Hi,
Why am I unable to strace / lsof into certain processes, even as "root"
user? I am unable to find a concrete answer for this. Please assist.
========
root 14940 0.0 0.1 10380 2552 ? SN 13:02 0:00 \_
/usr/sbin/exim -q
root@dedicated100 [~]# lsof -p 14940
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
exim 14940 root cwd unknown /proc/14940/cwd
(readlink: Permission denied)
exim 14940 root rtd unknown /proc/14940/root
(readlink: Permission denied)
exim 14940 root txt unknown /proc/14940/exe
(readlink: Permission denied)
exim 14940 root 0 unknown /proc/14940/fd/0
(readlink: Permission denied)
exim 14940 root 1 unknown /proc/14940/fd/1
(readlink: Permission denied)
exim 14940 root 2 unknown /proc/14940/fd/2
(readlink: Permission denied)
exim 14940 root 3 unknown /proc/14940/fd/3
(readlink: Permission denied)
exim 14940 root 4 unknown /proc/14940/fd/4
(readlink: Permission denied)
root@dedicated100 [~]# strace -p 14940
attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
========
--
Regards,
Vimal Kumar K
| vimalZworld.com * technomenace.com * twitter.com/vimal7370 |
| E: vimal7370 at gmail dot com P: +919947450760 |
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