naemon_selinux(8)

✨ naemon_selinux(8) ✨

okay so this is the manual page for naemon_selinux — like, the whole naemon_selinux(8) situation — and it's giving "SELinux Policy naemon" energy. buckle up bestie, we're learning policy 💅

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🎀 NAME 🎀

naemon_selinux — Security Enhanced Linux Policy for the naemon processes 🫶

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🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the naemon processes via flexible mandatory access control. no cap, that's the whole vibe — SELinux just wraps those processes up in a little security blanket and controls what they're allowed to touch. 💖

The naemon processes execute with the naemon_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 naemon_t

literally just run that and see if naemon_t shows up. iykyk ✨

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🦋 ENTRYPOINTS 🦋

The naemon_t SELinux type can be entered via the naemon_exec_t file type. so like, that's the doorway into the domain, periodt.

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

/usr/bin/naemon

that's it. one path. iconic. 🎀

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. yes, every process gets its own little identity. main character energy fr fr.

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

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

The following process types are defined for naemon:

naemon_t

Note: semanage permissive -a naemon_t can be used to make the process type naemon_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it stops blocking things but it's still gonna be loud about it 😭

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🌈 BOOLEANS 🌈

SELinux policy is customizable based on least access required. naemon policy is extremely flexible and has several booleans that allow you to manipulate the policy and run naemon with the tightest access possible. tightest access. locked down. slay. 🔥

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

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💜 MANAGED FILES 💜

The SELinux process type naemon_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 isn't out here doing everything for you, bestie. 🙈

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

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

naemon_cache_t

/var/cache/naemon(/.*)?

naemon_log_t

/var/log/naemon(/.*)?

naemon_var_lib_t

/var/lib/naemon(/.*)?

naemon_var_run_t

/var/run/naemon(/.*)?

root_t

/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd

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⭐ FILE CONTEXTS ⭐

SELinux requires files to have an extended attribute to define the file type. it's like a little name tag for every file 🎀

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 naemon policy is very flexible, allowing users to setup their naemon processes in as secure a method as possible.

🌸 STANDARD FILE CONTEXT 🌸

SELinux defines the file context types for the naemon. 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 naemon_var_run_t '/srv/mynaemon_content(/.*)?'
restorecon -R -v /srv/mynaemon_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. like, it's regex girl summer over here 😭

The following file types are defined for naemon:

naemon_cache_t

• Set files with the naemon_cache_t type, if you want to store the files under the /var/cache directory.

naemon_exec_t

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

naemon_initrc_exec_t

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

naemon_log_t

• Set files with the naemon_log_t type, if you want to treat the data as naemon log data, usually stored under the /var/log directory.

naemon_var_lib_t

• Set files with the naemon_var_lib_t type, if you want to store the naemon files under the /var/lib directory.

naemon_var_run_t

• Set files with the naemon_var_run_t type, if you want to store the naemon 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. so like — chcon is the temporary tattoo, semanage fcontext + restorecon is the real ink 💅

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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. a whole GUI, for the girlies who don't live in the terminal (respectfully) 🫶

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💀 AUTHOR 💀

This manual page was auto-generated using sepolicy manpage. not me being a bot-written manpage 😭 iconic honestly.

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🔥 SEE ALSO 🔥

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

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and that's the whole page bestie, you ATE that 💅✨

cute little sign-off: this was naemon for naemon_selinux(8), dated 26-10-23. go forth and label your files responsibly 🎀🦋💖