Linux systems are fairly resistant to intrusion attempts. However, for certain applications requiring very high security levels, the features found in standard distributions may prove insufficient. This article examines several of the most popular ways to increase Linux system security at kernel level.

The notions of a secure and insecure operating system are deceptive. The actual security level depends primarily on system configuration and system administrator skills, covering technological and non-technological means of protection, choice of software solution and the administrator

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