Linux Security Concepts: Difference between revisions

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=Privileged Process=
=Privileged Process=
Traditional UNIX implementations distinguish two categories of processes for the purpose of performing permission checks: privileged processes and [[#Unprivileged_Process|unprivileged processes]]. A privileged process is a process with its [[#Effective_User_ID|effective user ID]] is 0, referred to as superuser or root.
Traditional UNIX implementations distinguish two categories of processes for the purpose of performing permission checks: privileged processes and [[#Unprivileged_Process|unprivileged processes]]. A privileged process is a process with its [[#Effective_User_ID|effective user ID]] is 0, referred to as superuser or root. Privileged processes bypass all kernel permission checks.


=Unprivileged Process=
=Unprivileged Process=

Revision as of 21:28, 1 March 2021

Internal

Privileged Process

Traditional UNIX implementations distinguish two categories of processes for the purpose of performing permission checks: privileged processes and unprivileged processes. A privileged process is a process with its effective user ID is 0, referred to as superuser or root. Privileged processes bypass all kernel permission checks.

Unprivileged Process

An unprivileged process is a process with a non-zero its effective user ID.

Effective User ID

Effective Group ID

Supplementary Group List