On 07/26/2011 01:59 PM, Tom Horsley wrote: > tomh> strace -o working.trace rsh tomh date > rcmd: socket: Permission denied It's presumably being having its capabilities dropped because you are ptracing an executable with the cap_net_bind_service capability as an unprivileged user (if it wasn't it would be a security hole as a regular user could use a debugger to bind arbitrary privileged ports). Older releases had the same behaviour when ptracing SUID binaries - this is the same reason you cannot strace the ping command (requires a raw socket so is either SUID or cap_net_raw). Regards, Bryn. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines