admin@i-0dad2dbc8977defc7:~$ ls                                                 agent  webserver.py                                                             admin@i-0dad2dbc8977defc7:~$ who ami                                            admin@i-0dad2dbc8977defc7:~$ whoami                                             admin                                                                           admin@i-0dad2dbc8977defc7:~$                                                    

write(2, "main.main", 9main.main)                = 9                            write(2, "(", 1()                        = 1                                    write(2, ")\n", 2)                                                              )                      = 2                                                      write(2, "\t", 1        )                       = 1                             write(2, "./main.go", 9./main.go)                = 9                            write(2, ":", 1:)                        = 1                                    write(2, "64", 264)                       = 2                                   write(2, " +", 2 +)                       = 2                                   write(2, "0x47d", 50x47d)                    = 5                                write(2, "\n", 1                                                                )                       = 1                                                     exit_group(2)                           = ?                                     +++ exited with 2 +++                                                           admin@i-0d5d23f0b5a1bb4ec:~$ strace ./kihei                                     

    567 ?        Ssl    0:00 /usr/sbin/rsyslogd -n -iNONE                           570 ?        Ss     0:00 /lib/systemd/systemd-logind                            572 tty1     Ss+    0:00 /sbin/agetty -o -p -- \u --noclear tty1 linux          573 ttyS0    Ss+    0:00 /sbin/agetty -o -p -- \u --keep-baud 115200,57600,3    587 ?        S      0:00 /usr/sbin/chronyd -F 1                                 588 ?        Ss     0:00 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 star    589 ?        S      0:00 /usr/sbin/chronyd -F 1                                 608 ?        Ss     0:00 /usr/bin/python3 /usr/share/unattended-upgrades/una    681 pts/0    S<s+   0:00 bash -l                                                685 pts/0    S<l+   0:00 /usr/bin/python3 /usr/bin/asciinema rec -t paris/i-    688 pts/0    R<+    0:00 /usr/bin/python3 /usr/bin/asciinema rec -t paris/i-    689 pts/1    S<s    0:00 sh -c /bin/bash                                        690 pts/1    S<     0:00 /bin/bash                                              741 pts/1    R<+    0:00 ps -ax                                             admin@i-06e8ffe7f101ff487:~$                                                    

total 5245048                                                                   drwxr-xr-x 2 admin root       4096 Sep 17  2023 agent                           drwxr-xr-x 2 admin root       4096 Feb 26 00:50 data                            -rw-r--r-- 1 admin root 5368709120 Sep 17  2023 datafile                        -rwxr-xr-x 1 admin root    2207109 Sep 17  2023 kihei                           admin@i-0f9aeca12a8d8e203:~$ ./kihei datafile                                   panic: exit status 1                                                                                                                                            goroutine 1 [running]:                                                          main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-0f9aeca12a8d8e203:~$ mv datafile ..                                     mv: cannot move 'datafile' to '../datafile': Permission denied                  admin@i-0f9aeca12a8d8e203:~$ sudo mv datafile ..                                admin@i-0f9aeca12a8d8e203:~$                                                    

admin@i-0e4ebb3175e1346a0:~$ cd /home/admin/                                    admin@i-0e4ebb3175e1346a0:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-0e4ebb3175e1346a0:~$ cat kihei                                          

  VG Status             resizable                                                 MAX LV                0                                                         Cur LV                0                                                         Open LV               0                                                         Max PV                0                                                         Cur PV                2                                                         Act PV                2                                                         VG Size               1.99 GiB                                                  PE Size               4.00 MiB                                                  Total PE              510                                                       Alloc PE / Size       0 / 0                                                     Free  PE / Size       510 / 1.99 GiB                                            VG UUID               CiiArg-F5qY-EuED-nh9m-Zsu2-no3o-15S9if                                                                                                  root@i-0f5d7ad8608a841ca:~# lvcreate -n lv -l 100%FR                            

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-04966c33644a4332f:~$ ps -fe | gr                                        

admin@i-05afb2f0462ee35dd:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-05afb2f0462ee35dd:~$ pwd                                                /home/admin                                                                     admin@i-05afb2f0462ee35dd:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-05afb2f0462ee35dd:~$                                                    

admin        771     697  0 16:53 pts/1    00:00:00 more                        admin@i-09f185fddd1e81888:~$ history                                                1  2023-09-20T15:57:57 > /home/admin/.bash_history                              2  2023-09-20T15:58:02 exit                                                     3  2025-03-07T16:52:03 sudo su -                                                4  2025-03-07T16:52:06 ls -l                                                    5  2025-03-07T16:52:14 lsof -i :5000                                            6  2025-03-07T16:52:18 sudo lsof -i :5000                                       7  2025-03-07T16:52:22 ps -ef                                                   8  2025-03-07T16:52:38 nstat -tlnp                                              9  2025-03-07T16:52:44 netstat -tlnp                                           10  2025-03-07T16:52:56 systemctl status                                        11  2025-03-07T16:53:15 ps -ef  | more                                          12  2025-03-07T16:54:05 history                                              admin@i-09f185fddd1e81888:~$ ls -l /home/admin/webserver.py                     

-rw-r--r-- 1 admin admin  807 Aug  4  2021 .profile                             drwx------ 2 admin admin 4096 Sep 17  2023 .ssh                                 drwxr-xr-x 2 admin root  4096 Sep 24  2023 agent                                -rwxrwx--- 1 root  root   360 Sep 24  2023 webserver.py                         admin@i-049d7de41c1f65c5b:~$ python webserver.py                                bash: python: command not found                                                 admin@i-049d7de41c1f65c5b:~$ python3 webserver.py                               python3: can't open file '/home/admin/webserver.py': [Errno 13] Permission denieadmin@i-049d7de41c1f65c5b:~$ systemctl status | grep nginx                                     └─838 grep nginx                                                 admin@i-049d7de41c1f65c5b:~$ ls                                                 agent  webserver.py                                                             admin@i-049d7de41c1f65c5b:~$ ls agent                                           check.sh  sadagent  sadagent.txt                                                admin@i-049d7de41c1f65c5b:~$ curl localhost:50000                               

> GET / HTTP/1.1                                                                > Host: localhost:5000                                                          > User-Agent: curl/7.74.0                                                       > Accept: */*                                                                   >                                                                               * Mark bundle as not supporting multiuse                                        < HTTP/1.1 200 OK                                                               < Server: Werkzeug/2.3.7 Python/3.9.2                                           < Date: Wed, 12 Mar 2025 13:07:13 GMT                                           < Content-Type: text/html; charset=utf-8                                        < Content-Length: 12                                                            < Connection: close                                                             <                                                                               * Closing connection 0                                                          Unauthorizedadmin@i-07cad8a6e42aaf197:~$ cat /etc/                              

admin@i-0056f640165073864:~$                                                    admin@i-0056f640165073864:~$                                                    admin@i-0056f640165073864:~$                                                    admin@i-0056f640165073864:~$ curl -A "Mozilla/5.                                

nvme0n1    259:0    0    8G  0 disk                                             nvme2n1    259:1    0    1G  0 disk                                             nvme1n1    259:2    0    1G  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                                   admin@i-07811c3a73cb0d954:~$ ./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-07811c3a73cb0d954:~$ sudo mount /dev/vg/lv /home/admin/data             admin@i-07811c3a73cb0d954:~$ df