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May 19, 2023 · In this article, we will examine the key Linux security features that contribute to this system's being a secure OS. Additionally, we will evaluate the protection capabilities Linux features offer to administrators and users and how they combat cyber security vulnerabilities and attacks in network security.
- Linux File Permissions. In Unix-like operating systems such as Linux systems, everything is a file. So file permissions are the bedrock of security in the Linux file system.
- Sudo Command. The sudo command is a crucial command on Linux systems that allows you to run other commands with the privileges of another user, normally as a user who has a higher level of authorization on the system.
- Su Command. The primary purpose of the su command is to allow a privileged user to switch to another user’s account. Ideally, it will enable one user account to run commands with a substitute user and group ID, by providing the password of the substitute user.
- Data Backup and Recovery Tools in Linux. Backing up data is a traditional way of ensuring data security. Therefore the use of backup tools goes without saying.
- Use Strong Passwords. (Basic security mechanism) Use strong passwords and change them regularly as a basic step to securing your Linux system. Strong passwords prevent unauthorized access to the system and reduce the risk of identity theft, data loss, and other security incidents.
- Verify All Accounts Have Passwords. (Basic security mechanism) Accounts with no passwords allow anyone to log into the system without any authentication, compromising the system's data security and confidentiality.
- Set Up Password Aging. (Basic security mechanism) Password aging is the practice of requiring users to change passwords regularly. Regular password changes reduce the chance of users reusing previous passwords.
- Restrict the Use of Previous Passwords on Linux. (Basic security mechanism) Prevent all users from reusing old passwords. Old passwords might have been compromised and attackers might be actively trying to take advantage of that to hack into the system.
Jul 11, 2013 · In this article, we’ll take a high-level look at the security features of the Linux kernel. We’ll start with a brief overview of traditional Unix security, and the rationale for extending that for Linux, then we’ll discuss the Linux security extensions. Unix Security – Discretionary Access Control
Aug 2, 2023 · 5 - 10 min read Aug 02, 2023. Linux security is anything but stagnant. Cybercriminals are exploiting the growing popularity of the OS and its powered high-value servers and devices by utilizing new and evolving attacks in network security.
Jan 1, 2022 · Linux also greatly restricts root access through a strict user privilege model and features a selection of built-in kernel security defenses including firewalls that use packet filters in the kernel, the UEFI Secure Boot firmware verification mechanism, the Linux Kernel Lockdown configuration option and the SELinux or AppArmor Mandatory Access C...
Security | Ubuntu. Dedicated to the security of Ubuntu. Since its inception in 2004, Ubuntu has been built on a foundation of enterprise-grade, industry leading security practices.
