pwauth_selinux(8)

🌸 NAME 🌸

Okay bestie, welcome to pwauth_selinux(8) 💖 — this is the SELinux Policy pwauth manual, and the page is literally called pwauth_selinux(8). The NAME energy is pwauth_selinux: the Security Enhanced Linux Policy for the pwauth processes. Periodt. ✨

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✨ DESCRIPTION ✨

Security-Enhanced Linux secures the pwauth processes via flexible mandatory access control. No cap, that’s the whole vibe. 🛡️

The pwauth processes execute with the pwauth_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. The way that -Z just reveals the context? Iconic. 👑

For example:

ps -eZ | grep pwauth_t

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🚪 ENTRYPOINTS 🚪

The pwauth_t SELinux type can be entered via the pwauth_exec_t file type. That’s the doorway, bestie. 🚪✨

The default entrypoint paths for the pwauth_t domain are the following:

/usr/bin/pwauth

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. You can see the context of a process using the -Z option to ps. Context check! 🔍

Policy governs the access confined processes have to files. SELinux pwauth policy is very flexible, allowing users to set up their pwauth processes in as secure a method as possible. Slay. 💅

The following process types are defined for pwauth:

• pwauth_t

Note: semanage permissive -a pwauth_t can be used to make the process type pwauth_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. So like, it’s not a free pass — the receipts still show up. 😭📝

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🎀 BOOLEANS 🎀

SELinux policy is customizable based on least access required. pwauth policy is extremely flexible and has several booleans that allow you to manipulate the policy and run pwauth with the tightest access possible. Tightest access possible = main character security energy. 🎀🔐

If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default. 🫶

setsebool -P nis_enabled 1

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📁 MANAGED FILES 📁

The SELinux process type pwauth_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note: the processes UID still need to have DAC permissions. Don’t forget the UID tea. ☕👀

• krb5_host_rcache_t — default paths:

/var/tmp/krb5_0.rcache2
/var/cache/krb5rcache(/.*)?
/var/tmp/nfs_0
/var/tmp/DNS_25
/var/tmp/host_0
/var/tmp/imap_0
/var/tmp/HTTP_23
/var/tmp/HTTP_48
/var/tmp/ldap_55
/var/tmp/ldap_487
/var/tmp/ldapmap1_0

• lastlog_t — default paths:

/var/log/lastlog.*
/var/lib/lastlog(/.*)?

• pwauth_var_run_t — default path:

/run/pwauth.lock

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🖼️ FILE CONTEXTS 🖼️

SELinux requires files to have an extended attribute to define the file type. You can see the context of a file using the -Z option to ls. File context vibe check! 🖼️✨

Policy governs the access confined processes have to these files. SELinux pwauth policy is very flexible, allowing users to set up their pwauth processes in as secure a method as possible. We love a secure setup. 💜

STANDARD FILE CONTEXT 🧚

SELinux defines the file context types for the pwauth. If you wanted to store files with these types in a different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. It’s giving labeling database glow-up. 🌈

semanage fcontext -a -t pwauth_exec_t '/srv/pwauth/content(/.*)?'
restorecon -R -v /srv/mypwauth_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. Regex girlies rise. 🧚✨

The following file types are defined for pwauth:

• pwauth_exec_t — Set files with the pwauth_exec_t type, if you want to transition an executable to the pwauth_t domain.
• pwauth_var_run_t — Set files with the pwauth_var_run_t type, if you want to store the pwauth files under the /run or /var/run directory.

Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels. Temporary vs permanent — know the difference, bestie. 💅

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💅 COMMANDS 💅

• semanage fcontext can also be used to manipulate default file context mappings.
• semanage permissive can also be used to manipulate whether or not a process type is permissive.
• semanage module can also be used to enable/disable/install/remove policy modules.
• semanage boolean can also be used to manipulate the booleans
• system-config-selinux is a GUI tool available to customize SELinux policy settings.

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🖋️ AUTHOR 🖋️

This manual page was auto-generated using sepolicy manpage . 🤖✨

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👀 SEE ALSO 👀

selinux(8), pwauth(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8)

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Signed off with main character energy: pwauth 🫶 dated 26-10-06 🌸 filed under pwauth_selinux(8) 👑💖