OpenSUSE Network :: SuSE 11.2 Firewall Blocks Access After A Few Minutes
Dec 1, 2010
I have a fresh install of SuSE 11.2. I have installed Communigate Pro (Email server) and Webmin. From my workstation (on the same LAN), I can access the web interfaces for both CGP and Webmin right after the server boots up. But after about 10 minutes or so, I can no longer access either web interface. The server itself still functions normally. I can get on the internet with the server, and I can control Webmin via localhost:10000.
The only thing that allows me to connect to it from my workstation again is to either restart the server, or go into "Network > Linux Firewall" and click "Apply Configuration". What's going on that makes my remote access stop working?
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Apr 20, 2011
I'm getting my first web server configured, and as per a tutorial I found, I used shorewall. However, it blocks all internet access (even from apt) to my server! Does anyone know a decent firewall program or a good guide on configuring shorewall?
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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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Dec 3, 2010
.i need to configure squid in my company how to install and configure squid in my SUSE server...
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Jan 15, 2011
I setup Mediatomb on another box in my house to connect to with XBMC. XBMC will only connect though if the firewall is off on the local machine. I have both TCP and UCP ports 1900 and 50500 (the port for Mediatomb) enabled on my laptop (local) and the correct ports are open on the remote machine (my wife's vista laptop will connect through XBMC). I can connect to Mediatomb through it's web interface (to set visible folders/files) but not through UPnP (at least not through XBMC)
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May 4, 2011
Since the last Versions of openSUSE 11.3 and now with openSUSE 11.4 with KR46, I've a blocking system sometimes with all memory used (especially swap). KDE Hangs only the mouse works. The Harddisk is 100% used (HDD LED is always on). This blocking is about 5 minutes and 30 minutes. In this time only very minimum work is going on. If I switch with <ctrl>+<shift>+<F2> to the tty, a lock in needs 3 times (the password request is after the time out). top shows only 5% load with "gam_server" (first or secound entry -> most system load).
System information:
AMD 9450e Quad-Core
ATI RS880 Radeon
[code]....
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Nov 16, 2010
I've searched a lot across the web and this forum in particular, but wasn't able to find the solution. The settings of the firewall are too cryptic to me. When the firewall is turned off everything is OK, but it is uncomfortable to turn it on and off every time I watch IPTV.
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Jan 1, 2011
I've got my server mostly configured with Samba file shares - I can access from Linux and OSX computers. I've enabled Samba Clietn and Sambar server in the openSUSE firewall settings (on the server), but Windows 7 can't seem to connect. I've been trying to tweak registry keys in Windows and such, but had no luck. However, when I turned off the firewall on the server, I was instantly able to connect. Is there some other service or port I need to open for Windows 7?
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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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Aug 20, 2010
New SUSE 11.3 install connects to network/internet etc OK with DHCP-assigned IP address. When I switch to static IP, I can no longer ping internal network, or anything else. This works OK with SUSE 11.2 on same hardware and (as far as I can see) same setup. Some diagnostics are shown below.
Firewall
Disabling the firewall makes no difference.
Not using a network manager (can't see how to assign fixed address if I do - all greyed out).
ifup eth0:
eth0 device: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)
SuSEfirewall2: Warning: no default firewall zone defined, assuming 'ext'
(not sure why the warning - eth0 is assigned to external in the firewall setup).
[code]....
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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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Jul 16, 2011
Just wonder is there any command that blocks all connections?
I am aware about RedHat #sudo /sbin/services iptables panic
and wonder is there something with similar effect in opensuse?
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Nov 4, 2010
I have a disturbing problem with my monitor which goes to sleep (or ??) after few minutes if my comp is not used and most of the time I have to restart my comp.I disabled everything in Powersave , but nothing. I did have that problem in previous versions of SUSE, but somehow, I solved that. I cant remember what I did then.
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Mar 25, 2010
I'm trying to put / get files a machine running a tftp server but with no success .The client machine is behind a firewall and this is cause of the problem as when the firewall is disabled I can transfer files.I've tried to add this rule but the firewall still blocks the transfer.
Code:
uncle@ubuntu:/test-$ sudo ufw allow proto udp from 192.168.0.99 port 69
Rule added[code]......
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Feb 24, 2011
I Installed a game server on my ubuntu desktop which is on port 7777. I can join the gameserver without any problems on my local network but when I'm trying to join using my external IP address its not working.
This is what I did:I Forwarded my port inside my router but it still didn't work.
I Removed UFW from my ubuntu machine
I Tried portforwarding with an other machine (iMac) and it's working there
Is there any Security on Ubuntu Desktop that's blocking my gameserver
I Got 2 Network cards in my Ubuntu PC
1. Is A Ethernet card that I use to connect my iMac to the Ubuntu PC (Internet Sharing on my iMac) For fast file transfers.
2. Is A WLAN card that I use to connect my Ubuntu PC to our network.
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Apr 7, 2011
I want some advice for making my system more secure. I want deactivate any network connection that is unnecessary. Only my browser and the update ability of zypper should have access to the internet. On windows there are personal firewalls.
How can I block internetaccess for all other programmes on openSUSE?
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Jul 26, 2010
Samba is working correctly if Susefirewall2 is off. I have added Samba client and Samba Services for extern access but samba is not working when firewall is now on. Which services should I also add ?
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Mar 17, 2010
I have set up nagios on Suse 11.2 and it is working fine on the localhost. I can access localhost/nagios, <ipaddress>/nagios in the browser and it loads up the nagios webinterface. If I try on a computer on the network with <ipaddress>/nagios the request times out. I have tested that I can ping to and from both machines (nagios machine and the machine I am trying to access the interface from).Some detailsNagios is running in a hyper-v VM. I installed it through yast2. Communication is run via a switch and sonicwall firewall but firewall has allow all within the network.I have a feeling it's some apache2 setting that I haven't configured or something blocking port 80.
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Sep 8, 2010
I'm new to SUSE. I had some virus issues with Windows Vista and decided to change my OS.
I have the modem set up and still can't get the internet to come up. I get the mozilla blank webpage, but I am connected to the internet server. What can I do to get full internet access if everything seems to be working they way it should except for the blank webpage? I know I must be missing something but what?
Also, how do I open Yast to use it? I think I opened it by accident and got some things done
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Sep 3, 2010
Since two week the knetworkmanager needs 3 minutes after login to start and connect. On an other computer (x86) it works fine. What could be the reason for this? I use opensuse 11.3 x64 and yes i need the network manager. Ifup isn't practicable for me.I have read in some thread to start the networkmanager at boot time and as root, but i don't think this is necessary.
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Apr 1, 2011
When downloading a torrent after a few minutes my connection speed stops. Browser also. Same problem with Ktorrent and Deluge. The only way to solve the problem is to reconnect to my WLAN. I use a TP Link WR841N wireless router and a Toshiba satellite pro. The same setup is OK with windows and ubuntu 11.04 alpha3.
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May 25, 2011
i am using mobile broadband to connect with network after i connecting mb.it drops it's connection for every 10 minutes.i need to restart to reconnect it.it is happening in kde.
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Sep 13, 2010
i just installed open suse 11.3 after using linux mint 7(based on ubuntu 9.04).i am currently using two internet connections at home, the first is a vodafone mobile modem, which is workind excellent, and the other is a LAN network, that on windows uses a *.exe program to run. i managed to make all the IP, NETMASK, DNS settings and the internet connected, but without the .exe program it just disconnects after 10 minutes.this is the same thing that happens with the connections on windows if i start the computer and not run the "net.exe" program, but if that program is running the internet connections works just fine. i tried using wine to run net.exe, but it just gives an error message.
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Mar 29, 2010
I am trying to add a custom allow rule in the firewall for a range of IPs from 74.201.102.0 - 74.201.103.255, what exactly am I supposed to enter in the source box? I believe I have to add two separate rules for 102 and 103, and I put /24 at the end of both, is this correct to get the whole range of IPs?
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May 25, 2011
1. Under openSUSE 11.2, I allowed printer sharing through CUPS by setting the Firewall to Allow Services of CUPS in the External Zone section. I don't see the CUPS option in the Allow Services of the Firewall under 11.4, any zone. Is my system missing something?2. If I turn off the Firewall, the client computer can see the printers, even get the broadcasted names. If I put port 631 in TCP of the Advanced setting of the External Zone, the client computer can see the printer too, but I know I read somewhere that putting 631 in the External Zone is basically allowing printer requests from the entire internet.
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Apr 12, 2009
Have homebrewed machine, was running Fedora 8. Installed Fedora 10.Firestarter firewall manager keeps crashing after about 5 minutes. Restarts, runs for a while, then crashes.Thought it might be an IPTABLES turf war with the native Fedora 10 gui firewall manager, so disabled that at System > Admin > Firewall. Also disabled SElinux. Still have problems.Firestarter firewall seems to work OK, just the gui Firestarter monitor/manager.If anyone has ideas as to cause, I'll take a clue.I could use Firestarter to generate the IPTABLES by ..manually editing the /etc/firestarter/inbound|outbound/allow-.. files and then../etc/init.d/firestarter restartBut I find the events log useful to look at. Anyone know where the events log file is kept in the file system?
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Mar 29, 2010
switched recently to 11.2 and it works fine for me as workstation I want to set up a router separating a part of the network and also acting as a firewall/proxy... Configured 2 Ethernet Interfaces, checked Ip forwarding in Yast but it does not forward the packets from the "internal" to the "external" network. Hovewer after I set up my router as default for machines on internal network I can ping the external interface but no adress on external network (particularly the one of the default router) !!! From the router I can reach both networks and the net via default gateway on external. Tried to:
a) switch firewall completely off
b) iptables -P FORWARD ACCEPT
c) masquarading internal adresses to the external network
my interfaces configuration looks like:
eth0 Link encap:Ethernet HWaddr 00:13:D4:E3:A2:7B
inet addr:192.168.1.34 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::213:d4ff:fee3:a27b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code].....
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May 19, 2010
We have reason to ask this of you following some strange firewall behaviour - But don't panic If you use openSUSE 11.2 and you think: Your Firewall should be running You are not sure but think it should be check and report back here.
This is how to check:
Go to Yast > Security and Users > Firewall
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May 27, 2010
I did a shields up test and it told me that 1056 ports were stealth but that my pc responded to ping and was visible on the net. How do i fix this?
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