qmail_queue_selinux(8)

💅 qmail_queue_selinux(8) — the SELinux tea for qmail_queue

okay bestie, so this is the manual page for qmail_queue_selinux (that's the qmail_queue_selinux(8) vibe, the SELinux Policy one) and we're gonna get you comfy with it, no cap ✨

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🌸 NAME 🌸

qmail_queue_selinux — Security Enhanced Linux Policy for the qmail_queue processes. literally what it says on the tin, and we love a clear title 🫶

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✨ DESCRIPTION ✨

Security-Enhanced Linux secures the qmail_queue processes via flexible mandatory access control. that's the whole point, it's giving protective bestie energy 💖

The qmail_queue processes execute with the qmail_queue_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 qmail_queue_t

like, just peek at your process context, iykyk 👑

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🚪 ENTRYPOINTS 🚪

The qmail_queue_t SELinux type can be entered via the qmail_queue_exec_t file type.

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

/var/qmail/bin/qmail-queue

that's the door, that's the only door fr fr 🚪✨

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🧬 PROCESS TYPES 🧬

SELinux defines process types (domains) for each process running on the system

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

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

The following process types are defined for qmail_queue:

• qmail_queue_t

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

so permissive mode = no blocking but still snitching to the logs 😭 the AVC messages keep coming, they always keep receipts 📝

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🔘 BOOLEANS 🔘

SELinux policy is customizable based on least access required. qmail_queue policy is extremely flexible and has several booleans that allow you to manipulate the policy and run qmail_queue with the tightest access possible. tightest access possible, we love a minimal queen 🎀

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

that -P makes it persistent btw, iconic behavior 🌟

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📁 MANAGED FILES 📁

The SELinux process type qmail_queue_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. yes bestie, SELinux is not out here doing DAC's job, everybody stays in their lane 🦋

• arpwatch_tmp_t
• qmail_spool_t
  • /var/qmail/queue(/.*)?

look at that regex go, it's covering the whole queue directory and everything under it ⭐

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🗂️ FILE CONTEXTS 🗂️

SELinux requires files to have an extended attribute to define the file type.

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

🎀 STANDARD FILE CONTEXT 🎀

SELinux defines the file context types for the qmail_queue, 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 qmail_queue_exec_t '/srv/qmail_queue/content(/.*)?'
restorecon -R -v /srv/myqmail_queue_content

two steps bestie: tell the database, then actually apply it to disk 💖

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

The following file types are defined for qmail_queue:

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

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 chcon = temporary lil touch-up, semanage fcontext = the real permanent glow-up, and restorecon is what actually puts it on disk. don't skip the last step or it's giving nothing 💀

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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.

that's your whole toolkit, go be a main character with it 👑

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👩‍💻 AUTHOR 👩‍💻

This manual page was auto-generated using sepolicy manpage. auto-generated but still cute, we respect the pipeline 🫶

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👀 SEE ALSO 👀

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

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and that's the whole page bestie!! 🌈 the footer tea: this is qmail_queue, dated 26-10-06, and it belongs to the qmail_queue_selinux(8) manual — go forth and label responsibly 💖✨🎀