Fedora :: Can Make Libvirtd Stop Tempering With Iptables
May 6, 2010
I'm using fedora12 with KVM. I'm also using iptables for filtering and nat. Problem is when I start libvirtd, it overwrites my current iptables and iptables config file (/etc/sysconfig/iptables).
Ok it leaves an old copy in /etc/sysconfig/iptables.old, but the main problem is that it removes also all my custom settings from filter and my full nat. I would like the keep control on my iptables and like to manage them on my own. But I cant find an option in the libvirtd config files and/or the libvirtd startup scripts to prevent libvirt from changing my iptables. how I can make libvirtd stop tempering with my iptables?
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Jul 6, 2011
I have a tested and working ssh connection with my local network server. On Ubuntu it was simple to just add an ssh connection to Virtual Machine Manager to connect to 'hippopatamous.local' (yes thats the name of my server :P) but now that I'm in arch its different. I connect to the server using just 'hippopatamous' and on top of that its like the Virtual machine manager can't connect.
All it says is to make sure that libvirtd is running. I ssh-ed in to the server and make sure it was running. I even ran it on my local computer (this was before I remembered/realized this would be a server type daemon so running it locally wouldn't do anything)
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Jul 1, 2010
I'm not sure if this helps and I'm not sure how to tell anyone what I found, but was a problem in Fedora 10 and 11 were VM's running in KVM would lockup due to (disk or network) IO activity. The problem silently vanished as soon as I installed Fedora 12 as my VM. I upgraded my VM to Fedora 13 and the problem re-surfaced. Oddly, no other distributions seem to have this problem any more judging from Google. My configuration:Host = x86_64, 4 cores, Fedora 11VM = i686, 2 virtual cores, Fedora 10, 11, or 13 (Fedora 12 works)What worked for me was using only one core in my VM. Things have been stable for a few days now
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May 22, 2010
I have a fedora 13 rc3. The problem is that boot the system stops here Starting libvirtd daemon
Prior to that, stop at this point registering binary handler for windows application. I got up to enter the
tty2
to remove Wine
This time to stop here Starting libvirtd daemon
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Jan 7, 2011
Unfortunately accidentaly I disconnected my usb drive my computer and my VMs run from so I just rebooted for a quick fix Now I can't open virt-manager locally and the VM's can't get network connections I see this in the logs after the last two reboots
Code:
grep lxc /var/log/messages |tail -n 2
Jan 7 00:45:04 F820 libvirtd: 00:45:04.524: warning : lxcStartup:1895 : Unable to create cgroup for driver: No such device or address
Jan 7 11:52:53 F820 libvirtd: 11:52:53.325: warning : lxcStartup:1895 : Unable to create cgroup for driver: No such device or address
[code]...
I tried restarting libvirtd after with no love so I rebooted and cgroup was gone this was a clean install of F14, after this started I brought the system current, I can provide the packages installed but they errors didnt change
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Apr 16, 2011
Have previously moved my ssh server from 22 to 4455 just by moving the port in sshd_config. This is done to minimize the log entries resulting from brute force attacks.However, it seems like Zimbra and other local services expect to find the ssh service locally available on port 22, so I figured it's better to move the port in the firewall so that it remains configured on port 22 in sshd_config, and instead use iptables with a nat/port rewrite to move 4455 incoming to 22 locally.
Isolated this works as long as I also keep allowing port 22, but the moment I close port 22, port 4455 is also dead, which sort of defies the purpose
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Mar 3, 2009
I seem to be having an issue with iptables, every so often the server starts loosing packets and then goes off completley, if I manage to login to ssh I can stop iptables and this resolves the problem, however it keeps doing this. Is it possible to stop anything being added to iptables?
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Jan 24, 2009
I am following the instructions on Section 8.1.* Device Driver ConceptsHere I was able to proceed till section 8.1.4.After making the hello.c file,the make file and patching the Kconfig as mentioned,I tried to run the $ make ARCH=ARM CROSS_COMPILE=xscale_be- gconfig This gave error as:make: *** No rule to make target `gconfig'. Stop.I am not sure if my kernel is correctly compliled,but I was able to complie and build the kernel for arm before by cloning the kernel and building from the following link without any error. https://omapzoom.org/gf/project/omap...ux+OMAP+Kernel
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Oct 25, 2010
Here is a glimpse of my IPTABLES
http://pastebin.com/WvHAC46A
I see in the column of sources the addresses being resolved to domain names is there a way I can stop this?
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Aug 5, 2010
I recently switched over to Fedora 13 but I'm having a bit of trouble. I've tried writing simple programs in Emacs and Eclipse but neither will compile. It always gives the error, "make: *** No targets specified and no makefile found. Stop."
I've looked around at a couple of forums, but people with the same issue can't install software, but I can. I got Fedora from the Fedora website so I know its complete, but I have the sneaking suspicion that I'm just missing a file or something.
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Nov 26, 2010
I am unable to restore my iptables from iptables-save after upgrading Fedora. I cannot get iptables-restore to work, and I have resorted to entering rules manually using the GUI.
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Jul 17, 2010
IPtables creates an error during startup as well as when I try to restart it: Here's the output of:
[Code]....
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Jan 4, 2011
i'm having some issues trying to get the oSUSE 11.3 x64 hypervisor working, these are the errors im getting when i've opened the virtual machine manager, and clicked on one of the 2 options.
verify that 'libvirtd' daemon has been started:
Unable to open connection to hypervisor URI 'qemu:///system':
unable to connect to '/var/run/libvirt/libvirt-sock', libvirtd may need to be started: No such file or directory
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/connection.py", line 971, in _try_open
None], flags)
[Code].....
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Apr 23, 2010
I set up a squid transparent proxy and I have a problem with an iptable rules. I have a rule to redirect all request to port 80 to go on port 3128. To do so, I'm using this iptables command :
Code:
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3128
This command is working like a charm. The only problem is, for some unknown reasons, this rule will be dropped at some point. I did not manage to identify what is causing this to happen. It occurs during night, but I have nothing about that in my log files. messages / firewall / ...) The only way I managed to reproduce this 'dropping' is this one: I type the command like as root. The command is effective and working fine. I open yast, I go to the firewall module, the I do a simple "save changes and restart firewall" (without changing anything). As soon as this process is finished, the iptables rule is gone.
-How can I make this rule permanent ?
-Is there a place where I can launch a script executing this rule, after the yast firewall module is 'touched' or something ?
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Aug 25, 2010
when I use LOG action in some chane of iptables rules, I get the output both in STDOUT or STDERR of the xm console and in /var/log/messages.
Is there way to make iptables to write only to log without writing to console?
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Sep 16, 2010
It complains that it can't connect to localhost because probably libvirtd is not running. Well it is running, so please share your wisdom with me. Here is error message:
[Code]....
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Jun 18, 2011
I am going to start studying IPTABLES for Linux Firewall. Can any one suggest me the best Book for IPTABLES contains everything of iptables.
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Mar 5, 2011
I am trying to make start an iptables.cf script on my server.
I have copied it into /etc/init.d/
And try to make it load with /etc/init.d/iptables.cf start
Then "not permission" (I was the root then).
So, sudo /etc/init.d/iptables.cf start
Then, "command not found".
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Apr 26, 2010
Got a used Lenovo Thinkpad r61i and put Ubuntu 9.10 on it. Every time I turn it on it prompts me to give it a password for someone else's internet. This a password I do not know and I use an ethernet cable for internet so it's really annoying. Any way to make it stop?
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Jul 26, 2011
I just reinstalled Ubuntu at least twice for this problem: Minidlna starts fine for a few minutes, I can see it on the network with my television, windows and even my phone. However, after a few minutes (say one hour), it stops being there. The process keeps running, and is kinda responsive to rescans and restarts. However it becomes unusable after a few minutes. The last reinstall was pretty basic: Installed Ubuntu 9.04, upgraded to 10.04 (servers), installed minidlna, wait and... bam! So there were no conflicts in all that, so what could make minidlna stop being responsive?
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Aug 2, 2010
make /usr/bin/make all-am
make: Nothing to be done for `/usr/bin/make'.
make: *** No rule to make target `all-am'. Stop.
whats wrong with this???
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Aug 29, 2011
I am using a Linux machine with a KVM switch at work, and I commonly use emacs while switching between that machine and my other machine. I typically use the keyboard shortcut to swap between machines on the KVM, which is the key sequence: Scroll Lock, Scroll Lock, Up or Down. If I have an emacs window on top on Linux and hit these buttons, it will trap the Scroll Lock key presses and trigger a system beep from the CPU speaker. The KVM still switches, but on occasion, after the switch, it will register Scroll Lock as being stuck pressed, and so I'll be treated to an earful of system beeping. I have to switch back to the computer to get it to stop.Is there something I can put in the .emacs file that will prevent the program from beeping when I hit Scroll Lock with the window on top?
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Apr 28, 2011
I have a windows computer that has a virus on it. This computer isn't worth much so I don't want to get a virus program to clear it. I know the virus probably won't be able to crash the linux OS, but will it be able to transfer itself to flash drives if I am running linux?
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Jun 14, 2010
i have the following ip assignments
fedora (iptables)
eth0 -private :192.168.1.1
eth1 -public : 186.117.50.6
squid proxy
192.168.1.10:3128
my clients range
192.168.2.0/24
how can i make my clients to browse internet only from proxy server my network is NAT 'ed. Please specify a iptable rule to allow internet access for my clients to browse ONLY if they come through proxy server.
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Oct 22, 2010
It's my first Linux. (and the only one I could install. So I won't(can't) try with another version.)
I got these results.
And, I'm following this thread - Realtek RTL8191/8192SE WiFi Drivers.
I did : sudo zypper install automake make linux-kernel-headers kernel-desktop-devel kernel-syms // and now I have all the highest versions.
But I'm still getting this message..
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Feb 12, 2010
Two weeks ago my computer started freezing on start up when plugged in. It was suggested to upgrade the APM. What is this and is it not updated through the package update? If not how do I upgrade it?
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Sep 23, 2010
I am compiling libmp3lame from svn and I got following error No rule to make target `basic.html', needed by `all-am'. Stop. which package am I missing.....??
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Oct 18, 2010
Why, after a successful (I thought) dual boot installation w/ a side-by-side lynx and meerkat install and XP does my system refuse to boot? It just gets to the Dell screen, giving boot options (none of which are making any difference) and keeps looping it. Last night, after re-installing the grub (lost after the XP install) everything was working fine. I powered down and this morning tried to restart and...this. I really don't want to have to reinstall everything and reconfigure and reinstall apps--what can I do? And more importantly, WTF did this happen to begin with?
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Dec 5, 2010
I needed an open source alternative to after effects so i went for jahshaka but after following the instructions, i type in 'make' and hit return and it says "make: *** No targets specified and no makefile found. Stop." am i missing something obvious? i have looked around the web, but no-one has this problem that i can find i am using ubuntu 10.04.
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Jan 22, 2011
I have Ubuntu 10.04.1 32bit installed on my flash drive so wherever I go I can have my own mini personal computer, but one problem I'm having is every computer it is run on the next time it's rebooted to the OS on the hard drive it has UTC time instead of the actual time for the timezone you're in that Windows uses. So is their a way I can make Ubuntu not automatically change the clock to what it wants?
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