On 2008-09-11, Dennis Lee Bieber <[EMAIL PROTECTED]> wrote: > On Wed, 10 Sep 2008 21:36:36 -0500, Grant Edwards <[EMAIL PROTECTED]> > declaimed the following in comp.lang.python: > > >> Wrong. I didn't send _any_ e-mail. Why should I get bounce >> messages? >> > One: Comp.lang.python is dual-routed with a mailing list; anything > you post to either CLP or the mailing list gets cross-posted to the > other -- the FROM header retains that of the original author (which > could be you). > > Two: Somebody else is subscribed to the mailing list, and sets up an > "out-of-office" reply or has other problems (like an overfilled mailbox, > causing a bounce, or a discontinued account) when the forwarded post > reaches their address. > > Three: The bounce/ooo-reply is sent to the message author, not to > any intermediate host(s). After all, on that end, it's normal email > failure response -- notify the author of the messag > file. I can see from your general comments that you are new to this game, so > I won't try just yet to explain what suid means. Just > run 'ls -al /usr/bin/passwd' and check that the first column looks like mine: > > -rws--x--x 1 root root 38464 Aug 4 02:42 /bin/passwd > > The 's' is vital, passwd will not work without it. > > In another post you mentioned getresuid(). Pretend you never saw this - it is > a system call used by programmers when writing code. A user will never use > it. You already have the ability to make programs suid - it's built into the > kernel and the user programs that switch it on and off are part of a package > called coreutils. I 100% guarantee that it is installed on your machine. >
[EMAIL PROTECTED] ~ $ sudo mount Password: /dev/hdc on / type ext3 (rw,noatime) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw,nosuid,nodev,noexec) udev on /dev type tmpfs (rw,nosuid,size=10240k,mode=755) devpts on /dev/pts type devpts (rw,nosuid,noexec,gid=5,mode=620) none on /dev/shm type tmpfs (rw) usbfs on /proc/bus/usb type usbfs (rw,noexec,nosuid,devmode=0664,devgid=85) nfsd on /proc/fs/nfs type nfsd (rw,noexec,nosuid,nodev) [EMAIL PROTECTED] ~ $ ls -al /usr/bin/passwd lrwxrwxrwx 1 root root 11 May 16 14:08 /usr/bin/passwd -> /bin/passwd [EMAIL PROTECTED] ~ $ ls -l /bin/passwd -rws--x--x 1 root root 28712 May 16 14:08 /bin/passwd
