programB 2> /var/log/programB.log 1> /dev/nullThe 3rd column which is exciting may be the TTL=sixty four. TTL - "aka. Time and energy to Reside", imply the packet will only transverse by means of at most sixty four nodes in advance of timing out. So Should the program is over sixty four "hops" absent from your system, You can not ping it, Unless of