iodined_selinux(8)

🌸 iodined_selinux — the SELinux tea for iodined 💅

okay bestie, so this is the manual page iodined_selinux(8) from the SELinux Policy iodined fam, and it's literally all about how Security-Enhanced Linux keeps the iodined processes on a leash. no cap, it's more interesting than it sounds. 🫶

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✨ NAME ✨

iodined_selinux — Security Enhanced Linux Policy for the iodined processes. that's the whole vibe. 👑

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🦋 DESCRIPTION 🦋

Security-Enhanced Linux secures the iodined processes via flexible mandatory access control. flexible AND mandatory, she contains multitudes. 💖

The iodined processes execute with the iodined_t SELinux type. wanna check if you've got these processes running? just run the ps command with the -Z qualifier, easy peasy. 🍓

For example:

ps -eZ | grep iodined_t

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🎀 ENTRYPOINTS 🎀

The iodined_t SELinux type can be entered via the iodined_exec_t file type. that's the door, babe. 🚪✨

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

/usr/bin/iodined

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💜 PROCESS TYPES 💜

SELinux defines process types (domains) for each process running on the system. yes, every single one gets a lil label. iconic behavior honestly.

You can see the context of a process using the -Z option to ps. go look, it's right there.

Policy governs the access confined processes have to files. SELinux iodined policy is very flexible allowing users to setup their iodined processes in as secure a method as possible. flexible policy, secure result, we love to see it. 🌈

The following process types are defined for iodined:

• iodined_t

Note: semanage permissive -a iodined_t can be used to make the process type iodined_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, she's off the hook but she's still being watched. 😭

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⭐ BOOLEANS ⭐

SELinux policy is customizable based on least access required. iodined policy is extremely flexible and has several booleans that allow you to manipulate the policy and run iodined with the tightest access possible. tightest access possible, that's the motto 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

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🧚 MANAGED FILES 🧚

The SELinux process type iodined_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. policy can't do 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

/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

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🔥 FILE CONTEXTS 🔥

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

You can see the context of a file using the -Z option to ls. same trick, different command, love the consistency.

Policy governs the access confined processes have to these files. SELinux iodined policy is very flexible allowing users to setup their iodined processes in as secure a method as possible. (yes she said it again, it's that important 💅)

🎀 STANDARD FILE CONTEXT 🎀

SELinux defines the file context types for the iodined, 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 iodined_exec_t '/srv/iodined/content(/.*)?'
restorecon -R -v /srv/myiodined_content

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

The following file types are defined for iodined:

iodined_exec_t

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

iodined_initrc_exec_t

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

iodined_unit_file_t

• Set files with the iodined_unit_file_t type, if you want to treat the files as iodined unit content.

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, it WILL matter. 😭

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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 GUI!! for the girlies who like buttons. 🖱️💖

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👑 AUTHOR 👑

This manual page was auto-generated using sepolicy manpage. a robot wrote this, and honestly she ate. 🤖✨

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🌈 SEE ALSO 🌈

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

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okay that's the whole page, you're officially educated. 🎓💖 this one's iodined, dated 26-10-06, and it's the iodined_selinux(8) manual page — go forth and label responsibly, bestie. mwah. 💋🌸