COURIER_SQWEBMAIL_SELINUX(8)

💖 NAME 💖

Okay bestie, this is courier_sqwebmail_selinux(8) — literally the Security Enhanced Linux Policy for the courier_sqwebmail processes. 👑

✨ DESCRIPTION ✨

Security-Enhanced Linux secures the courier_sqwebmail processes via flexible mandatory access control. No cap, that's the whole vibe: flexible MAC doing its thing. 🔥

The courier_sqwebmail processes execute with the courier_sqwebmail_t SELinux type. Wanna check if you've got these processes running? Run the ps command with the -Z qualifier, like this:

ps -eZ | grep courier_sqwebmail_t

🚪 ENTRYPOINTS 🚪

The courier_sqwebmail_t SELinux type can be entered via the courier_sqwebmail_exec_t file type.

The default entrypoint paths for the courier_sqwebmail_t domain are literally these:

/usr/lib/courier/sqwebmail/cleancache.pl

🧚 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. The SELinux courier_sqwebmail policy is very flexible, allowing users to setup their courier_sqwebmail processes in as secure a method as possible.

The following process types are defined for courier_sqwebmail:

• courier_sqwebmail_t

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

🎚️ BOOLEANS 🎚️

SELinux policy is customizable based on least access required. The courier_sqwebmail policy is extremely flexible and has several booleans that allow you to manipulate the policy and run courier_sqwebmail with the tightest access possible.

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

🗂️ MANAGED FILES 🗂️

The SELinux process type courier_sqwebmail_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note: the process UID still needs to have DAC permissions. 💅

• 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
• courier_var_run_t
  • /run/courier(/.*)?
• root_t
  • /sysroot/.aleph-version.json
  • /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
  • /
  • /initrd
  • /var/lib/ntp

🏷️ 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. The SELinux courier_sqwebmail policy is very flexible, allowing users to setup their courier_sqwebmail processes in as secure a method as possible.

🎀 STANDARD FILE CONTEXT 🎀

SELinux defines the file context types for courier_sqwebmail, so if you wanted to store files with these types in different paths, you need to execute the semanage command to specify alternate labeling and then use restorecon to put the labels on disk. Like so:

semanage fcontext -a -t courier_sqwebmail_exec_t
'/srv/courier_sqwebmail/content(/.*)?'
restorecon -R -v /srv/mycourier_sqwebmail_content

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

The following file types are defined for courier_sqwebmail:

• courier_sqwebmail_exec_t — set files with the courier_sqwebmail_exec_t type if you want to transition an executable to the courier_sqwebmail_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. 😭

🛠️ 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. 🖥️✨

✍️ AUTHOR ✍️

This manual page was auto-generated using sepolicy manpage .

👀 SEE ALSO 👀

• selinux(8)
• courier_sqwebmail(8)
• semanage(8)
• restorecon(8)
• chcon(1)
• sepolicy(8)
• setsebool(8)

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k bye bestie 🫶💖 footer deets: source/version courier_sqwebmail, date 26-10-06, footer page name courier_...l_selinux(8). slay. 💅