1xauth_selinux(8) SELinux Policy xauth xauth_selinux(8)
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6 xauth_selinux - Security Enhanced Linux Policy for the xauth processes
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9 Security-Enhanced Linux secures the xauth processes via flexible manda‐
10 tory access control.
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12 The xauth processes execute with the xauth_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
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16 For example:
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18 ps -eZ | grep xauth_t
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23 The xauth_t SELinux type can be entered via the xauth_exec_t file type.
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25 The default entrypoint paths for the xauth_t domain are the following:
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27 /usr/bin/xauth, /usr/X11R6/bin/xauth
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30 SELinux defines process types (domains) for each process running on the
31 system
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33 You can see the context of a process using the -Z option to ps
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35 Policy governs the access confined processes have to files. SELinux
36 xauth policy is very flexible allowing users to setup their xauth pro‐
37 cesses in as secure a method as possible.
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39 The following process types are defined for xauth:
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41 xauth_t
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43 Note: semanage permissive -a xauth_t can be used to make the process
44 type xauth_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
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50 SELinux policy is customizable based on least access required. xauth
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run xauth with the tightest access possible.
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56 If you want to allow all domains to use other domains file descriptors,
57 you must turn on the allow_domain_fd_use boolean. Enabled by default.
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59 setsebool -P allow_domain_fd_use 1
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63 If you want to allow confined applications to run with kerberos, you
64 must turn on the allow_kerberos boolean. Enabled by default.
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66 setsebool -P allow_kerberos 1
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70 If you want to allow sysadm to debug or ptrace all processes, you must
71 turn on the allow_ptrace boolean. Disabled by default.
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73 setsebool -P allow_ptrace 1
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77 If you want to allow system to run with NIS, you must turn on the
78 allow_ypbind boolean. Disabled by default.
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80 setsebool -P allow_ypbind 1
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84 If you want to allow all domains to have the kernel load modules, you
85 must turn on the domain_kernel_load_modules boolean. Disabled by
86 default.
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88 setsebool -P domain_kernel_load_modules 1
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92 If you want to allow all domains to execute in fips_mode, you must turn
93 on the fips_mode boolean. Enabled by default.
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95 setsebool -P fips_mode 1
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99 If you want to enable reading of urandom for all domains, you must turn
100 on the global_ssp boolean. Disabled by default.
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102 setsebool -P global_ssp 1
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106 If you want to allow confined applications to use nscd shared memory,
107 you must turn on the nscd_use_shm boolean. Enabled by default.
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109 setsebool -P nscd_use_shm 1
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113 If you want to support NFS home directories, you must turn on the
114 use_nfs_home_dirs boolean. Disabled by default.
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116 setsebool -P use_nfs_home_dirs 1
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120 If you want to support SAMBA home directories, you must turn on the
121 use_samba_home_dirs boolean. Disabled by default.
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123 setsebool -P use_samba_home_dirs 1
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128 The SELinux process type xauth_t can manage files labeled with the fol‐
129 lowing file types. The paths listed are the default paths for these
130 file types. Note the processes UID still need to have DAC permissions.
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132 cifs_t
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135 initrc_tmp_t
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138 mnt_t
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140 /mnt(/[^/]*)
141 /mnt(/[^/]*)?
142 /rhev(/[^/]*)?
143 /media(/[^/]*)
144 /media(/[^/]*)?
145 /etc/rhgb(/.*)?
146 /media/.hal-.*
147 /net
148 /afs
149 /rhev
150 /misc
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152 nfs_t
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155 tmp_t
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157 /tmp
158 /usr/tmp
159 /var/tmp
160 /tmp-inst
161 /var/tmp-inst
162 /var/tmp/vi.recover
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164 user_home_t
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166 /home/[^/]*/.+
167 /home/staff/.+
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169 user_tmp_t
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171 /tmp/gconfd-.*
172 /tmp/gconfd-staff
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174 xauth_home_t
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176 /root/.Xauth.*
177 /root/.xauth.*
178 /root/.serverauth.*
179 /var/lib/pqsql/.xauth.*
180 /var/lib/pqsql/.Xauthority.*
181 /var/lib/nxserver/home/.xauth.*
182 /var/lib/nxserver/home/.Xauthority.*
183 /home/[^/]*/.xauth.*
184 /home/[^/]*/.Xauthority.*
185 /home/[^/]*/.serverauth.*
186 /home/staff/.xauth.*
187 /home/staff/.Xauthority.*
188 /home/staff/.serverauth.*
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190 xauth_tmp_t
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193 xdm_tmp_t
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195 /tmp/.X11-unix(/.*)?
196 /tmp/.ICE-unix(/.*)?
197 /tmp/.X0-lock
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199 xdm_var_run_t
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201 /usr/lib(64)?/qt-.*/etc/settings(/.*)?
202 /var/run/[gx]dm.pid
203 /etc/kde3?/kdm/backgroundrc
204 /var/run/kdm(/.*)?
205 /var/run/gdm(/.*)?
206 /var/run/slim.*
207 /var/run/lxdm(/*.)?
208 /var/run/slim(/.*)?
209 /var/run/xauth(/.*)?
210 /var/run/xdmctl(/.*)?
211 /var/run/lxdm.pid
212 /var/run/lxdm.auth
213 /var/run/gdm_socket
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217 SELinux requires files to have an extended attribute to define the file
218 type.
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220 You can see the context of a file using the -Z option to ls
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222 Policy governs the access confined processes have to these files.
223 SELinux xauth policy is very flexible allowing users to setup their
224 xauth processes in as secure a method as possible.
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226 STANDARD FILE CONTEXT
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228 SELinux defines the file context types for the xauth, if you wanted to
229 store files with these types in a diffent paths, you need to execute
230 the semanage command to sepecify alternate labeling and then use
231 restorecon to put the labels on disk.
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233 semanage fcontext -a -t xauth_tmp_t '/srv/myxauth_content(/.*)?'
234 restorecon -R -v /srv/myxauth_content
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236 Note: SELinux often uses regular expressions to specify labels that
237 match multiple files.
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239 The following file types are defined for xauth:
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243 xauth_exec_t
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245 - Set files with the xauth_exec_t type, if you want to transition an
246 executable to the xauth_t domain.
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249 Paths:
250 /usr/bin/xauth, /usr/X11R6/bin/xauth
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253 xauth_home_t
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255 - Set files with the xauth_home_t type, if you want to store xauth
256 files in the users home directory.
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259 Paths:
260 /root/.Xauth.*, /root/.xauth.*, /root/.serverauth.*,
261 /var/lib/pqsql/.xauth.*, /var/lib/pqsql/.Xauthority.*,
262 /var/lib/nxserver/home/.xauth.*, /var/lib/nxserver/home/.Xauthor‐
263 ity.*, /home/[^/]*/.xauth.*, /home/[^/]*/.Xauthority.*,
264 /home/[^/]*/.serverauth.*, /home/staff/.xauth.*, /home/staff/.Xau‐
265 thority.*, /home/staff/.serverauth.*
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268 xauth_tmp_t
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270 - Set files with the xauth_tmp_t type, if you want to store xauth tem‐
271 porary files in the /tmp directories.
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275 Note: File context can be temporarily modified with the chcon command.
276 If you want to permanently change the file context you need to use the
277 semanage fcontext command. This will modify the SELinux labeling data‐
278 base. You will need to use restorecon to apply the labels.
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282 semanage fcontext can also be used to manipulate default file context
283 mappings.
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285 semanage permissive can also be used to manipulate whether or not a
286 process type is permissive.
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288 semanage module can also be used to enable/disable/install/remove pol‐
289 icy modules.
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291 semanage boolean can also be used to manipulate the booleans
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294 system-config-selinux is a GUI tool available to customize SELinux pol‐
295 icy settings.
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299 This manual page was auto-generated using sepolicy manpage .
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303 selinux(8), xauth(8), semanage(8), restorecon(8), chcon(1) , setse‐
304 bool(8)
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308xauth 15-06-03 xauth_selinux(8)