nut_upsmon_selinux(8)

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

🎀 NAME 🎀

okay bestie, welcome to nut_upsmon_selinux(8) — the SELinux Policy nut_upsmon page, and it's giving secure main character energy ✨. This is the Security Enhanced Linux Policy for the nut_upsmon processes. no cap, that's the whole vibe.

🌈 DESCRIPTION 🌈

Security-Enhanced Linux secures the nut_upsmon processes via flexible mandatory access control. literally the bouncer, but for processes.

The nut_upsmon processes execute with the nut_upsmon_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 nut_upsmon_t

🦋 ENTRYPOINTS 🦋

The nut_upsmon_t SELinux type can be entered via the nut_upsmon_exec_t file type. that's the doorway, bestie 🚪✨

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

/usr/bin/upsmon

👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. yes, every process gets a little label, iykyk.

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

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

The following process types are defined for nut_upsmon:

nut_upsmon_t
Note: semanage permissive -a nut_upsmon_t can be used to make the process type nut_upsmon_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so it's chill-ish, but the receipts still show up 😭

🍓 BOOLEANS 🍓

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

  • daemons_dontaudit_scheduling — 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
  • 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 nut_upsmon_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. DAC permissions still matter, bestie — SELinux is not out here replacing them 💀

  • 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
  • initrc_var_run_t
/run/sysconfig(/.*)?
/run/utmp
/run/keymap
/run/numlock-on
/run/setleds-on
/run/runlevel.dir
/run/setmixer_flag
/run/bootsplashctl
  • 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
  • nut_upsmon_tmp_t — this one is listed for nut_upsmon_t, but there are no default paths shown here, bestie 🙈
  • nut_var_run_t
/run/nut(/.*)?
  • root_t
/sysroot/.aleph-version.json
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
/var/lib/ntp
  • systemd_passwd_var_run_t
/run/systemd/ask-password(/.*)?
/run/systemd/ask-password-block(/.*)?

🧚 FILE CONTEXTS 🧚

SELinux requires files to have an extended attribute to define the file type. yep, files have labels too — iconic.

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 nut_upsmon policy is very flexible allowing users to setup their nut_upsmon processes in as secure a method as possible. flexible and secure, the dream combo 🫶

💜 STANDARD FILE CONTEXT 💜

SELinux defines the file context types for the nut_upsmon, 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 nut_upsmon_exec_t
'/srv/nut_upsmon/content(/.*)?'
restorecon -R -v /srv/mynut_upsmon_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. regex jump scare, but make it useful 😭✨

The following file types are defined for nut_upsmon:

  • nut_upsmon_exec_t — Set files with the nut_upsmon_exec_t type, if you want to transition an executable to the nut_upsmon_t domain.
  • nut_upsmon_tmp_t — Set files with the nut_upsmon_tmp_t type, if you want to store nut upsmon temporary files in the /tmp directories.
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, bestie — know the difference 💅

⭐ 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. GUI girlies rise 🎀

🌟 AUTHOR 🌟

This manual page was auto-generated using sepolicy manpage . yes, auto-generated, but still slaying in my heart 💖

🌈 SEE ALSO 🌈

okay bye bestie — this page is from source/version nut_upsmon, dated 26-10-06, and its manual name is nut_upsmon_selinux(8) 💖✨ periodt.

📦 where this page comes from