1sysadm_su_selinux(8)       SELinux Policy sysadm_su       sysadm_su_selinux(8)
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NAME

6       sysadm_su_selinux  -  Security  Enhanced Linux Policy for the sysadm_su
7       processes
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DESCRIPTION

10       Security-Enhanced Linux secures the sysadm_su  processes  via  flexible
11       mandatory access control.
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13       The  sysadm_su processes execute with the sysadm_su_t SELinux type. You
14       can check if you have these processes running by executing the ps  com‐
15       mand with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep sysadm_su_t
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ENTRYPOINTS

24       The  sysadm_su_t  SELinux  type  can  be entered via the su_exec_t file
25       type.
26
27       The default entrypoint paths for the sysadm_su_t domain are the follow‐
28       ing:
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30       /usr/(local/)?bin/ksu, /bin/su, /usr/bin/su, /usr/bin/kdesu
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PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
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36       You can see the context of a process using the -Z option to ps
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38       Policy governs the access confined processes have  to  files.   SELinux
39       sysadm_su  policy  is  very  flexible  allowing  users  to  setup their
40       sysadm_su processes in as secure a method as possible.
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42       The following process types are defined for sysadm_su:
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44       sysadm_su_t, sysadm_sudo_t
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46       Note: semanage permissive -a  sysadm_su_t  can  be  used  to  make  the
47       process  type  sysadm_su_t  permissive. SELinux does not deny access to
48       permissive process types, but the AVC (SELinux  denials)  messages  are
49       still generated.
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BOOLEANS

53       SELinux   policy  is  customizable  based  on  least  access  required.
54       sysadm_su policy is extremely flexible and has  several  booleans  that
55       allow  you to manipulate the policy and run sysadm_su with the tightest
56       access possible.
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60       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.
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64       setsebool -P authlogin_nsswitch_use_ldap 1
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67
68       If you want to deny any process from ptracing or  debugging  any  other
69       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
70       default.
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72       setsebool -P deny_ptrace 1
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75
76       If you want to allow any process  to  mmap  any  file  on  system  with
77       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
78       ean. Enabled by default.
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80       setsebool -P domain_can_mmap_files 1
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84       If you want to allow all domains write to kmsg_device, while kernel  is
85       executed  with  systemd.log_target=kmsg parameter, you must turn on the
86       domain_can_write_kmsg boolean. Disabled by default.
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88       setsebool -P domain_can_write_kmsg 1
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92       If you want to allow all domains to use other domains file descriptors,
93       you must turn on the domain_fd_use boolean. Enabled by default.
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95       setsebool -P domain_fd_use 1
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99       If  you  want to allow all domains to have the kernel load modules, you
100       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
101       default.
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103       setsebool -P domain_kernel_load_modules 1
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107       If you want to allow all domains to execute in fips_mode, you must turn
108       on the fips_mode boolean. Enabled by default.
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110       setsebool -P fips_mode 1
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114       If you want to enable reading of urandom for all domains, you must turn
115       on the global_ssp boolean. Disabled by default.
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117       setsebool -P global_ssp 1
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120
121       If  you  want  to allow confined applications to run with kerberos, you
122       must turn on the kerberos_enabled boolean. Enabled by default.
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124       setsebool -P kerberos_enabled 1
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128       If you want to allow system to run with  NIS,  you  must  turn  on  the
129       nis_enabled boolean. Disabled by default.
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131       setsebool -P nis_enabled 1
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134
135       If  you  want to allow confined applications to use nscd shared memory,
136       you must turn on the nscd_use_shm boolean. Disabled by default.
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138       setsebool -P nscd_use_shm 1
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141
142       If you want to enable polyinstantiated directory support, you must turn
143       on the polyinstantiation_enabled boolean. Disabled by default.
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145       setsebool -P polyinstantiation_enabled 1
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148
149       If  you  want  to  support  NFS  home directories, you must turn on the
150       use_nfs_home_dirs boolean. Disabled by default.
151
152       setsebool -P use_nfs_home_dirs 1
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156       If you want to support SAMBA home directories, you  must  turn  on  the
157       use_samba_home_dirs boolean. Disabled by default.
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159       setsebool -P use_samba_home_dirs 1
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MANAGED FILES

164       The  SELinux process type sysadm_su_t can manage files labeled with the
165       following file types.  The paths listed are the default paths for these
166       file types.  Note the processes UID still need to have DAC permissions.
167
168       faillog_t
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170            /var/log/btmp.*
171            /var/log/faillog.*
172            /var/log/tallylog.*
173            /var/run/faillock(/.*)?
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175       initrc_var_run_t
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177            /var/run/utmp
178            /var/run/random-seed
179            /var/run/runlevel.dir
180            /var/run/setmixer_flag
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182       krb5_host_rcache_t
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184            /var/cache/krb5rcache(/.*)?
185            /var/tmp/nfs_0
186            /var/tmp/DNS_25
187            /var/tmp/host_0
188            /var/tmp/imap_0
189            /var/tmp/HTTP_23
190            /var/tmp/HTTP_48
191            /var/tmp/ldap_55
192            /var/tmp/ldap_487
193            /var/tmp/ldapmap1_0
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195       lastlog_t
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197            /var/log/lastlog.*
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199       security_t
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201            /selinux
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COMMANDS

205       semanage  fcontext  can also be used to manipulate default file context
206       mappings.
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208       semanage permissive can also be used to manipulate  whether  or  not  a
209       process type is permissive.
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211       semanage  module can also be used to enable/disable/install/remove pol‐
212       icy modules.
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214       semanage boolean can also be used to manipulate the booleans
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217       system-config-selinux is a GUI tool available to customize SELinux pol‐
218       icy settings.
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AUTHOR

222       This manual page was auto-generated using sepolicy manpage .
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SEE ALSO

226       selinux(8),  sysadm_su(8), semanage(8), restorecon(8), chcon(1), sepol‐
227       icy(8) , setsebool(8)
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231sysadm_su                          19-04-25               sysadm_su_selinux(8)
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