When run strace command in Ubuntu, I got an error:
strace: Could not attach to process. If your uid matches the uid of the target process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf: Operation not permitted
strace: attach: ptrace(PTRACE_SEIZE, 7604): Operation not permitted
Solution 1: Run as root
Solution 2: sudo sysctl -w kernel.yama.ptrace_scope=0
