General :: How To Restrict Use Of A Computer?
Nov 22, 2010
Suppose that some person is insomniac because of a bad habit of chatting on the IRC every night until 3AM. That completely ruins this person's life because he is unable to wake up on time to attend his exams, because he will be fully exhausted everyday and will feel depressive.
That person is conscious of this bad behaviour, and would accept any help including installing a software on his own computer granting me admin privileges to install it.
Do you know of such a software that ideally would: Would prevent use of the computer at certain time ranges, let's say 11PM — 6AM Would gracefully shutdown the computer at the beginning of that time range (not killing all the applications brutally), and shutdown it if the user attempts to switch it back on Would warn 10 minutes beforehand Could occasionally be disabled if I give a one-time password to that person?
That person uses Linux, and I am curious of knowing what is available for that purpose. It is kind of a parental control, but not for a child.
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Sep 15, 2011
Under Linux, I would like to be able to launch anything from command line in a "safe" environment, i.e. be assured that it can't read or write any file on my computer, and even better if it couldn't access the network.I thought about creating a user with reading rights only in the current folder (and nowhere else), and su to this user to launch the command, would this work ? And what about the network ?
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Apr 21, 2011
I just wondering if scp working with restrict bash ? It seems like my scp just stuck there while login.
If i use ftp i get 530 login failed..
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Aug 5, 2011
As example, I have directory in /root called as "shared". i already shared this directory using NFS. i want to limit this directory size into 20 GB(20*1024*1024).That means "shared" directory reserved 20 GB disk space from the HDD.how can i solve this problem
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Jan 21, 2010
1-Can I do su - userA in php? Cam I have php run the whole script as userA.
2-Can I make php to run from a certain directory? like chroot kind of things.
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May 26, 2011
I use Rh server , can advise if I want to restrict the root user can not directly login to the system ( eg. ssh -l root IP_address" , what can i do ?
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Sep 14, 2010
Can I restrict the number of ssh connections to my Linux box - by username or by ip or both?
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Nov 18, 2010
I have written a simple server application (with an HTTP interface). I want to ensure that only calls from the local machine are processed - i.e. I want to prevent outsiders from accessing/using my server.
How may I restrict outsiders (i.e. requests from remote machines)?
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Jan 4, 2011
During set-up of a home server (running Kubuntu 10.04), I created an admin user for performing administrative tasks that may require an unmounted home. This user has a home directory on the root partition of the box. The machine has an internet-facing SSH server, and I have restricted the set of users that can connect via SSH, but I would like to restrict it further by making admin only accessible from my laptop (or perhaps only from the local 192.168.1.0/24 range). I currently have only an
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May 24, 2011
I'm in the process of restricting access to my Linux production box, where ssh access needs to be limited to only a few MAC addresses.I've followed the instructions outlined in this guide and ran the following two commands:
/sbin/iptables -A INPUT -m mac --mac-source XX:XX:XX:XX:XX:XX -j DROP
/sbin/iptables -A INPUT -p tcp --destination-port 22 -m mac --mac-source XX:XX:XX:XX:XX:XX -j ACCEPT
root@xxxx:~/#: iptables --list
[code]....
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Jul 6, 2011
NSA's Guide to the Secure Configuration of Red Hat Enterprise Linux 5 recommands restricting device ownership to root only.
So my question is why should we restrict device ownership to root? And what does device ownership mean anyway in Linux?
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Jan 27, 2010
Can I restrict the number of ssh connections to my Linux box - by username or by ip or both?
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Jul 27, 2010
I use 'grep -Ri "mypattern" .' to search for all files in the current directory recursively that contain "mypattern". But this command returns every single occurence, so that if a given file has several occurences of the pattern, the screen fills up pretty quick. More than likely, there's a way to restrict the output so that it only displays each file once, no matter how many occurences it contains, but I couldn't find how to do it.
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Jun 9, 2010
how can i restrict a single particular user from logging into the server not more than 5 times?
The conditions may be:
1) wrong password
2) can login only 5 times on one day etc.
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Mar 11, 2010
Is there way we can restrict root to su to normal user. Or at least a way to prompt for the password when root tries to su <username>.
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May 28, 2011
How to restrict users to send mail to outside domains in qmail server, i have centos and qmail installed
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Jun 24, 2011
I want to limit delete of a particular folder in the user's home folder and to restrict any add/change/delete on files in that restricted directory.
/home/myuser
/home/myuser/_protected //no delete
/home/myuser/_protected/1.txt //only read
How can I do that on Ubuntu server?
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Aug 12, 2010
If there is a general NFS share in the LAN and for example this share has three files - a, b, c is there any way to restrict file access to the root user of one particular host(falcon) in the same LAN environment while the normal users from the same host(falcon) should be able to access the NFS share & files a, b, c.
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Jan 20, 2011
is there any way so that we can restrict root to delete a file/directories and What is extended file attributes.
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May 15, 2011
I need to restrict users if their download file size exceeds xxx amount, set later download speed to "256kbps".
OS: Centos 5.5
Squid 3.1.8
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Jan 5, 2010
for christmas my parents got both my younger sister and i acer mini computers, model d250-1958. my sister was trying to change her password that lets herself as a particular user log in. somehpw she messed up the password and its not what she thought it was and now she doesn't have any way of accessing anything. i thought that there might be an ovveride system or a reseting trick. i've looked in the manual but cant find anything of the sort for either of the two options.
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Jun 17, 2011
I am using fedora 10 in two computers. Just for my own practice I sent a file to my second computer.
1st computer IP is 192.168.1.10
2nd computer IP is 192.168.1.20
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The file has been successfully copied to the second computer but I again want to copy that file into my local computer by still sitting in my 1st computer.
[Code]....
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Apr 17, 2009
I boot linux from a usb drive so I can carry my distro wherever I go - I've been doing it for quite some time now and it's always worked wonderfully. Problem: This morning my little cousin unplugged the computer WHILE I was booting into linux. Power loss has happened before, but with no ill effects. This time however, it's decided it won't boot. The screen clears, and just as GRUB is about to load, it freezes and the computer reboots over and over.
I booted to a LiveCD of Ubuntu to try and fsck the drive, but it won't mount the volume. I've worked with this install so long, and have customized it so much I **really** don't want to do a reinstall.. What can I do?
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Jun 28, 2011
I have a situation where I am trying to move some data from a Linux computer to a Windows computer. In all there is 700GB of data to move in about 1.5 million files, so I don't want to do this over the network.My first thought was to use an external USB hard drive and create an NTFS partition and copy the files from the linux computer to mount on the Windows computer. After 4 days of copying without completion I abandoned that idea. I thought the NTFS might be slowing it down, so I created an EXT3 partition. 4 Days later it was still copying. I did some calculations and there was no way the USB 2.0 connection was that slow. I then used ddrescue and cloned the drive to be copied overnight and it took about 12 hours. i was able to mount the USB drive under Linux and access the files appropriately. The only problem is that I can not access that USB drive on my Windows 7 computer. I have tried Explore2fs, DiskInternals Linux Reader, and Ext2 Installable File System For Windows, but none of them is recognizing the external drive.
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Feb 25, 2011
I need redirect serial port from ONE computer to ANOTHER computer, and at the another send this port to VirtualBox with WindowsXP.VB needed because i need to use software for windoze I do this:NE computer:socat tcp-l:54321,reuseaddr,fork file:/dev/ttyS0,nonblock,waitlock=/var/run/tty0.lock
ANOTHER computer:
socat pty,link=/tmp/ttyS0,waitslave tcp:ONE:54321
Now (at ANOTHER) i've set serial port in VirtualBox as
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Nov 15, 2010
I'm a terrible procrastinator, it's awe-inspiring annoying and stressful. This in combination with being a information-holic makes the Internet fairly lethal to me; I risk failing my college course because of it, so trust me when I say I'm deadly serious about this.
However, I think you guys may be able to help out, and maybe this will also help some people here with similar problems:
Because so much of my time is taken up with Interwebz, I thought to carefully restrict my internet use. It's not prefect, but it's part of a solution.
To date: I have Firefox and the ProCon extension which uses a whitelist of websites I can access. The extension cannot be uninstalled/disabled and I use a long hex password split into 3 parts, two of which my friends have (so I have to ask my friends for the password parts in order to update the whitelist, hence making it socially awkward to fritter away time online).
So far, it has worked a treat and I'm really pleased with it.
However, this is the problem:
I need to restrict web access so *only* Firefox can access the web. That way I cannot use Chrome/Opera, or even (shudder) use wine to run Internet Exploder.
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Sep 8, 2009
I get a Mount,Computer location error and will not mount any drives but boot! When I go to places->Computer on Linux Ubuntu 9.04 and I compiled gmp-4.3.1 and mpfr-2.4.1 last because I wanted gcc-4.4.1 to code and will not compile also gcc error not installed gmp-4.3.1 and mpfr-2.4.1. On screen is...
Could not Desplay "computer:". Nautilus cannot handle "computer" locations
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May 28, 2011
I have three computers in my network, but two will be mentioned. Computer A is a Linux Mint 9/Windows 7 dual-boot, and I have just installed Mandriva Free 2010.2, which I will call Computer B.
Now my main problem is that Computer B, while it can see and access Computer A's shares as well as the third computer, the aforementioned computers cannot access Computer B. The message was: "Unable to mount location/Failed to mount Windows share." Now, the SMB protocol was used because of the third computer and Computer A have Windows OSs installed in them.
What I originally wanted was that I can share Computer B's NTFS partition, namely Documents and Downloads, to the other computers. And I can't do that, because of the error message.
What I can do, however, is use Computer B to view shares from the other two computers (Computer A, as an example). By my experiences in Linux Mint, I understand that I'd have to mount my Windows partitions in order to share them. I don't even know if my NTFS drive in Computer B is mounted, though that is what was described.
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Jul 7, 2010
How to restrict the swapping kernel memory and user process memory? Memory locking like mlockall()? Disable swapping feature in linux kernel? My system runs 64-bit CentOS under 6GB RAM.
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Jun 29, 2009
How can i restrict use of USB in redhat. & also is it possible to allow USB devices for only specific devices or only few known penDrives?
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