Why can't gdb connect to a server application called inetd?

Question

I have a server application that can be called for a client using inetd. However, if I try to connect to a server process that was started using inetd, I get the following response: ptrace: operation not allowed.

gdb --annotate=3 /my/app/here <processId>

Current directory is /usr/local/bin/
GNU gdb 6.8
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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This GDB was configured as "i686-pc-linux-gnu"...
Reading symbols from /usr/local/bin/flumed...done.
Using host libthread_db library "/lib/tls/libthread_db.so.1".
Attaching to program: /my/app/here, process <processId>
ptrace: Operation not permitted.
/usr/local/bin/<processId>: No such file or directory.
(gdb) 

Answer 1

-, inetd, root. . , /proc/self/exe, 777. , . , , . root gdb - .

Answer 2

:

echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope

Answer 3

, tgoodhart, ptrace , /usr/bin/strace, gdb.

Answer 4

, , gdb , - , gdb. .

Answer 5

To solve the ur problem, run the following command:

sudo chmod + s / usr / bin / gdb