1ypserv_selinux(8) SELinux Policy ypserv ypserv_selinux(8)
2
6 ypserv_selinux - Security Enhanced Linux Policy for the ypserv pro‐
7 cesses
8
10 Security-Enhanced Linux secures the ypserv processes via flexible
11 mandatory access control.
12 The ypserv processes execute with the ypserv_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
16 For example:
18 ps -eZ | grep ypserv_t
20
24 The ypserv_t SELinux type can be entered via the ypserv_exec_t file
25 type.
26 The default entrypoint paths for the ypserv_t domain are the following:
28 /usr/sbin/ypserv
30
32 SELinux defines process types (domains) for each process running on the
33 system
34 You can see the context of a process using the -Z option to ps
36 Policy governs the access confined processes have to files. SELinux
38 ypserv policy is very flexible allowing users to setup their ypserv
39 processes in as secure a method as possible.
40 The following process types are defined for ypserv:
42 ypserv_t
44 Note: semanage permissive -a ypserv_t can be used to make the process
46 type ypserv_t permissive. SELinux does not deny access to permissive
47 process types, but the AVC (SELinux denials) messages are still gener‐
48 ated.
49
52 SELinux policy is customizable based on least access required. ypserv
53 policy is extremely flexible and has several booleans that allow you to
54 manipulate the policy and run ypserv with the tightest access possible.
55 If you want to allow all domains to execute in fips_mode, you must turn
59 on the fips_mode boolean. Enabled by default.
60 setsebool -P fips_mode 1
62
66 The SELinux process type ypserv_t can manage files labeled with the
67 following file types. The paths listed are the default paths for these
68 file types. Note the processes UID still need to have DAC permissions.
69 cluster_conf_t
71 /etc/cluster(/.*)?
73 cluster_var_lib_t
75 /var/lib/pcsd(/.*)?
77 /var/lib/cluster(/.*)?
78 /var/lib/openais(/.*)?
79 /var/lib/pengine(/.*)?
80 /var/lib/corosync(/.*)?
81 /usr/lib/heartbeat(/.*)?
82 /var/lib/heartbeat(/.*)?
83 /var/lib/pacemaker(/.*)?
84 cluster_var_run_t
86 /var/run/crm(/.*)?
88 /var/run/cman_.*
89 /var/run/rsctmp(/.*)?
90 /var/run/aisexec.*
91 /var/run/heartbeat(/.*)?
92 /var/run/corosync-qnetd(/.*)?
93 /var/run/corosync-qdevice(/.*)?
94 /var/run/corosync.pid
95 /var/run/cpglockd.pid
96 /var/run/rgmanager.pid
97 /var/run/cluster/rgmanager.sk
98 root_t
100 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
102 /
103 /initrd
104 var_yp_t
106 /var/yp(/.*)?
108 ypserv_tmp_t
110 ypserv_var_run_t
113 /var/run/ypserv.*
115
118 SELinux requires files to have an extended attribute to define the file
119 type.
120 You can see the context of a file using the -Z option to ls
122 Policy governs the access confined processes have to these files.
124 SELinux ypserv policy is very flexible allowing users to setup their
125 ypserv processes in as secure a method as possible.
126 STANDARD FILE CONTEXT
128 SELinux defines the file context types for the ypserv, if you wanted to
130 store files with these types in a diffent paths, you need to execute
131 the semanage command to sepecify alternate labeling and then use
132 restorecon to put the labels on disk.
133 semanage fcontext -a -t ypserv_var_run_t '/srv/myypserv_content(/.*)?'
135 restorecon -R -v /srv/myypserv_content
136 Note: SELinux often uses regular expressions to specify labels that
138 match multiple files.
139 The following file types are defined for ypserv:
141 ypserv_conf_t
145 - Set files with the ypserv_conf_t type, if you want to treat the files
147 as ypserv configuration data, usually stored under the /etc directory.
148 ypserv_exec_t
152 - Set files with the ypserv_exec_t type, if you want to transition an
154 executable to the ypserv_t domain.
155 ypserv_tmp_t
159 - Set files with the ypserv_tmp_t type, if you want to store ypserv
161 temporary files in the /tmp directories.
162 ypserv_var_run_t
166 - Set files with the ypserv_var_run_t type, if you want to store the
168 ypserv files under the /run or /var/run directory.
169 Note: File context can be temporarily modified with the chcon command.
173 If you want to permanently change the file context you need to use the
174 semanage fcontext command. This will modify the SELinux labeling data‐
175 base. You will need to use restorecon to apply the labels.
176
179 semanage fcontext can also be used to manipulate default file context
180 mappings.
181 semanage permissive can also be used to manipulate whether or not a
183 process type is permissive.
184 semanage module can also be used to enable/disable/install/remove pol‐
186 icy modules.
187 semanage boolean can also be used to manipulate the booleans
189 system-config-selinux is a GUI tool available to customize SELinux pol‐
192 icy settings.
193
196 This manual page was auto-generated using sepolicy manpage .
197
200 selinux(8), ypserv(8), semanage(8), restorecon(8), chcon(1), sepol‐
201 icy(8), setsebool(8)
202ypserv 19-12-02 ypserv_selinux(8)