General :: Disable Internet For Particular IP's Only?
Jun 10, 2011
I am using cent OS 5 as a proxy server. Internet is working fine on all users computers.I want to disable internet only two users in the network.Is there any way in squid that all the users can entertain internet expect two users.
Is there any way to temporarily "switch off (and back on)" the internet connection on a system (that runs linux)? The following methods are not allowed:Turning off the router. That would lead to a lot of angry young individuals. This method must be particular to my workstation.Use root privileges (coz I do not have them). Yank the ethernet cable from the system.Why: Sometimes the internet proves to be a distraction.I am using the following system: Fedora release 11 (Leonidas), linux kernel 2.6.30 and GNOME 2.26.3
I have Ubuntu 10.04 with Gnome. Whenever I put in a blank CD/DVD an icon on the desktop appears named "Blank CD/DVD" and a window appears asking me what I want to do with it. How do I disable the window and the icon from the desktop?
I have to always log into my keyring. Unlock Login Keyring comes up when bring up the computer. The unlock login Keyring does not get unlocked when I log in. How can I get the login process to fully log on when I am not around? When I run vista (windows) I never have to login to a keyring to give a password to get passed the Internet process. I have to always do this with Ubuntu 10.04.
I have searched for hours and have found nothing that works. Its just amazing that I have not destroyed my laptop yet. What I want to do is keep my child off the net under his user account. I have Karmic installed currently. I have tried adding an iptables rule: sudo iptables -A OUTPUT -p tcp -o eth0 -m owner --uid-owner test -j REJECT
That does not work. So then I tried to disable the network card for just one account... no go.I can only stop access totally for both users which doesn't work for me very well. No method gives me what I need. I want a way so I can login and use the computer normally AND an account he can login to and use but with no web.
I have two connections for my PC, my Ethernet which is on the corporate network and my smart phone on 'usb0'. Both have full internet access.I want to stop my PC from connecting to the internet over the Eth0 while still connecting to internal servers then just have internet over usb0.If I go to the settings of 'Auth Ethernet' in the tray area, under IPv4 there is the routings section - I've tried enabling "use this connection only for resources on its network" but it doesnt work.
I have a Lucid Ubuntu installed on my home PC with two user accounts, AmHero and simple. I would like to have all internet access disabled when my kids login with the 'simple' userid. And yes, internet should work when I login using AmHero. I tried this:
[URL]
..but this does not work and gives some errors on the terminal.
I can paste the errors, though I am not sure this will even work as I found this in an old post.
I suffer enormously from net addiction (as well as gaming addiction and related behavioural maladies).I've had revelatory success in controlling my time online-and, in general, in front of a screen with unproductive applications- by locking my monitor's power cord into an Ems PowerCop (the key to which I keep at work). Writing and journaling, I do on an AlphaSmart Neo. However, I could really use a tool to allow me to edit and typeset my writing (and only those tasks).I'm considering buying an ultra-low cost net-book.I want a netbook because it's the cheapest way to keep the display power fully dependent and integrated with the machine---I can't have something that will allow a simple means of working around the Ems PowerCop. Also, since it lacks an optical disk drive (and since I'll be keeping my usb drives at work) there will not be an easy way to reinstall the operating system. However, before I buy anything, I need to know that, after installing/configuring all of my preferred settings for vim and La/Xetex, there is a way that I can cripple the netbook and all of its applications so that no internet access is possible.
The Cherrypal Africa can come with either Ubuntu, Debian, or its own Linux blend, Green Maraschino. If it ends up being either Ubuntu or Debian, what can I do that will irreversibly (at least, from a software level---a hardware level would probably require damaging the usb ports, which I don't want to do) disable its ability to try to communicate with the internet (including the software repositories)? I'm hoping for a particular system file that I can delete rather than the addition of a command somewhere that would be easy for me to undo when I'm bored out of my mind and want to see what Wikipedia has to say about the glycemic index.
My company has an RHEL 5.0 server on which we have been instructed by outside auditors to disable or uninstall NIS. I'm not finding a method for doing so in my on-line searches.
I would like to know how would i disable service which helps mounting of removable devices automatically?I dont want to disable mounting but i would like to disable automatic mounting of devices.I would like to do this as security major on one of our production server.
I've setup a network within my lab and only gave access to local machines (Redhat 5,and a windows server 2000) ,First i have succeded to enable iptables,logwatch,nfs,logwatch,portmap,tcpwrapper.
this is my hosts.allow file: code...
Now i want to use ssh from a remote machine, i have disabled iptables,nfs,logwatch,portmap
what should i do to be able to access my network from my laptop which is not connected to my network?
I have modified /etc/inittab file for changing default runlevel from 5 to 3 .Now i can boot in terminal mode .However if i issue init 5 i get a X window.How would i disable loading X? do i need to disable some services?P.S.What is Xvfb? How would i disable it?My Distribution Details.
Code: # lsb_release -a LSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
I'm currently pursuing a CCNA certification. I need to use a so called "Eagle Server" to do my lab exercises. I have the Linux Live CD (FEDORA CORE 3 KERNEL 2.6.12) and I have installed it on a laptop that I have (TOSHIBA EQUIUM M50-164, PSM57E). This laptop had Windows XP installed, so I created a 4GB FAT partition and booted with the Live CD.I need the CD in the tray every time I want to run Linux. Without the CD, it boots to Windows XP. Also, according to Eagle Server documentation, any modification to the server is available even after reboot. Well, that is not happening to me. Does someone have a clue why the server doesn't save the modifications? Is it because I need the Live CD to boot, even after I have installed on a FAT partition?
Eagle server supports only 1 network interface card, eth0. When I first run the server it showed me that the hardware mapped to eth0 was my wireless adapter. There is no option to disable it in my BIOS, so I just removed the hardware myself. After rebooting it show eth1394 on eth0. I presume that is the FireWire Adapter.What can I do so that eth0 is mapped to my LAN adapter (Marvell Yukon 88E8036 PCI-E Fast Ethernet)?Is there a way do disable FireWire?Please remember that due to 1st problem above, any changes to the server are not available after reboot So the main problem is that I can't ping from Eagle Server to the router and vice-versa
I have a linux box (fedora) with two ethernet cards eth1 and eth2. On eth1 I successfully configured a PPPOE internet connection. Such that from the server I can browse the internet. On eth2 I wired it to a wireless router essentially to provide the wireless cloud. On eth2 I also configured dhcp, such that the Linux box is both PPPOE and DHCP server.However my clients on the LAN cannot access the Internet.
On passing the routing command I get Destination Gateway Iface 196.44.x.y 0.0.0.0 ppp0 192.168.1.0 0.0.0.0 eth2 (my subnet) 0.0.0.0 0.0.0.0 ppp0.
The router (functioning as a wireless access point mainly) has a fixed IP address of 192.168.1.2 and eth2 has IP address 192.168.1.1. The dhcp file running on Linux has been set with option router (Gateway) 192.168.1.1. I cannot figure out how to correctly set the routing table such that my clients on wireless can access the internet cloud. I googled and googled but no solid solution. Any suggestions?
I need to disable my encrypted home directory because it prevents me from logging in with my fingerprint scanner when I first boot up. I'm running kubuntu 9.10.How do I do this?Also, how would I revert back to it being encrypted if I decide to not use the fingerprint scanner for initial log in anymore?
I need to disable the automatic power-off on shutdown so I can just withdraw the power myself. The reason for this is that the machine should power on itself when it gets power (which is accomplished by Resume on Power Failure in BIOS). I learned that I can turn off ACPI and APM by using the corresponding boot command options. Does this have any negative effect other than disabling standby etc.? Is there another easy to accomplish solution for this problem (maybe using linux from a readonly partition and make sure all programs are closed before I withdraw the power)?
I recently bought a 16GB Super Talent pen drive that seems to work well for running the Ubuntu Live "CD" in persistent mode (see this for how I installed it). One slightly annoying thing, however, is that this pen drive has a bright red light on it that stays on when it's idle.
Is there a way to make the light stay off at least when the pen drive is not performing IO? I'm not even sure it's possible to do. If there is (in Linux), I'm guessing it boils down to some ioctl invoked by some utility. Otherwise, I imagine it would involve hacking the firmware or simply opening up the pen drive and removing the LED.Then again, I guess it keeps the LED on to indicate that the drive should not be removed.
Is it possible to disable logging in locally to a CentOS installation but still retain the ability to login via SSH? I will be installing a CentOS server in a remote site and don't want anyone trying to log into it
I'm using Kubuntu 10.10 and since I don't need Bluetooth I've disable startup for BlueDevil. Can I also disable startup for obexftp, or is it require by other processes?
I'm having issues with the Linux rpath functionality. It seems the rpath provides the ability for a library to embed the location of other dependent libries within the shared object file.
I'm trying to disable this functionality. At my company we install libraries on NFS mounts, so they can be available on any machine. The problem I have is that my application runs on a few hundred machines. When my application is running, the NFS server can be overloaded with thousands of processes picking up library files. To get around this, I have installed the libraries locally, but I'm still picking up the shared object from NFS.
From my research, it seem the protocol for Linux is to first check the LD_LIBRARY_PATH, then check the rpath if it cannot find the library. However, on my system, it seems to do the opposite, and is only going to LD_LIBRARY_PATH if rpath fails.
Is there anyway to disable the rpath completely, and only use LD_LIBRARY_PATH? Keep in mind, I'm looking for a runtime solution. It's not feasible for me to re-link all the libraries with disable rpath flag.
my son borrowed my laptop, and when I got it back it was using the illume desktop. he doesn't know what he did. how can I get back the normal e17 desktop?
Is there any way to disable VGA output port in linux. I mean when I plug monitor to VGA port nothing displayed exactly like those times that the system is turned off (disabling all output signal to vga port)
