Ubuntu Installation :: Purge CUPS Jobs Older Than 1 Hour?
May 12, 2011
I've setup two printers through a system running Ubuntu server that are shared with 30-40 users on our school network.
If the printers run out of ink or paper, they stop printing. The lazier members of staff don't proceed to recharge the ink or paper so when somebody does, hours later, the old jobs start printing again which the teachers no longer need or want.
I'd like to automatically have my system purge print jobs older than 1 hour. I'm running CUPS and sharing the printers through SAMBA. How do I do this?
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Nov 16, 2009
Since my last server upgrade, last Thursday, cups is having a strange behavior: I have 3 text-only printers, and an application that prints to them. The application, to print 5 lines, it sends 5 jobs to the printer. Before the upgrade, all the jobs where printed sequentially, without any delay. After the upgrade, cups makes a small delay (5s or more) between every one...Its very annoying for the users...
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Apr 30, 2011
I have a problem with cups dropping print jobs. The machine fedora 13 installation using cups 1.4.4-10
The dropped jobs happen only rarely happen and therefore is difficult to debug the problem since it doesn't happen 99% of the time. This morning (while in the shower) I wondered if the lost jobs are lost because they are timing out, perhaps because of slow input from a user. I can test this more later in the week..
The print jobs are initiated from within a COBOL program. COBOL opens the print file as output and at this stage a job appears in the print queue with a status in the print queue of "held".
The user types in various bits of information and when complete the program executes the final write to the output print file. The job is somehow released and then is physically printed by CUPS. I suspect that if the user is slow the "held" job times out and then the job is lost.
There are a number of timeout directives in cups.conf but I am unsure which might be appropriate in this case. Or perhaps there is some other timeout thing happening.
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Feb 17, 2011
I've set up a cups printing server using ubuntu 10.04.1 LTS. The printer's a HP Laser Jet 1018 I can connect to it over vpn using openvpn from my netbook which is also running ubuntu 10.04.1. I can connect to the printer all right and test page prints without a problem. But if I try to print anything else, it take at least 5 minutes before the job is successfully send and printed out.
Also, on the client side, for example, the file size would like 500k, and when it finally prints out, the file size on the server side is less than 10k. The file is a black and white document, and from what I can tell, the printed page is not missing any information.
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Feb 7, 2011
I have a 11.3 machine as a print server sharing out a printer Then I have two clients using that printer. One 11.3 and one 11.4 6 of 6. When I print from LibreOffice on either machines every other print job disappears. I'm a bit puzzled ! It's not random it's exactly every other that doesn't show up at the server. It's not in the server job log.
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Dec 6, 2008
I initially had a problem accessing the CUPS interface (see my other post) and got that resolved by adding the user "cupsys". Now, everything "looks" ok, and when I print a test page, it shows it as completed (in CUPS). However, the page never prints.
The printer is a Canon MP600 (using the canonmp600en.ppd file to configure it). Here's the output of my conf file.
Code:
# Show troubleshooting information in error_log.
LogLevel debug
[code]...
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Feb 11, 2010
I have a home Linux box with Mandriva 2007.1 and installed a Samsung ML-1210 I use it as a network printer. Sometimes the printer jams the paper and it won't print after it.
The situation is as follows: The paper gets jammed. I clear it and everything looks fine. When I want to print the print job stays in "processing" and the printer doesn't do anything. It doesn't matter if I send the job locally via VNC or from a remote machine with IPP or from a windows client with samba. The job is received, gets to the processing phase but nothing happens after that. It seems like if the printer wasn't connected. The only way I was able to solve this is to completely restart my Linux Box.
- Switching off/on the printer doesn't work.
- Plugging the USB cable in a different slot doesn't work either (I even replaced the USB cable)
- Restarting the CUPS and SAMBA server won't help
- Switching the printer offline/online in CUPS does nothing
- I tried to change "reprint after paper jam" and other settings, still doesn't work.
It looks like nothing helps, but after I restart the box, everything works again.
There's a line in the cups error log that is suspicious, but I don't know what to do with it:
SLPReg of "SAMSUNML1210" failed with status -20!
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Feb 26, 2011
Not sure when CUPS started acting up. I have the latest 13.1 current software installed.The first page to print is always OK, but all succeeding pages are overwritten. The second page shows the first page on top of it, and the third shows the preceding pages on top of it - and so on. Has anyone else seen this problem?I guess the printer buffer is not getting flushed correctly. If my configurations were trashed in some way, I don't know where to look for a fix.
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Mar 24, 2010
I recently decided to try KDE4 and would like the change the clock on the panel to display 12 hour format and not the default 24hour format but i can not find where to change this option currently the clock looks like the attached picture. Gnome has this option and I would like to see it in KDE if it exists in the default clock. I am willing to replace the default KDE clock with a seperate widget if one exists for this.
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Jun 17, 2011
I just switched over to Lubuntu, and so far, it's been great.It's rendering quite well with my laptop, even though the fan is constantly running.I've had some small annoyances that I haven't been able to figure out. How do I get the power button and/or other related actions to the 'start' menu? Is there a way to drag and drop applets like in Ubuntu? How do I setup default brightness like in Ubuntu? How do I change the time to normal US time (12 hour instead of 24 hour)How do I change the time to a 12-hour instead of 24-hour?Is there a software center?
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Aug 5, 2010
I need to change the time displayed in the task bar from a 24 hour clock to a 12 hour format. I could not find the relevant settings in OpenSuse 11.2 and same is the case for 11.3 as well.
how to make the change? I have tried System Settings ---> Computer Administration ---> Date & Time; but I was not able to make the desired change.
Similarly, I have a digital clock widget that shows GMT + 5.5 hours and I need to change that to 12 hour format as well.
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Sep 21, 2010
I've just upgraded from ubuntu 9.10 to 10.04 64 bit, and everything went well except for the fglrx driver installation, which failed. I've checked the troubleshooting guide and tried to purge the drivers, with only partial success.
When i type dpkg -l '*fglrx*'
I get this,
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
[code]....
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Nov 24, 2010
I have searched around a bit and am having difficulty purging blockcontrol off my system. I am running Ubuntu 10.04 LTS i686 version. I have been able to remove some of the programs attached to blockcontrol but cannot remove blockcontrol. The synaptics package manager and console root access will not rip out blockcontrol. I want the entire Moblock/Blockcontrol set off the system.
[Code]....
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Feb 15, 2010
Fresh 12 install. I did a yum install yum-fastestmirror and it took over 30 minutes to download its database, at a speed of 5-9 KB/s. Drove me nuts to wait 30 minutes to download a 60Kb program. Then after the install of fastest-mirror, I thought I was out of the woods, and launched a YUM UPDATE, and its still downloading fedora/filelists_db at 13KB/s. Estimated to take over 20 minutes. After that, it will be downloading the 500MB of stuff - hopefully at a better rate. Sigh!! No way to speed this up?
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Jun 10, 2010
My Printer Brother DCP-8045D only prints, when I send the computer (Lenovo X200) to suspend (or shutdown) and wake it up again, whilst a document is in the printer queue.
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Feb 24, 2010
I have a printer configured on my Ubuntu server using CUPS amd made it available to the local network. The printer is recognized on my other Ubuntu machine without any problems.
But on my Suse laptop, the printer is not recognized. Using the YaST printer Configuations, I choose the option "Recieve Printer Information from Remote CUPS servers. But no printer is found.But... when I choose Do All Yout Printing Directly via One Remote CUPS server and enter the correct IP address (192.168.1.100), the printer is found andI am sure the printer info is broadcasted because it shows up on my second Ubuntu PC. But why is it not recognized by default on my Suse machine
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Feb 26, 2010
I know this is listed somewhere but I cannot seem to find it -
How to I add a root users to access the 127.0.0.1:631 interface for CUPS?
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Feb 27, 2011
Running: Ubuntu 10.10
I'm in a bind and I don't know how to get what I want. Nmap shows ipp running cups on port 631. Great, simple enough I uninstall cups, along with its dependencies. A new portscan reveals that the port is closed SUCCESS, but... Ubuntu Update Manager nags me @ every restart about the "important security" updates. I can't lock the version of cups in Synaptic, because cups is not installed! So you see I'm in a bind. If I have cups installed I have an open port, and if I uninstall cups the update manager nags me. What do I do? I've tried:
- stopping the cups service and issuing the chkconfig cups off command... (doesn't close the port)
- uninstalling cups... (update manager nags)
- fuser -k 631/tcp (great, but @ reboot the port is still open)
Please teach me how to close this port / stop this service / tell update manager to shove cups.....
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Mar 22, 2011
I've been trying to figure this out for longer than I care to admit. We upgraded our print server (sysadmin) to 64 bit lucid and that moved our cups server from 1.3.7 to 1.4.3. We have a remote server that is still 1.3.7 (printhost1) but version difference doesn't seem to be relevant to the problem.
If I'm on console on sysadmin and do an lpr to a printer on printhost1, everything is copacetic. However, If I'm on a host that specifies "ServerName sysadmin" in its "/etc/cups/client.conf" access_log on sysadmin shows:
172.16.10.52 - - [22/Mar/2011:11:11:40 -0500] "POST /printers/103_hp4250 HTTP/1.1" 200 306 Create-Job client-error-not-authorized
and error_log shows:
E [22/Mar/2011:11:11:40 -0500] Returning IPP client-error-not-authorized for Create-Job (ipp://localhost:631/printers/103_hp4250) from 172.16.10.52
We've been using this method of sharing printers between locations for years and years so it not working now is a surprise.
cupsd.conf on sysadmin looks like this and is as open as I can imagine:
ServerName sysadmin
ServerAlias *
ServerAdmin webmaster
FileDevice Yes
SystemGroup staff
LogLevel info
code....
Additional symptoms are that only printers locally defined on sysadmin show up when the client uses System>Administration>Printing in gnome. Same thing when you browse printers in windows on our samba domain controller that backends on CUPS.
I just know that it's something simple that's going to make me facepalm but I'm at a loss.
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Oct 27, 2010
I do a volunteer work for World Computer Exchange, or WCE, a non profit org.WCE get a lot of old-ish (gettins less P3s, and more P4s now) computers, install Ubuntu and ship them to schools,libraries,etc. to the developing countries.When I say Ubuntu, I often intall Xubuntu since the machines are slow, but if it meets the Ubuntu requirement in terms of memory and disk, we often install Ubuntu Ubuntu.And, installing Ubuntu in general takes time. Most people don't notice "it's slow", but if you install it to a 10GB IDE ATA4 disks,it often takes a few hours. I can do it to a handful of machines but there are so many machines to deal with.
I modified the installer to do unattended installation so it is less of hassle now but I'd like to know what I can do to speed up the installation.If it's faster, we'd be able to go though a lot more machines.Also, it would be great if it's an easy process without network. I personally use a network (pxe boot and unattended installation), but there are many volunteers and it's logistically far easier if it can be installed without it.I give out a modified CD to those volunteers and they just put it in and watch the progress of installation. Since machines often have issues with hardware, it's not a simple process even if it's unattended installer.
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Feb 24, 2011
cups does not start with the server. When I try to start from the terminal I get the error message
cupsd: Unable to read configuration file '/etc/cups/cupsd.conf' - exiting!
cupsd: Child exited with status 1!
The log files show nothing. cupsd.conf exists. It is user - root and group - root with permissions set at 0644.
My interpretation of this is that the program is not launching from either boot or terminal for a fundamental reason. I do not quite see what that reason is .
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Mar 30, 2010
I took the splash about 3 months ago when I picked up a cheap book on Ubuntu that came with the 6.0 release. I had an old clone PC that I built back around 2000-2002. My apologies, but I can't quite remember the hardware specs exactly. But anyway version 6.0 worked pretty good, and I soon after upgraded via the Synaptic manager to 8.04. Everything ran a bit better on this release.
I was working on upgrading to 9.10 eventually, so I went from 8.04 to 8.10 first. However, when I rebooted after the install the GUI failed to launch. I got a lot of text on the screen saying certain things were being checked and there was an [OK] next to all of them save one. Nvidia, my graphics card had a [FAIL] next to it. I'm inclined to think this is the problem. I'm guessing the hardware is a bit outdated for the version of Ubuntu I am using?
I tried a couple of reboots and got the same messages. Eventually found my way into the Recovery mode where all the options were recovering 8.10 - not my previous version. So my question is how do I roll back to 8.06, or is there a way to update the hardware drivers so it will run on 8.10 without buying new hardware? I did somehow manage to get to a Prompt where it was asking for my Linux Login and Password.. it let me login and now I have a "DOS" prompt... not sure about the terminology if you still call that DOS or not. I'm a noob and still trying to learn the new lingo.
I don't have much to lose.. some pictures, but I figured out how to navigate to those at the prompt so I'm going to save those to disk. If I have to wipe the drive and start over I don't care, but I thought I would throw out a post here and see if anyone had a recommendation.
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Jan 30, 2011
I just decided to completely switch from windows 7 to Ubuntu 10.4. I wiped windows 7 and attempt to install 10.4. it installed half way and gave me an error "cd drive disk error". So I then downloaded 10.10 and burned iso image on a brand new cd disk. Now I am trying to install 10.10 (latest version), and its stuck on Ubuntu Splash screen for last half an hour. It does not seem to be doing anything. What shud I to complete the install?
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Feb 3, 2010
I have problem installing a program (GTNets) since it requires an older version of g++ (3.3), while the current version of g++ is 4.4 in my ubuntu installation (vers 9.10). Can anyone give me recommendations on how to solve this?
I guess that there should be able to install an older version of g++ in addition to the current g++. Furthermore, the current should be the default, while the older is an optional version.
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Oct 3, 2010
The upgrade instructions say you can use the upgrade manager to go from 10.4 to 10.10. I am currently running 9.10. Will this still work? Or do I have to go to 10.4 first? Or can I download the 10.10 alternate install iso and upgrade directly with that for both my Ubuntu and UbuntuStudio installations?
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Aug 16, 2011
I do some volunteer work repairing and re-purposing older computers for the Salvation Army Thrift store where I live. Of course most of the computers we get are older. My reason is to get some of the poorer kids a fighting chance at school. We sell these things for next to nothing to accomplish this. I include free tech/training support for 30 days to get them started as. My problem is that finding a version of ubuntu and openoffice that will run on them is becoming difficult. Any suggestions as to a version that works for those not real familiar with computers?
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Feb 12, 2010
I have installed Slackware 13 on one of the hard disks of my computer in order that I can get it working properly before changing over from 12.2.
My main problem is that I cannot get CUPS to change from 'Letter', which I presume is an American size, to A4, has anyone else had experience of this problem?
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Jan 20, 2010
this is my first time actually asking for help here, so forgive me if I make any mistakes. The other day I was trying to install Ubuntu 9.10 on my mom's old system (not too old, has vista on it) and even from the live cd it wouldn't boot. Then I tried 8.04 because I know that works on my XP system. However it would freeze during boot but at least showed that it was booting (the bar was starting to fill).
The system is an eMachine T5226:
CPU : Intel Pentium D Processor 925 (Dual-Core)
64-bit processor with Intel EM64T Technology
(Each core operates at 3.0GHz | 2 x 2MB L2 Cache | 800MHz FSB)
Operating System : Genuine Windows Vista Home Premium
Chipset : Intel 945G
[Code]...
Since we bought it it's been upgraded to 2 GB of ram and has a nVidia 8400gs video card and a belkin wireless adapter now. I can't understand why the live cds won't fully boot since my single core 2.2Ghz boots just fine with 8.04.
I was thinking of trying 6.06 to see of that might work. However I was unsure if the system is capable of running Ubuntu and might need Kubuntu or another distro.
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Feb 3, 2010
i had a system running ubuntu karmic and grub2. Last day i installed fedora 12 on another partition and also installed the older version of grub that came along with it(because i was more used to it). The current status is:1. can boot into fedora, cannot boot into ubuntu.
2. can boot into fedora, chroot into the ubuntu partition
3. no data loss
However, i just can`t boot into ubuntu from the older version of grub which i have presently. Question is: How do i boot into karmic from the older version of grub? do take some time off and reply of you know the answer!
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Apr 3, 2010
I just installed the latest version of Ubuntu on my Toshiba Sattelite A25-207 laptop. I totally erased my previous Windows XP OS and everything else. Everything is great, execept the screen resolution. The resolution is set at 800 x 600 and I know that my screen can handle bigger. How do I change this?
I am totally new to Ubuntu and I have no idea how to play with code.
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