The question is about capabilities.
I need to allow user to set capabilities using setcap.
When I call it by root all goes fine, eg `$ sudo setcap cap_dac_override,cap_dac_read_search+ep ./bin_file`

```
$ getcap ./bin_file
./bin_file = cap_dac_override,cap_dac_read_search+ep

```

but when i run the command with user privileges...

```
$ /sbin/setcap cap_dac_override,cap_dac_read_search+ep ./bin_file
unable to set CAP_SETFCAP effective capability: Operation not permitted

```

I added the following string into `/etc/security/capability.conf`:

```
cap_setfcap,cap_dac_override,cap_dac_read_search user

```

but it still doesn't work.