What do you think? You do not need to do anything for you because of security on Linux is Linux? Think back. Linux is an operating system that is connected to the Internet, so the need for security. There is no operating system is 100% safe if, connected online to the Internet. Here are five important tips on Linux security.
1. Take advantage of the keyring
For many people, this is a nuisance. You log in to your computer, your computer asks the connection to the network (or an LDAP server, etc.), and you must enter your keyring password. The temptation to disable this feature by giving a blank password and ignore the warning that you will be sending information without encryption (including passwords). This is not a good idea. Although you might think this is very complicated, with the aim of features or functionality reasons to encrypt sensitive passwords when they are connected to the internet.
2. Update user passwords regularly
If you use a multi-user (such as Linux usually do), you must ensure that you have to change the password as often as possible. To do this you can use the command Chage with the command “sudo USERNAME – / Chage (where USERNAME is the user name you want to use).
3. Do not disable SELinux
Similar to the keyring, SELinux there for a reason. SE stands for Enhanced Security and provide a mechanism that controls access to all applications.
There are a number of “solutions” to problems that can be solved by disabling SELinux. If this is seen as a solution, then it would only create more, the problem worse. If a particular program does not run well, look and check into the modification of an SELinux policy to suit your needs instead of to disable SELinux. If you do not want to do it,
You can check with a GUI tool called polgengui.
4. Do not login as root
If you need to do the administration on your computer, you should login as normal user. When you log in as the root user, you are effectively passed through a security barrier and allow access to the system and subsystems are usually not accessible when logged in as a user.
5. Install the latest security updates quickly
There is a BIG difference between how to handle Linux and Windows updates. Where Windows is usually not infrequently updated massively, while Linux is often the smaller updates. Ignoring security updates can be disastrous if a security hole “leak” is not patched your system. Never abandon a security update that shows the icons that are already available. And if you use a GUI-less server, make sure you set the cron job to check for updates either manually or check the daily or weekly.
Are you and your Linux system already feel safer? With just five tips you’ve created your Linux stisem latest security level. Computer network security is in progress and always changing. But with these tips, you’ll be better prepared to meet that elusive goal.