systemd_..._selinux(8)

💅 systemd_mountfsd_selinux(8) — the systemd_..._selinux glow-up bestie edition ✨

okay so real talk, this page lives in the systemd_mountfsd SELinux policy section of your manual, and it's about to be your new hyperfixation. no cap. 🎀

---

✨ NAME ✨

systemd_mountfsd_selinux — the Security Enhanced Linux Policy for the systemd_mountfsd processes. that's it, that's the whole vibe. 🦋

---

🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the systemd_mountfsd processes via flexible mandatory access control. literally mandatory, like your group chat reading receipts. 💅

The systemd_mountfsd processes execute with the systemd_mountfsd_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 systemd_mountfsd_t

go off, grep. 👑

---

🫶 ENTRYPOINTS 🫶

The systemd_mountfsd_t SELinux type can be entered via the systemd_mountfsd_exec_t file type. that's the door, bestie. 🚪✨

the default entrypoint paths for the systemd_mountfsd_t domain are the following:

/usr/lib/systemd/systemd-mountfsd, /usr/lib/systemd/systemd-mountwork

---

🌈 PROCESS TYPES 🌈

SELinux defines process types (domains) for each process running on the system. one domain per main character, honestly. ✨

you can see the context of a process using the -Z option to ps.

policy governs the access confined processes have to files. SELinux systemd_mountfsd policy is very flexible allowing users to setup their systemd_mountfsd processes in as secure a method as possible. so flexible, so iconic.

the following process types are defined for systemd_mountfsd:

• systemd_mountfsd_t

Note: semanage permissive -a systemd_mountfsd_t can be used to make the process type systemd_mountfsd_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it stops yelling at you but it's still writing everything down in its diary. 😭📓

---

💜 BOOLEANS 💜

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

if you want to dontaudit all daemons scheduling requests (setsched, sys_nice), you must turn on the daemons_dontaudit_scheduling boolean. Enabled by default.

setsebool -P daemons_dontaudit_scheduling 1

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

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 systemd_mountfsd_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. SELinux said "i can only do so much, the UID has to pull its own weight." 💀

cluster_conf_t

/etc/cluster(/.*)?

cluster_var_lib_t

/var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?

cluster_var_run_t

/run/crm(/.*)?
/run/cman_.*
/run/rsctmp(/.*)?
/run/aisexec.*
/run/heartbeat(/.*)?
/run/pcsd-ruby.socket
/run/corosync-qnetd(/.*)?
/run/corosync-qdevice(/.*)?
/run/pcsd.socket
/run/corosync.pid
/run/cpglockd.pid
/run/rgmanager.pid
/run/cluster/rgmanager.sk

krb5_host_rcache_t

/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

root_t

/sysroot/.aleph-version.json
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
/var/lib/ntp

---

🦋 FILE CONTEXTS 🦋

SELinux requires files to have an extended attribute to define the file type. yes, even files have lore. ✨

you can see the context of a file using the -Z option to ls.

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

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the systemd_mountfsd, 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 systemd_mountfsd_exec_t '/srv/systemd_mountfsd/content(/.*)?'
restorecon -R -v /srv/mysystemd_mountfsd_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. regex slay. 🧚

the following file types are defined for systemd_mountfsd:

systemd_mountfsd_exec_t

• Set files with the systemd_mountfsd_exec_t type, if you want to transition an executable to the systemd_mountfsd_t domain.

Paths:

/usr/lib/systemd/systemd-mountfsd, /usr/lib/systemd/systemd-mountwork

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 chcon is giving "i'll remember this forever" and then immediately forgetting. 🙈

---

🔥 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. a whole GUI, for the girlies who don't do terminal at 3am. 🫶

---

👑 AUTHOR 👑

This manual page was auto-generated using sepolicy manpage. not a human, just robots being iconic. 💅

---

🌟 SEE ALSO 🌟

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

---

that's the whole page, bestie. go read a manual, slay, and remember: this vibe dropped on 26-10-06 under the systemd_mountfsd banner, systemd_..._selinux(8) edition. mwah. 💖🎀🦋