Unix security: Difference between revisions

Revision as of 11:01, 13 April 2024

Latest revision as of 13:11, 2 February 2025

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{{Multiple issues|

{{refimprove|date=September 2014}}

{{One source|date=April 2024}}

{{More footnotes needed|date=April 2024}}

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'''Unix security''' refers to the means of [[Computer security|securing]] a [[Unix]] or [[Unix-like]] [[operating system]].

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===Permissions===

{{Main|File system permissions}}

A core security feature in these systems is the [[file system permissions]]. All files in a typical [[Unix filesystem]] have permissions set enabling different access to a file. [[Unix permissions]] permit different users access to a file with different privilege (e.g., reading, writing, execution). Like users, different ''user groups'' have different permissions on a file.

[[Unix permissions]] permit different users access to a file. Different ''user groups'' have different permissions on a file.

===User groups===

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===iptables===

{{Overly detailed/sandbox|This section|date=2024-04-13}}

{{Update section|date=January 2014|reason=Iptables is no longer the "current interface"|inaccurate=yes}}

[[iptables]] is the current user interface for interacting with [[Linux]] kernel [[netfilter]] functionality. It replaced [[ipchains]]. Other [[Unix]] like operating systems may provide their own native functionality and other [[open source]] firewall products exist.