Basic Linux security for beginners – Save Your Computers from Attackers!
Now day’s safety is one of the most important parts on the Internet world. Security is such a type of thing that can affect every computer users. Now day’s many people are worry about the security factor of their system.
Computer hackers are the most important problematic issue in the online world today. However, there are many security packages invented to protect the system from hacking and also from other hazards. By using such packages system administrators can protect their system from hacking. In the current days Linux is one of the ideal security packages for beginners.
Due to such strong defense program Linux has managed more attention for the system administrators. By understanding some basic things about Linux you can use the Linux security program on your computer.
By going online you can find basic Linux security described in the user’s manual. From web hosting service provider you can easily get some detail about Linux security. For easy set up of Linux security you need an online connection for your system. Linux security
packages perform under TCP and IP protocol. It is a great advantage for beginners to use Linux security packages and save their computers from getting any type of hazards.
Whereas there are far, fewer worms & viruses for the Linux, and there are a few script kiddie attacks as well as vulnerabilities in the major subsystems from every time.
With this in your mind, here is a few advice for about to connect the Linux system to Internet for first time. While planning the installation, you may take benefit of a few of kernel’s features to make system tougher target. For instance, kernel will mount filesystems read only.
So, by making /usr subdirectory the separate file system, you may mount that read only that makes it more difficult for attacker to upload the root kit or modify files in /usr.
In case, you are concerned about the physical security, then you must password protect BIOS settings so attacker will not boot a system off floppy and CD ROM, and you must as well password protect boot loader (LILO and GRUB) configuration so she will not change kernel command line.
The Modern Linux systems generally make use of MD5 that generates 128bit hash from the arbitrary length input as well as is much, harder to crack.