RHCSA day2 jan22

root@server ~]# history
    1  tar -czvf /root/archive.tgz /etc
    2  ls -l
    3  tar tvf archive.tgz
    4  cat /etc/dnsmasq.conf |sed '^$' |sort > /var/tmp/dnslines.txt
    5  cat /etc/dnsmasq.conf |sed "/^$/d" |sort > /var/tmp/dnslines.txt
    6  cat /var/tmp/dnslines.txt
    7  cat /etc/dnsmasq.conf |sort -d > /var/tmp/dnslines.txt
    8  man sort
    9  cat /etc/dnsmasq.conf | grep -v '^$' | sort > /var/tmp/dnslines.txt
   10  history
   11  #mkdir /root/userfiles find / -user $USER -exec cp {} /root/userfiles/ \;
   12  useradd linda
   13  mkdir /root/userfiles ; find / -user linda -exec cp {} /root/userfiles/ \;
   14  ls /root/userfiles/ -a
   15  history
   16  git clone https://github.com/sandervanvugt/rhcsa
   17  dnf install -y git vim
   18  vim countdown
   19  chmod +x countdown
   20  ./countdown 12
   21  less /etc/passwd
   22  id linda
   23  usermod -aG wheel linda
   24  id linda
   25  id student
   26  vim /etc/default/useradd
   27  vim /etc/login.defs
   28  cd /etc/skel/
   29  ls
   30  ls -a
   31  touch hellofile
   32  useradd bob
   33  ls -al /home/bob
   34  passwd --help | less
   35  passwd --help
   36  passwd -S linda
   37  passwd linda
   38  echo password | passwd --stdin linda
   39  passwd -S linda
   40  passwd -l linda
   41  passwd -S linda
   42  cat /etc/shadow
   43  chage linda
   44  less /etc/group
   45  grep linda /etc/passwd
   46  grep linda /etc/group
   47  id linda
   48  history
   49  #history -d 38
   50  cd
   51  chmod +x countdown
   52  ls -l countdown
   53  chmod -x countdown
   54  ls -l countdown \
   55  ls -l countdown
   56  ./countdown
   57  history
   58  chmod +x countdown
   59  ls -l
   60  groupadd sales
   61  groupadd account
   62  useradd lisa -G account
   63  id lisa
   64  id linda
   65  usermod -G account linda
   66  id linda
   67  usermod -aG wheel linda
   68  id linda
   69  useradd -G sales anouk
   70  useradd -G sales anna
   71  mkdir /data/account
   72  mkdir -p /data/account
   73  mkdir -p /data/sales
   74  cd /data
   75  ls -l
   76  chgrp sales sales
   77  chgrp account account
   78  ls -l
   79  chmod 770 account
   80  ls -l
   81  chmod g+w,o-rx sales
   82  ls -l
   83  cd /home/linda/
   84  whoami
   85  touch rootfile
   86  pwd
   87  su - linda
   88  history
   89  pwd
   90  vim playme.sh
   91  chmod +x playme.sh
   92  su - linda
   93  chmod u+s playme.sh
   94  ls -l
   95  find / -perm 4000 2>/dev/null
   96  find / -perm /4000 2>/dev/null
   97  ls -l $(which passwd)
   98  ls -l /etc/shadow
   99  grep linda /etc/shadow
  100  history
  101  cd /data
  102  su - linda
  103  su - lisa
  104  chmod g+s *
  105  ls -l
  106  su - linda
  107  su - lisa
  108  cd
  109  ./countdown 12
  110  su - lisa
  111  chmod +t /data/*
  112  cd /data
  113  ls -l
  114  su - lisa
  115  history
  116  lsblk
  117  poweroff
  118  lsblk
  119  su - linda
  120  xxd -l 512 /dev/nvme0n1
  121  fdisk /dev/nvme0n1
  122  lsblk
  123  mount /dev/nvme0n1p3 /mnt
  124  mkfs.xfs /dev/nvme0n1p3
  125  mount /dev/nvme0n1p3 /mnt
  126  mount
  127  cd /mnt
  128  touch hellomount
  129  ls
  130  history
  131  fdisk /dev/nvme0n1
  132  fdisk /dev/nvme0n1p1
  133  fdisk /dev/nvme0n1
  134  lsblk
  135  cat /proc/partitions
  136  partprobe
  137  reboot
  138  lsblk
  139  mount
  140  df -h
  141  mkdir /mypart
  142  vim /etc/fstab
  143  mount -a
  144  df -h
  145  mkfs.ext4 /dev/nvme0n1p5
  146  mkfs.xfs /dev/nvme0n1p6
  147  mkdir /xfs
  148  mkdir /ext4
  149  vim /etc/fstab
  150  mount -a
  151  df -h
  152  vim /etc/fstab
  153  fdisk /dev/nvme0n1
  154  reboot
  155  lsblk
  156  vim /etc/fstab
  157  blkid
  158  grep UUID /etc/fstab
  159  cat /etc/fstab
  160  xfs_admin --help |less
  161  xfs_admin -L goat /dev/nvme0n1p5
  162  blkid
  163  vim /etc/fstab
  164  vim /etc/default/grub
  165  grub2-mkconfig -o /boot/grub2/grub.cfg
  166  reboot
  167  lsblk
  168  df -h
  169  blkid
  170  history
  171  sysctl -t help
  172  systemctl -t help
  173  man pkexec
  174  man polkit
  175  find / -name "polkit"
  176  cd /etc/polkit-1/
  177  ls
  178  cd rules.d/
  179  ls
  180  vim 50-default.rules
  181  cd /usr/lib/polkit-1/
  182  ls
  183  cd
  184  pkexec visudo
  185  groupadd students
  186  groupadd profs
  187  vim /etc/login.defs
  188  for i in linda lisa anna anouk; do userdel -rf $i; done
  189  cat /etc/passwd
  190  for i in linda lisa anna anouk; do userdel -rf $i; done
  191  #for i in linda lisa anna anouk; do user $i; done
  192  ls /home
  193  cd /data/account/
  194  ls -l
  195  useradd -G students linda
  196  useradd -G students lisa
  197  useradd -G profs anna
  198  useradd -G profs anouk
  199  id anna
  200  id lisa
  201  mkdir /data/profs /data/students
  202  cd /data
  203  ls -l
  204  chown anna:profs profs
  205  chown anna:students studnets
  206  chown anna:students students/
  207  chmod 3770 {profs,students}
  208  ls -l
  209  history | tail -12
  210  history
  211  vim /etc/fstab
  212  ls
  213  ls -l
  214  su - lisa
  215  su - anouk
  216  setfacl -R -m g:profs:rx /data/students/
  217  getfacl /data/students/
  218  cd students/
  219  ls -l
  220  ls -ld .
  221  man setfacl
  222  #setfacl -x g:staff file
  223  cd ..
  224  setfacl -R -x g:profs /data/students
  225  ls -l students/
  226  setfacl -R -m g:profs:rX /data/students/
  227  setfacl students/
  228  getfacl students/
  229  getfacl students/lisa1
  230  getfacl students/
  231  cd students/
  232  ls -l
  233  getfacl lisa2
  234  su - lisa
  235  getfacl lisa3
  236  setfacl -m d:g:profs:rx /data/students
  237  su - linda
  238  history
  239  yum install nmap -y
  240  df -h
  241  lsblk
  242  poweroff
  243  ./countdown 12
  244  ./countdown 13
  245  lsblk
  246  mkdir /isos
  247  fdisk /dev/nvme0n6
  248  lsblk
  249  mkfs.xfs -L isos /dev/nvme0n6p1
  250  vim /etc/fstab
  251  tail -1 /etc/fstab
  252  mount -a
  253  df -h
  254  dd if=/dev/sr0 of=/isos/rhel85.iso bs=1M
  255  df -h
  256  history
  257  mkdir /repo
  258  vim /etc/fstab
  259  mount -a
  260  vim /etc/fstab
  261  mount -a
  262  ls /repo/
  263  history
  264  tail -2 /etc/fstab
  265  df -h
  266  yum repolist
  267  cd /etc/yum.repos.d/
  268  ls
  269  cat redhat.repo
  270  vim base.repo
  271  cd /repo
  272  ls
  273  cat media.repo
  274  vim appstream.repo
  275  cd
  276  cd /etc/yum.repos.d/
  277  ls
  278  vim appstream.repo
  279  yum repolist
  280  cd /repo
  281  ls
  282  ls -l $(which dnf)
  283  ls -l $(which yum)
  284  yum provides */semanage
  285  vim appstream.repo
  286  cd /etc/yum.repos.d/
  287  vim appstream.repo
  288  yum provides */semanage
  289  seinfo
  290  history
  291  yum module list
  292  yum module list | less
  293  yum module provides httpd
  294  yum module info postgresql
  295  yum module info postgresql | less
  296  yum module info --profile postgresql
  297  yum module list postgresql
  298  yum install @postgresql:9.6/devel
  299  yum install httpd
  300  yum module enable postgresql:9.6
  301  nmtui
  302  ip a
  303  nmtui
  304  ip a
  305  ifconfig
  306  ip a
  307  ifconfig -a
  308  ifconfig /all
  309  man ifconfig
  310  ip -s link
  311  ifconfig
  312  man ifconfig
  313  rpm -qf $(which ifconfig)
  314  rpm -ql net-tools
  315  rpm -ql net-tools | grep bin
  316  yum remove net-tools
  317  ip addr add dev ens160 11.0.0.11/24
  318  ip a
  319  ip route show
  320  ip route add 20.0.0.0/24 via 192.168.29.9
  321  ip route show
  322  nmtui
  323  cd
  324  ./countdown 12
  325  sysctl -a
  326  sysctl -a | wc
  327  systemctl status tuned
  328  tuned-adm list
  329  tuned-adm profile desktop
  330  tuned-adm --help
  331  cd /usr/lib/tuned/
  332  ls
  333  cd throughput-performance/
  334  ls
  335  vim tuned.conf
  336  pwd
  337  ls -ld /etc/tuned/
  338  mkdit /etc/tuned/sander
  339  mkdir /etc/tuned/sander
  340  cp tuned.conf /etc/tuned/sander/
  341  systemctl restart tuned
  342  tuned-adm list
  343  yum provides */tuned
  344  yum groups list
  345  fdisk /dev/nvme0n1
  346  lsblk
  347  pvcreate --help
  348  pvcreate /dev/nvme0n1p6
  349  pvs
  350  pvdisplay
  351  vgcreate --help | less
  352  vgcreate -s 4M vgdata /dev/nvmen0p6
  353  vgcreate -s 4M vgdata /dev/nvme0n1p6
  354  vgs
  355  pvs
  356  lvcreate --help | less
  357  lvcreate -L 1G -n lvdata vgdata
  358  pvs
  359  lvcreate -l 100%FREE -n lvdata vgdata
  360  lvs
  361  mkfs.ext4 /dev/vgdata/lvdata
  362  mkdir /lvdata
  363  vim /etc/fstab
  364  mount -a
  365  mount
  366  ls -l /dev/vgdata/lvdata /dev/mapper/vgdata-lvdata
  367  \ls -l /dev/vgdata/lvdata /dev/mapper/vgdata-lvdata
  368  history
  369  xxd /dev/nvme0n1p6 | less
  370  history
  371  lvs
  372  vgs
  373  fdisk /dev/nvme0n1
  374  lsblk
  375  vgextend vgdata /dev/nvme0n1p7
  376  vgs
  377  lvextend /dev/vgdata/lvdata -L +1G
  378  lvs
  379  df -h
  380  mount | grep data
  381  resize2fs /dev/mapper/vgdata-lvdata
  382  df -h
  383  history
  384  vim /etc/fstab
  385  reboot
  386  vim /etc/fstab
  387  exit
  388  fdisk /dev/nvme0n1
  389  mount /dev/nvme0n1p8 /mnt
  390  df -h
  391  cd /mnt
  392  ls
  393  cd
  394  free -m
  395  echo $(( 1151 + 1824 ))
  396  echo $(( 1151 + 1824 + 733 ))
  397  less /proc/meminfo
  398  fdisk /dev/nvme0n1
  399  free -m
  400  mkswap /dev/nvme0n1p9
  401  vim /etc/fstab
  402  swapon -a
  403  free -m
  404  fdisk /dev/nvme0n1
  405  vim /etc/fstab
  406  reboot
  407  history