admin@i-00ff22741d8109eed:~$ sudo mkfs -t ext4 -j -L new /dev/nvme1n1p1         mke2fs 1.46.2 (28-Feb-2021)                                                     Creating filesystem with 261883 4k blocks and 65536 inodes                      Filesystem UUID: 54fc8dad-097c-4d06-bf89-9f2b0cd181c8                           Superblock backups stored on blocks:                                                    32768, 98304, 163840, 229376                                                                                                                            Allocating group tables: done                                                   Writing inode tables: done                                                      Creating journal (4096 blocks): done                                            Writing superblocks and filesystem accounting information: done                                                                                                 admin@i-00ff22741d8109eed:~$ sudo mkdir /new                                    admin@i-00ff22741d8109eed:~$ sudo vim /etc/fstab                                admin@i-00ff22741d8109eed:~$ mount                                              

admin@i-09d35c7433d402b32:~$ ^C                                                 admin@i-09d35c7433d402b32:~$ ^C                                                 admin@i-09d35c7433d402b32:~$ ^C                                                 admin@i-09d35c7433d402b32:~$ ^C                                                 admin@i-09d35c7433d402b32:~$ ^C                                                 admin@i-09d35c7433d402b32:~$ ^C                                                 admin@i-09d35c7433d402b32:~$ ^C                                                 admin@i-09d35c7433d402b32:~$ ^C                                                 admin@i-09d35c7433d402b32:~$ ./kihei                                            panic: exit status 1                                                                                                                                            goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-09d35c7433d402b32:~$                                                    

-rw------- 1 admin admin        978 Mar  4 03:42 .viminfo                       drwxr-xr-x 2 admin root        4096 Sep 17 17:28 agent                          drwxr-xr-x 3 root  root       16384 Jan  1  1970 data                           -rw-r--r-- 1 root  root  5368709120 Sep 17 17:28 datafile                       -rwxr-xr-x 1 admin root     2207109 Sep 17 17:28 kihei                          admin@i-0a9241b92a4b01021:~$ cat /etc/fs                                        cat: /etc/fs: No such file or directory                                         admin@i-0a9241b92a4b01021:~$ cat /etc/fstab                                     # /etc/fstab: static file system information                                    UUID=811e12d8-f542-4650-9330-8d96633bd90c / ext4 rw,discard,errors=remount-ro,x-UUID=8690-F844 /boot/efi vfat defaultsrelatime,auto,uid=1000,gid=1000,umask=000 admin@i-0a9241b92a4b01021:~$ vim /etc/fstab                                     admin@i-0a9241b92a4b01021:~$ sudo !!                                            sudo vim /etc/fstab                                                             admin@i-0a9241b92a4b01021:~$ sudo systemctl r                                   

drwxr-xr-x 3 root  root       16384 Jan  1  1970 data                           -rw-r--r-- 1 root  root  5368709120 Sep 17 17:28 datafile                       -rwxr-xr-x 1 admin root     2207109 Sep 17 17:28 kihei                          admin@i-0e45767b31594566c:~$ chmod 777 data                                     chmod: changing permissions of 'data': Operation not permitted                  admin@i-0e45767b31594566c:~$ sudo  chmod 777 data                               admin@i-0e45767b31594566c:~$ ./kihei -v                                         Deleting file /home/admin/data/newdatafile...                                   panic: remove /home/admin/data/newdatafile: permission denied                                                                                                   goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:50 +0x48d                                                     admin@i-0e45767b31594566c:~$ rm /home/admin/data/newdatafile                    rm: remove write-protected regular empty file '/home/admin/data/newdatafile'? n 

root@i-09389fd6cff992e74:/home# ls                                              admin  admin1                                                                   root@i-09389fd6cff992e74:/home# cd admin                                        root@i-09389fd6cff992e74:/home/admin# ls                                        EFI  admin1                                                                     root@i-09389fd6cff992e74:/home/admin# cd admin1                                 root@i-09389fd6cff992e74:/home/admin/admin1# ls                                 agent  datafile  kihei                                                          root@i-09389fd6cff992e74:/home/admin/admin1# mv datafile ..                     root@i-09389fd6cff992e74:/home/admin/admin1# ls                                 agent  kihei                                                                    root@i-09389fd6cff992e74:/home/admin/admin1# mv kihei ..                        root@i-09389fd6cff992e74:/home/admin/admin1# ls                                 agent                                                                           root@i-09389fd6cff992e74:/home/admin/admin1#                                    

mv: cannot create directory '/boot/efi/usr/include': No space left on device    mv: cannot create directory '/boot/efi/usr/src': No space left on device        mv: cannot create directory '/boot/efi/usr/libexec': No space left on device    mv: cannot create directory '/boot/efi/usr/local': No space left on device      root@i-0309acbdfa892c707:/home/admin# ^C                                        root@i-0309acbdfa892c707:/home/admin# df                                        Filesystem      1K-blocks    Used Available Use% Mounted on                     udev               221828  221828         0 100% /dev                           tmpfs               46636     384     46252   1% /run                           /dev/nvme0n1p1    8026128 6354688   1242184  84% /                              tmpfs              233168      12    233156   1% /dev/shm                       tmpfs                5120       0      5120   0% /run/lock                      /dev/nvme0n1p15    126678  126678         0 100% /boot/efi                      tmpfs               46632       0     46632   0% /run/user/0                    root@i-0309acbdfa892c707:/home/admin# df                                        

0       dev/mapper                                                              0       dev/net                                                                 0       dev/mqueue                                                              0       dev/hugepages                                                           0       dev/shm                                                                 0       dev/disk/by-uuid                                                        0       dev/disk/by-partuuid                                                    0       dev/disk/by-path                                                        0       dev/disk/by-id                                                          0       dev/disk                                                                0       dev/block                                                               0       dev/char                                                                0       dev/pts                                                                 0       dev                                                                     root@i-00ba27f5bbd001932:/#                                                     

admin@i-0437e5e96664de44e:~$ ls -l                                              total 8                                                                         drwxr-xr-x 2 admin root 4096 Sep 24 23:20 agent                                 -rwxrwx--- 1 root  root  360 Sep 24 23:20 webserver.py                          admin@i-0437e5e96664de44e:~$ exit                                               

   23  2024-03-03T21:48:51 sudo cat webserver.py                                   24  2024-03-03T21:49:07 history                                              admin@i-019de3f6d11f21310:~$ tail /var/log/cast/i-019de3f6d11f21310             [279.597103, "o", "\b\u001b[K"]                                                 [279.747432, "o", "\b\u001b[K"]                                                 [279.938418, "o", "\b\u001b[K"]                                                 [280.087389, "o", "\b\u001b[K"]                                                 [280.339197, "o", "\b\u001b[K"]                                                 [280.50538, "o", "\b\u001b[K"]                                                  [280.685408, "o", "\b\u001b[K"]                                                 [280.863917, "o", "\b\u001b[K"]                                                 [285.590638, "o", "\u001b[7m/var/log/cast/i-019de3f6d11f21310\u001b[27m"]       [286.335788, "o", "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\e3f6d11f21310\r\n\u001b[?2004l\r"]                                              admin@i-019de3f6d11f21310:~$ tail /var/log/cast/i-019de3f6d11f21310             

    debian_chroot=$(cat /etc/debian_chroot)                                     fi                                                                                                                                                              # set a fancy prompt (non-color, unless we know we "want" color)                case "$TERM" in                                                                     xterm-color|*-256color) color_prompt=yes;;                                  esac                                                                                                                                                            # uncomment for a colored prompt, if the terminal has the capability; turned    # off by default to not distract the user: the focus in a terminal window       # should be on the output of commands, not on the prompt                        #force_color_prompt=yes                                                                                                                                         if [ -n "$force_color_prompt" ]; then                                           .bashrc                                                                         

                                                                                goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-0c9554bbe26a61062:~$ mv datafile data                                   admin@i-0c9554bbe26a61062:~$ ls                                                 agent  data  kihei                                                              admin@i-0c9554bbe26a61062:~$ ./kihei -v                                         Creating file /home/admin/data/newdatafile with size 1.5GB...                   panic: exit status 1                                                                                                                                            goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-0c9554bbe26a61062:~$                                                    

admin        740  0.0  0.1   2480   512 pts/1    S<s  03:27   0:00 sh -c /bin/baadmin        741  0.0  0.9   6820  4524 pts/1    S<   03:27   0:00 /bin/bash    root         744  0.0  0.9   9336  4588 pts/1    S<   03:27   0:00 sudo su      root         745  0.0  0.9   8672  4480 pts/1    S<   03:27   0:00 su           root         747  0.1  1.6  15048  7636 ?        Ss   03:27   0:00 /lib/systemd/root         748  0.0  0.5 101096  2640 ?        S    03:27   0:00 (sd-pam)     root         753  0.0  0.7   6052  3720 pts/1    S<   03:27   0:00 bash         root         760  0.0  0.9   8672  4476 pts/1    S<   03:27   0:00 su admin     admin        761  0.0  0.9   6824  4524 pts/1    S<   03:27   0:00 bash         admin        770  0.0  0.6   8648  3164 pts/1    R<+  03:28   0:00 ps aux       admin@i-0f837dbf94cba2c30:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-0f837dbf94cba2c30:~$ type kihei                                         bash: type: kihei: not found                                                    admin@i-0f837dbf94cba2c30:~$ f                                                  

admin@i-012952269c8a299f9:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-012952269c8a299f9:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-012952269c8a299f9:~$                                                    

admin@i-01938499a23dd6d8b:~$ curl http://localhost:5000                         Unauthorizedadmin@i-01938499a23dd6d8b:~$ curl https://localhost:5000            curl: (35) error:1408F10B:SSL routines:ssl3_get_record:wrong version number     admin@i-01938499a23dd6d8b:~$ strace -p 573                                      strace: attach: ptrace(PTRACE_SEIZE, 573): Operation not permitted              admin@i-01938499a23dd6d8b:~$ sudo strace -p 573                                                                                                                 We trust you have received the usual lecture from the local System              Administrator. It usually boils down to these three things:                                                                                                         #1) Respect the privacy of others.                                              #2) Think before you type.                                                      #3) With great power comes great responsibility.                                                                                                            [sudo] password for admin: