1watchdog_unconfined_selSiEnLuixn(u8x)Policy watchdog_uncwoantfcihndeodg_unconfined_selinux(8)
2
6 watchdog_unconfined_selinux - Security Enhanced Linux Policy for the
7 watchdog_unconfined processes
8
10 Security-Enhanced Linux secures the watchdog_unconfined processes via
11 flexible mandatory access control.
12 The watchdog_unconfined processes execute with the watchdog_uncon‐
14 fined_t SELinux type. You can check if you have these processes running
15 by executing the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep watchdog_unconfined_t
20
24 The watchdog_unconfined_t SELinux type can be entered via the watch‐
25 dog_unconfined_exec_t file type.
26 The default entrypoint paths for the watchdog_unconfined_t domain are
28 the following:
29 /etc/watchdog.d(/.*)?, /usr/libexec/watchdog/scripts(/.*)?
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 watchdog_unconfined policy is very flexible allowing users to setup
40 their watchdog_unconfined processes in as secure a method as possible.
41 The following process types are defined for watchdog_unconfined:
43 watchdog_unconfined_t
45 Note: semanage permissive -a watchdog_unconfined_t can be used to make
47 the process type watchdog_unconfined_t permissive. SELinux does not
48 deny access to permissive process types, but the AVC (SELinux denials)
49 messages are still generated.
50
53 SELinux policy is customizable based on least access required. watch‐
54 dog_unconfined policy is extremely flexible and has several booleans
55 that allow you to manipulate the policy and run watchdog_unconfined
56 with the tightest access possible.
57 If you want to deny user domains applications to map a memory region as
61 both executable and writable, this is dangerous and the executable
62 should be reported in bugzilla, you must turn on the deny_execmem bool‐
63 ean. Disabled by default.
64 setsebool -P deny_execmem 1
66 If you want to control the ability to mmap a low area of the address
70 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
71 the mmap_low_allowed boolean. Disabled by default.
72 setsebool -P mmap_low_allowed 1
74 If you want to disable kernel module loading, you must turn on the se‐
78 cure_mode_insmod boolean. Disabled by default.
79 setsebool -P secure_mode_insmod 1
81 If you want to allow unconfined executables to make their heap memory
85 executable. Doing this is a really bad idea. Probably indicates a
86 badly coded executable, but could indicate an attack. This executable
87 should be reported in bugzilla, you must turn on the selinuxuser_ex‐
88 echeap boolean. Disabled by default.
89 setsebool -P selinuxuser_execheap 1
91 If you want to allow unconfined executables to make their stack exe‐
95 cutable. This should never, ever be necessary. Probably indicates a
96 badly coded executable, but could indicate an attack. This executable
97 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
98 stack boolean. Enabled by default.
99 setsebool -P selinuxuser_execstack 1
101
105 The SELinux process type watchdog_unconfined_t can manage files labeled
106 with the following file types. The paths listed are the default paths
107 for these file types. Note the processes UID still need to have DAC
108 permissions.
109 file_type
111 all files on the system
113
116 SELinux requires files to have an extended attribute to define the file
117 type.
118 You can see the context of a file using the -Z option to ls
120 Policy governs the access confined processes have to these files.
122 SELinux watchdog_unconfined policy is very flexible allowing users to
123 setup their watchdog_unconfined processes in as secure a method as pos‐
124 sible.
125 STANDARD FILE CONTEXT
127 SELinux defines the file context types for the watchdog_unconfined, if
129 you wanted to store files with these types in a different paths, you
130 need to execute the semanage command to specify alternate labeling and
131 then use restorecon to put the labels on disk.
132 semanage fcontext -a -t watchdog_unconfined_exec_t '/srv/watchdog_un‐
134 confined/content(/.*)?'
135 restorecon -R -v /srv/mywatchdog_unconfined_content
136 Note: SELinux often uses regular expressions to specify labels that
138 match multiple files.
139 The following file types are defined for watchdog_unconfined:
141 watchdog_unconfined_exec_t
145 - Set files with the watchdog_unconfined_exec_t type, if you want to
147 transition an executable to the watchdog_unconfined_t domain.
148 Paths:
151 /etc/watchdog.d(/.*)?, /usr/libexec/watchdog/scripts(/.*)?
152 Note: File context can be temporarily modified with the chcon command.
155 If you want to permanently change the file context you need to use the
156 semanage fcontext command. This will modify the SELinux labeling data‐
157 base. You will need to use restorecon to apply the labels.
158
161 semanage fcontext can also be used to manipulate default file context
162 mappings.
163 semanage permissive can also be used to manipulate whether or not a
165 process type is permissive.
166 semanage module can also be used to enable/disable/install/remove pol‐
168 icy modules.
169 semanage boolean can also be used to manipulate the booleans
171 system-config-selinux is a GUI tool available to customize SELinux pol‐
174 icy settings.
175
178 This manual page was auto-generated using sepolicy manpage .
179
182 selinux(8), watchdog_unconfined(8), semanage(8), restorecon(8),
183 chcon(1), sepolicy(8), setsebool(8)
184watchdog_unconfined 23-10-20 watchdog_unconfined_selinux(8)