Protect your Ubuntu system

A few lines of introduction: You go to Linux because you hear its security is high, virus-free . It's true. No need for anti-Spyware removal programs that people can live normally. But actually when asked why the saved password of Pidgin is not encrypted. Pidgin developers have said that other IM programs with password encryption function when saved often only give users false security. It is this false safety that is dangerous. With encryption mechanisms, it takes only a few seconds for the 1 tool to simulate the decoding path to retrieve your password. The lock is only used for immediate people, but the crooks are hard to resist.

Linux is actually safer than Windows but it depends very much on the level and awareness of computer users. So " Don't die because of ignorance "

Here I would like to talk only about the category of people who do not go into technical issues, so only dare to use the word protection rather than security.

1. Why is Ubuntu safer than Windows?

For ordinary users, security issues seem to be uninteresting. They only care about the functions they can use. But the danger here is that most personal computers when installed Windows default users usually have administrator privileges and users are not aware that, with Administrator rights you have full control over the editing system. Install whatever you like. Some of you feel like it because you can freely explore it, but accidentally you open the door to any external dangers that can enter your computer.

As for Linux in general and Ubuntu in particular. Only the original user created has the right to manage the system. The default root account is Disable (Experienced system managers are very cautious when using root accounts).

You are only entitled to your Home folder or external storage, FAT32 format of the Windows partition. But with that initial account, you can also perform a lot of system management tasks. However, each operation requires user authentication and Ubuntu also creates the same Session as on the website automatically asking for password confirmation after a certain period of time.

When logging in command line mode, the password is also not displayed as a * sign. In some versions of Ubuntu 8.04, such as changing the date and time format, the user's account information will not affect the system and will not need to enter the password and if you want to change the entire system just click on the button Unlock. With such a mechanism, the future virus types, if any, will be unable to destroy the whole system but only a small part that the user has the right to influence. In particular, the normal infection mechanisms of Windows such as online transmission, via mobile storage, even just being infected with the website are unavailable. Until now, I only saw the most likely mechanism that was the user who ran the virus.

2. Ubuntu is really safe

For experienced system administrators, Linux is really safe, security holes are updated by vendors such as Canonical, Red Hat. Linux is safe from the original Kernel class.

However, for some users who have moved from Windows to very annoying with the authentication of Ubuntu, some use the root account, some use the sudo command at any time, install a lot of software, use commands taken from the Internet . If the software, scripts are retrieved from an insecure source, and the writers have a bad idea, it is like inviting a burglar.

Try thinking that one day you will find an interesting article on Google and follow it immediately without checking the source of the article. With just one command line, all data on your hard drive will be erased even from external storage. Only Linux has such a dangerous command. Or just a few small lines of code can be active to control the remote computer can be taken advantage of to make your machine Zombie. For installation packages, it is equally dangerous.

3. Watch out for dangers

Here are some experiences when using your Ubuntu to protect yourself:

1. Minimize the use of root accounts. I only use this account when entering Recovery Mode.
2. Think carefully before and after requesting a password. All of Ubuntu's pre-installed applications are safe when entering a Password, but it can lead to changes in the system, causing your computer to have a configuration problem.
3. Install software from trusted sources. Fortunately, the source of the current installation files for Ubuntu as the official Repository, Getdeb.net, as well as the open source projects on sourceforge.net are considered safe and reliable. Installing software from these sources has clear and easy instructions, some just click to install.
4. Some software can be installed in the user's Home directory. The software will only be used personally without affecting the whole system. So consider whether to install it on the entire system. Flash Plugin is an example.
5. Similar to Tips, Tricks on the network must be written by some trusted people. If new posts on the Forum need to wait for members to check before or post 1, ask for a check.
6. Ask the experts for help when questioning something. For an experienced user, it only takes a few minutes to know if your script is safe or not. They can also help you compile software from source code without pre-packaged packages on the Internet. And of course he must be reliable.
7. The last thing is to enjoy the feeling, the power that Ubuntu brings to you. At some point you will become an expert who can help others. And when meeting an article, which software is dangerous, please inform the whole community.

With this article I hope everyone will have more knowledge about security, not only to protect Ubuntu but also the Windows you are using.

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From: Lê Kiến Trúc
Email: tin_truc22@yahoo.com