Hi, i have assign one user called test1 and assign him group1 as the primary group and another user called test2 and assign him group2 as the primary group.
The file generated out from test1 belongs to group1 but test2 account need to access. So i give test2 account group1 as the secondary group. But however test2 is still unable to access. May i know what is the problem? Is this how secondary group works? thanks
No. If you have added test2 to group1 through SAM , essentially SAM has used the command to add the user to the requested group. But just to verify once you are logged in as user2 do a groups or if you are logged in as root do groups user2 or grep group2 /etc/group - to check if entry for test2 appears.
Yes secondary group works exactly as you have thought. What is the function of secondary group - Basically a particular user may have different roles and hence require different privileges. Hence he can be member of different groups as different permissions may be available by providing them to the additional groups. I think I have used similar thing and did not require to do a newgrp to be able to get the access/privilege to read the file. But still if you can see that test2 has been indeed a member of group1, try using newgrp group1 after logging in as user2 and try accesing the file.
