Ubuntu Networking :: Disable 'internet' For One User
May 27, 2010
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.
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Jan 17, 2011
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.
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Oct 27, 2009
I windows xp. I install vmware on it and install centos 5. Now how to use internet in centos 5 using user name and password. Our internet provider give us user name and password.
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Jan 10, 2010
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.
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Oct 15, 2010
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.
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Jul 19, 2010
writing a script that will enable/disable internet connection on the one of the machines in the network(be it a DNS clearing or something else).
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Feb 26, 2010
i have installed ubuntu 9.10-->working well so far..but not able to connect to the internet...i have ADSL2+Router modem. when i connect it's wire--> it shows auto eth0 connected-->i donno what it means since i cant surf internet...i also tried various tutorials of ubuntu on connection but i cant find networking in system administration...i mean we have on ubuntu 9.10-->system-->administration-->network tools...where to go from there i dont know....i know i am in mess.. internet works well on my other computer with windows though....ask if you need more info.
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Nov 9, 2010
How do I create a user account without Internet access?
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Nov 17, 2010
I would like to set up a user account with no network access. Reason is that sometimes my little daughter plays with the computer (for example watching movies on dvd's) and I want to prevent internet access in case she plays unattended. Is there a simple way to do that? I am using ubuntu 10.04.
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Oct 5, 2010
How do I disable and change the user password using SSH on a Linux
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Sep 1, 2011
My laptop was working fine on wireless till the userinterface changed and it defaulted to ethernet and now it won't let me go back on wireless How do i disable ethernet?
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Jun 22, 2009
I am currently working on a project related to packet sniffing which has been implemented using the concept of raw sockets. I am using C language.I am able to decode the following details from the packets received from a local network,like:
source and Destination Mac Address
source and Destination IP Address
source and Destination port no
But I am having trouble in decoding the domain name when an user in the local network is logging onto internet.For eg. if a user in the local network is trying to log on to web using his browser say if he has logged on to url then from the packet I need to get the following details
source Mac Address from which user had logged on
source IP Address from which user had logged on
domain name
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Jul 30, 2010
How to disable 'sudo' for all or a particular user and allow only 'su'?
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Jul 4, 2011
When I boot from a live USB, it automatically logs in as the live user. I don't want that. I want to log in as a real user, without having to log out of the live user session first.I looked at all the options under system > administration > users&groups. Nothing seems applicable.PS, I did already create the real user and it's working fine. I just have to log out before I can log in as the right user.
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Jan 9, 2010
is there any possible way to hide currently running processes from an user? This means I do not want him to know about what programs/processes does any other user but him run. In short words if that user runs 'ps -aux' he should get only his processes.
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Mar 12, 2010
for security reasons,I want to disable shutdown for normal user, but the post here does not help me. It is because when I open the /etc/X11/gdm/gdm.conf I just saw a blank file. I use the 9.10 version.
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Apr 5, 2011
I'm trying to disable multiple logins for a single user on Ubuntu 10.10 but I haven't been able to find a way to do this on this version
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Aug 10, 2011
i created a user apache in group apache and by useradd and groupadd command. i am working on a user called server and group is also server. The login screen shows both the users apache and server. My concern is that if sombody has the password to the username apache, hecan login. How do you disable user apache on the login screen so that it only shows user server.
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May 23, 2010
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.
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May 15, 2010
I want to refuse access for some users to usb pen and audio. In previous releases (debian, ubuntu , debian-based ..) , it is enough to remove the user from the group.
that is in /etc/group
audio:x:29:bela
plugdev:x:46:bela,geol
with theses lines : bela can heard sound, but not geol, for bela and geol the usb pen is automatically mounted. But not for nobody else. It is NOT the case in the new release, I mean, even if I remove a user from the plugdev group, the usb pen is automatically mounted for that user.
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Apr 7, 2010
I just want to disable rm command for an user..Root only need to use that
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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.
In squid the network setting is
acl our_networks src 192.168.1.0/24 http_access allow our_networks
The users IP address are
192.168.1.50 and 192.168.1.51
and my squid proxy IP is 192.168.1.10
I even remove the proxy settings in mozilla but the users again put and enjoy internet.
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May 12, 2010
Once again, nobody seems to understand security properly when they decide to add nifty new features. After upgrading to 10.04 from 9.10, I now have a listing of all the user accounts under "Switch from" when I go the the logout menu at the upper right side of the task bar. This is a terrible security hole that should never have been allowed in the first place, and is just as annoying as the default behavior of listing all the user accounts on the login screen.
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Mar 13, 2011
just started using Debian today and I would like to know how can I disable the user acount password, I am the only user on this computer so I would like it to boot strait into my account.
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May 15, 2011
I'd like to set up a restricted guest account which is not allowed to access any network interfaces. In particular, I don't want that user to access the internet either directly or through some network proxy, but I'd like my own account to still have normal internet access. How do I disable all network services for a particular account without affecting other accounts?
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Jan 27, 2010
I don't want people to use my machine without my presence since I have a lot of cookies and files stored on this machine. So I hope each time the system starts it shows login window and asks for account/pwd. How can I do it?
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Nov 12, 2010
I am looking for a way to deny telnet and ssh to one specific user. So far I've only tested with telnet and my attempts have been limited to various hosts.deny entries:
in.telnetd : user@server
in.telnetd : user@server.domain.com
in.telnetd : user@IP_address
in.telnetd : user@.domain.com
None of these work. The only thing I've found that does work is:in.telnetd : IP_addressBut this is only a semi-viable solution because we will soon have multiple logins for the one username from different servers and sub-nets. Ideally, I'd like to be able to deny telnet and ssh access to this username regardless of where the login originates. I suppose it would be possible to specify each server IP, but that'll be a bear to maintain
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Feb 25, 2011
I want to disable the remote login for particular user id in linux server.
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Apr 5, 2011
if I create a User in linux with useradd command useradd -s /bin/bash -d /home/testuser testuser
How can I make it such that he cannot run "ls" command when he FTPs into the server using the username/passwd I setup.I would not mind disabling "ls" for SSh or FTP as long as user is unable to list all files in the home directory and is only able to use FTP commands like GET, PUT, RENAME etc...
Dont want them to have DELETE permission also...in this folder. This user will only be used for FTP...how can I enforce the above controls.
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Jul 14, 2011
I have written a device driver and I would like to disable an interrupt. In kernel space there is a function called "disable_irq(int irq)", but, is it possible to do it from user space?
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