mysqld_safe_selinux(8)

💅 mysqld_safe_selinux — the SELinux glow-up for your mysqld_safe processes ✨

okay bestie, so you're here because of the mysqld_safe_selinux(8) page — this is the manual, section 8, all about the SELinux policy for mysqld_safe. Let's get into it 🫶

---

🌸 NAME 🌸

mysqld_safe_selinux — the Security Enhanced Linux Policy for the mysqld_safe processes 💖

---

✨ DESCRIPTION ✨

Security-Enhanced Linux secures the mysqld_safe processes via flexible mandatory access control. no cap, that's the whole vibe 🔥

The mysqld_safe processes execute with the mysqld_safe_t SELinux type. wanna check if you've got these processes running? just run the ps command with the -Z qualifier. easy.

For example:

ps -eZ | grep mysqld_safe_t

literally that's it 🎀

---

🦋 ENTRYPOINTS 🦋

The mysqld_safe_t SELinux type can be entered via the mysqld_safe_exec_t file type. that's the doorway, iykyk 🚪✨

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

/usr/bin/mysqld_safe, /usr/bin/mariadbd-safe, /usr/libexec/mysqld_safe-scl-helper

---

👑 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 mysqld_safe policy is very flexible, allowing users to setup their mysqld_safe processes in as secure a method as possible. main character policy energy fr fr 🌈

The following process types are defined for mysqld_safe:

• mysqld_safe_t

Note: semanage permissive -a mysqld_safe_t can be used to make the process type mysqld_safe_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. 👀 like it won't block you but it's still gonna gossip about you in the logs 💀

---

🍓 BOOLEANS 🍓

SELinux policy is customizable based on least access required. the mysqld_safe policy is extremely flexible and has several booleans that allow you to manipulate the policy and run mysqld_safe with the tightest access possible. tightest access = the look, periodt 💅

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

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

---

🧚 MANAGED FILES 🧚

The SELinux process type mysqld_safe_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 doesn't do everything for you 🙈

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

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

mysqld_db_t

/var/lib/mysql(-files|-keyring)?(/.*)?
/var/lib/mysql-.*(/.*)?

mysqld_log_t

/var/log/mysql.*
/var/log/mysql(/.*)?
/var/log/mariadb(/.*)?

mysqld_var_run_t

/run/mysql(/.*)?
/run/mysqld(/.*)?
/run/mariadb(/.*)?
/var/lib/mysql-.*/mysql(x)?.sock
/var/lib/mysql/mysql(x)?.sock
/var/tmp/mysql-protected.*(/.*)?

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. it's giving ✨organized✨

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 mysqld_safe policy is very flexible, allowing users to setup their mysqld_safe processes in as secure a method as possible. same energy as before, still iconic 🌟

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the mysqld_safe. 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. like moving into a new place and putting up your own labels, cute 🎀

semanage fcontext -a -t mysqld_safe_exec_t '/srv/mysqld_safe/content(/.*)?'
restorecon -R -v /srv/mymysqld_safe_content

Note: SELinux often uses regular expressions to specify labels that match multiple files. regex my beloved 😭

The following file types are defined for mysqld_safe:

mysqld_safe_exec_t

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

Paths:

/usr/bin/mysqld_safe, /usr/bin/mariadbd-safe, /usr/libexec/mysqld_safe-scl-helper

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 is the quick fix, semanage fcontext + restorecon is the commitment 💍

---

🎀 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 bestie, there's a GUI if the terminal life isn't your vibe 🖥️✨

---

🌈 AUTHOR 🌈

This manual page was auto-generated using sepolicy manpage. not me being auto-generated 💀

---

🦋 SEE ALSO 🦋

selinux(8), mysqld_safe(8), semanage(8), restorecon(8), chcon(1), sepolicy(8), setsebool(8) — go read these next, bestie, they're all part of the lore 📚💖

---

k that's the whole page!! this one was brought to you by mysqld_safe, version 26-10-06, dated 26-10-06, and it lives at mysqld_safe_selinux(8) in section 8. mwah, love u, go label some files 💋💅✨