#2) Think before you type.                                                      #3) With great power comes great responsibility.                                                                                                            [sudo] password for admin:                                                                                                                                      Sorry, try again.                                                               [sudo] password for admin:                                                      Sorry, try again.                                                               [sudo] password for admin:                                                      sudo: 2 incorrect password attempts                                             admin@i-052bf5d2c561574ad:~$ ls                                                 agent  webserver.py                                                             admin@i-052bf5d2c561574ad:~$ cat webserver.py                                   cat: webserver.py: Permission denied                                            admin@i-052bf5d2c561574ad:~$ sudo                                               

) = 62                                                                          write(2, "\n", 1                                                                )                       = 1                                                     write(2, " -h, --help     display this hel"..., 43 -h, --help     display this h) = 43                                                                          write(2, " -V, --version  output version i"..., 52 -V, --version  output version) = 52                                                                          write(2, "\nFor more details see kill(1).\n", 31                                For more details see kill(1).                                                   ) = 31                                                                          close(1)                                = 0                                     close(2)                                = 0                                     exit_group(1)                           = ?                                     +++ exited with 1 +++                                                           admin@i-0de4c1da0297b07ea:~$                                                    

  Volume group "mon_vg" successfully created                                    admin@i-01f9eac839ff463e1:~$ lvcreate -l 100%FREE -n mon_lv mon_ng                WARNING: Running as a non-root user. Functionality may be unavailable.          /dev/mapper/control: open failed: Permission denied                             Failure to communicate with kernel device-mapper driver.                        Incompatible libdevmapper 1.02.175 (2021-01-08) and kernel driver (unknown ver  striped: Required device-mapper target(s) not detected in your kernel.          Run `lvcreate --help' for more information.                                   admin@i-01f9eac839ff463e1:~$ sudo lvcreate -l 100%FREE -n mon_lv mon_vg           Logical volume "mon_lv" created.                                              admin@i-01f9eac839ff463e1:~$ mount /home/admin/data                             data/     datafile                                                              admin@i-01f9eac839ff463e1:~$ mount /home/admin/data                             data/     datafile                                                              admin@i-01f9eac839ff463e1:~$ mount /home/admin/data                             

Writing inode tables: done                                                      Creating journal (8192 blocks): done                                            Writing superblocks and filesystem accounting information: done                                                                                                 admin@i-0049035e2f3e403d7:~$ lsblk                                              NAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT                             nvme1n1         259:0    0    1G  0 disk                                        └─mon_vg-mon_lv 254:0    0    2G  0 lvm                                         nvme0n1         259:1    0    8G  0 disk                                        ├─nvme0n1p1     259:3    0  7.9G  0 part /                                      ├─nvme0n1p14    259:4    0    3M  0 part                                        └─nvme0n1p15    259:5    0  124M  0 part /boot/efi                              nvme2n1         259:2    0    1G  0 disk                                        └─mon_vg-mon_lv 254:0    0    2G  0 lvm                                         admin@i-0049035e2f3e403d7:~$                                                    

admin@i-0d4a460d5b773266b:~$ curl --user-agent "whatever" localhost:5000        Welcome! Password is FDZPmh5AX3oiJtadmin@i-0d4a460d5b773266b:~$ nc localhost 500                                                                                

admin@i-03cc4a6cf511fa48a:~$ admin@i-03cc4a6cf511fa48a:~$ curl                  

)                       = 1                                                     exit_group(2)                           = ?                                     +++ exited with 2 +++                                                           admin@i-07b0bfaf3654c22d6:~$ sudo apt install fallocate                         Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is heWaiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is heWaiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is heWaiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is he^Ced-upgr)... 3s                                                                admin@i-07b0bfaf3654c22d6:~$ sudo -s                                            root@i-07b0bfaf3654c22d6:/home/admin# ps aux | grep 871                         root         871 84.8 17.0  90112 79716 ?        S    16:36   0:30 /usr/bin/pythpgrade                                                                          root         919  0.0  0.1   5264   700 pts/1    R<+  16:37   0:00 grep 871     root@i-07b0bfaf3654c22d6:/home/admin# k                                         

admin@i-0930e907037f9c48f:~$ ms                                                 bash: ms: command not found                                                     admin@i-0930e907037f9c48f:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-0930e907037f9c48f:~$ ./kihei                                            panic: exit status 1                                                                                                                                            goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-0930e907037f9c48f:~$ ms                                                 

admin@i-0c65c8a19e3a6fdc8:~$ ls /home/admin/kihei                               /home/admin/kihei                                                               admin@i-0c65c8a19e3a6fdc8:~$ ls /home/admin/kihei                               .ansible/     .bash_logout  .bashrc       .config/      .profile      .ssh/     admin@i-0c65c8a19e3a6fdc8:~$ ls /home/admin/kihei                               /home/admin/kihei                                                               admin@i-0c65c8a19e3a6fdc8:~$ ls /home/admin/kihei                               /home/admin/kihei                                                               admin@i-0c65c8a19e3a6fdc8:~$ ls /home/admin/kihei                               /home/admin/kihei                                                               admin@i-0c65c8a19e3a6fdc8:~$ ls /home/admin/kihei                               /home/admin/kihei                                                               admin@i-0c65c8a19e3a6fdc8:~$ ls /home/admin/kihei/                              ls: cannot access '/home/admin/kihei/': Not a directory                         admin@i-0c65c8a19e3a6fdc8:~$ ls /home/admin/kihei                               

root         588  0.1  0.3   2872  1652 tty1     Ss+  15:43   0:00 /sbin/agetty -o -p -- \u --noclear tty1 linux                                                root         590  0.0  0.4   4396  2140 ttyS0    Ss+  15:43   0:00 /sbin/agetty -o -p -- \u --keep-baud 115200,57600,38400,9600 ttyS0 vt220                     root         591  0.0  1.5  13352  7188 ?        Ss   15:43   0:00 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups                                      _chrony      593  0.0  0.7  10852  3596 ?        S    15:43   0:00 /usr/sbin/chronyd -F 1                                                                       _chrony      604  0.0  0.1  10724   552 ?        S    15:43   0:00  \_ /usr/sbin/chronyd -F 1                                                                   root         603  0.0  3.7  26612 17364 ?        Ss   15:43   0:00 /usr/bin/python3 /usr/share/unattended-upgrades/unattended-upgrade-shutdown --wait-for-signaladmin@i-001eabc18e1752db3:~$ cat ~/webserver.py                                 cat: /home/admin/webserver.py: Permission denied                                admin@i-001eabc18e1752db3:~$                                                    

admin@i-035dc5f8dfa57f494:~$ ^[[200~nc localhost 5000                           bash: $'\E[200~nc': command not found                                           admin@i-035dc5f8dfa57f494:~$ nc localhost 5000                                  GET                                                                             

Unknown command verb run.                                                       admin@i-08bac8ee245e1ff86:~$ cd /home/admin/kihei                               bash: cd: /home/admin/kihei: Not a directory                                    admin@i-08bac8ee245e1ff86:~$ cd /home/admin/                                    admin@i-08bac8ee245e1ff86:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-08bac8ee245e1ff86:~$ sudo chmod +x kihei                                admin@i-08bac8ee245e1ff86:~$ sudo kihei                                         sudo: kihei: command not found                                                  admin@i-08bac8ee245e1ff86:~$ sudo ./kihei                                       Error: This program cannot be run as the 'root' superuser.                      admin@i-08bac8ee245e1ff86:~$ sudo chmod 755 kihei                               admin@i-08bac8ee245e1ff86:~$ sudo ./kihei                                       Error: This program cannot be run as the 'root' superuser.                      admin@i-08bac8ee245e1ff86:~$ sudo chmod 755 ./kihei                             

cation_time=None access_time=None group=None seuser=None serole=None selevel=Nonne                                                                              Sep 24 23:20:38 i-03be7122de01cf0bf ansible-replace: Invoked with path=/etc/clouplace=#sudo: backup=False encoding=utf-8 unsafe_writes=False after=None before=N owner=None group=None seuser=None serole=None selevel=None setype=None attributSep 24 23:20:39 i-03be7122de01cf0bf ansible-replace: Invoked with path=/etc/clouud.cfg regexp=sudo: replace=#sudo: backup=False encoding=utf-8 unsafe_writes=Falalidate=None mode=None owner=None group=None seuser=None serole=None selevel=Nonne                                                                              Sep 24 23:20:40 i-03be7122de01cf0bf ansible-file: Invoked with path=/etc/sudoerse=absent recurse=False force=False follow=True modification_time_format=%Y%m%d%H%m%d%H%M.%S unsafe_writes=False _original_basename=None _diff_peek=None src=Noneess_time=None mode=None owner=None group=None seuser=None serole=None selevel=Noone                                                                             (END)                                                                           

cast/                  dpkg.log               messages.2.gz          user.log.2.chrony/                dpkg.log.1             minio.log              wtmp       admin@i-069e102734ffdd250:~$ less /var/log/messages                             admin@i-069e102734ffdd250:~$ cd /var/log/                                       admin@i-069e102734ffdd250:/var/log$ ls                                          alternatives.log    cast                   debug.1     kern.log.2.gz  syslog    alternatives.log.1  chrony                 debug.2.gz  lastlog        syslog.1  apt                 cloud-init-output.log  dpkg.log    messages       syslog.2.gauth.log            cloud-init.log         dpkg.log.1  messages.1     unattendedauth.log.1          daemon.log             faillog     messages.2.gz  user.log  auth.log.2.gz       daemon.log.1           journal     minio.log      user.log.1btmp                daemon.log.2.gz        kern.log    private        user.log.2btmp.1              debug                  kern.log.1  runit          wtmp      admin@i-069e102734ffdd250:/var/log$ less auth.log                               admin@i-069e102734ffdd250:/var/log$ less