Ubuntu Security :: 631/tcp CUPS / Close Port / Stop This Service / Tell Update Manager To Shove Cups?
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.....
Running 10.04, just installed a ton of updates from Update manager.Printer is HP Officejet 6210Everything working fine up until after installing updatesWhen I try to print I get error message. Starting to troubleshoot tells me that CUPS service is not running, when I try to locate using http://localhost:631/ I cannot connect.Checking Synaptic it seems everything is installed that should be
The last complete update failed on one package (Cups Common - 1.0 mb), each time I login the update is offered via update manager and each time it fails with this message:
W: Failed to fetch http://security.ubuntu.com/ubuntu/po...ntu3.6_all.deb Connection failed [IP: 91.189.88.31 80]
can anyone shed light on this - (I'm running 9.04 Jaunty)
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
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:
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:
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.
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 .
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?
when i use the cups web interface to add a printer (administration -> add printer) cups starts looking for printers on the network. how do i make sure it does not do this (this annoys the switches at work and my port gets disabled)?
Trying to print from my laptop to friends wireless printer. I see his printer "7600 Series" in Network - File Browser. How do I print to his printer. I have text document. I click on "Print", but only "Print to file comes up".
I did System -> Printing -> Help -> Troubleshoot Got: CUPS Service Stopped The CUPS printer spooler does not appear to be running. To correct this choose system -> Administration -> Services There is not "Services there" What to do? Ubuntu 10.04 LTS
installed lenny and am trying to install brother dcp7010 again:
1) i can't start CUPS server with /etc/init.d/cups restart "file not found", there is a cups@ link in /etc/init.d.
2) when i install dcp7010 cupswrapper
dpkg -i cupswrapperDCP7010-2.0.1-2.i386.de it ends with " lpinfo: Verbindung zum Server nicht m�glich: Verbindungsaufbau abgelehnt lpadmin: Verbindung zum Server nicht m�glich: Verbindungsaufbau abgelehnt" (connection to server not possible, refused)
3)[URL] doesn't work.
4)foomatic-gui can't find the installed dcp7010 lpr-driver
brdcp7010lpr-2.0.1-1.i386.deb, (a couple of days ago it did)
This is frustrating because it worked in etch and worked for awhile in lenny. The dcp7010-scanner does work.
After a recent software update I can no longer connect to the Cups server. My printer isn't listed anymore and won't let me add one. Cups was listed in the update so i think the update broke cups. I'm getting: "Failed to connect to server" when i try to connect to 'localhost'. What can I do?
Is there a way to upgrade cups to support the latest printers? For example if I am using 8.04 LTS server and I buy a newish printer, it won't work. Am I able to add a repository or apt-get upgrade to get the latest version?
Installed the latest updates on 10.10 and the update froze during cups. So after leaving a couple of hours while did something else I had to abort the updates.
This of course borked the updater so had to use the command sudo dpkg --configure -a
Then I tried sudo apt-get install -f
Which again broke at trying to install cups.
I then tried a forced uninstall but this complained about missing dependences. I corrected those but it still hangs on removing cups.
If you try an re-install the same the problem hangs.
I'm trying to setup a print server on Debian Lenny. This dedicated server is connected to an USB printer (Epson Stylus Office BX300f).
I've successfully installed cups and the guttenprint drivers from the repositories but then realized that I needed to upgrade the printer drivers if I wanted to get support for my USB printer. Thus, I built and installed the latest version of Guttenprint (5.2.6) from the sources but this procedure has not added any new driver (ppd files) into cups. I've read that cups-genppd and cups-genppdupdate must be used in order to generate the necessary ppd files and update them into the cups folders.
Well, I can find cups-genppd.5.0 and cups-genppdupdate.5.0 in /usr/sbin but I wonder if these binaries are related to the old drivers (gutenprint 5.0.2) and not to the new ones (gutenprint 5.2.6).
Anyway, I'm a bit messed with this stuff. I've read the man pages but there are very few examples explaining how to upgrade drivers in cups.
My printer no longer prints anything with exception to the TestPrint page.Any other job I give it, it says is "completed" in the queue, though nothing has printed. Installed cups again, after a complete removal. No change. Heres what troubleshooting gave me:
Code: D [06/Mar/2010:07:26:01 -0500] cupsdSetBusyState: Dirty files D [06/Mar/2010:07:26:01 -0500] cupsdReadClient: 12 POST / HTTP/1.1
Using Debian Lenny.I am new to printing with Linux and would like some help with CUPS. I have CUPS set up to work with my printer.I read through the documentation, but still have some problems.
1. How should I configure cupsd.conf for security?
Quote:
Portwalling
* By default, cups will listen on every interface. Unless you want to offer your printer to the world, you must block this.Although you can firewall this (and that is a good idea anyway),you can also not have cups listen on your Internet connection.This also prevents any possibility of a root exploit from the Internet. Of course, you still have internal crackers to worry about...
* In cups.conf, comment out the lines: Port 80 Port 631 * Replace them with: Listen 127.0.0.1:631 code....
How do I create a symbolic link between programs?When I opened Xpp it said Printer:destination not available.
4. Can I adjust the text size on text, pdf or html files with Cups or do I need another program for this?
I use the direct ip instead of the hostname and have recreated the printer several times and the issue doesn't go away. Test prints go through fine to the printer but when I actually try to print something this error comes up from CUPS.
I've recently been taking a look at my router settings and I've realized i have my vnc port open for some reason. I don't know how or why it got opened because I've only used vnc within my private lan. Anyway, the problem is I couldn't figure out how to close that port on my router, so I just uninstalled all the vnc software from my computer so it wouldn't act like a vnc server for anybody trying to access it from the outside. So, effectively, I cannot vnc into my computer from outside my private lan, but when i port scan my public ip, the vnc port still appears open.
I'm wondering if there's something i'm missing. I'm sure it must be something in the router that I haven't figured out... something that's keeping port 5900 open.
I am trying to setup LDAP server on Ubuntu 10.04 and am sticking to the old /etc/ldap/slapd.conf file configuration.
I had to comment ldapi:/// from /etc/default/slapd since it was giving 'Address already in use error'. Also had to juggle with pid directory and file issues
After that I was able to start the slapd daemon (service slapd start) but now I am running into multiple issues:
1. Can't stop the service with service slapd stop
Code: ## Service stop returns 0, maybe because start-stop-daemon is not giving error #service slapd stop Stopping OpenLDAP: slapd. # echo $? 0
Will switching to BDB database resolve this ?Also can't I slapcat at non-root user ??
I recently set up an Ubuntu computer for a friend who is new to Ubuntu and who is complaining that very often, Ubuntu's Update Manager pops up and asks for password to install updates. How could we make the Update Manager install updates quietly in the background without interrupting and asking for password? Maybe this should even be set as default in forthcoming versions of Ubuntu!
I recently set up an Ubuntu computer for a friend who is new to Ubuntu and who is complaining that very often, Ubuntu's Update Manager pops up and asks for password to install updates. How could we make the Update Manager install updates quietly in the background without interrupting and asking for password? Maybe this should even be set as default in forthcoming versions of Ubuntu!
OK, So whenever I need to read or write a text file, I'd always use text editor, And therefore and no need for the big and bulky open office, But now that I've un-installed it, It keeps popping up in update manager.
In order to keep my system clean, normally if Update Manager wants to update a package I don't want or never use, I use this as a trigger to first go to Synaptic Package Manager and de-install the unwanted package, then refresh Update Manager and continue with the wanted updates.
However when it wants to install something completely new that clearly I don't want or need, how do I tell Update Manager to permanently remove it from the update list?
i updated both browsers i have and lost my secure log-in pages (no padlocks showing ) concerning different Web mail accounts.Just before i did these updates i checked an unrelated thing on-line regarding my sound card of which i kept a copy of and got this message below :
!!ALSA/HDA dmesg !!------------------ [ 12.762633] cfg80211: Calling CRDA for country: AM
Libnss3-1d xulrunner-1.9.1 xulrunner-1.9.1-gnome support
After click on install updates and entering password, a message says "Some of the packages could not be retrieved from the server(s). Do you want to continue, ignoring these packages? Yes/No.
If I answer No, this message appears:
W: Failed to fetch http://security.ubuntu.com/ubuntu/po....10.1_i386.deb 404 Not Found [IP: 91.189.88.31 80]
If Yes, it tries to download but immediately:
W: Failed to fetch http://security.ubuntu.com/ubuntu/po....10.1_i386.deb 404 Not Found [IP: 91.189.88.31 80]
It has always installed the updates with no problems, until these 3 updates remain in pending installation status.
I'm trying to setup a headless CUPS server, but no matter what I do, I can't add a new printer. Not using the web interface, or the GUI of another computer connected to the CUPS server.I always get to the point shown in the attached screenshot, and then I am asked for a password, which never works. I've practically slaughtered my cupsd.conf, and it now looks like this:
Code:
LogLevel info # Allow remote access Port 631 Listen /var/run/cups/cups.sock
[code]....
it looks like the above should tell CUPS to never ever ask for authentication, but as you can see in the second screenshot, it still does!
