LFCS sep20 day2

UBUNTU COMMANDS
    1  sudo apt install openssh-server
    2  ip a
    3  sudo apt install vim
    4  sudo vim /etc/apt/sources.list
    5  sudo apt-get update
    6  sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
    7  curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
    8  sudo apt-key fingerprint 0EBFCD88
    9  sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
   10  lsb_release
   11  lsb_release -cs
   12  sudo apt-get update
   13  sudo apt-get install docker-ce docker-ce-cli containerd.io
   14  sudo docker run hello-world
   15  history

CONTAINER COMMANDS
    1  sudo -i
    2  exit
    3  id
    4  docker search nginx
    5  docker run nginx -d
    6  docker run -d nginx
    7  docker ps
    8  docker kill nginx
    9  docker kill brave_haslett
   10  docker run -d -p 8080:80 nginx
   11  curl http://localhost:8080
   12  sudo uname -r
   13  docker run -it fedora
   14  docker ps
   15  history

CENTOS NFS-SERVER
    7  yum install nfs-utils
    8  mkdir /nfsshare
    9  cp /etc/[a-c]* /nfsshare/
   10  echo /nfsshare    *(rw,no_root_squash) > /etc/exports
   11  cat /etc/exports
   12  systemctl enable --now nfs-server
   13  systemctl status nfs-server
   14  firewall-cmd --get-services
   15  for i in nfs mountd rpc-bind; do firewall-cmd --add-service $i --permanent; done
   16  firewall-cmd --list-all
   17  firewall-cmd --reload
   18  history

CENTOS PODMAN COMMANDS
   1  sudo -i
    2  su -
    3  su -
    4  countdown 12
    5  su -
    6  sudo -i
    7  ssh root@192.168.4.162
    8  sudo -i
    9  su -
   10  exit
   11  virt-manager
   12  id
   13  sudo grep libvirt /etc/group
   14  sudo usermod -aG libvirt student
   15  exit
   16  uname -r
   17  podman run -it ubuntu
   18  podman ps
   19  history


GENERIC HISTORY
    1  cd /home/linda/
    2  rm -f rootfile2
    3  man chattr
    4  chattr -i rootfile2
    5  exit
    6  mount
    7  mount | grep '^/'
    8  swapon -s
    9  yum install -y git
   10  git clone https://github.com/sandervanvugt/lfcs
   11  cd lfcs
   12  ls
   13  ./countdown 12
   14  ps aux | grep fire
   15  ps aux | grep defunct
   16  history
   17  find / -name "hosts"
   18  find / -name "hosts" 2>/dev/null
   19  find / -name "*hosts*" 2>/dev/null
   20  useradd linda
   21  find / -user linda
   22  mkdir linda
   23  find / -user linda -exec cp {} /root/linda\;
   24  find / -user linda -exec cp {} /root/linda \;
   25  who
   26  ls
   27  who; ls
   28  ls
   29  ls -a linda/
   30  su - linda
   31  find / -user linda -exec cp {} /root/linda \;
   32  ls -a linda/
   33  find / -user linda -exec cp -R {} /root/linda \;
   34  ls -a linda/
   35  ls -ld linda/
   36  find / -user linda -exec cp -R {} /root/linda/ \;
   37  pwd
   38  cd ..
   39  ls
   40  cat linda
   41  rm linda
   42  mkdir linda
   43  find / -user linda -exec cp -R {} /root/linda/ \;
   44  ls linda/
   45  history
   46  find / -perm /4000
   47  find / -type f -size +100M
   48  mkdir -p find/contents && find /etc -exec grep -l student {} \; -exec cp {} find/contents/ \; 2>/dev/null
   49  find /etc/ -name '*' -type f | xargs grep "127.0.0.1"
   50  sed -n 50 /etc/passwd
   51  sed -n 5p /etc/passwd
   52  vim myfiles
   53  sed -i 's/one/ONE/g' ~/myfiles
   54  cat myfiles
   55  ip a
   56  sed -i -e '2d' myfiles
   57  cat myfiles
   58  awk -F : '{ print $4 }' /etc/passwd
   59  cut -d : -f 4 /etc/passwd
   60  awk -F : '/linda/ { print $4 }' /etc/passwd
   61  history
   62  man mktemp
   63  cd `mktemp -d` && touch 'a b c' '1' '2' && find . -type f | xargs grep
   64  cd `mktemp -d` && touch 'a b c' '1' '2' && find . -type f | xargs grep .
   65  ls
   66  pwd
   67  cd ..
   68  cd `mktemp -d` && touch 'a b c' '1' '2'  && find . -type f -exec grep {} \;
   69  cd `mktemp -d` && touch 'a b c' '1' '2'  && find . -type f -exec grep {} . \;
   70  history
   71  cd `mktemp -d` && touch 'a b c' '1' '2'  && find . -type f -exec grep '.' {} \;
   72  cd `mktemp -d` && touch 'a b c' '1' '2' && find . -type f | xargs grep '.'
   73  cd
   74  cd lfcs/
   75  echo $PATH
   76  ln countdown /usr/local/sbin/countdown
   77  ln countdown /usr/local/bin/countdown
   78  ls -l countdown
   79  history
   80  cd /lib
   81  ls
   82  cd modules
   83  ls
   84  uname -r
   85  cd `uname -r`
   86  cd ..
   87  cd $(uname -r)
   88  countdown 12
   89  cd
   90  vipw
   91  tail /etc/shadow
   92  vim /etc/login.defs
   93  cd /etc/skel/
   94  ls -a
   95  id student
   96  visudo
   97  cd ..
   98  ls -l /etc/passwd /etc/shadow
   99  grep linda /etc/shadow
  100  useradd --help | less
  101  useradd -s /usr/bin/passwd -G wheel anna
  102  grep anna /etc/passwd
  103  grep anna /etc/shadow
  104  passwd --help | less
  105  passwd -x 90 anna
  106  grep anna /etc/shadow
  107  chage anna
  108  ls -l
  109  cd /home/linda
  110  echo password | passwd --stdout
  111  echo password | passwd --stdin
  112  echo password | passwd --stdin linda
  113  history -d 108
  114  history
  115  touch rootfile1
  116  touch rootfile2
  117  chattr +i rootfile2
  118  su - linda
  119  groupadd sales
  120  groupadd account
  121  useradd anna -G account
  122  usermod anna -aG account
  123  useradd anouk -G account
  124  useradd linda -G sales
  125  usermod -aG sales linda
  126  useradd -G sales lisa
  127  id anna
  128  cd
  129  mkdir /data/sales
  130  mkdir -p /data/sales
  131  mkdir -p /data/account
  132  cd /data
  133  ls -l
  134  chgrp sales sales
  135  chgrp account account
  136  ls -l
  137  chmod 770 *
  138  ls -l
  139  su - linda
  140  su - lisa
  141  chmod g+s *
  142  ls -l
  143  su - linda
  144  su - lisa
  145  chmod +t *
  146  ls -l
  147  su - lisa
  148  chown lisa sales
  149  ls -l
  150  su - lisa
  151  poweroff
  152  lsblk
  153  file --helo
  154  lsblk
  155  gdisk /dev/sda
  156  ssh 192.168.4.162
  157  gdisk /dev/sda
  158  gdisk -l /dev/sda
  159  lsblk
  160  cat /proc/partitions
  161  partprobe
  162  cat /proc/partitions
  163  mkfs.xfs /dev/sda7
  164  mkdir /filesystem
  165  vim /etc/fstab
  166  mount -a
  167  mount
  168  xxd /dev/sda | less
  169  mount
  170  mount | grep '^/'
  171  fdisk /dev/sda
  172  cd /usr/lib/systemd/system
  173  ls
  174  ls tmp*
  175  vim /etc/fstab
  176  cd /run/systemd/generator/
  177  ls
  178  vim var-log.mount
  179  vim /etc/fstab
  180  cp boot.mount /etc/systemd/system/filesystem.mount
  181  vim /etc/systemd/system/filesystem.mount
  182  systemctl daemon-reload
  183  systemctl enable --now filesystem.mount
  184  systemctl status multi-user.target
  185  mount |grep files
  186  cd /usr/lib/systemd/system
  187  vim tmp.mount
  188  mount | grep tmp
  189  ls /tmp
  190  systemctl enable tmp.mount
  191  reboot
  192  fdisk /dev/sdb
  193  mkfs.ext4 /dev/sdb5
  194  mkfs.xfs /dev/sdb6
  195  vim /etc/fstab
  196  mkdir /bigfiles
  197  mount -a
  198  mount
  199  fdisk /dev/sdb
  200  mount /dev/sdb5 /mnt
  201  cd /mnt
  202  touch hello
  203  touch dbs5
  204  touch sdb5
  205  ls
  206  exit
  207  fdisk /dev/sdb
  208  reboot
  209  journalctl -xb
  210  vim /etc/fstab
  211  fdisk -l /dev/sdb
  212  xfs_admin -L cow /dev/sdb5
  213  vim /etc/fstab
  214  reboot
  215  mount | grep '^/'
  216  blkid
  217  cat /etc/fstab
  218  fdisk /dev/sdb
  219  mount /dev/sdb6 /mnt
  220  cd /mnt
  221  ls
  222  tune2fs -L goat /dev/sdb6
  223  vim /etc/fstab
  224  mkdir /cheese
  225  fdisk /dev/sdb
  226  reboot
  227  free -m
  228  less /proc/meminfo
  229  gdisk /dev/sda
  230  partprobe
  231  reboot
  232  gdisk -l /dev/sda
  233  mkswap /dev/sda8
  234  free -m
  235  swapon /dev/sda8
  236  free -m
  237  vim /etc/fstab
  238  history
  239  yum repolist
  240  yum-config-manager
  241  cd /etc/yum.repos.d/
  242  ls
  243  df -h
  244  dd if=/dev/cdrom of=/centos82.iso bs=1M
  245  cd
  246  cd /repo
  247  mkdir /repo
  248  vim /etc/fstab
  249  mount -a
  250  cd /repo/
  251  ls
  252  cs BaseOS/
  253  ls
  254  cd BaseOS/
  255  ls
  256  ls repodata/
  257  vim /etc/yum.repos.d/my.repo
  258  cd /etc/yum.repos.d/
  259  ls
  260  vim CentOS-HA.repo
  261  yum install yum-config-manager
  262  rm my.repo
  263  yum install yum-config-manager
  264  yum install yum-utils
  265  yum-config-manager --add-repo file:///repo/BaseOS
  266  ls
  267  vim repo_BaseOS.repo
  268  yum repolist
  269  which yu
  270  which yum
  271  ls -l /usr/bin/yum
  272  yum search seinfo
  273  yum provides */seinfo
  274  cd
  275  rpm -ql yum-utils
  276  rpm -qc yum-utils
  277  rpm -qf $(which ls)
  278  yumdownloader nmap
  279  rpm -qpl nmap-7.70-5.el8.x86_64.rpm
  280  man ifconfig
  281  ip addr
  282  ip addr add dev ens33 10.0.0.10/24
  283  ping 10.0.0.10
  284  ip addr add --help
  285  ip addr add help
  286  history
  287  ip a
  288  ifconfig
  289  ifconfig -a
  290  ifconfig /all
  291  rpm -qf $(which ifconfig)
  292  yum remove net-tools
  293  ifconfig
  294  ip -s link
  295  systemctl status NetworkManager
  296  systemctl status NetworkManager -l
  297  systemctl status -l NetworkManager
  298  nmtui
  299  ip  a
  300  rpm -qa | grep bash-completion
  301  nmcli connection show
  302  nmcli connection add con-name newcon type ethernet
  303  nmcli connection add con-name newercon type ethernet ipv4.method manual ipv4.addresses 192.168.4.245/24 ipv4.gateway 192.168.4.2 ipv4.dns 8.8.8.8
  304  ip a
  305  nmcli connection show
  306  nmcli connection up newercon
  307  ip a
  308  nmcli connection show
  309  man -k nmcli
  310  man nmcli-examples
  311  ssh student@192.168.4.159
  312  vim /etc/hosts
  313  countdown 12
  314  vim lfcs/countdown
  315  lsblk
  316  gdisk /dev/sda
  317  fdisk /dev/sdb
  318  partprobe
  319  lsblk
  320  pvcreate /dev/sda9
  321  xxd /dev/sda9 | less
  322  pvs
  323  vgcreate vgdata /dev/sda9
  324  vgs
  325  pvs
  326  lvcreate -n lvdata -L 1G vgdata
  327  lvcreate -n lvdata -l 255 vgdata
  328  lvs
  329  mkfs.ext3 /dev/vgdata/lvdata
  330  mkdir /lvdata
  331  cd /etc/systemd/system/
  332  ls
  333  cp filesystem.mount lvdata.mount
  334  vim lvdata.mount
  335  systemctl enable --now lvdata.mount
  336  systemctl status lvdata.mount
  337  mount | grep lvd
  338  ls -l /dev/vgdata/lvdata /dev/mapper/vgdata-lvdata
  339  xxd /dev/sda9 | less
  340  cd /lvdata
  341  dd if=/dev/zero of=bigile
  342  df -h
  343  lvextend -L +1G /dev/vgdata/lvdata
  344  vgs
  345  vgextend vgdata /dev/sdb7
  346  vgs
  347  man lvextend
  348  lvextend -r -L +1G /dev/vgdata/lvdata
  349  lvextend -r -L +1020M /dev/vgdata/lvdata
  350  df -h
  351  resize2fs --help
  352  df -h
  353  echo $(( 989 + 913 ))
  354  echo $(( 2048 - 1902 ))
  355  lsblk
  356  mdadm --create /dev/md0 --level 5 --raid-devices 3 /dev/sd{c,d,e}
  357  man mdadm
  358  cat /proc/mdstat
  359  mdadm --detail /dev/md0
  360  mdadm --detail --scan --verbose >> /etc/mdadm.conf
  361  mkfs.ext4 -L RDATA /dev/md0
  362  vim /etc/fstab
  363  mount -a
  364  mkdir /raid
  365  mount -a
  366  vim /etc/fstab
  367  mount -a
  368  countdown 12
  369  reboot
  370  vim /etc/default/grub
  371  cd /boot/efi/EFI/centos/
  372  ls
  373  grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
  374  reboot
  375  systemctl -t help
  376  systemctl list-units
  377  systemctl cat cups.path
  378  systemctl show sshd.service
  379  systemctl edit sshd.service
  380  export SYSTEMD_EDITOR=/usr/bin/vim
  381  systemctl edit sshd.service
  382  systemctl show sshd.service
  383  systemctl edit sshd.service
  384  systemctl cat sshd.service
  385  systemctl status sshd.service
  386  yum install -y httpd vsftpd
  387  vim /etc/bashrc
  388  systemctl cat httpd.service
  389  systemctl edit httpd.service
  390  systemctl cat httpd.service
  391  ps aux | grep httpd
  392  ps aux | grep vsfp
  393  ps aux | grep vsftp
  394  systemctl start httpd.service
  395  ps aux | grep vsftp
  396  systemctl edit sshd.service
  397  systemctl status sshd.service
  398  systemctl status httpd.service
  399  systemctl edit httpd.service
  400  systemctl status httpd.service
  401  systemctl stop httpd.service
  402  systemctl start httpd.service
  403  systemctl status httpd.service
  404  journalctl
  405  systemctl edit httpd.service
  406  systemctl start httpd.service
  407  systemctl status httpd.service
  408  cd /etc/systemd/system/
  409  ls
  410  systemctl get-default
  411  systemctl set-default graphical.target
  412  systemctl isolate rescue.target
  413  systemctl list-units
  414  systemctl isolate reboot.target
  415  history
  416  vim /etc/hosts
  417  showmount -e nfsserver
  418  cd /etc/systemd/system/
  419  ls
  420  cp lvdata.mount nfsshare.mount
  421  vim nfsshare.mount
  422  vim /etc/fstab
  423  systemctl daemon-reload
  424  cd /run/systemd/generator/
  425  ls
  426  mkdir /nfsshare
  427  cat nfsshare.mount
  428  mount -a
  429  cd /nfsshare/
  430  ls
  431  vim /etc/httpd/conf/httpd.conf
  432  vim /var/www/html/index.html
  433  systemctl restart httpd
  434  curl http://localhost
  435  grep vmx /proc/cpuinfo
  436  lsmod | grep kvm
  437  systemctl status libvirtd
  438  yum install virt-manager -y
  439  cd /
  440  ls
  441  virt-manager &
  442  exit
  443  virt-manager
  444  exit
  445  systemctl enable httpd.service
  446  cd /usr/lib/systemd/system
  447  vim multi-user.target
  448  cd /etc/systemd/system/multi-user.target.wants/
  449  \ls -l
  450  systemctl cat swap.target
  451  cd ..
  452  pwd
  453  ls
  454  pwd
  455  cd /usr/lib/systemd/system
  456  ls *swap
  457  cd
  458  systemctl list-dependencies graphical.target
  459  systemd-analyze blame
  460  systemd-analyze -h
  461  systemd-analyze security httpd.service
  462  systemctl list-timers
  463  systemctl list-timers --all
  464  systemctl cat fstrim.timer
  465  systemctl cat fstrim.service
  466  systemctl enable --now fstrim.timer
  467  man 7 systemd.time
  468  man 7 systemd.timer
  469  kill -9 $(pidof sshd)
  470  systemctl status sshd
  471  systemctl cat sshd.service
  472  systemctl status sshd
  473  countdown 20
  474  dd if=/dev/zero of=/dev/null &
  475  top
  476  dd if=/dev/zero of=/dev/null &
  477  top
  478  cd /sys/bus/cpu/devices/
  479  ls
  480  ls cpu0/
  481  lscpu
  482  echo 0 > cpu1/online
  483  lscpu
  484  top
  485  killall dd
  486  pwd
  487  echo 1 > cpu1/online
  488  exit
  489  yum install epel-release
  490  yum install lxc lxc-templates lxc-extra
  491  lxc-checkconfig
  492  cd /usr/share/lxc/templates/
  493  ls
  494  lxc-create -t download -n lxc-container1
  495  tree /var/lib/lxc/
  496  cd /var/lib/lxc/
  497  ls
  498  cd lxc-container1/
  499  ls
  500  vim config
  501  vim tmp_root_pass
  502  lxc-ls -f
  503  lxc-start -n lxc-container1 -d
  504  lxc-start -n lxc-container1
  505  lxc-create -t centos -n lxc-centos1
  506  cd /usr/share/lxc/templates/
  507  ls
  508  lxc-create -t download -n lxc-centos1
  509  lxc-create -t download -n lxc-centos2
  510  lxc-ls -f
  511  vim /var/lib/lxc/lxc-centos2/tmp_root_pass
  512  lxc-start -n lxc-centos2 -d
  513  cd /var/lib/lxc/lxc-centos2/
  514  ls
  515  vim config
  516  ssh student@ubuntu
  517  cd
  518  su - student
  519  history