luth may23

  1  systemctl stop httpd
    2  strace systemctl start httpd
    3  man man
    4  man 2 intro
    5  strace -c systemctl status httpd
    6  man 2 mmap
    7  strace -c ls *
    8  echo *
    9  strace -c echo *
   10  strace ls iuyhiuh
   11  useradd bob
   12  ldd $(which useradd)
   13  ltrace useradd bill
   14  man 3 selabel_close
   15  vim in_mind.txt
   16  history
   17  ps Zaux | grep http
   18  ls -Z /var/www
   19  ls -ldZ /var/tmp
   20  ls
   21  cat in_mind.txt
   22  dnf install -y git
   23  git clone https://github.com/sandervanvugt/luth
   24  cd luth/
   25  ls
   26  ./countdown 12
   27  mount | grep proc
   28  cd /proc
   29  ls
   30  less meminfo
   31  top
   32  cd
   33  ls -l /proc/sysrq-trigger
   34  echo h > /proc/sysrq-trigger
   35  dmesg
   36  history -w
   37  cd /proc/sys/kernel/
   38  ls
   39  cat sysrq
   40  man proc
   41  echo 1 > sysrq
   42  vim /etc/sysctl.conf
   43  echo h > /proc/sysrq-trigger
   44  dmesg
   45  echo f > /proc/sysrq-trigger
   46  systemctl set-property system.slice CPUShares=4096
   47  systemctl cat system.slice
   48  exit
   49  w
   50  chvt 2
   51  exit
   52  chvt 2
   53  exit
   54  cd /proc/sys
   55  ls
   56  cd vm
   57  ls
   58  man proc
   59  echo 2 > overcommit_memory
   60  dmesg
   61  pwd
   62  cat overcommit_memory
   63  free -m
   64  top
   65  cd
   66  cd luth/
   67  ./countdown 12
   68  ls
   69  cd ..
   70  git clone https://github.com/sandervanvugt/performance
   71  cd performance/
   72  ls
   73  cp stres* /etc/systemd/system/
   74  systemctl status stress1.service
   75  cat stress1.service
   76  cat stress2.service
   77  systemctl start stress1
   78  systemctl start stress2
   79  top
   80  cd /sys/
   81  ls
   82  cd /sys/bus/cpu/devices/
   83  ls
   84  ls -l */online
   85  echo 0 > cpu3/online
   86  echo 0 > cpu2/online
   87  echo 0 > cpu1/online
   88  history
   89  lscpu | less
   90  top
   91  dmesg
   92  cd /proc/sys/vm/
   93  echo 0 > overcommit_memory
   94  top
   95  systemd-cgtop
   96  systemd-cgls
   97  top
   98  killall dd
   99  cd /sys/bus/cpu/
  100  echo 1 > devices/cpu{1..3}/online
  101  echo 1 > devices/cpu[1..3]/online
  102  echo 1 > devices/cpu1/online
  103  echo 1 > devices/cpu2/online
  104  echo 1 > devices/cpu3/online
  105  lscpu
  106  systemctl show httpd.service
  107  systemctl status httpd
  108  systemctl start httpd
  109  systemctl status httpd
  110  systemctl stop httpd
  111  systemctl edit httpd
  112  systemctl start httpd
  113  systemctl status httpd
  114  systemctl stop httpd
  115  systemctl status httpd
  116  systemctl start httpd
  117  systemctl status httpd
  118  systemctl edit httpd.service
  119  cd
  120  cd luth/
  121  ./countdown 12
  122  man namespace
  123  man namespaces
  124  lsns
  125  ls /proc/*/ns
  126  dnf install -y zsh
  127  unshare --fork --pid --mount-proc zsh
  128  exit
  129  ps fax | less
  130  podman top --latest user huser
  131  exit
  132  history