rssh_selinux(8)

💅 rssh_selinux(8) — SELinux Policy for the rssh processes

okay so bestie, this is the rssh_selinux page from section 8 of the manual, and it's literally all about the Security Enhanced Linux policy for the rssh processes. pull up a chair, we're getting into it 🎀

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✨ NAME ✨

rssh_selinux — Security Enhanced Linux Policy for the rssh processes

like, that's the whole vibe. SELinux, but make it rssh 🦋

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🌸 DESCRIPTION 🌸

Security-Enhanced Linux secures the rssh processes via flexible mandatory access control. yes queen, mandatory access control, not the optional kind 🙈

The rssh processes execute with the rssh_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 rssh_t

that's it, that's the vibe check 🔥

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👑 ENTRYPOINTS 👑

The rssh_t SELinux type can be entered via the rssh_exec_t file type. that's the door, that's the entry, no cap 🚪✨

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

/usr/bin/rssh

one path, one icon, we love to see it 💅

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🧚 PROCESS TYPES 🧚

SELinux defines process types (domains) for each process running on the system. every process gets a 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 rssh policy is very flexible allowing users to setup their rssh processes in as secure a method as possible.

The following process types are defined for rssh:

• rssh_t
• rssh_chroot_helper_t

Note: semanage permissive -a rssh_t can be used to make the process type rssh_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it won't block you, but it WILL be taking notes 📝💀

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🍓 BOOLEANS 🍓

SELinux policy is customizable based on least access required. rssh policy is extremely flexible and has several booleans that allow you to manipulate the policy and run rssh with the tightest access possible. least privilege but make it cute 🎀

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

iykyk 😌

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🌈 MANAGED FILES 🌈

The SELinux process type rssh_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. like, SELinux isn't gonna do your DAC homework for you bestie 💀

• rssh_rw_t

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🦋 FILE CONTEXTS 🦋

SELinux requires files to have an extended attribute to define the file type. yes, files have labels now, we're fancy ✨

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

🌟 STANDARD FILE CONTEXT

SELinux defines the file context types for the rssh, 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 rssh_exec_t '/srv/rssh/content(/.*)?'
restorecon -R -v /srv/myrssh_content

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

The following file types are defined for rssh:

rssh_chroot_helper_exec_t

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

rssh_exec_t

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

rssh_ro_t

• Set files with the rssh_ro_t type, if you want to treat the files as rssh read/only content.

rssh_rw_t

• Set files with the rssh_rw_t type, if you want to treat the files as rssh read/write 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, 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. a whole GUI, for the girls who like clicking 💅

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🫶 AUTHOR 🫶

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

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💖 SEE ALSO 💖

selinux(8), rssh(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8), rssh_chroot_helper_selinux(8), rssh_chroot_helper_selinux(8)

(yes, rssh_chroot_helper_selinux(8) is listed twice in the original — twice the icon, twice the slay 👑👑)

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and that's the page babes! 🎀 this one came from the rssh manual, dated 26-10-06, version rssh — go forth and label responsibly, mwah 💋🌸