remote_login_selinux(8)

1remote_login_selinux(8)   SELinux Policy remote_login  remote_login_selinux(8)
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NAME

6       remote_login_selinux   -   Security   Enhanced  Linux  Policy  for  the
7       remote_login processes
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DESCRIPTION

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

24       The  remote_login_t  SELinux  type  can  be  entered via the file_type,
25       login_exec_t, unlabeled_t, proc_type,  filesystem_type,  mtrr_device_t,
26       sysctl_type file types.
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28       The default entrypoint paths for the remote_login_t domain are the fol‐
29       lowing:
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31       all files on  the  system,  /bin/login,  /usr/kerberos/sbin/login.krb5,
32       /dev/cpu/mtrr
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PROCESS TYPES

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

55       SELinux   policy  is  customizable  based  on  least  access  required.
56       remote_login policy is extremely flexible and has several booleans that
57       allow you to manipulate the policy and run remote_login with the tight‐
58       est access possible.
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62       If you want to allow all domains to use other domains file descriptors,
63       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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65       setsebool -P allow_domain_fd_use 1
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69       If  you  want to allow unconfined executables to make their heap memory
70       executable.  Doing this is a really  bad  idea.  Probably  indicates  a
71       badly  coded  executable, but could indicate an attack. This executable
72       should be reported in bugzilla, you must  turn  on  the  allow_execheap
73       boolean. Disabled by default.
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75       setsebool -P allow_execheap 1
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79       If  you  want to allow unconfined executables to map a memory region as
80       both executable and writable, this  is  dangerous  and  the  executable
81       should  be  reported  in  bugzilla), you must turn on the allow_execmem
82       boolean. Enabled by default.
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84       setsebool -P allow_execmem 1
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88       If you want to  allow  all  unconfined  executables  to  use  libraries
89       requiring  text  relocation  that are not labeled textrel_shlib_t), you
90       must turn on the allow_execmod boolean. Enabled by default.
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92       setsebool -P allow_execmod 1
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96       If you want to allow unconfined executables to make  their  stack  exe‐
97       cutable.   This  should  never, ever be necessary. Probably indicates a
98       badly coded executable, but could indicate an attack.  This  executable
99       should  be  reported in bugzilla), you must turn on the allow_execstack
100       boolean. Enabled by default.
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102       setsebool -P allow_execstack 1
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106       If you want to allow confined applications to run  with  kerberos,  you
107       must turn on the allow_kerberos boolean. Enabled by default.
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109       setsebool -P allow_kerberos 1
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113       If you want to enable polyinstantiated directory support, you must turn
114       on the allow_polyinstantiation boolean. Enabled by default.
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116       setsebool -P allow_polyinstantiation 1
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120       If you want to allow sysadm to debug or ptrace all processes, you  must
121       turn on the allow_ptrace boolean. Disabled by default.
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123       setsebool -P allow_ptrace 1
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127       If  you  want  to  allow  system  to run with NIS, you must turn on the
128       allow_ypbind boolean. Disabled by default.
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130       setsebool -P allow_ypbind 1
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134       If you want to allow users to login using a  radius  server,  you  must
135       turn on the authlogin_radius boolean. Disabled by default.
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137       setsebool -P authlogin_radius 1
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141       If  you  want  to allow users login programs to access /etc/shadow, you
142       must turn on the authlogin_shadow boolean. Disabled by default.
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144       setsebool -P authlogin_shadow 1
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148       If you want to allow all domains to have the kernel load  modules,  you
149       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
150       default.
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152       setsebool -P domain_kernel_load_modules 1
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156       If you want to allow all domains to execute in fips_mode, you must turn
157       on the fips_mode boolean. Enabled by default.
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159       setsebool -P fips_mode 1
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163       If you want to enable reading of urandom for all domains, you must turn
164       on the global_ssp boolean. Disabled by default.
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166       setsebool -P global_ssp 1
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170       If you want to allow certain domains to map low memory in  the  kernel,
171       you must turn on the mmap_low_allowed boolean. Disabled by default.
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173       setsebool -P mmap_low_allowed 1
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177       If  you  want to allow confined applications to use nscd shared memory,
178       you must turn on the nscd_use_shm boolean. Enabled by default.
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180       setsebool -P nscd_use_shm 1
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184       If you want to boolean to determine whether the system permits  loading
185       policy,  setting enforcing mode, and changing boolean values.  Set this
186       to true and you have to reboot to set it back, you  must  turn  on  the
187       secure_mode_policyload boolean. Disabled by default.
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189       setsebool -P secure_mode_policyload 1
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193       If  you want to allow a user to login as an unconfined domain, you must
194       turn on the unconfined_login boolean. Enabled by default.
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196       setsebool -P unconfined_login 1
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200       If you want to support NFS home  directories,  you  must  turn  on  the
201       use_nfs_home_dirs boolean. Disabled by default.
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203       setsebool -P use_nfs_home_dirs 1
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207       If  you  want  to  support SAMBA home directories, you must turn on the
208       use_samba_home_dirs boolean. Disabled by default.
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210       setsebool -P use_samba_home_dirs 1
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214       If you want to support X userspace object manager, you must turn on the
215       xserver_object_manager boolean. Disabled by default.
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217       setsebool -P xserver_object_manager 1
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MANAGED FILES

222       The  SELinux  process type remote_login_t can manage files labeled with
223       the following file types.  The paths listed are the default  paths  for
224       these  file  types.  Note the processes UID still need to have DAC per‐
225       missions.
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227       file_type
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229            all files on the system
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COMMANDS

233       semanage fcontext can also be used to manipulate default  file  context
234       mappings.
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236       semanage  permissive  can  also  be used to manipulate whether or not a
237       process type is permissive.
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239       semanage module can also be used to enable/disable/install/remove  pol‐
240       icy modules.
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242       semanage boolean can also be used to manipulate the booleans
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245       system-config-selinux is a GUI tool available to customize SELinux pol‐
246       icy settings.
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AUTHOR

250       This manual page was auto-generated using sepolicy manpage .
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