ADDENDUM: why once you are root using "su -" do you still have your previous limits ?

From: lombardi emanuele <lele_at_mantegna.casaccia.enea.it>
Date: Tue, 15 Dec 1998 17:29:03 +0100 (MET)

Going further in the study of the above topic, I discovered that
once you are logged as a no-root user, if you use

/usr/bin/login root

to become root, you will NOT be given full root limits. It seems that
your new root limits will not exceed the value of those you had as
no-root user.

It happens the same for /usr/bin/login as for /usr/bin/su - !!

It seems strange to me, can anybody tell me

        1) why does it happen;
        2) how to get full root limits without logging directely
                as root? (For obvious security reasons I don't want to allow remote root
                logins).

Thank you everybody,

Emanuele

-- 
 Emanuele Lombardi
 mail:  AMB-GEM-CLIM ENEA Casaccia
        I-00060 S.M. di Galeria (RM)  ITALY
 mailto:lele_at_mantegna.casaccia.enea.it
 tel	+39 6 30483366 fax	+39 6 30483591
     This transmission was made possible by 100% recycled electrons.
============================================ ROOT LIMITS AS GIVEN
============================================ LOGGING DIRECTELY  AS ROOT
telnet -l root botticelli
Trying 192.107.71.111...
Connected to botticelli.casaccia.enea.it.
Escape character is '^]'.
Digital UNIX (botticelli.casaccia.enea.it) (ttyp3)
login: root
Password:
Last   successful login for root: Tue Dec 15 16:57:33 1998 from climult2.casaccia.enea.it
Last unsuccessful login for root: Tue Dec 15 16:56:26 1998 on ttyp0
Digital UNIX V4.0D  (Rev. 878); Wed Aug 26 11:43:19 MET DST 1998 
BO ~ limit
cputime         unlimited
filesize        unlimited
datasize        131072 kbytes
stacksize       2048 kbytes
coredumpsize    0 kbytes
memoryuse       1023392 kbytes
vmemoryuse      1048576 kbytes
descriptors     4096 
============================================ USER LIMITS AS GIVEN
============================================ LOGGING AS NO-ROOT USER
telnet -l lele botticelli
Trying 192.107.71.111...
Connected to botticelli.casaccia.enea.it.
Escape character is '^]'.
Digital UNIX (botticelli.casaccia.enea.it) (ttyp3)
login: lele
Password:
Last   successful login for lele: Tue Dec 15 16:58:00 1998 on ttyp3
Last unsuccessful login for lele: Tue Dec 15 16:05:19 1998 on ttyp2
Digital UNIX V4.0D  (Rev. 878); Wed Aug 26 11:43:19 MET DST 1998 
BO ~ limit
cputime         15:00
filesize        unlimited
datasize        71680 kbytes
stacksize       2048 kbytes
coredumpsize    0 kbytes
memoryuse       71680 kbytes
vmemoryuse      71680 kbytes
descriptors     4096 
BO ~ unlimit
BO ~ limit
cputime         15:00
filesize        unlimited
datasize        71680 kbytes
stacksize       32768 kbytes
coredumpsize    0 kbytes
memoryuse       71680 kbytes
vmemoryuse      71680 kbytes
descriptors     4096 
============================================ ROOT LIMITS AS GIVEN
============================================ LOGGING TO ROOT FROM USER
============================================>>>> THE LIMITS ARE STILL THOSE 
============================================>>>> OF THE USER, NOT THOSE
============================================>>>> OF ROOT
BO ~ /usr/bin/login root
Password:
Last   successful login for root: Tue Dec 15 16:58:34 1998 from climult2.casaccia.enea.it
Last unsuccessful login for root: Tue Dec 15 16:56:26 1998 on ttyp0
Digital UNIX V4.0D  (Rev. 878); Wed Aug 26 11:43:19 MET DST 1998 
BO ~ limit
cputime         15:00
filesize        unlimited
datasize        71680 kbytes
stacksize       32768 kbytes
coredumpsize    0 kbytes
memoryuse       71680 kbytes
vmemoryuse      71680 kbytes
descriptors     4096 
BO ~ unlimit
BO ~ limit
cputime         15:00
filesize        unlimited
datasize        71680 kbytes
stacksize       32768 kbytes
coredumpsize    0 kbytes
memoryuse       71680 kbytes
vmemoryuse      71680 kbytes
descriptors     4096 

Received on Tue Dec 15 1998 - 16:31:30 NZDT