admin@i-04a85d45f7bacbd59:~$ man curl                                           admin@i-04a85d45f7bacbd59:~$ alias                                              

admin        686  0.0  0.9   6740  4540 pts/0    S<s+ 22:25   0:00 bash -l      admin        690  0.8  4.1  98188 19416 pts/0    D<l+ 22:25   0:00 /usr/bin/pyth-t paris/i-07602503257110b80 -q -i 2 /var/log/cast/i-076025032571               admin        693  0.0  3.0  24456 14444 pts/0    R<+  22:25   0:00 /usr/bin/pyth-t paris/i-07602503257110b80 -q -i 2 /var/log/cast/i-076025032571               admin        694  0.0  0.1   2480   512 pts/1    S<s  22:25   0:00 sh -c /bin/baadmin        695  0.0  0.9   6820  4460 pts/1    S<   22:25   0:00 /bin/bash    admin        730  0.0  0.6   8648  3160 pts/1    R<+  22:26   0:00 ps aux       admin@i-07602503257110b80:~$ ps aux | grep nginx                                admin        732  0.0  0.1   5264   640 pts/1    S<+  22:26   0:00 grep nginx   admin@i-07602503257110b80:~$ ps aux | grep apache                               admin        734  0.0  0.1   5264   640 pts/1    S<+  22:26   0:00 grep apache  admin@i-07602503257110b80:~$ ls                                                 agent  webserver.py                                                             admin@i-07602503257110b80:~$ cat webserver.py                                   

                                                                                example:  knock myserver.example.com 123:tcp 456:udp 789:tcp                                                                                                    admin@i-080ac908debd2d3d7:~$ knock -v 127.0.0.1 80:tcp 1                        hitting tcp 127.0.0.1:80                                                        hitting tcp 127.0.0.1:1                                                         admin@i-080ac908debd2d3d7:~$ knock -v 127.0.0.1 80:tcp                          hitting tcp 127.0.0.1:80                                                        admin@i-080ac908debd2d3d7:~$ curl -D - -v localhost                             *   Trying 127.0.0.1:80...                                                      * connect to 127.0.0.1 port 80 failed: Connection refused                       * Failed to connect to localhost port 80: Connection refused                    * Closing connection 0                                                          curl: (7) Failed to connect to localhost port 80: Connection refused            admin@i-080ac908debd2d3d7:~$ nc -vv 12                                          

ss           ssh          ssh-add      ssh-agent    ssh-argv0    ssh-copy-id  ssadmin@i-0aa042ade078e1d14:~$ ss -tulnp | grep :5000                             tcp   LISTEN 0      128                          127.0.0.1:5000      0.0.0.0:*  admin@i-0aa042ade078e1d14:~$ ps ax | grep 128                                       845 pts/1    R<+    0:00 grep 128                                           admin@i-0aa042ade078e1d14:~$                                                    admin@i-0aa042ade078e1d14:~$                                                    admin@i-0aa042ade078e1d14:~$                                                    admin@i-0aa042ade078e1d14:~$ ls /etc/                                           Display all 153 possibilities? (y or n)                                         admin@i-0aa042ade078e1d14:~$ ls /etc/n                                          nanorc         netconfig      network/       networks       nsswitch.conf       admin@i-0aa042ade078e1d14:~$ ls /etc/n                                          nanorc         netconfig      network/       networks       nsswitch.conf       admin@i-0aa042ade078e1d14:~$ ls /etc/