topic Re: chmod u+s not working good? in Operating System - HP-UX

chmod u+s not working good?

uadm26 — Tue, 06 Sep 2005 08:31:34 GMT

Hi,

When i try to cahnge a file permissions, setting the setid (+s) by root that's what append, appears the letter "S", not the "s", in lower case. Why?

root@beta5:/tmp/testes# chmod u+s tt
root@beta5:/tmp/testes# ll
total 2
-rwSr--r-- 1 root sys 54 Sep 6 14:26 tt
root@beta5:/tmp/testes#

Re: chmod u+s not working good?

Patrick Wallek — Tue, 06 Sep 2005 08:35:33 GMT

The file needs to have the execute (x) bit set before you set the set-uid bit. Try this instead:

# chmod 4744 tt

Re: chmod u+s not working good?

RAC_1 — Tue, 06 Sep 2005 08:35:52 GMT

chmod 4766 file_name

Re: chmod u+s not working good?

Pete Randall — Tue, 06 Sep 2005 08:36:40 GMT

There's no execute permission set.

Pete

Re: chmod u+s not working good?

James R. Ferguson — Tue, 06 Sep 2005 08:37:41 GMT

Hi Joel:

The capital letter "S" means that the execute bit isn't set for the owner but the setuid bit is. Do:

chmod 4544 to your file to see a change from the capital "S" to a lowercase "s".

Regards!

...JRF...

Re: chmod u+s not working good?

Steven E. Protter — Tue, 06 Sep 2005 08:39:14 GMT

Two suggestions:

1) Make sure there is no process with a filehandle on that file. I got those results when a daemon had a constant hold on a file. The daemon was unfortuneately owned by root.

2) Perhaps try the chmod command numeric instead of by letters. chmod 7xxx or 5xxx the letters in my example are the normal file permissions.

I got the same results as you on a Linux machine(my HP-9000 is shut for noise reasons).

Chmod 7555 worked and produced possibly desireable results.

SEP

Re: chmod u+s not working good?

uadm26 — Tue, 06 Sep 2005 08:39:29 GMT

thanks, for all.