1sshd_keygen_selinux(8) SELinux Policy sshd_keygen sshd_keygen_selinux(8)
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6 sshd_keygen_selinux - Security Enhanced Linux Policy for the sshd_key‐
7 gen processes
8
10 Security-Enhanced Linux secures the sshd_keygen processes via flexible
11 mandatory access control.
12 The sshd_keygen processes execute with the sshd_keygen_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 sshd_keygen_t
20
24 The sshd_keygen_t SELinux type can be entered via the sshd_key‐
25 gen_exec_t file type.
26 The default entrypoint paths for the sshd_keygen_t domain are the fol‐
28 lowing:
29 /usr/sbin/sshd-keygen, /usr/libexec/openssh/sshd-keygen
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 sshd_keygen policy is very flexible allowing users to setup their
40 sshd_keygen processes in as secure a method as possible.
41 The following process types are defined for sshd_keygen:
43 sshd_keygen_t
45 Note: semanage permissive -a sshd_keygen_t can be used to make the
47 process type sshd_keygen_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
53 SELinux policy is customizable based on least access required.
54 sshd_keygen policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run sshd_keygen with the tight‐
56 est access possible.
57 If you want to allow users to resolve user passwd entries directly from
61 ldap rather then using a sssd server, you must turn on the authlo‐
62 gin_nsswitch_use_ldap boolean. Disabled by default.
63 setsebool -P authlogin_nsswitch_use_ldap 1
65 If you want to allow all domains to execute in fips_mode, you must turn
69 on the fips_mode boolean. Enabled by default.
70 setsebool -P fips_mode 1
72 If you want to allow confined applications to run with kerberos, you
76 must turn on the kerberos_enabled boolean. Enabled by default.
77 setsebool -P kerberos_enabled 1
79 If you want to allow system to run with NIS, you must turn on the
83 nis_enabled boolean. Disabled by default.
84 setsebool -P nis_enabled 1
86 If you want to allow confined applications to use nscd shared memory,
90 you must turn on the nscd_use_shm boolean. Disabled by default.
91 setsebool -P nscd_use_shm 1
93
97 The SELinux process type sshd_keygen_t can manage files labeled with
98 the following file types. The paths listed are the default paths for
99 these file types. Note the processes UID still need to have DAC per‐
100 missions.
101 cluster_conf_t
103 /etc/cluster(/.*)?
105 cluster_var_lib_t
107 /var/lib/pcsd(/.*)?
109 /var/lib/cluster(/.*)?
110 /var/lib/openais(/.*)?
111 /var/lib/pengine(/.*)?
112 /var/lib/corosync(/.*)?
113 /usr/lib/heartbeat(/.*)?
114 /var/lib/heartbeat(/.*)?
115 /var/lib/pacemaker(/.*)?
116 cluster_var_run_t
118 /var/run/crm(/.*)?
120 /var/run/cman_.*
121 /var/run/rsctmp(/.*)?
122 /var/run/aisexec.*
123 /var/run/heartbeat(/.*)?
124 /var/run/corosync-qnetd(/.*)?
125 /var/run/corosync-qdevice(/.*)?
126 /var/run/corosync.pid
127 /var/run/cpglockd.pid
128 /var/run/rgmanager.pid
129 /var/run/cluster/rgmanager.sk
130 root_t
132 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
134 /
135 /initrd
136 sshd_key_t
138 /etc/ssh/ssh_host.*_key
140 /etc/ssh/ssh_host.*_key.pub
141 /etc/ssh/primes
142
145 SELinux requires files to have an extended attribute to define the file
146 type.
147 You can see the context of a file using the -Z option to ls
149 Policy governs the access confined processes have to these files.
151 SELinux sshd_keygen policy is very flexible allowing users to setup
152 their sshd_keygen processes in as secure a method as possible.
153 STANDARD FILE CONTEXT
155 SELinux defines the file context types for the sshd_keygen, if you
157 wanted to store files with these types in a diffent paths, you need to
158 execute the semanage command to sepecify alternate labeling and then
159 use restorecon to put the labels on disk.
160 semanage fcontext -a -t sshd_keygen_unit_file_t '/srv/mysshd_key‐
162 gen_content(/.*)?'
163 restorecon -R -v /srv/mysshd_keygen_content
164 Note: SELinux often uses regular expressions to specify labels that
166 match multiple files.
167 The following file types are defined for sshd_keygen:
169 sshd_keygen_exec_t
173 - Set files with the sshd_keygen_exec_t type, if you want to transition
175 an executable to the sshd_keygen_t domain.
176 Paths:
179 /usr/sbin/sshd-keygen, /usr/libexec/openssh/sshd-keygen
180 sshd_keygen_unit_file_t
183 - Set files with the sshd_keygen_unit_file_t type, if you want to treat
185 the files as sshd keygen unit content.
186 Note: File context can be temporarily modified with the chcon command.
190 If you want to permanently change the file context you need to use the
191 semanage fcontext command. This will modify the SELinux labeling data‐
192 base. You will need to use restorecon to apply the labels.
193
196 semanage fcontext can also be used to manipulate default file context
197 mappings.
198 semanage permissive can also be used to manipulate whether or not a
200 process type is permissive.
201 semanage module can also be used to enable/disable/install/remove pol‐
203 icy modules.
204 semanage boolean can also be used to manipulate the booleans
206 system-config-selinux is a GUI tool available to customize SELinux pol‐
209 icy settings.
210
213 This manual page was auto-generated using sepolicy manpage .
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217 selinux(8), sshd_keygen(8), semanage(8), restorecon(8), chcon(1),
218 sepolicy(8), setsebool(8)
219sshd_keygen 19-06-18 sshd_keygen_selinux(8)