AWS:

let me in

• login -> click on Security Groups on the NETWORK & SECURITY left-hand tab -> edit/add the Inbound rule
• this is gonna help

OS:

what does traceroute do

• trace the route through which a packet would be sent from some current machine to another host
• flow:
  1. traceroute each time sends three packets with the same number of ttl (and the number is increased by one in the next time)
  2. Note that ttl may be viewed as ‘energy points’ – each encountered gateway will reduce/cost it by one.
  3. Each line (begins from ‘1.’) from the output of traceroute indicates three parts:

       the number of ttl of this run
       the gateway/host's ip
       the three separate empirical rtt the corresponding packets take
     

  4. the asterisk sign may be thought as ‘time out’ to this point

how/why to change ur (default) dns server

    dig @208.67.222.222 csie.ntu.edu.tw  # dig from some nameserver to some domain

• check this

Charity:

just donate to hand in hand in A BENEFIT FOR HURRICAN RELIEF – hope that helps (maximum effort)

also consider sending my shoes to 舊鞋救命

TODO:

what about a gps tracking system on my computers?

what about learning Wing Chun?

Songs:

• The World As I See It