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ntop/chroot questions
I just started using ntop (network top) today, and it seems
like a cool and useful tool. has anyone else used it/had any
experience with it?
I might like to leave it running for some time; but I see that
it runs as root (it's installed SUID by default). I decided to try
chrooting it (partly as a learning exercise with chroot); but I can't
seem to make chroot work. :(
here's how I have things set up so far:
[root@loop /home/ntop]# ls -alF
total 7
drwx------ 6 root root 1024 Jun 23 13:37 ./
drwxr-xr-x 15 root root 1024 Jun 23 11:26 ../
-rw------- 1 root root 123 Jun 23 12:01 .bash_history
drwx------ 2 root root 1024 Jun 23 13:30 bin/
drwx------ 3 root root 1024 Jun 23 12:51 etc/
drwx------ 2 root root 1024 Jun 23 13:37 root/
drwx------ 2 root root 1024 Jun 23 12:49 sbin/
[root@loop /home/ntop]# ls -alF *
bin:
total 370
drwx------ 2 root root 1024 Jun 23 13:30 ./
drwx------ 6 root root 1024 Jun 23 13:37 ../
-rwx------ 1 root root 373176 Jun 23 13:30 bash*
etc:
total 3
drwx------ 3 root root 1024 Jun 23 12:51 ./
drwx------ 6 root root 1024 Jun 23 13:37 ../
drwx------ 3 root root 1024 Jun 23 12:51 ntop/
root:
total 3
drwx------ 2 root root 1024 Jun 23 13:37 ./
drwx------ 6 root root 1024 Jun 23 13:37 ../
-rw------- 1 root root 41 Jun 23 11:30 .ntop
sbin:
total 253
drwx------ 2 root root 1024 Jun 23 12:49 ./
drwx------ 6 root root 1024 Jun 23 13:37 ../
-rwx------ 1 root root 255928 Jun 23 12:42 ntop*
here's what happens when I try chroot'ing, tho:
[root@loop /home/ntop]# chroot /home/ntop/ sbin/ntop
chroot: cannot execute sbin/ntop: No such file or directory
[root@loop /home/ntop]# chroot /home/ntop/
chroot: cannot execute /bin/bash: No such file or directory
as one can see from the above listing, those files very well *are*
present; and AFAIK, have the right permissions. I can launch those
particular files just fine (bin/bash, sbin/ntop), when I don't chroot.
what am I missing here? I'm sure it's something obvious...
Carl Soderstrom
_________________________________________
Systems Administrator 307 Brighton Ave.
Minnesota DHIA Buffalo, MN
carls@agritech.com (763) 682-1091