1traceroute_selinux(8) SELinux Policy traceroute traceroute_selinux(8)
2
6 traceroute_selinux - Security Enhanced Linux Policy for the traceroute
7 processes
8
10 Security-Enhanced Linux secures the traceroute processes via flexible
11 mandatory access control.
12 The traceroute processes execute with the traceroute_t SELinux type.
14 You can check if you have these processes running by executing the ps
15 command with the -Z qualifier.
16 For example:
18 ps -eZ | grep traceroute_t
20
24 The traceroute_t SELinux type can be entered via the traceroute_exec_t
25 file type.
26 The default entrypoint paths for the traceroute_t domain are the fol‐
28 lowing:
29 /bin/tracepath.*, /bin/traceroute.*, /usr/bin/tracepath.*,
31 /usr/bin/traceroute.*, /usr/sbin/traceroute.*, /usr/bin/lft,
32 /usr/bin/mtr, /usr/bin/nmap, /usr/sbin/mtr
33
35 SELinux defines process types (domains) for each process running on the
36 system
37 You can see the context of a process using the -Z option to ps
39 Policy governs the access confined processes have to files. SELinux
41 traceroute policy is very flexible allowing users to setup their
42 traceroute processes in as secure a method as possible.
43 The following process types are defined for traceroute:
45 traceroute_t
47 Note: semanage permissive -a traceroute_t can be used to make the
49 process type traceroute_t permissive. SELinux does not deny access to
50 permissive process types, but the AVC (SELinux denials) messages are
51 still generated.
52
55 SELinux policy is customizable based on least access required. tracer‐
56 oute policy is extremely flexible and has several booleans that allow
57 you to manipulate the policy and run traceroute with the tightest ac‐
58 cess possible.
59 If you want to allow all domains to execute in fips_mode, you must turn
63 on the fips_mode boolean. Enabled by default.
64 setsebool -P fips_mode 1
66 If you want to allow system to run with NIS, you must turn on the
70 nis_enabled boolean. Disabled by default.
71 setsebool -P nis_enabled 1
73 If you want to allow confined users the ability to execute the ping and
77 traceroute commands, you must turn on the selinuxuser_ping boolean. En‐
78 abled by default.
79 setsebool -P selinuxuser_ping 1
81
85 SELinux defines port types to represent TCP and UDP ports.
86 You can see the types associated with a port by using the following
88 command:
89 semanage port -l
91 Policy governs the access confined processes have to these ports.
94 SELinux traceroute policy is very flexible allowing users to setup
95 their traceroute processes in as secure a method as possible.
96 The following port types are defined for traceroute:
98 traceroute_port_t
101 Default Defined Ports:
105 udp 64000-64010
106
108 The SELinux process type traceroute_t can manage files labeled with the
109 following file types. The paths listed are the default paths for these
110 file types. Note the processes UID still need to have DAC permissions.
111 krb5_host_rcache_t
113 /var/tmp/krb5_0.rcache2
115 /var/cache/krb5rcache(/.*)?
116 /var/tmp/nfs_0
117 /var/tmp/DNS_25
118 /var/tmp/host_0
119 /var/tmp/imap_0
120 /var/tmp/HTTP_23
121 /var/tmp/HTTP_48
122 /var/tmp/ldap_55
123 /var/tmp/ldap_487
124 /var/tmp/ldapmap1_0
125
128 SELinux requires files to have an extended attribute to define the file
129 type.
130 You can see the context of a file using the -Z option to ls
132 Policy governs the access confined processes have to these files.
134 SELinux traceroute policy is very flexible allowing users to setup
135 their traceroute processes in as secure a method as possible.
136 STANDARD FILE CONTEXT
138 SELinux defines the file context types for the traceroute, if you
140 wanted to store files with these types in a different paths, you need
141 to execute the semanage command to specify alternate labeling and then
142 use restorecon to put the labels on disk.
143 semanage fcontext -a -t traceroute_exec_t '/srv/traceroute/con‐
145 tent(/.*)?'
146 restorecon -R -v /srv/mytraceroute_content
147 Note: SELinux often uses regular expressions to specify labels that
149 match multiple files.
150 The following file types are defined for traceroute:
152 traceroute_exec_t
156 - Set files with the traceroute_exec_t type, if you want to transition
158 an executable to the traceroute_t domain.
159 Paths:
162 /bin/tracepath.*, /bin/traceroute.*, /usr/bin/tracepath.*,
163 /usr/bin/traceroute.*, /usr/sbin/traceroute.*, /usr/bin/lft,
164 /usr/bin/mtr, /usr/bin/nmap, /usr/sbin/mtr
165 Note: File context can be temporarily modified with the chcon command.
168 If you want to permanently change the file context you need to use the
169 semanage fcontext command. This will modify the SELinux labeling data‐
170 base. You will need to use restorecon to apply the labels.
171
174 semanage fcontext can also be used to manipulate default file context
175 mappings.
176 semanage permissive can also be used to manipulate whether or not a
178 process type is permissive.
179 semanage module can also be used to enable/disable/install/remove pol‐
181 icy modules.
182 semanage port can also be used to manipulate the port definitions
184 semanage boolean can also be used to manipulate the booleans
186 system-config-selinux is a GUI tool available to customize SELinux pol‐
189 icy settings.
190
193 This manual page was auto-generated using sepolicy manpage .
194
197 selinux(8), traceroute(8), semanage(8), restorecon(8), chcon(1), sepol‐
198 icy(8), setsebool(8)
199traceroute 23-10-20 traceroute_selinux(8)