[tzhenghao]

Another way to think of this is that the debugger is a tool, just like other familiar tools such as tcpdump, ping, traceroute, nslookup, nc (netcat) etc. Choosing the right tool for the right observations to make progress in squashing said bug(s) is key here. Sometimes, all you really need is a methodical approach in putting print statements in the right lines of code, or even pinging a host that doesn't seem like it's up in the first place.