Fedora Networking :: How To Prevent Arpwatch From Reporting Changes On 0.0.0.0
Feb 2, 2009
I am running a sever for a local community. There is arpwatch service running and monitoring for new network cards. The problem is that each day I keep getting lots of 'flip flop' reports:
Code:
hostname: <unknown>
ip address: 0.0.0.0
ethernet address: 0:13:e8:43:b1:e7
[code]....
I know where they come from: clients are obtaining ip addresses by DHCP, and initially are sending DHCP requests from 0.0.0.0. I am running arpwatch with a specific option to NOT report such things, but it looks like it is ignored...
Code:
arpwatch -u arpwatch -e admin -N -s 'root (Arpwatch)' -i br0 -n 0.0.0.0/32
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Mar 6, 2010
Arpwatch is failing to start at boot time. I got this message:
arpwatch: bad interface eth0: eth0: no ipv4 address assigned
Once I login into my account, I can (as root) run the arpwatch demon, but it is suppose to run at boot time. After I installed aprwatch, it was working correctly. I do not have an idea of what happens or since when the problem start to happen. I just realize, after a while , that arpwatch was not running. I am running Fedora 12 - 2.6.32.9-67.fc12
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Apr 29, 2009
I'll spare the details, but is there a way to use iptables to do the following:
Allow all port 80 traffic to work for squid, yum ,etc. but prevent firefox from talking to port 80?
(That way if they don't use squid proxy, it won't work)
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Jul 6, 2009
I have the following network/server configuration:
[Code]....
How do I prevent eth1 from being able to overwrite the default gateway that eth0 has already set?!? I read that one can create route-* files in the /etc/sysconfig/network-scripts/ directory to setup static default routes.But those seems to require one to know the IP address of the gateway, but in my case the ISP's gateway is served via DHCP and so it could vary from day to day. Here are the contents of some of the relevant files:
[code]...
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Mar 11, 2009
What is a quick and easy way to prevent a Fedora 6 box, from being able to browse the windows network/access windows shares?
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Apr 15, 2011
Today morning I logged on to one of our servers (through ssh -X) to perform a routine maintenance. When I tried to open a GUI application, it failed to connect to the X server of the workstation. Eventually I ended up issuing the command
Code:
df -h /
and shockingly it showed that / is 100% used. I checked / using
Code:
du --max-depth=1 -xh /
to check the sizes of the individual directories, which showed that only about 18% of the / is used and that confused me badly. There was no quick solutions when I googled around; but luckily I found the following link which nicely explained the issue I had:
[URL]
All I did was found out the services responsible for those unreleased files (using lsof +L1) and restarted them. That is it. Now df reports only 18% of the disk is used and all my X things started working again, thanks to Walker.
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Sep 14, 2010
When I install some packages Yum seems to behave correctly until the the very end when it gives the error: xxx-package was supposed to be installed but is not! I am lookng for any advice which might solve the issue. Below is an example of the yum output.
libgcc-
4.4.2-7.fc12.x86_64.rpm | 75 kB 00:00
Running rpm_check_debug
[code]....
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Feb 8, 2010
How do I disable the Automatic Bug Reporting Tool?
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Mar 5, 2010
At every boot I get an automatic bug reporting warning about the kernal. Not sure what is causing this or how to fix it. It is on a Dell d600 laptop.
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Jul 18, 2011
I had Fedora 13 64 bit before which was correctly reporting memory as 4GB. After I wiped off Fedora 13 and did a fresh install of Fedora 15 32 bit, the memory is reported as 3.2 GB in the system Info and also in free -mt command code...
Where is 600MB memory gone missing? I checked the BIOS setting and it correctly says total memory is 4GB.
The hardware is exactly same and I did not change anything.
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Apr 7, 2009
I have a system set up with Fedora 9 - the Fed10 installer choked on an older Intel video chip. I've decided to try updating to 10 in anticipation of further upgrading to 11. Reading this forum and elsewhere convinced me to try preupgrade. I started it and saw Fed10 as an available upgrade path, selected it. At that point, the system appeared to freeze -- the progress bar got about 10% along and everything sat for 10-15minutes. I exited out of preupgrade and tried the rpm path.
That didn't fly either -- I was told that there were no packages marked for upgrade. I read more about preupgrade, including the fact that it might give the appearance of having locked up although it was still working. So I went back to preupgrade. This time, Fed10 didn't show in the selection box. It was, in fact, empty except when I checked the box for beta/unstable and could see Rawhide.
How do I get back to where I was with preupgrade so that I can finish what I started? Alternatively, how can I do a 9 to 10 upgrade from this point (preupgrade grayed out and rpm reporting no packages)? I expect to further upgrade to 11 in a couple of months, so the step to 10 is necessary. I do not have a separate /home partition and I have some very expensive (and difficult to set up) software that insists on sitting in /usr/local, so a full install, though doable, isn't something I want to undertake -- I'd much prefer to do to upgrades from 9.
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Sep 1, 2009
But after it updated and I restarted the service, it's reporting 2.2.0 on any error page. Yet through yum it's reporting 2.2.13-1. Is that normal? I've only ever used 2.2.x, starting with 2.2.6ish.
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Dec 14, 2009
I have been trying to run Yumex under F12, x86_64. It always crashes when it finishes to resolve the repositories and then the Automatic Bug Reporting tool blinks indicating a bug in python 2.6.2-2.fc12. Anyone else has seen the same bug? What have you done to solve it?
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Jul 4, 2011
I have installed fedora13 OS on it recently,earlier it has both windows and linux but now only fedora13. My laptop's harddisk has probably some bad sectors and a software package "Automatic Bug Reporting Tool" has reported kernel crash,gnome-panel crash. I reported them upto some extent but in totality all I can't report. How to deal with it, why is it happening, and will it be harmful for any part like CPU,RAM,HardDisk of my laptop?
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Sep 4, 2010
I know it's very easy to share printers in Ubuntu, just went to System, Administration, Printing, Server Settings, Publish Printers connected to this system. VoiláMy question is:How can I create an access list so only certain IP addresses are allowed to see it?
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Jun 26, 2011
I know I need a better title, but don't have one.
The problem is when watching a video F15 Gnome decides to send me to the unlock screen. Think that's what it's called. So I have to type in my pass.
A little bit later, same thing. So how can I prevent it from happening?
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Oct 27, 2010
I am using ubuntu cli 10.04 for several different computers with different network cards, any time I plug in my persistent usb (ubuntu installed on usb) to computer the network would not work, when I find out what is up I see that it is up on next eth driver, I cant enter up to 50 or 100 or 500 entry there all the time and same thing with wireless since I use radius authentication its even makes it worse.
So to summarize:
sudo vi /etc/network interfaces
auto eth0 ifup dhcp
iface eth0 inet ...
...
...
auto eth100 ifup dhcp
iface eht100 inet ....
How to keep one entry for all those different computers (one for eth0 and one for wlan0)?
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Nov 18, 2010
One of my ubuntu 10.04 boxes starts apache2 server automatically at boot. I know from the output of the command:
Code:
sudo /etc/init.d/apache2 status
I can't remember even setting that up, and I don't think it does so by default, since my other box in fact does not even have apache2 server installed. I can stop the server once I login, but is there a way to stop it from automatically starting the server, or even better, completely uninstall the daemon. I tried
Code:
sudo apt-get remove apache2
but that does not work. I guess the daemon is part of some bigger package.
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Jun 22, 2011
I would like to use my laptop at home, where I don't have internet access (don't ask, long story). My question are two-fold;
** How do I prevent various pieces of software trying to access the net for updates etc. I presume they are likely to hang, lock up, and generally cause trouble.
** Can anyone recommend a working practice for installing updates and/or new software, either from USB or CDROM/DVD? I have good (legitimate!) access to assorted computer facilities at my office. I am using 11.04
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Apr 3, 2011
I have two motherboards, MSI-6702 (64 bit single channel) and MSI-7511 (64 bit dual channel), I have two identical D-Link wireless cards and am running Kubuntu 10.10 on both systems. 7511 recognizes both wireless cards and connects to the Internet.The 6702 shows wireless grayed out on the connections page. The built-in Ethernet card has given out on both. I think I disabled it on the first system to have an Ethernet problem and wonder if I need to do it on the second. I would have tried it already but can' t remember how.
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Jun 11, 2010
Some body is using my domain name [URL] and sending spam emails to users from his server using my domain name. how to prevent this.
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Jun 17, 2011
I searched and only got the screen program, and the drop down menu only shows options from 1 min to 1 hour.
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Jun 17, 2011
I there anyway to prevent Fedora from going to sleep / hibernate.
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Dec 17, 2010
I have a created a wireless connection from the main admin account and checked the box saying "Available to all users", everything is working correctly. I only need to prevent the Desktop Users from switching the connection to another one.
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May 11, 2009
I am new to Fedora 10, and to SELinux too.
I would like to know how can I prevent from users with role user_r to connect to Internet with firefox.
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Jul 12, 2009
I am running a program in gnome-terminal window (using metacity window manager) which will take many hrs to complete.
I was wondering if there is some way to "lock" that window, so that accidental closing of that window is prevented.
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Jul 14, 2009
I am facing a really weird kind of issues where my boss has asked me block everybody from changing their wallpapers and put a default one there.
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Feb 15, 2011
I have a headless server, and I want to prevent GDM 2.30 from starting the graphical login on the console screen. As I use XDMCP, I still need GDM running on the server... With previous versions of GDM, I was doing that through gdmsetup, which ended with these lines in /etc/custom.conf :
Code:
[servers]
0=inactive
but it seems that it's not working anymore with 2.30...
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Mar 5, 2011
Is it possible to prevent my system into going silent mode if someone had pyshical access? Relatives keep coming over and changing the admin password, and im guessing they do it via this way right?
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Jun 24, 2011
I have searched far and wide but could not seem to find a way to prevent GDM from hiding the password field. I am the only user of my laptop, to login I first need to click the login name to show the password field and then I can enter the password. I would like to have the password field always visible and have focus.
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