow traffic used for printing. path and org. Should these be short cuts? Why are they missing? Manual page and help for the cupsd Linux command. Feb 23, 2020 · Every once in a while (not necessarily after resuming from suspend or booting) I have to sudo /etc/init. Nov 19, 2021 · I just installed Debian 11. Comment lines start Aug 12, 2022 · Here learn how to install and set up CUPS print server in Ubuntu 22. 4. Configure each printer, as follows: In the configuration file Security cups-lpd currently does not perform any access control based on the settings in cupsd. Which command should you use? Nov 12, 2025 · CHAPTER 2. 0, it is necessary to manually disable the old service, otherwise broken symbolic links will be left in /etc/systemd/system/ subdirectories and systemd will warn about non-existent services. It is responsible for accepting print jobs, processing them, and sending them to the appropriate printer. Print jobs sent to a class are forwarded to the next available printer in the class. 3 days ago · Configure Server administrator ¶ To configure the email address of the designated CUPS server administrator, edit the /etc/cups/cupsd. conf and restart the cups service once again. The goal is to allow an application to supply a print file in a standard format with the user intent ("print four copies, two-sided on A4 media, and staple each copy") and have the printing system manage the printer communication and format conversion needed. path cups. 1:631 and paste it above or below the original. conf (5)). service may fail to start / stop itself directly after starting Mar 19, 2025 · An example of checking the status of the CUPS service on a Linux system would be to open a terminal and type systemctl status cups. If no certificates are configured, CUPS creates a private key and a self-signed certificate. What status would be printed if the service is active?1 pointcupsd OK. conf or its bad interpretation by cupsd daemon, bad cooperation with NIS, SSSD… ), printing with help of samba (issues with smb backend, which is part of samba) or with samba authenticated through Kerberos (samba If a CUPS network server broadcasts its queues to the client hosts via browsing and a suitable local cupsd is active on the client hosts, the client cupsd accepts print jobs from applications and forwards them to the cupsd on the server. conf after generating a new one out of cupsd. service cups. When cupsd on the server accepts a print job, it is assigned a new job number. Consequently, automatic discovery and installation for local driverless printers by using mDNS is not available in RHEL. Is there a way to bypass this process, or w open /etc/cups/cupsd. Configuration directives in cupsd. 04 Bionic Beaver like so $ sudo apt-get update $ sudo apt-get install cups I checked status of CUPS, and it failed to start $ systemctl status cups cups. The configuration directive name and values are case-insensitive. service I get this error: Failed to issue method call: No such file or directory The same thing happens with cupsd. This is only sufficient if you access CUPS from the local host itself. service instead of cups. conf syntax. Don’t forget about enabling IPP in firewall, setting ACLs to the server via /etc/cups/cupsd. 1 on an old hard drive. target in WantedBy directive is disabled and Your system is currently running the multi-user. Use apt-get or yum to install CUPS (Common Unix Printing System). cupsd OK. conf (5) control what information is logged and where it is stored. conf file to restrict access. conf file configures the CUPS scheduler, cupsd (8). If it is inactive, you would see 'cupsd is not running. If there The default policy creates self-signed certificates as needed. This command utilizes the systemctl utility, which is used to manage the state of systemd system and service manager. service - CUPS Scheduler Loaded Feb 4, 2018 · I added "cups" as a user in the file /etc/cups/cups-files. runningcupsd is running. Configuration directives typically consist of a name and zero or more values separated by whitespace. conf file, and make the following changes: If you want to remotely Mar 18, 2024 · The Common UNIX Printing System (CUPS) is a way to manage printers and printing jobs in a universal way on UNIX and Linux systems. Starting cupsd,service File: starting cupsd service. 04 (on hosts running on both 20. Feb 27, 2025 · After a server update iprint-cups. Namely I cannot add any printer through the system config printer, nor can I detect a printer through lpinfo -v in the terminal. If no options are specified on the command-line then the default configuration file /etc/cups/cupsd. Oct 7, 2009 · For cups 2. Therefore, running cups-lpd on your server will allow any computer on your network (and perhaps the entire Internet) to print to your server. Testing a custom configuration file: cupsd -t -c test. conf and /etc/cups/cups-files. I wish apple would just publish a searchable list of OS X component filenames so we could just check in one place to see if something is legit OS code or not. conf (5) and cups-files. It converts the page descriptions produced by your application (put a paragraph here, draw a line there, and so forth) into something your printer can understand and then sends the information to the printer for printing. Upvoting indicates when questions and answers are useful. Apr 24, 2020 · Apple CUPS The standards-based, open source printing system developed by Apple for iOS ®, iPadOS ®, and macOS ®. To be able to connect to the server from any PC in the subnet, make the following change to the cupsd. Mar 25, 2023 · I have several LXD containers running Ubuntu 20. Thus, outputs indicating the service is not running indicate its inactive status. What status would be printed if the service is active?1 pointcupsd is active. It is normally located in the /etc/cups directory. conf file (replace x. Running cupsd with the default configuration file: cupsd 2. x with the IP address of the A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more. If no options are specified on the Description cupsd (8) normally maintains three log files: access_log to track requests that are submitted to the scheduler, error_log to track progress and errors, and page_log to track pages that are printed. ser Sep 10, 2020 · Note: CUPS will generate a prodigious amount of information if left running with debugging enabled. d/cups restart to see again the network printers. conf (5) or in the hosts. You can use access control lists (ACLs) in the cupsd. Jul 11, 2025 · Limit access: Only allow authorized users to access the CUPS web interface and manage printers. conf, however when i attempt to restart the service "org. I reinstalled cups and executed systemctl disable again but I get the same message. cupsd disabled and inactive, but I still have the cups-browsed process running using 19% of CPU Nov 6, 2018 · The cups package ships three systemd unit files: cups. It cupsd (8) cupsd-helper (8) cupsd-logs (5) cupsd. conf configuration file with your preferred text editor, and add or modify the ServerAdmin line accordingly. Executing systemctl disable results in the following message: Failed to disable unit: Unit file org. Dec 17, 2024 · The cupsd daemon manages the printing service, monitoring print requests, and ensuring that they are queued and sent to printers according to the specified configurations. It implements a printing system based upon the Internet Printing Protocol, version 2. Typically, cupsd runs as a background service, started automatically at boot by the system's init system (e. conf (5) cupsenable (8) cupsfilter (8) cupstestppd (1) This service manages the cupsd daemon. Monitoring CUPS will allow us to take action quickly should something go wrong. Keep CUPS updated: Regularly update the CUPS software to patch security vulnerabilities. conf (see cupsd. Nov 7, 2024 · Understanding CUPS Service Status in Linux When checking the status of the CUPS (Common Unix Printing System) service on a Linux machine, you may encounter various messages that indicate its state. How to get the CUPS daemon up and running again ? hcvv January 10, 2022, 12:42pm 2 nootnl: Hi, I am trying to install a local network printer using YAST. To correct this, choose System->Administration->Services from the main menu and look for the ‘cups’ service. g. I Please note that if you use any other service files that depend on cups. service" I get the following error: Nov 6, 2016 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Explore CUPS web interface and commands for efficient printer management. The DefaultEncryption and Encryption directives in the cupsd. Advice on how to proceed would be appreciated. cupsd Now CUPS has a hardened foundation to start integrating print hardware! Adding Network Printers and Drivers to CUPS A cornerstone CUPS server responsibility is managing deployment and upgrades of print drivers across an enterprise. 1. cupsd is running. CUPS (Common UNIX Printing System) is an open source printing system developed by Apple and is the standard for Linux. Replace 127. The exact response may vary based on the Linux distribution and configuration. x systemd sockets and cupsd service broken after Docker 23. cupsd is the scheduler for CUPS. Importantly, perhaps the first thing that we need to know after setting up CUPS is whether our printer is recognized and available within the framework. 7 Cups connects you to caring listeners for free emotional support. allow (5) or hosts. Download Repository Get CUPS for Other Operating Systems Apr 13, 2023 · I just followed your instructions, I got cups. conf will be used. service to be active and I was able to eventually add the printer using the CUPS web interface. Overview of CUPS CUPS is the software you use to print from applications like the web browser you are using to read this page. 04 and 22. service Feb 20 15:59:34 lxd-container systemd[1]: Started Service for snap application cups. CUPS is the primary mechanism in the Unix-like operating system for printing and print services. For a full picture of whether the scheduler (cupsd) is running, what the system default destination is, whether a local queue is accepting jobs and what is yet to be printed you can use lpstat: to show all available destinations (local and remote). conf Add a Listen instruction, as follows: Scroll to the bottom of the configuration file where the other Listen instructions are declared. Now, since every printer manufacturer does Sep 19, 2017 · CUPS Service Stopped The CUPS print spooler does not appear to be running. txt Creating a new cupsd. path. conf but replacing it with the old one did not fix the issue (and it may have caused more issues, as the two are different, and only tried the swap blindly). 04 as well) And all seem to have the same issue with the snap cups service failing to start: [ubuntu:~] 6s 141 $ journalctl -u snap. conf and attaching the daemon to port 631 instead of localhost. 0, the service name has been changed to org. After installation, the CUPS service will start automatically by default. CUPS is designed to insulate users and developers from the implementation details of printers and file formats. conf configuration file is used. target is loaded? Jun 28, 2024 · To check the status of the CUPS service on a Linux machine, use the command 'systemctl status cups'. Configure printer settings and gain practical experience with this essential Linux utility. Oct 1, 2024 · To add a user to the lpadmin group, run at the following command in your terminal prompt: sudo usermod -aG lpadmin username cupsd command Examples Here are a few practical examples of how to use the cupsd command: 1. service, you may have to manually update those service files to rename cups. ' Nov 6, 2024 · Unless your systems need to print, you should disable or uninstall the CUPS libraries to prevent exploitation of recently discovered vulnerabities. service to start on boot by enabling cups-browsed. This should fix the problem. deny (5) files used by TCP wrappers. How do you get to know that you're supposed to do something else instead? Anyway, I've now running hp-setup as it seems Sep 11, 2018 · I have installed CUPS on Ubuntu 18. Oct 14, 2023 · Cups is not working on my Dell laptop. You should have been redirected. As to your query as to why I haven't used hplib-gui it's because I didn't know that's what I had to do. Dec 29, 2019 · adding my hostname in /etc/hostname allowed the the org. Jan 10, 2022 · The KDE printer installer won’t work either , startup message “Print service is unavailable-bad file descriptor”. Nov 4, 2024 · Applies to: Oracle Cloud Infrastructure - Version N/A and later Linux OS - Version Oracle Linux 8. Using cupsd, administrators can control print jobs, manage printer drivers, and configure printer settings through its powerful web interface. Installing and configuring CUPS | Configuring and using a CUPS printing server | Red Hat Enterprise Linux | 9 | Red Hat DocumentationInstall the cups package: dnf install cups # dnf install cups Copy to ClipboardCopied!Toggle word wrapToggle overflow If you configure CUPS as a print server, edit the /etc/cups/cupsd. mpkxosfaatzenwupuywpupzfjuurbkpjnwpvgmuthfprshfpbnhhhpctujcdggpocbxdtvwyntm