traceroute_selinux(8)

✨ traceroute_selinux(8) ✨

okay so bestie, welcome to the manual page for traceroute_selinux — it's the SELinux Policy for the traceroute processes, and honestly? it's giving security queen. let's get into it 💅

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🌸 NAME 🌸

traceroute_selinux — Security Enhanced Linux Policy for the traceroute processes

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🦋 DESCRIPTION 🦋

Security-Enhanced Linux secures the traceroute processes via flexible mandatory access control. no cap, it's out here protecting your system with vibes and rules.

The traceroute processes execute with the traceroute_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 traceroute_t

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🎀 ENTRYPOINTS 🎀

The traceroute_t SELinux type can be entered via the traceroute_exec_t file type.

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

/usr/bin/tracepath.*, /usr/bin/traceroute.*, /usr/bin/lft, /usr/bin/mtr, /usr/bin/nmap

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👑 PROCESS TYPES 👑

SELinux defines process types (domains) for each process running on the system. it's a whole thing.

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

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

The following process types are defined for traceroute:

traceroute_t

Note: semanage permissive -a traceroute_t can be used to make the process type traceroute_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated. so like, it's not a free pass, just a vibe check that still tattles 😭

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🔥 BOOLEANS 🔥

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

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

If you want to allow confined users the ability to execute the ping and traceroute commands, you must turn on the selinuxuser_ping boolean. Disabled by default.

setsebool -P selinuxuser_ping 1

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🌈 PORT TYPES 🌈

SELinux defines port types to represent TCP and UDP ports. it's giving network realness.

You can see the types associated with a port by using the following command:

semanage port -l

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

The following port types are defined for traceroute:

traceroute_port_t

Default Defined Ports:

udp 64000-64010

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💜 MANAGED FILES 💜

The SELinux process type traceroute_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, SELinux isn't doing everything for you, bestie.

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

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🧚 FILE CONTEXTS 🧚

SELinux requires files to have an extended attribute to define the file type. it's extra like that.

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

⭐ STANDARD FILE CONTEXT ⭐

SELinux defines the file context types for the traceroute, 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 traceroute_exec_t '/srv/traceroute/content(/.*)?'
restorecon -R -v /srv/mytraceroute_content

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

The following file types are defined for traceroute:

traceroute_exec_t

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

Paths:

/usr/bin/tracepath.*, /usr/bin/traceroute.*, /usr/bin/lft,
/usr/bin/mtr, /usr/bin/nmap

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 and semanage fcontext + restorecon is the permanent slay 💅

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💀 COMMANDS 💀

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

semanage permissive can also be used to manipulate whether or not a process type is permissive. the way it just controls things.

semanage module can also be used to enable/disable/install/remove policy modules. modular realness.

semanage port can also be used to manipulate the port definitions. port queen behavior.

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

system-config-selinux is a GUI tool available to customize SELinux policy settings. for the visual learners, we love to see it 🖥️✨

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🫶 AUTHOR 🫶

This manual page was auto-generated using sepolicy manpage. not me being born from a command 😭

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🌟 SEE ALSO 🌟

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

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okay that's the tea! this page is from traceroute_selinux(8) in the traceroute package, version 26-10-06, dated 26-10-06. stay secure, bestie 💖✨💅