SadServers Joined on September 10, 2023

 will not be shown, you would have to be root to see it all.)                   tcp        0      0 127.0.0.1:5000          0.0.0.0:*               LISTEN      admin@i-0c165f3a208accd57:~$ sudo netstat -tulnp | grep 5000                                                                                                    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:                                                      Sorry, try again.                                                               [sudo] password for admin:                                                                                                                                      

ca-certificates.conf    group            locale.gen       passwd          screenchrony                  group-           localtime        passwd-         securicloud                   grub.d           logcheck         perl            selinucloud-release           gshadow          login.defs       pm              serviccron.d                  gshadow-         logrotate.conf   ppp             sgml  cron.daily              gss              logrotate.d      profile         shadowcron.hourly             host.conf        machine-id       profile.d       shadowcron.monthly            hostname         magic            protocols       shellscron.weekly             hosts            magic.mime       python3         skel  crontab                 hosts.allow      manpath.config   python3.9       ssh   dbus-1                  hosts.deny       mime.types       rc0.d           ssl   debconf.conf            init.d           mke2fs.conf      rc1.d           subgiddebian_version          initramfs-tools  modprobe.d       rc2.d           subgidadmin@i-0041b2d33536d0a4a:~$ curl --user-agent "whatever" localhost:5000        Welcome! Password is FDZPmh5Aecho "somepassword" > ~/mysolution echo "somepasswo

/dev/nvme0n1p1   7.7G  6.1G  1.2G  84% /                                        tmpfs            228M   12K  228M   1% /dev/shm                                 tmpfs            5.0M     0  5.0M   0% /run/lock                                /dev/nvme0n1p15  124M  5.9M  118M   5% /boot/efi                                admin@i-0a86b1018e815bbc6:~$ ls -l                                              total 5245048                                                                   drwxr-xr-x 2 admin root       4096 Sep 17 17:28 agent                           drwxr-xr-x 2 admin root       4096 Nov 13 19:35 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-0a86b1018e815bbc6:~$ cd data                                            admin@i-0a86b1018e815bbc6:~/data$ ls -l                                         total 0                                                                         admin@i-0a86b1018e815bbc6:~/data$ cd ..                                         admin@i-0a86b1018e815bbc6:~$ du -sh da                                          

    222 ?        00:00:00 systemd-udevd                                             407 ?        00:00:00 dhclient                                                  483 ?        00:00:00 dhclient                                                  578 ?        00:00:00 gotty                                                     579 ?        00:00:00 sadagent                                                  592 ?        00:00:00 cron                                                      593 ?        00:00:00 dbus-daemon                                               595 ?        00:00:00 rsyslogd                                                  599 ?        00:00:00 chronyd                                                   600 ?        00:00:00 systemd-logind                                            613 ?        00:00:00 sshd                                                      621 tty1     00:00:00 agetty                                                    622 ttyS0    00:00:00 agetty                                                    623 ?        00:00:00 unattended-upgr                                       admin@i-03188ede5817cd0b3:~$ ps --ppid 1                                        

                                                                                Allocating group tables: done                                                   Writing inode tables: done                                                      Creating journal (8192 blocks): done                                            Writing superblocks and filesystem accounting information: done                                                                                                 admin@i-0ee543fd5d502e892:~$ df -h                                              Filesystem       Size  Used Avail Use% Mounted on                               udev             217M     0  217M   0% /dev                                     tmpfs             46M  372K   46M   1% /run                                     /dev/nvme0n1p1   7.7G  6.1G  1.2G  84% /                                        tmpfs            228M   12K  228M   1% /dev/shm                                 tmpfs            5.0M     0  5.0M   0% /run/lock                                /dev/nvme0n1p15  124M  5.9M  118M   5% /boot/efi                                admin@i-0ee543fd5d502e892:~$                                                    

fsck from util-linux 2.36.1                                                     e2fsck 1.46.2 (28-Feb-2021)                                                     ext2fs_open2: Bad magic number in super-block                                   fsck.ext2: Superblock invalid, trying backup blocks...                          fsck.ext2: Bad magic number in super-block while trying to open /dev/nvme2n1p1                                                                                  The superblock could not be read or does not describe a valid ext2/ext3/ext4    filesystem.  If the device is valid and it really contains an ext2/ext3/ext4    filesystem (and not swap or ufs or something else), then the superblock         is corrupt, and you might try running e2fsck with an alternate superblock:          e2fsck -b 8193 <device>                                                      or                                                                                 e2fsck -b 32768 <device>                                                                                                                                    admin@i-0eacfe699faffbd49:~$                                                    

admin@i-08b5e9edc7abcbde1:~$ ps -a                                                  PID TTY          TIME CMD                                                       661 pts/0    00:00:00 asciinema                                                 664 pts/0    00:00:00 asciinema                                                 666 pts/1    00:00:00 bash                                                      735 pts/1    00:00:00 ps                                                    admin@i-08b5e9edc7abcbde1:~$ ls                                                 agent  data  datafile  kihei                                                    admin@i-08b5e9edc7abcbde1:~$ cd data/                                           admin@i-08b5e9edc7abcbde1:~/data$ ls                                            admin@i-08b5e9edc7abcbde1:~/data$ cd ..                                         admin@i-08b5e9edc7abcbde1:~$ truncate                                           truncate: you must specify either ‘--size’ or ‘--reference’                     Try 'truncate --help' for more information.                                     admin@i-08b5e9edc7abcbde1:~$ truncate                                           

  Physical volume "/dev/nvme1n1" successfully created.                            Physical volume "/dev/nvme2n1" successfully created.                          root@i-0353e493b4516ec3d:~# lsblk -l                                            NAME       MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT                                  nvme1n1    259:0    0    1G  0 disk                                             nvme0n1    259:1    0    8G  0 disk                                             nvme0n1p1  259:2    0  7.9G  0 part /                                           nvme0n1p14 259:3    0    3M  0 part                                             nvme0n1p15 259:4    0  124M  0 part /boot/efi                                   nvme2n1    259:5    0    1G  0 disk                                             root@i-0353e493b4516ec3d:~# vgcreate vg /dev/nvme1n1 /dev/nvme2n1                 Volume group "vg" successfully created                                        root@i-0353e493b4516ec3d:~# lvcreate -n lv -l 100%FREE vg                         Logical volume "lv" created.                                                  root@i-0353e493b4516ec3d:~#                                                     

    #2) Think before you type.                                                      #3) With great power comes great responsibility.                                                                                                            [sudo] password for admin:                                                      Sorry, try again.                                                               [sudo] password for admin:                                                      sudo: 1 incorrect password attempt                                                                                                                              admin@i-0655e749fb08db274:~$ passwd admin                                       Changing password for admin.                                                    Current password:                                                               passwd: Authentication token manipulation error                                 passwd: password unchanged                                                      admin@i-0655e749fb08db274:~$ ^C                                                 admin@i-0655e749fb08db274:~$ sudo netstat -ltnp                                 

admin        695  0.1  3.0  24456 14368 pts/0    R<+  20:14   0:00 /usr/bin/pythadmin        696  0.0  0.1   2480   508 pts/1    S<s  20:14   0:00 sh -c /bin/baadmin        697  0.1  0.9   6820  4564 pts/1    S<   20:14   0:00 /bin/bash    admin        705  0.0  0.6   8648  3220 pts/1    R<+  20:14   0:00 ps aux       admin@i-06d8a1ea39f24c764:~$ netstat -nltp                                      (Not all processes could be identified, non-owned process info                   will not be shown, you would have to be root to see it all.)                   Active Internet connections (only servers)                                      Proto Recv-Q Send-Q Local Address           Foreign Address         State       tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      tcp        0      0 127.0.0.1:5000          0.0.0.0:*               LISTEN      tcp6       0      0 :::6767                 :::*                    LISTEN      tcp6       0      0 :::8080                 :::*                    LISTEN      tcp6       0      0 :::22                   :::*                    LISTEN      admin@i-06d8a1ea39f24c764:~$                                                    

admin@i-0b60297d6f837b165:~$ curl localhost:5000                                Unauthorizedadmin@i-0b60297d6curl --user-agent "whatever" localhost:5000calhost:Welcome! Password is FDZPmh5AX3oiJtadmin@i-0b60297d6f837b165:~$ echo "FDZPmh5AX3

main.main()                                                                             ./main.go:64 +0x47d                                                     admin@i-0d4b0d36217ba962c:~$ mv datafile.tmp ../                                mv: cannot move 'datafile.tmp' to '../datafile.tmp': Permission denied          admin@i-0d4b0d36217ba962c:~$ cd ..                                              admin@i-0d4b0d36217ba962c:/home$ ll                                             bash: ll: command not found                                                     admin@i-0d4b0d36217ba962c:/home$ ls                                             admin                                                                           admin@i-0d4b0d36217ba962c:/home$ ls -lah                                        total 12K                                                                       drwxr-xr-x  3 root  root  4.0K Sep 17 16:44 .                                   drwxr-xr-x 18 root  root  4.0K Nov 12 17:47 ..                                  drwxr-xr-x  7 admin admin 4.0K Nov 12 17:49 admin                               admin@i-0d4b0d36217ba962c:/home$                                                

=5,direct,pipe_ino=807)                                                         hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)            mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)             debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)     tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime)   fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatimconfigfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)  /dev/nvme0n1p15 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepaortname=mixed,utf8,errors=remount-ro)                                           admin@i-08f29920237256d8d:~$ free -m                                                           total        used        free      shared  buff/cache   availableMem:             455          73         213           0         168         369Swap:              0           0           0                                    admin@i-08f29920237256d8d:~$ man strace                                         admin@i-08f29920237256d8d:~$ strace ./kihei                                     

admin@i-0d41005ee6c018f55:~$ curl -A " "