OpenSUSE Network :: Firewall Is Blocking Printing To Remote Printer?
Jan 10, 2010
Printer is connected via USB to server PC running OpenSUSE 11.1 Client PCs are running 11.1, XP, Vista No problem printing from the Windoze machines
Printing is trouble free with the 11.1 client's firewall disabled, but no printer is available with firewall running.
In hopes of diagnosing the problem I figured I'd open everything I could think of until the printer remained available with the firewall running. Then I planned to start removing exceptions one at a time 'til removing one caused the printer to disappear.
I've gone to Yast>Security and Users>Firewall>Allowed Services>External Zone and tried addingSamba Server
NetBIOS server
Samba Client
Samba Server
VNC
[Code]....
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Feb 12, 2011
I have a virtual Linux box with a static IP in the cloud.
I have remote sites that have networked PCs that normally act as terminals but also have more than one printer on the Windows Network.
I would like software on the Window's machine to access the known IP address of the server and advertise the printers on the network so they can be printed to with lpr or cups. I don't have a problem manually setting up the printers on Centos if that is necessary. (But I need to know how to do that as well).
I need to know if I can setup a VPN on Windows without it stopping regular internet traffic and how to do it.
I need to know all the steps (what to install, what to issue commands for) to make this happen without using a GUI if possible and if the GUI is easier I need to know which GUI to install.
I also do not have a problem with using a VPN router at the client side if that makes it any easier. Like a Cisco RV120W.
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Aug 19, 2010
Ok here's my setup :
SuSE 10.0 X86 32 acting as my internet gateway and firewall.
eth0 is my internal interface network 192.168.0.0/24 IP 192.168.0.254 dsl0 is my internet connection and is a single ip PtP connection to my ISP.
My internal network is masquaraded onto the external network.
I run an smtp server on my gateway box that I need to be accessable to both the internal and external networks.
However I want to prevent machines on the internal network from establishing connections to external smtp servers, but still alow them to connect to the smtp server on the gateway to send email.
NOTE I do not want to force attempts to connect to [URL] 25 to be re-directed to my internal server I just want to drop or reject the connection.
The firewall up until now has just been configured through YaST, but am not afraid to edit script files if needed
The reason for doing this it to prevent spambots from being able to send through my isp, I keep my own machines clean but sometimes get asked to disinfect machines for other people (family members etc), where I need to connect to the outside world to get updates/virus defs etc, but don't want them spamming from my network.
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Sep 8, 2010
I've setup vnc over ssh tunnelling however the Suse firewall seems to be blocking it. On the local host I have this in ~/.ssh/config:LocalForward localhost:5900 remotehost.com:5900 The problem is that this only works when I either disable the firewall or add an exception for VNC. Both of these actions defeat the whole purpose of ssh tunnelling since they leave my VNC port open to the outside world (very insecure).
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Apr 7, 2010
I want to print from my linux box to my win7 pc that has a shared printer. I have cups installed and tried to add pritner using samba, but was unsuccesful, gave me an error when trying to add. The guide i followed is: Yet another Linux to Windows printing tip -- Debian Admin The printer model is a dell 2330d laser printer, it is not in cups, so i added the ppd file i got off the dell support site. I am aware that there is a native suse driver, but i want to print to the windows printer.If possible I would like to know how to do this via command line instead of the GUI.
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May 31, 2011
I have a server machine that is running SUSE Linux Enterprise Server 11. I set up a mysql server there. Now I want to access this mysql server from my laptop. I used the following command,
> mysql -h 12.246.5.70 -u davidehs -p
I found if the firewall on the server machine is running, I can not connect the mysql server from my laptop. If I stop the firewall first, and the do the connection, I can access the mysql. how to keep the firewall running and allow the remote mysql incoming requests?
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Jan 28, 2011
I have a server machine that is running SUSE Linux Enterprise Server 11. I set up a mysql server there. Now I want to access this mysql server from my laptop. I used the following command,
> mysql -h 12.246.5.70 -u davidehs -p
I found if the firewall on the server machine is running, I can not connect the mysql server from my laptop. If I stop the firewall first, and the do the connection, I can access the mysql. Do you guys have any idea how to keep the firewall running and allow the remote mysql incoming requests?
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Jan 11, 2010
the remote printer appears in cups but if I try to do a test page i get a page not found error. it even says ready under yast printers.it is set up on a remote desktop using cups
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Feb 26, 2009
From my Ubuntu Server 8.10, when i attempt to print to my network printer(Brother HL2700cn) it prints garbage and multiple blank pages. I also tried installing the Brother print driver (BR2700_2_GPL.ppd) as instructed, placing the file in directories: /usr/share/cups/model and directory /var/spool/lpd and restarted cups: /etc/init.d/cups restart. after all that, i get the same results, garbage and multiple blank pages. the printer has a static ip address
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Mar 28, 2009
I have a recently installed dual boot system with Centos 5.2 and Fedora 10. I connect across a LAN to a network printer HP Laserjet 1320n I have been through the printer installation / setup on both systems Fedora works fine, Centos doesn't want to know. Sending anything to print just adds it to a queue that is never printed.
I have looked at the printer management through Firefox browser localhost.localdomain:631 If I send a test page from here (CUPS) it reports the document as printed, but the printer just sits there blinking an orange light indicating an error.
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Jan 9, 2011
I have a HP c4100 series printer connected to my Ubuntu computer. This computer prints just fine. I also have a Windows Vista computer that's connected to the Ubuntu HP via CUPS (by installing network printer with path of http://xxx.xxx.xxx.xxx:631/printers/printername). This computer also prints just fine. My problem is I just got a new Windows 7 laptop, and connected it to the HP via CUPS the same way as the Vista machine. It installed fine. However the Win7 Laptop will not print. When I try to print, it acts like it is going to print, but never gives an error and the file never makes it into the printer queue (on either the win7 or ubuntu machines, i have tried printing with both queues open to see what happens).
Things I have already changed:
On the Ubuntu machine:Changed all the printer settings on printer to allow any and all connections including printing from the internet.
Edited the /etc/samba/smb.conf to allow CUPS printing and allow guest access
On the Win7 machine:Fixed my LAN security settings (disabled require 128bit encryption, send LM and NTLM responses)
Reinstalled printer several times. I have googled this issue almost every day for a month and tried every setting that I have came across (changed them back if it didn't help). So far nothing has worked for me, and this is my last ditch effort to get this printer working. Does anyone know why I can not print from my Windows 7 machine to a printer connected to my Ubuntu machine? Especially when I CAN print from the UBUNTU and Vista machines.
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Aug 8, 2011
I've run into issue on my Linux machine (running 10.04) when I want to print. When I go to System>Administration> Printing, I cannot find the printer connected to the network through my dad's computer, running OS X 10.7.
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Mar 25, 2011
I suspect this is an initial configuration bug. All firewall logs seem to be going to all
three files. That causes a lot of clutter in the log files, and makes it difficult to see whether there are any serious problems being logged.
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Feb 3, 2010
i have a hp 6500 e709a printer. have configured for network printing and would like to use the scan facility.i have tried to scan from the printer but it does not find the computer. the hp documents mention advanced firewall information on incoming udp ports and tcp ports etci believe it is with my machine as my son has a windows box with the hp software and i have managed to scan from that machine.
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Feb 1, 2010
I'm trying to add my Samsung SCX4500W printer to my opensuse 11.2 machine running KDE.From Yast->Printer->Add printerI am able to set the printer up, however there is no driver for my specific network printer. Samsung does provide a linux driver but I have no idea what I'm doing when installing peripherals on linux basically
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Jun 4, 2011
I'm having trouble with printing a PDF that is in landscape mode. When I tell Okular or Adoble Reader to print a document in landscape mode, the text is Illegible. If I tell it to print as portrait mode, then I can read the text but the end is cut off and there is no way for me to tell Okular or Adobe Reader what the margins are. That option was grayed out.
I'm having another problem: When I cancel the job from the CUPS interface, it says it canceled the job but the printer keeps going and finishes whether I want it to or not. With 11.2, I was able to have it set up so that when I told it to stop the printer, it did so right away. Why can't I get the printer to stop in the middle of a job if I see something wrong with it so that I don't have to waste ink?
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Jan 23, 2011
In December I finally filled up my root partition and broke Suse 11.1. I therefore resized my partitions and installed Suse 11.3 on /root. I didn't not touch my /home partition.
Last week I had a paper jam in the printer. This has been cleared and as far as I know the printer is now fine. However the printer will not print. In url, it says printing has been paused, but I cannot find resume printer/printing anywhere.
I have tried Google, but the instructions do not appear to match where I would find 'resume printer'.I am able to provide further information.
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Nov 2, 2010
I have an HP C4795 printer and lately when I print something nothing happens until I reboot and then the printer will print. How can I fix this problem? This was printing from Okular pdf reader.
I'm running openSuse 11.3 KDE 64 bit.
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Apr 9, 2011
I am not sure if this is the right place for this or not, but I am having a problem getting my HP6300 series all in one printer to print photo's with proper colors, all colors seem to run. I have hplip installed and set up to print photo's and it still prints colors like runs instead of correct.
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Sep 14, 2011
As too my question, at this time I dont control the router/firewall an I would like to block a port thats used for guild wars on my workstation for a while. The reason for blocking is children have abused it an lost it.In this case I am trying to block outgoing traffic on port 6112. I have tried setting up a proxy server on the workstation, but the game seems to ignore it an jump on. Due to the environment, I enabled the workstation SuSEFirewall2 firewall an tried setting up "lo" as a internal an configure the firewall as a router, then disable 0/0 an configured for 0/0,tcp,443 an re route port 80 traffic to proxy.
When I had my own internet, I had a transparent proxy enforcing rules for access times. So setting up a proxy on each machine would not be a bad thing, even if it took some creative thinking. I am trying, but seem to be missing something.Ideally, I would like to setup a transparent proxy, as my kids have learned alot about system administration an know to check the proxy module. If all they have to do is un check "Use Proxy" an by pass a local proxy server, then I am kinda defeated. An applications such as firefox have a proxy setting they could set to none instead of system
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Apr 6, 2011
what I need to do to the firewall in order to make a shared printer available to other machines on my network?
I have the printer set up and have tested it with the firewall switched off, but as soon as I restart the firewall, the printer is inaccessible.
I thought that all traffic on the internal network was allowed, but it seems that I need to create an explicit rule in order to get the shared printer working. Unfortunately, I haven't been able to figure out how to do that yet.
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Oct 23, 2010
I have Canon MF4150 printer. I have downloaded Linux Printer Driver (UFR II) Ver.2.10E from canon asia site. Adding the printer and printing work fine, except that after one printing, the printer stops working. There is no error message./var/log/cups/access_log shows
Code:
localhost - - [23/Oct/2010:19:53:55 -0500] "POST /printers/Canon-MF4100-Series HTTP/1.1" 200 45240 Print-Job successful-ok
[code]...
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Aug 26, 2010
so how can I locate a printer behind a firewall? Is it possible to enumerate the subnet behind a router ( even if a connection has not been marked)?
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May 5, 2011
I have WiFi printer, HP DeskJet F4500. If suse firewall is on, yast doesn't see that printer. If I turn firewall off, Yast sees printer and install it just fine. Problem is, that when i start firawall again, yast denies whole printer and turn it off mode in Yast. What firewall rule i have to make to get this work?
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Jan 17, 2010
Having made the transition from a certain widely used operating system to linux, suse 11.2, x64, successfully and pleasantly we are still left with a few problems.One of these is a few applications i have to use which run only in that old OS. ?To that end I have installed VirtualBox and got them to run with one glitch. I cannot print from VBox to my HP LaserJet 4000, lpt1 printer, which works fine in suse. Searching and posting on the Vbox forums turned up that lpt1 is not supported in the current vbox and that I need to set up a virtual network, set up the printer as a network printer and set it up as an lpd/lpr printer in Vbox WinXP. Have tried many different ways to do this without success, I think the problem is I do not know how to set up a network printer in Linux.
The virtual network is vboxnet0, which does show up in ifconfig, along with my eth0 net, and I can ping the windows guest, gateway and the host from either side host:suse/guest:winXP) respectively. Have tried numerous ways of setting up printer in YaST which works in suse but still does not work from WinXP guest. Have read the suse manual and several sources and searched forums with no results.Finally I am thinking I just don't know how to set up a network printer in linux. Using cups, kde, suse 11.2, don't know what else to tell. Samba is installed, although I am not using it to the best of my knowledge.
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Jul 4, 2011
My firewall keeps blocking something called CPQ-Wbem. There have been about 10 instances of this.
A machine on the network is advertising it runs, or looks for machines running, Compaq Insight Manager on TCP/2301. If the machine isn't yours or you haven't enabled Compaq's web-based remote management then silently drop it.
Now as far as i know i do not have a network, just a dsl connection. I also do not own a Compaq computer. So if someone who has some knowledge of this could you explain to me how a " network is advertising it runs, or looks for machines running, Compaq Insight Manager on TCP/2301 " . This would seem to me to be a local network thing not a www thing ?
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Oct 6, 2010
I updated my system with system updates and when i restarted.I couldn't access the internet from my desktop. i got on laptop internet worked just fine..i disabled firestarter and mozilla connected to the internet just fine. I turned firestarter on. and i couldn't reach anything.. What do I have to do to get firestarter to allow me to connect to the internet via firefox
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Sep 14, 2010
My home computer has 11.3 and SuSEfirewall enabled. It connects to the net over the wireless and SuSEfirewall has this connection in the external zone.
I can successfully ssh into this computer from remote (the work computer) but none of the ssh port-forwarded connections work. I'm trying to tunnel VNC over ssh. I also tried setting http on the home computer to serve pages on a high-numbered port (8090) and tunnelling that but it also didn't work - proving that it's not a VNC problem.
Here are the relevant messages from the firewall logs on the home machine:
Code:
I don't understand why this isn't working now, I had the same setup on 11.2 and it worked fine.
The 95.91.92.92 is the public IP address of my home router, I don't understand why a connection would appear to be coming from there when I use ssh-tunnelling?
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Feb 18, 2010
We are switching from an uncapped 512kb line to a 4MB line at the office... One catch though. The 4MB line will only be linked to a 30GB account, without the option to top up. I therefore have been asked to put something in place to regulate what the staff download at work. Basically block movie, music and torrent downloads should be sufficient, but they would also like to have a list of where staff have been in case of abuse. I have tried OpenDNS in the past, but the guys took great delight in getting around this, and did it within minutes... I can't enter a proxy setting into their browsers, because they all have local admin rights on their Windows boxes and will just disable that. How do I do this on a server level, so that they can't get around this?
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Nov 17, 2010
I have a remote network that I manage consisting of a DLink DFL-210 firewall/router, and behind that a Dell server running openSUSE 11.2 and a collection of Windows XP/Vista/7 computers.
The Linux box is running OpenVPN as a server (that is how I connect to this network) and a client (it connects to a second server - running XP - at a different location).
The DLink router is the DHCP server and provides addresses on the 192.168.51.0/24 network. The OpenVPN server provides the 10.8.51.0/24 address range.
The remote network that the Linux box connects to is 192.168.54.0/24 via the OpenVPN network 10.8.54.0/24.
I have added routes to the DLink router to route all traffic to the 10.8.51.0/24 and 192.168.54.0/24 networks to the Linux box.
With SUSEFirewall turned off, after I have connected via OpenVPN from my remote computer I can ping all active 192.168.51.0/24 addresses. Other computers on the 192.168.51.0/24 network can ping computers on the 192.168.54.0/24 network. But if I turn on SUSEFirewall, neither of these work. However, I can ping 10.8.54.1 from any computer on the 192.168.51.0/24 network.
How can I set up SUSEFirewall to allow these networks to communicate with eachother?
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