I know this is a rlly dumb question (sorry) but is there a way to set up parental controls on my ubuntu 14.04 computer? Thanks in advance
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I bought my kids a PC and installed 12.04 (Unity) on it.  The bottom line is, I want my children to use the computer unsupervised while I have confidence they cannot access anything inappropriate.  What I have looked at:  I was looking at Scrubit a tool which allows me configure my wifi router to block content and this solution would also protect my other PC and mobile devices.  This may be overkill as I just want the solution to work on one PC.    I also did some Google searches and came across the application called .  My experience of OSS is that the best solutions frequently never appear first on a Google search list and in this case I need to trust the methods therefore my question is very specific.   I want to leverage your knowledge and experience to understand What is the best way to restrict adult content on 12.04 LTS as this is important to me.  It maybe a combination of things so please don't answer this question "try this or that", then give me some PPA unless you can share your experience of how good it is and of course if there are any constraints.
56744
How to block certain applications from opening on certain accounts (eg: Stop account John from opening Firefox or Gimp). It is assumed this is for the GUI and not the terminal and would only apply to specific users, so for example user X can open Gimp but not Firefox, user Z can open Software Center but not VirtualBox.  What good and easy way is there to do this for a new user of Ubuntu.
77244
I am new to Linux and Ubuntu. When I don't know how to do something with this OS I search on the web and Ask Ubuntu and always find the answer.  But sometimes it's not a great answer nor complete tutorial. I follow the instructions anyway, but I don't know what all the commands mean.  So my question is:   When I follow a tutorial, am I 100% safe? If not, then how can I tell I am in danger?
83813
As a dedicated Ubuntu server or as a VPS, I am looking for a web control panel, something like cPanel which is something like a web administrator for a server.  I have not used any on Linux since I do everything through the terminal, but still want to know what I can use in the case I have to recommend Ubuntu Server with such an application installed.
92297
So I am running Ubuntu Studio on my laptop and what do I do to connect to a proxy? I search for proxy and in network settings their is no PROXY tab. What are key words in the tabs to look for?
105393
How do you do a headless install of linux? No monitor, no keyboard. Machine has floopy and cd drive. Can I configure a live cd to run sshd with a preconfigured pass or something similar and manage it via that?  Instructions for fedora 8+ would be ace but anything else also welcomed.  Cheers.
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What are the pros and cons of controlling (lowering, or even overclocking) the CPU frequency on a laptop? How can I do it in Ubuntu and will it increase my battery life (as I never play games and stuff)  And do fan speed and CPU frequency have any correlation?
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Yes, I realize that defeats the purpose of standard user. But here is the situation. A friend of mine wants to set up time limits for his home schooled son, and his son needs to be a standard user in order to use Family Safety. But at the same time, his son (who I personally think is way too old to have time limits), needs to be able to update and install some of his games on his computer. So I guess it's just sort of "light" parental control (just something to help him focus and not get distracted with hours of gaming).  It is the basic version of Windows 8.1, so there is no Group Policy editor (gpedit.msc). However, I'm fairly good with computers and I figured out how to install it. But it doesn't have a lot of the features that the "real" gpedit seems to have. Here is an example of what is in my gpedit:
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How I can allow only my own ip to login for my ubuntu server ? Yesterday got 1500 unwanted failed login attempts.  Allowing only my own IP, could be the most secure from hackers ? I use Postfix only for sending, so that wont need to allow any incoming connections.
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I know there something called fancontrol, that enables you to control the speed of your system's ventilation. I'd like to let my fans spin a bit faster as my laptop is heating up very easilly. All tutorials and stuff I've found are for old versions of Ubuntu and don't seem to be working anymore.  Can anyone explain to me or give me a good link on how I  can get it working on Ubuntu? Something different with the same effect is also fine.
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I don't have a  router, but I mostly use my desktop for online shopping and torrenting. So, do I have to enable the firewall? I hope not, because I'm really dumb and I don't think I will be able to configure the firewall.
60145
When I first installed Ubuntu, all networking worked perfectly. After messing with the settings every so often, it slowly became unusable. I would really like to know if there is a way to completely reset network settings without re-installing Ubuntu, DNS settings, proxy settings, everything. I'm running 12.04.
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I know that some define permissions on the file system (such as www-data).  But I don't understand why  by adding a user to the "Video" group.  So the question is mainly what do all the pre-built groups do in Ubuntu?  More reasonably, since there are so many, what "special" groups exist and how or when should they be used?
93069
This might be a very naive question, but I wanted to know how I could give multiple users access to a single computer without making them root users. How would I give them limitted sudo access such that they could still issue commands like  sudo apt-get install epstopdf   I imagine this could be an incredibly stupid question as once root user access is given, they could do whatever they want. Therefore, is there any way around this? I am open to suggestions
28014
Can anyone tell me how to configure all the buttons on a  under Ubuntu 12.04?  Specifically, I like to make one of them just the Ctrl key (for control clicking webpages) and another one Ctrl+W to close tabs.  I also normally make the scroll wheel page down for each click (otherwise it hurts my arms to be scrolling so much).  I make pushing the wheel to the left = pageback and pushing to the right = page forward.  I've searched for other answers to this and found something related   But when I posted a followup post to solve the issue, no one responded --perhaps I made the mistake of posting to a question that had been "solved."  I'm not sure how I'm supposed to reopen a question that is pertinent to my question but doesn't quite solve mine.
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I'm really concerned because a need to know if Ubuntu is totally free for a company. I mean, if I use a private software, I have to pay that license package, but Have I to pay for use Ubuntu? Have I to get a license?
94931
How do I know my username? I've installed Ubuntu, but I don't know my username, only my password. I can't access my laptop and it can't be opened.