There are different users in my Linux server [u01 - u04], can I use each specific resolv.conf file?
eg:
u01: nameserver=10.14.15.123 u02: nameserver=10.14.15.124 u03: nameserver=10.14.16.125
The short answer is no, see resolv.conf (5) . However, if you really want this function, you can override the functions in resolver (3) in the shared library and use ld-magic to override the originals, at least in dynamically linked applications.