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Tinyproxy -- A must for many Ubuntu users - Ubuntu Forums

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At my house, I'm a dad who uses Linux. I have some kids. They're starting to grow up and go to more questionable sites on the Internet (on urging from friends) and it's my job to police it. I am one of these dads who think that... See more » At my house, I'm a dad who uses Linux. I have some kids. They're starting to grow up and go to more questionable sites on the Internet (on urging from friends) and it's my job to police it. I am one of these dads who think that kids get enough exposure to bad stuff from TV, movies, and the public schools, and I don't think they need any more influences until their minds are mature enough to handle it. I also limit the kinds of movies they watch and the kinds of TV shows too. With my oldest child, I have let her watch a bit more than her younger brother, so I mean to say that I'm not the meanest dad in the world. I really do let a kid grow up -- I just try to wait until I think their minds are mature enough to wrap around certain concepts and strong enough to fend off peer pressure. Anyway, I had to secure their Internet surfing. I needed to introduce a proxy. At my office, I spent a lot of time learning Squid proxy and it was frustrating but possible to get it going. That's when I discovered tinyproxy. With this, I was able to get going much, much faster. It's not as robust, but it's got just enough features to get you going. Here's my cheat sheet on getting tinyproxy going at your home. Note that I recommend you stick with Squid if you plan on controlling more than 50 people with a proxy, and even at that, I recommend multiple network cards and/or multiple proxy servers behind a load balancer device for some real performance gains. But for average household use, tinyproxy is probably the tool for you. 1. From your home Linux system, type: sudo gedit /etc/apt/sources.list & 2. Uncomment the universe options (temporarily) and save and quit editor. 3. Type: sudo apt-get update (WARNING: Ignore if Ubuntu pops open a window asking you to update your system -- if you update, you might end up pulling from the universe source and it could make your system more unstable. We'll undo this in a moment.) sudo apt-get install tinyproxy sudo gedit /etc/apt/sources.list & 4. Comment the universe options and save and quit the editor. 5. Type: sudo apt-get update sudo gedit /etc/tiny*/*.conf & 6. Uncomment these lines: Filter "/etc/tinyproxy/filter" FilterURLs On 7. Don't close your editor just yet. Think about your home subnet. Is it "192.168.0.x"? (In many cases this is the case if you are using Windows or are behind a Cable\DSL router. See what IP addresses your home PCs use and that should help you define your subnet. If you don't have a subnet, then that's beyond the discussion here about how to set up your own home subnet. Look elsewhere in Ubuntu Forums for that.) 8. In your tinyproxy.conf file that you're still editing, add a line like this for your current subnet, assuming it's "192.168.0.x": Allow 192.168.0.0/24 9. The /24 stands for the "netmask". The short of it is that it allows 0-255 on the last part of the IP address, meaning, usually, your entire home subnet. I've got you going with a shortcut. If you want more help on netmasks, that's beyond the discussion here. I had to Google for it with keywords "squid and netmask" because tinyproxy and Squid use the same kind of "Allow" statement. 10. Now save your tinyproxy.conf file. 11. Type: sudo cp /usr/share/tinyproxy/default.html /usr/share/tinyproxy/default.html.ORIGINAL sudo gedit /usr/share/tinyproxy/default.html & 12. Now you see an HTML page. The reason I took you here is because this is the template page one sees when they have violated the proxy and gone somewhere they should not have. By default, this page is fairly ugly, and, frankly, confusing for young eyes to see. If you know a little HTML, edit this file to make it less confusing for children. Just note that this HTML is special in that it cannot load images -- it's just text you can put in here. Also watch out for the {} statements -- these are fillers that get filled in by the proxy. Now save the file when done. 13. Type: sudo gedit /etc/tiny*/filter & 14. Now you're editing the filter file. In this part, it's actually pretty hillarious. I don't recommend you let anyone see you type this. You have to think up See less »

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networking, security, sysadmin, ubuntu

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Tinyproxy -- A must for many Ubuntu users - Ubuntu Forums

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