l3h feb21

####ubuntu enable ssh
student@student-virtual-machine:~$ history
    1  ip addr
    2  sudo apt install openssh-server
    3  sudo systemctl status sshd
    4  history
    5  exit
    6  history


####centos
[student@l3h /]$ history
    1  vim countdown
    2  countdown 12
    3  ls
    4  echo $PATH
    5  ./countdown 12
    6  ls -l
    7  chmod +x countdown
    8  ls -l
    9  vimtutor
   10  ./countdown 12
   11  ls
   12  file countdown
   13  mv countdown countdown.sh
   14  ls
   15  PATH=$PATH:.
   16  ls
   17  echo $PATH
   18  cd /
   19  ls
   20  cd /usr
   21  ls
   22  cd local/
   23  pwd
   24  ls
   25  cd
   26  pwd
   27  ls
   28  cp countdown.sh /usr/local/bin/countdown
   29  ls -ld .
   30  ls -ld /usr/local/bin
   31  whoami
   32  id
   33  sudo cp countdown.sh /usr/local/bin/countdown
   34  echo $PATH
   35  countdown 0
   36  history
   37  chvt 3
   38  sudo chvt 3
   39  useradd linda
   40  sudo useradd linda
   41  sudo passwd linda
   42  sudo chvt 3
   43  su - linda
   44  id
   45  id linda
   46  sudo usermod -aG wheel linda
   47  id linda
   48  su - linda
   49  su -
   50  sudo -i
   51  sudo su
   52  history
   53  sudo -i
   54  vim hello
   55  nano hello
   56  systemctl status sshd
   57  systemctl edit sshd
   58  sudo systemctl edit sshd
   59  export EDITOR=/usr/bin/vim
   60  sudo systemctl edit sshd
   61  sudo -i
   62  sudo vim /etc/profile.d/editor.sh
   63  echo helo
   64  echo hello > hellofile
   65  cat hellofile
   66  ls -a
   67  who > hellofile
   68  cat hello
   69  cat hellofile
   70  echo hello >> hellofile
   71  history
   72  countdown 12
   73  sudo dnf install git
   74  git clone https://github.com/sandervanvugt/linuxin3hours
   75  cd linuxin3hours/
   76  ls
   77  cd
   78  man hier
   79  cd /
   80  ls
   81  cd /home
   82  ls -l
   83  cd $USER
   84  pwd
   85  touch afile
   86  cd /tmo
   87  cd /tmp
   88  ls
   89  cd /etc
   90  ls
   91  cat motd
   92  cat passwd
   93  cat shadow
   94  ls -l shadow
   95  sudo tail -1 /etc/shadow
   96  man -k user
   97  man -k sander
   98  sudo mandb
   99  man -k user
  100  man -k user | wc
  101  man -k user
  102  man man
  103  man -k user
  104  man -k user | grep 8
  105  man -k user | grep 8 | grep create
  106  ssh student@192.168.29.28
  107  find / -name "hier*"
  108  find / -name "hier*" 2>/dev/null
  109  rpm -qf /usr/share/man/man7/hier.7.gz
  110  sudo ps aux
  111  sudo ps aux | grep ssh
  112  sudo top
  113  sudo systemctl status sshd
  114  sudo systemctl stop sshd
  115  sudo systemctl status sshd
  116  sudo systemctl start sshd
  117  sudo firewall-cmd --list-all
  118  sudo firewall-cmd --get-services
  119  sudo firewall-cmd --add-service http
  120  sudo lsblk
  121  sudo umount /dev/sdb1
  122  sudo mount /dev/sdb1 /mnt
  123  cd /mnt
  124  ls
  125  cd /
  126  history