Ruth prerelease nov23 day1

oot@localhost system]# history
    1  echo 0 > /sys/bus/cpu/devices/cpu1/online
    2  exit
    3  echo 1 > /sys/bus/cpu/devices/cpu1/online
    4  killall dd
    5  exit
    6  systemctl status sshd
    7  systemctl disable --now sshd.socket
    8  systemctl disable --now sshd.service
    9  systemctl show sshd.service
   10  systemctl edit sshd.service
   11  systemctl disable --now sshd.socket
   12  systemctl start sshd.service
   13  systemctl cat sshd.service
   14  systemctl status sshd.service
   15  systemctl show sshd.service
   16  man systemd.directives
   17  systemctl edit sshd.service
   18  systemctl cat sshd.service
   19  systemctl status sshd.service
   20  cat /etc/fstab
   21  systemctl list-units -t mount
   22  systemctl list-units -t swap
   23  cd /run/systemd/generator/
   24  ls
   25  cat boot.mount
   26  cp boot.mount /etc/systemd/system/
   27  cd /etc/systemd/system/
   28  cat boot.mount
   29  systemctl enable boot.mount
   30  systemctl status.service
   31  systemctl status ssh.service
   32  systemctl status sshd.service
   33  systemctl cat sshd.service
   34  systemctl list-dependencies
   35  pwd
   36  vim boot.mount
   37  umount /boot
   38  mount | grep boot
   39  systemctl enable --now boot.mount
   40  vim /etc/fstab
   41  reboot
   42  systemctl cat sshd.service
   43  systemctl -t help
   44  systemctl status sshd
   45  journalctl -u sshd
   46  journalctl -ux sshd
   47  journalctl -xu sshd
   48  systemctl status
   49  systemctl stop sshd; systemctl start sshd
   50  systemctl cat sshd
   51  systemctl status sshd
   52  kill -9 3373
   53  systemctl status sshd
   54  systemctl cat sshd.socket
   55  systemctl disable --now sshd
   56  systemctl status sshd
   57  ps aux | grep sshd
   58  systemctl enable --now sshd.socket
   59  ps aux | grep ssh
   60  systemctl status sshd
   61  ssh localhost
   62  ssh student@localhost
   63  systemctl status boot.mount
   64  cd /run/systemd/generator/
   65  cat -.mount
   66  cat -- -.mount
   67  cp -- -.mount /etc/systemd/system/
   68  cd /etc/systemd/system/
   69  vim -- -.mount
   70  systemctl enable --now -- -.mount
   71  vim /etc/default/grub
   72  vim /boot/grub2/grub.cfg
   73  vim /etc/fstab
   74  reboot
   75  ls /run/systemd/generator/
   76  cat /etc/fstab
   77  cd /boot/grub2/
   78  vim grub.cfg
   79  cd /etc/default/
   80  vim grub
   81  grub2-mkconfig -o /boot/grub2/grub.cfg
   82  reboot
   83  systemctl start graphical.target
   84  vim hello
   85  ls -l /etc/shadow
   86  cat /etc/shadow
   87  mv /etc/passwd /etc/passwd.bak
   88  reboot
   89  ls -Z /etc/passwd
   90  df -h
   91  ls -l /dev/mapper/cs-root
   92  ls -l /dev/dm-0
   93  less /proc/devices
   94  lsmod
   95  lsmod | grep dm
   96  ls
   97  ls /home/student/
   98  /home/student/containers/countdown 30
   99  ldd $(which ls)
  100  cd /proc
  101  ls
  102  cd 4634
  103  ls
  104  cat cmdline
  105  cd
  106  ps aux | grep fire
  107  cd /proc/5072
  108  cat cmdline
  109  ls
  110  cd fd
  111  ls -l | less
  112  stat /bin/ls
  113  cd
  114  reboot
  115  modprobe -c | grep cdrom
  116  cd /sys/module/cdrom/
  117  ls
  118  pwd
  119  cd /etc/modprobe.d/
  120  vim cdrom.conf
  121  reboot
  122  modprobe -c | grep cdrom
  123  cd /sys/module/cdrom/
  124  ls
  125  ls sections/
  126  cat sections/__param
  127  cd
  128  ls
  129  /home/student/containers/countdown 10
  130  cd /proc
  131  cat cpuinfo
  132  grep vmx cpuinfo
  133  lscpu
  134  less meminfo
  135  cat cmdline
  136  cat vmstat
  137  cat modules
  138  lsmod
  139  cat filesystems
  140  cat devices
  141  cat swaps
  142  cat mounts
  143  cat /etc/mtab
  144  ls
  145  cd 2403
  146  ls
  147  cat status
  148  ps aux | grep 2402
  149  cd /proc
  150  ls
  151  cd sys
  152  ls
  153  cd net
  154  ls
  155  cd ipv6
  156  ls
  157  sysctl -a
  158  sysctl -a | grep disable
  159  cd conf
  160  cd all/
  161  ls
  162  ip a
  163  echo 1 > disable_ipv6
  164  ip a
  165  sysctl -a | grep disable
  166  vim /etc/sysctl.d/50-disable-ipv6.conf
  167  cd /proc
  168  ls
  169  echo h > /proc/sysrq-trigger
  170  dmesg
  171  history -w
  172  dnf install -y watchdog
  173  systemctl enable --now watchdog
  174  systemctl status watchdog
  175  modprobe -i softdog
  176  history -w
  177  dnf install -y bpftrace
  178  git clone https://github.com/sandervanvugt/luth
  179  cd luth/
  180  ls
  181  less disk_io.bt
  182  bpftrace disk_io.bt
  183  history
  184  [email protected]
  185  cd ..
  186  git clone https://github.com/sandervanvugt/bash
  187  git clone https://github.com/sandervanvugt/bash-scripting
  188  cd bash-scripting/
  189  ls
  190  vim network
  191  cd /usr/lib/systemd/system
  192  ls
  193  vim sshd.service
  194  cd /etc/systemd/system/
  195  ls
  196  systemctl edit sshd.service
  197  export EDITOR=/usr/bin/vim
  198  systemctl edit sshd.service
  199  systemctl cat sshd.service
  200  systemctl status sshd.service
  201  systemctl disable --now sshd.socket
  202  systemctl enable --now sshd.service
  203  systemctl status sshd.service
  204  systemctl edit sshd.service
  205  systemctl status sshd.service
  206  kill -9 24338
  207  systemctl status sshd.service
  208  systemctl -t help
  209  ls -l /etc/cron*/
  210  systemctl list-unit-files cups*
  211  systemctl disable --now sshd
  212  systemctl enable --now sshd.socket
  213  ss -tunap | grep 22
  214  systemctl status sshd
  215  ssh student@localhost
  216  systemctl cat sshd.socket
  217  systemctl status sshd.socket
  218  systemctl status sshd.service
  219  systemctl show sshd.service
  220  man systemd.directives
  221  man systemd.exec
  222  systemctl edit sshd.service
  223  history


UEFI system
[root@localhost ~]# history
    1  grub2-set-password
    2  usermod -aG wheel student
    3  reboot
    4  xxd -l 512 /dev/sda
    5  dnf provides */grubx64.efi
    6  man dnf
    7  rm /boot/efi/EFI/redhat/grubx64.efi
    8  cd /boot/efi/EFI/centos/
    9  ls
   10  rm -f grubx64.efi
   11  reboot
   12  lsblk
   13  xxd -l 512 /dev/sda
   14  ls
   15  cd trouble/
   16  ls
   17  ./countdown 10
   18  cd /boot/efi/
   19  ls
   20  cd EFI
   21  ls
   22  tree
   23  efibootdump
   24  efibootmgr
   25  reboot
   26  free -
   27  free -m
   28  cd /etc/default/
   29  vim grub
   30  cd /boot/grub2
   31  ls -l
   32  cd ../
   33  cd efi/EFI/centos/
   34  ,s
   35  ls
   36  ls -l grub.cfg
   37  #grub2-mkconfig -o /boot/grub2/grub.cfg
   38  cp /boot/grub2/grub.cfg /boot/grub2/grub.cfg.bak
   39  grub2-mkconfig -o /boot/grub2/grub.cfg
   40  reboot
   41  free -m
   42  systemctl status mount.target
   43  systemctl status boot.mount
   44  mount | grep boot
   45  cat /etc/fstab
   46  cd /run/systemd/generator/
   47  ls
   48  cp boot-efi.mount /etc/systemd/system/
   49  cp -- -.mount /etc/systemd/system
   50  cd /etc/systemd/system/
   51  vim boot-efi.mount
   52  systemctl enable --now boot-efi.mount
   53  systemctl list-dependencies
   54  vim -- -.mount
   55  systemctl enable -- -.mount
   56  vim /etc/fstab
   57  reboot
   58  mount -o remount,rw /
   59  systemctl start multi-user.target
   60  touch hhh
   61  cat /etc/fstab
   62  vim /etc/default/grub
   63  ls -l /boot/grub2/grub.cfg
   64  grub2-mkconfig -o /boot/grub2/grub.cfg
   65  reboot
   66  history