Ubuntu Networking :: Prevent Various Pieces Of Software Trying To Access The Net For Updates?
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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Feb 22, 2010
I've dled some CDs. Each one is a single FLAC wich i can play, But surely i should be able to access individual pieces recorded on the CDs?.
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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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Mar 5, 2010
I just installed 9.10 on a separate drive in my system. The update manager told me many updates were required, so I went ahead and installed. It needed to restart, but the system just got stuck after the default GRUB entry started loading.Is there a way to undo the updates? I can't boot into 9.10 any more so I'm not sure how this would work.
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Dec 4, 2010
i dont want to install some updates via update manager..so i untick them while updating..but when update manager checks for updates again..dey show up again..i m tired to unticking them again and again everytym. what should i do to prevent some updates from showing up again and again in update manager ?
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Dec 2, 2010
if i run chromium with --enable-gpu-rendering flag chromium's display looks like it's shattered into thousands of pieces and I can't understand a thing. This doesn't happens if I have a previous instance of chromium opened in the usual way, without any flag. In this case if I open another chromium window with the --enable-gpu-rendering flag it's display looks ok, but I can't figure out what's the problem and how could this be fixed if there's solution for it of course.
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Jan 20, 2011
How can I prevent a certain application from having access to ALSA. It keeps stealing my audio.
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Mar 23, 2009
I have a users, that log in from a terminal. They should not have any shell access, so currently their login script, at the end, starts the program that they use, and after that program ends, the login script moves on to log them back out. The problem is, they could press ctrl+c, while the login script is running, and it quits the login script and spits them out at a shell prompt. -- Is there any way I can prevent this?
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Mar 19, 2009
I'm doing a research to protect my pc from physical access. What I'm facing here is that my company created a program for fedora 8 and plans to sell the unit away. We created a function where you can configure the program using any web browser from a network so we do not want anybody to have access to the fedora except for out personnel.
Based on my research, I've found [URL] this guide to protect people from accessing grub and single user. I am currently researching on preventing others to clone the harddisk. I would like to know if there are any other methods to prevent people from unauthorized access to fedora.
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Feb 19, 2011
Launching OpenOffice takes several minutes because it's trying to connect to the Internet. The problem gets worse in a dial-up connection. Turning off the Internet takes less than a second to start. How can I prevent OpenOffice from trying to access the Internet when it starts?
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Jan 10, 2010
I'm using some software that using mount point such as truecrypt. I also mount shared folder on other machine (fileserver) and publish it using ftp. The problem is when the truecrypt volume dismounted or the shared folder mount point loosing connection to the fileserver, user can write to the mount point without knowing that they actually not writing to the truecrypt volume or to the shared folder.
My question is, when sometime the server reboot and truecrypt volume is not mounted yet, how to prevent write to the mount point? I dont run truecrypt mount automatically for security reason.Some question for shared folder, if fileserver restart and the shared folder mount point got disconnected, how to prevent write to the mount point?
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Jan 25, 2011
I'm working on creating a bootable Linux CD to distribute a sandbox environment to customers that will work on multiple PCs.One requirement of this environment is that we do not want the user to have any access to the underlying hard drives in the computer to prevent any accidental and/or malicious damage. I can prevent the disks from automounting with a few udev custom rules, but is there any way to prevent/block the user from manually mounting the hard drives after boot up.
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Oct 18, 2010
I was wondering if there's any resource that explains how to use w3m. I checked the man page but this just lists the startup options. I also did some google searches but couldn't find anything useful. I was able to find bits and pieces of info on different sites (e.g. how to enter a URL, how to go back a page, etc.) but there was no site that had all this sort of information in one place.
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Dec 19, 2010
I need to be able to compress into multiple pieces while still being able to be read by someone else who has windows, I can only download unrar but not rar. Why is this?
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Apr 27, 2010
I need files to be <= 5GB to put on S3. Right now I have an ugly tar / gzip / cut before upload, then cat / zcat / tar on download, but it's really ugly - and nearly every archiver should support archive splitting right? What's the best way?
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Oct 16, 2009
I am wondering if there is some command (sed ?) that could do divide a big text file into small pieces, each of which contains 10 lines
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Mar 21, 2009
I have written a CGI script which prints 2 tags at either end of the screen (actually they are the "Previous page" and "Next page" links for either end of the screen). The left one is under a <DIV ALIGN="LEFT"></DIV> and the right one <DIV ALIGN="RIGHT"></DIV>. Unfortunately they don't line up on screen - the left "Previous page" text is one line higher than the "Next page" link - I tried putting in a <NOBR> tag between them but it didn't work - can someone tell me what to do?
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Nov 3, 2010
Just did a fresh install of karmic due to problems with 10.04 and then 10.10. The new install sees the net ok, firefox and thunderbird work perfectly. however, updates not working. When i do sudo apt-get update it just hangs. When i open the ubuntu software center, nothing is available. Help urgently required, as I can't operate without a number of software packages I now cannot install
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Mar 19, 2011
We are using xubuntu in a vpn environment where we dont have access to ubuntu/xubuntu update server. Is there anyway we can download updates from an outside source and install them via pendrive or other device.
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Feb 14, 2010
openSUSE 11.2 - 2.6.31.12-0.1Possibly related to kernel update, but can't be certain.My USB memory devices show up everywhere as expected, except in any file manager, as root or otherwise.How do I restore access through file manager?
p35s3g: # fdisk -l
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
[code]...
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Sep 22, 2010
I have freshly installed OpenSuse 11.3 and it's ok, but online updates is very slow and keeps failing.
Here is my hw spec:
lspci:
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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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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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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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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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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 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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Apr 9, 2010
I have 3 Dell Precision M4400 machines. After getting updates yesterday or today, I get random network dropouts like crazy, on wired or wireless. On one machine I was able to turn off ipv6 in grub and reboot, and it works now. However on the other 2 machines, still have the same problems. All 3 are running 9.10 64 bit. Is there a way I can back out the updates so the network works again? Anyone else see this behavior after updates today?
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