sysstat_selinux(8)

📦
version 20250627+git412.dbf877ab7 · 7 versions
, in opensuse-leap 16.0

✨ sysstat_selinux(8) — the bestie guide to keeping sysstat safe 💅

Okay so like, this is the sysstat_selinux(8) manual page, and honestly? It's giving security but make it cute. We're talking SELinux policy for all the sysstat processes, and I'm gonna walk you through every single detail so you're not out here confused. Periodt. 🫶

🎀 NAME

sysstat_selinux — Security Enhanced Linux Policy for the sysstat processes. That's it, that's the name, and it's lowkey iconic.

🌸 DESCRIPTION

Security-Enhanced Linux secures the sysstat processes via flexible mandatory access control. Fr fr, it's not playing around. 🔥

The sysstat processes execute with the sysstat_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 sysstat_t

See? Easy peasy. Just check your vibes (and your process types) with that one-liner. ✨

🦋 ENTRYPOINTS

The sysstat_t SELinux type can be entered via the sysstat_exec_t file type. It's like the VIP entrance but for processes. 👑

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

  • /usr/lib/sa/sa.*
  • /usr/lib/atsar/atsa.*
  • /usr/lib/sysstat/sa.*

These are the spots where the magic happens, bestie. 🌈

💜 PROCESS TYPES

SELinux defines process types (domains) for each process running on the system. It's very organized like that. 💅

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

Policy governs the access confined processes have to files. SELinux sysstat policy is very flexible allowing users to setup their sysstat processes in as secure a method as possible.

The following process types are defined for sysstat:

  • sysstat_t
Note: semanage permissive -a sysstat_t can be used to make the process type sysstat_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. So like, it's still watching you. 👀

🌸 BOOLEANS

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

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

That's it, that's the boolean tea. 🍓

🐚 MANAGED FILES

The SELinux process type sysstat_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. So like, you still need the normal permissions too, bestie. No shortcuts. 😭

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

sysstat_log_t

  • /var/log/sa(/.*)?
  • /opt/sartest(/.*)?
  • /var/log/atsar(/.*)?
  • /var/log/sysstat(/.*)?

sysstat_var_run_t

  • /var/run/sysstat(/.*)?

These are all the places sysstat_t can manage, and yes, every single path is listed. No gatekeeping. 💅

🎀 FILE CONTEXTS

SELinux requires files to have an extended attribute to define the file type. It's like every file has a little ID card. 🪪

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 sysstat policy is very flexible allowing users to setup their sysstat processes in as secure a method as possible. (Yes, they said it again, it's really that flexible. 💜)

✨ STANDARD FILE CONTEXT ✨

SELinux defines the file context types for the sysstat, 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 sysstat_exec_t '/srv/sysstat/content(/.*)?'
restorecon -R -v /srv/mysysstat_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. Regex is giving main character energy here. 🔥

The following file types are defined for sysstat:

sysstat_exec_t

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

Paths:

  • /usr/lib/sa/sa.*
  • /usr/lib/atsar/atsa.*
  • /usr/lib/sysstat/sa.*

sysstat_initrc_exec_t

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

sysstat_log_t

  • Set files with the sysstat_log_t type, if you want to treat the data as sysstat log data, usually stored under the /var/log directory.

Paths:

  • /var/log/sa(/.*)?
  • /opt/sartest(/.*)?
  • /var/log/atsar(/.*)?
  • /var/log/sysstat(/.*)?

sysstat_var_run_t

  • Set files with the sysstat_var_run_t type, if you want to store the sysstat files under the /run or /var/run directory.
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 like, chcon is the quick fix, semanage fcontext + restorecon is the permanent glow-up. ✨

🌈 COMMANDS

semanage fcontext can also be used to manipulate default file context mappings. Slay.

semanage permissive can also be used to manipulate whether or not a process type is permissive. Iconic.

semanage module can also be used to enable/disable/install/remove policy modules. Very demure, very mindful. 💅

semanage boolean can also be used to manipulate the booleans. Periodt.

system-config-selinux is a GUI tool available to customize SELinux policy settings. For the besties who like clicking instead of typing. 🖱️✨

💖 AUTHOR

This manual page was auto-generated using sepolicy manpage. So like, not a human author, but still valid. 🤖💅

🫶 SEE ALSO

Go read those if you want the full lore. Iykyk. 📚✨

And that's the whole page, bestie. This was sysstat from 26-10-06, the sysstat_selinux(8) manual — auto-generated, security-approved, and now fully understood. You're welcome. 💖🎀🦋

📦 where this page comes from