certwatch_selinux(8)

✨ certwatch_selinux(8) — the SELinux policy for certwatch, bestie ✨

okay so this is certwatch_selinux, part of the SELinux Policy certwatch family, and it's literally your cheat sheet for how the certwatch processes get locked down by SELinux 💅

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💖 NAME 💖

certwatch_selinux — Security Enhanced Linux Policy for the certwatch processes 🎀

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🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the certwatch processes via flexible mandatory access control. no cap, that's the whole vibe — SELinux is the bouncer at the club and it decides what your certwatch processes are allowed to touch 💅

The certwatch processes execute with the certwatch_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 certwatch_t

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🦋 ENTRYPOINTS 🦋

The certwatch_t SELinux type can be entered via the certwatch_exec_t file type. that's the doorway, the main character entrance, if you will ✨

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

/etc/cron.daily/certwatch

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system — everyone gets their own little domain, iconic behavior 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 certwatch policy is very flexible allowing users to setup their certwatch processes in as secure a method as possible. tightest access possible? we love to see it 🔥

The following process types are defined for certwatch:

certwatch_t

Note: semanage permissive -a certwatch_t can be used to make the process type certwatch_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.

so like, permissive mode is the "I'm watching you but I'm not gonna stop you" era 🙈 the denials still get logged tho, so it's not a free pass, iykyk.

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⭐ BOOLEANS ⭐

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

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 certwatch_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 overriding your regular perms, both checks gotta pass, fr fr 💯

• auth_cache_t
  • /var/cache/coolkey(/.*)?

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🌈 FILE CONTEXTS 🌈

SELinux requires files to have an extended attribute to define the file type. it's the little label on every file, the ~accessory~ that makes the whole fit work 💅

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 certwatch policy is very flexible allowing users to setup their certwatch processes in as secure a method as possible. same energy as before, the flexibility is real 💖

🧚 STANDARD FILE CONTEXT 🧚

SELinux defines the file context types for the certwatch, 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 certwatch_exec_t '/srv/certwatch/content(/.*)?'
restorecon -R -v /srv/mycertwatch_content

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

The following file types are defined for certwatch:

• certwatch_exec_t — Set files with the certwatch_exec_t type, if you want to transition an executable to the certwatch_t domain. it's the glow-up pipeline: exec here, become certwatch_t over there ✨

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.

okay so chcon is the temporary tattoo and semanage fcontext + restorecon is the real permanent one, choose wisely bestie 😭

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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. yes, a whole GUI, for the mouse girlies 🖱️💖

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🌸 AUTHOR 🌸

This manual page was auto-generated using sepolicy manpage. not me being auto-generated 😭 the sepolicy script really said "I'll do it myself" 💀

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🔥 SEE ALSO 🔥

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

go read those next, bestie, the lore is deep 📚✨

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and that's the whole page!! 🎉 this was certwatch on 26-10-06, serving you certwatch_selinux(8) realness — stay labeled, stay confined, slay 💅👑🦋