1mythtv_script_selinux(8) SELinux Policy mythtv_script mythtv_script_selinux(8)
2
6 mythtv_script_selinux - Security Enhanced Linux Policy for the
7 mythtv_script processes
8
10 Security-Enhanced Linux secures the mythtv_script processes via flexi‐
11 ble mandatory access control.
12 The mythtv_script processes execute with the mythtv_script_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep mythtv_script_t
20
24 The mythtv_script_t SELinux type can be entered via the shell_exec_t,
25 mythtv_script_exec_t, mythtv_script_exec_t file types.
26 The default entrypoint paths for the mythtv_script_t domain are the
28 following:
29 /bin/d?ash, /bin/zsh.*, /bin/ksh.*, /usr/bin/d?ash, /usr/bin/ksh.*,
31 /usr/bin/zsh.*, /bin/esh, /bin/mksh, /bin/sash, /bin/tcsh, /bin/yash,
32 /bin/bash, /bin/fish, /bin/bash2, /usr/bin/esh, /usr/bin/sash,
33 /usr/bin/tcsh, /usr/bin/yash, /usr/bin/mksh, /usr/bin/fish,
34 /usr/bin/bash, /sbin/nologin, /usr/sbin/sesh, /usr/bin/bash2,
35 /usr/sbin/smrsh, /usr/bin/scponly, /usr/sbin/nologin,
36 /usr/libexec/sesh, /usr/sbin/scponlyc, /usr/bin/git-shell,
37 /usr/libexec/sudo/sesh, /usr/bin/cockpit-bridge, /usr/libexec/cockpit-
38 agent, /usr/libexec/git-core/git-shell, /usr/share/mythtv/myth‐
39 weather/scripts(/.*)?, /usr/share/mythweb/mythweb.pl,
40 /usr/share/mythtv/mythweather/scripts(/.*)?, /usr/share/mythweb/myth‐
41 web.pl
42
44 SELinux defines process types (domains) for each process running on the
45 system
46 You can see the context of a process using the -Z option to ps
48 Policy governs the access confined processes have to files. SELinux
50 mythtv_script policy is very flexible allowing users to setup their
51 mythtv_script processes in as secure a method as possible.
52 The following process types are defined for mythtv_script:
54 mythtv_script_t
56 Note: semanage permissive -a mythtv_script_t can be used to make the
58 process type mythtv_script_t permissive. SELinux does not deny access
59 to permissive process types, but the AVC (SELinux denials) messages are
60 still generated.
61
64 SELinux policy is customizable based on least access required.
65 mythtv_script policy is extremely flexible and has several booleans
66 that allow you to manipulate the policy and run mythtv_script with the
67 tightest access possible.
68 If you want to deny any process from ptracing or debugging any other
72 processes, you must turn on the deny_ptrace boolean. Enabled by
73 default.
74 setsebool -P deny_ptrace 1
76 If you want to allow any process to mmap any file on system with
80 attribute file_type, you must turn on the domain_can_mmap_files bool‐
81 ean. Enabled by default.
82 setsebool -P domain_can_mmap_files 1
84 If you want to allow all domains write to kmsg_device, while kernel is
88 executed with systemd.log_target=kmsg parameter, you must turn on the
89 domain_can_write_kmsg boolean. Disabled by default.
90 setsebool -P domain_can_write_kmsg 1
92 If you want to allow all domains to use other domains file descriptors,
96 you must turn on the domain_fd_use boolean. Enabled by default.
97 setsebool -P domain_fd_use 1
99 If you want to allow all domains to have the kernel load modules, you
103 must turn on the domain_kernel_load_modules boolean. Disabled by
104 default.
105 setsebool -P domain_kernel_load_modules 1
107 If you want to allow all domains to execute in fips_mode, you must turn
111 on the fips_mode boolean. Enabled by default.
112 setsebool -P fips_mode 1
114 If you want to enable reading of urandom for all domains, you must turn
118 on the global_ssp boolean. Disabled by default.
119 setsebool -P global_ssp 1
121 If you want to allow httpd cgi support, you must turn on the
125 httpd_enable_cgi boolean. Disabled by default.
126 setsebool -P httpd_enable_cgi 1
128 If you want to allow system to run with NIS, you must turn on the
132 nis_enabled boolean. Disabled by default.
133 setsebool -P nis_enabled 1
135
139 The SELinux process type mythtv_script_t can manage files labeled with
140 the following file types. The paths listed are the default paths for
141 these file types. Note the processes UID still need to have DAC per‐
142 missions.
143 mythtv_rw_content_t
145 mythtv_var_lib_t
148 /var/lib/mythtv(/.*)?
150 mythtv_var_log_t
152 /var/log/mythtv(/.*)?
154
157 SELinux requires files to have an extended attribute to define the file
158 type.
159 You can see the context of a file using the -Z option to ls
161 Policy governs the access confined processes have to these files.
163 SELinux mythtv_script policy is very flexible allowing users to setup
164 their mythtv_script processes in as secure a method as possible.
165 The following file types are defined for mythtv_script:
167 mythtv_script_exec_t
171 - Set files with the mythtv_script_exec_t type, if you want to transi‐
173 tion an executable to the mythtv_script_t domain.
174 Paths:
177 /usr/share/mythtv/mythweather/scripts(/.*)?, /usr/share/myth‐
178 web/mythweb.pl
179 Note: File context can be temporarily modified with the chcon command.
182 If you want to permanently change the file context you need to use the
183 semanage fcontext command. This will modify the SELinux labeling data‐
184 base. You will need to use restorecon to apply the labels.
185
188 semanage fcontext can also be used to manipulate default file context
189 mappings.
190 semanage permissive can also be used to manipulate whether or not a
192 process type is permissive.
193 semanage module can also be used to enable/disable/install/remove pol‐
195 icy modules.
196 semanage boolean can also be used to manipulate the booleans
198 system-config-selinux is a GUI tool available to customize SELinux pol‐
201 icy settings.
202
205 This manual page was auto-generated using sepolicy manpage .
206
209 selinux(8), mythtv_script(8), semanage(8), restorecon(8), chcon(1),
210 sepolicy(8) , setsebool(8)
211mythtv_script 19-04-25 mythtv_script_selinux(8)