updfstab_selinux(8)

📦
version 20250627+git412.dbf877ab7 · 7 versions
, in opensuse-leap 16.0

🦋 updfstab_selinux: Security Enhanced Linux Policy for updfstab 🦋

✨ NAME ✨

okay so bestie, this is the updfstab_selinux page — it's literally the 411 on the Security Enhanced Linux Policy for the updfstab processes 💅. think of it as the user manual for keeping your updfstab stuff secure and slay.

🌸 DESCRIPTION 🌸

Security-Enhanced Linux — aka SELinux — is literally the bodyguard for your updfstab processes, using flexible mandatory access control to keep things secure. no cap.

The updfstab processes execute with the updfstab_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.

For example:

ps -eZ | grep updfstab_t

🎀 ENTRYPOINTS 🎀

So like, the updfstab_t SELinux type can be entered via the updfstab_exec_t file type.

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

  • /usr/bin/updfstab
  • /usr/bin/fstab-sync

👑 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.

Policy governs the access confined processes have to files. The SELinux updfstab policy is very flexible allowing users to setup their updfstab processes in as secure a method as possible.

The following process types are defined for updfstab:

  • updfstab_t — the main character domain for updfstab processes 💖
Note: semanage permissive -a updfstab_t can be used to make the process type updfstab_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.

🔥 BOOLEANS 🔥

SELinux policy is customizable based on least access required. The updfstab policy is extremely flexible and has several booleans that allow you to manipulate the policy and run updfstab with the tightest access possible.

  • fips_mode — If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
  • nis_enabled — 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

🗂️ MANAGED FILES 🗂️

The SELinux process type updfstab_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note: the process's UID still need to have DAC permissions.

  • krb5_host_rcache_t — the kerberos host rcache vibes 🎫
    • /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
  • mnt_t — mount point energy ⛰️
    • /mnt(/[^/]*)?
    • /mnt(/[^/]*)?
    • /rhev(/[^/]*)?
    • /rhev/[^/]*/.*
    • /media(/[^/]*)?
    • /media(/[^/]*)?
    • /run/media(/[^/]*)?
    • /media/.hal-.*
    • /afs
    • /net
    • /misc
    • /rhev
  • security_t — the security corner 🛡️
    • /selinux

📁 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.

Policy governs the access confined processes have to these files. The SELinux updfstab policy is very flexible allowing users to setup their updfstab processes in as secure a method as possible.

🎀 STANDARD FILE CONTEXT 🎀

SELinux defines the file context types for the updfstab, 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.

semanage fcontext -a -t updfstab_exec_t '/srv/updfstab/content(/.*)?'
restorecon -R -v /srv/myupdfstab_content
Note: SELinux often uses regular expressions to specify labels that match multiple files.

The following file types are defined for updfstab:

  • updfstab_exec_t — Set files with the updfstab_exec_t type, if you want to transition an executable to the updfstab_t domain.

Paths:

  • /usr/bin/updfstab
  • /usr/bin/fstab-sync
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.

💅 COMMANDS 💅

okay so here are the commands that can also be used to manipulate stuff:

  • 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.

🌈 AUTHOR 🌈

This manual page was auto-generated using sepolicy manpage — slay, auto-magic ✨.

🫶 SEE ALSO 🫶

check out these other pages for more tea:

so that was the tea on updfstab_selinux(8) 💖 This page came from the updfstab source, version 26-10-06, and was last updated on that day (iykyk, it's giving vintage). Periodt. 🌈

📦 where this page comes from