rpcbind_selinux(8)

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

🌸 rpcbind_selinux(8) — the SELinux glow-up for your rpcbind processes 💅

okay so bestie, this is the rpcbind_selinux manual page (section 8, we stan a sysadmin section), and it's all about the SELinux policy that keeps your rpcbind processes behaving. pull up a chair, grab a strawberry 🍓, and let's get into it.

✨ NAME ✨

rpcbind_selinux — the Security Enhanced Linux Policy for the rpcbind processes. literally that's the whole vibe.

🦋 DESCRIPTION 🦋

Security-Enhanced Linux secures the rpcbind processes via flexible mandatory access control. yes, flexible AND mandatory, she contains multitudes.

The rpcbind processes execute with the rpcbind_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 rpcbind_t

🎀 ENTRYPOINTS 🎀

The rpcbind_t SELinux type can be entered via the rpcbind_exec_t file type. that's the doorway, the velvet rope, the whole thing.

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

/usr/bin/rpcbind

👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. it's giving very organized.

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

The following process types are defined for rpcbind:

rpcbind_t
Note: semanage permissive -a rpcbind_t can be used to make the process type rpcbind_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, she's off duty but she's still taking notes 📝

🌈 BOOLEANS 🌈

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

  • 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 rpcbind_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. SELinux isn't doing everything for you, bestie, she's just doing her part 💜

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

root_t

/sysroot/.aleph-version.json
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
/var/lib/ntp

rpcbind_tmp_t

(no default paths listed here, she's mysterious like that 🙈)

rpcbind_var_lib_t

/var/lib/rpcbind(/.*)?
/var/cache/rpcbind(/.*)?

rpcbind_var_run_t

/run/rpc.statd.pid
/run/rpcbind.*

💖 FILE CONTEXTS 💖

SELinux requires files to have an extended attribute to define the file type. yes, every file has a little name tag 🏷️

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 rpcbind policy is very flexible allowing users to setup their rpcbind processes in as secure a method as possible. iconic, honestly.

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the rpcbind, 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 apartment but keeping your ✨aesthetic✨.

semanage fcontext -a -t rpcbind_exec_t '/srv/rpcbind/content(/.*)?'
restorecon -R -v /srv/myrpcbind_content
Note: SELinux often uses regular expressions to specify labels that match multiple files. regex girlies rise 😭

The following file types are defined for rpcbind:

rpcbind_exec_t

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

rpcbind_initrc_exec_t

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

rpcbind_tmp_t

  • Set files with the rpcbind_tmp_t type, if you want to store rpcbind temporary files in the /tmp directories.

rpcbind_unit_file_t

  • Set files with the rpcbind_unit_file_t type, if you want to treat the files as rpcbind unit content.

rpcbind_var_lib_t

  • Set files with the rpcbind_var_lib_t type, if you want to store the rpcbind files under the /var/lib directory.

Paths:

/var/lib/rpcbind(/.*)?, /var/cache/rpcbind(/.*)?

rpcbind_var_run_t

  • Set files with the rpcbind_var_run_t type, if you want to store the rpcbind files under the /run or /var/run directory.

Paths:

/run/rpc.statd.pid, /run/rpcbind.*
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 your fighter 🥊

🫶 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, a GUI, for when clicking > typing 💅

💀 AUTHOR 💀

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

🌸 SEE ALSO 🌸

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

and that's the whole page, bestie 🎀 this one came from the rpcbind package, dated 26-10-06, and it's the rpcbind_selinux(8) manual page. slay ✨

📦 where this page comes from