How to Show All Established Mappings

The idmap dump command enables you to view all of the SID-to-UID and SID-to-GID mappings that are stored in the cache.

1. List all of the mappings in the cache.

   By default, the idmap dump command only lists the mappings themselves. The -v option includes additional information about how the identity mapping was generated, which can help with troubleshooting.

   $ idmap dump sid:S-1-5-21-2949573101-2750415176-3223191800-2000 == uid:50000 sid:S-1-5-21-2949573101-2750415176-3223191800-2001 == uid:50001 sid:S-1-5-21-2949573101-2750415176-3223191800-2006 == uid:50010 sid:S-1-5-21-2949573101-2750415176-3223191900-3000 == uid:2147491840 sid:S-1-5-21-2949573101-2750415176-3223191900-3001 == gid:2147491342 sid:S-1-5-21-2949573101-2750415176-3223191700-4000 => uid:60001 sid:S-1-5-21-2949573101-2750415176-3223191700-4001 => gid:60001 sid:S-1-5-21-2949573101-2750415176-3223191800-5000 == gid:50000 sid:S-1-5-21-2949573101-2750415176-3223191800-5001 == gid:50001

   • To optionally list only the user mappings, type:

     $ idmap dump | grep uid sid:S-1-5-21-2949573101-2750415176-3223191800-2000 == uid:50000 sid:S-1-5-21-2949573101-2750415176-3223191800-2001 == uid:50001 sid:S-1-5-21-2949573101-2750415176-3223191800-2006 == uid:50010 sid:S-1-5-21-2949573101-2750415176-3223191900-3000 == uid:2147491840 sid:S-1-5-21-2949573101-2750415176-3223191700-4000 => uid:60001

   • To optionally list only the group mappings, type:

     $ idmap dump | grep gid sid:S-1-5-21-2949573101-2750415176-3223191900-3001 == gid:2147491342 sid:S-1-5-21-2949573101-2750415176-3223191700-4001 => gid:60001 sid:S-1-5-21-2949573101-2750415176-3223191800-5000 == gid:50000 sid:S-1-5-21-2949573101-2750415176-3223191800-5001 == gid:50001