RHCSA Day 2 Sander May 2022

[root@localhost balanced]# history
    1  vim countdown.sh
    2  chmod +x countdown.sh
    3  ./countdown.sh 16
    4  exit
    5  tar -czvf /root/archive.tgz /etc
    6  ls -l /root/archive.tgz
    7  tar tvf /root/archive.tgz
    8  grep -v '^$' /etc/dnsmasq.conf
    9  grep -v '^$' /etc/dnsmasq.conf | sort > /var/tmp/dnslines.txt
   10  useradd linda
   11  find / -user linda
   12  find / -user linda 2>/dev/null
   13  mkdir /root/userfiles; find / -user linda -exec cp {} /root/userfiles \;
   14  history
   15  ./countdown.sh 13
   16  ./countdown.sh 12
   17  cat countdown.sh
   18  #tar -cvzf /root/archive2.tgz /etc
   19  history
   20  vim countdown.sh
   21  git clone https://github.com/sandervanvugt/rhcsa
   22  cat /etc/passwd
   23  head -1 /etc/passwd
   24  tail /etc/group
   25  id student
   26  id linda
   27  su - linda
   28  passwd lindaA
   29  su - linda
   30  usermod -aG wheel linda
   31  id linda
   32  su - linda
   33  history
   34  vim /etc/login.defs
   35  cd /etc/skel/
   36  ls
   37  ls -a
   38  ls -a /home/linda
   39  pwd
   40  passwd --help
   41  chage linda
   42  grep linda /etc/shadow
   43  man 5 shadow
   44  cd
   45  grep linda /etc/passwd
   46  grep linda /etc/group
   47  id linda
   48  ls -l
   49  chmod -x countdown.sh
   50  ls -l
   51  ./countdown.sh
   52  chmod +x countdown.sh
   53  ./countdown.sh
   54  countdown.sh
   55  mkdir /data/files
   56  mkdir -p /data/files
   57  cd /data
   58  groupadd sales
   59  usermod -aG sales linda
   60  mkdir sales
   61  ls -l
   62  chgrp sales sales
   63  ls -l
   64  chmod 770 sales
   65  ls -l
   66  chmod g-x sales
   67  ls -l
   68  chmod g+x sales
   69  ls -l
   70  cd sales
   71  touch myfile
   72  ls -l
   73  ln -s myfile linkfile
   74  ls -l
   75  history
   76  cd
   77  ./countdown.sh 12
   78  pwd
   79  cd /home/linda
   80  touch rootfile
   81  ls -l
   82  su - linda
   83  pwd
   84  vim playme.sh
   85  chmod +x playme.sh
   86  su - linda
   87  chmod u+s playme.sh
   88  ls -k
   89  ls -l
   90  find / -perm /4000 2>/dev/null
   91  find / -perm /4000 -exec ls -l {} \; 2>/dev/null
   92  ls -l /etc/shadow
   93  tail -1 /etc/shadow
   94  useradd -G sales lisa
   95  grep sales /etc/group
   96  passwd lisa
   97  su - lisa
   98  chmod g+s /data/sales
   99  ls -ld /data/sales
  100  su - lisa
  101  cd /data
  102  chmod +t sales/
  103  ls -l
  104  su - lisa
  105  ls -l
  106  chgrp wheel files
  107  ls -l
  108  xxd -l 512 /dev/sda
  109  lsblk
  110  xxd -l 512 /dev/nvme0n1
  111  fdisk -l /dev/nvme0n1
  112  poweroff
  113  ./countdown.sh 12
  114  lsblk
  115  ls -l /dev/nv*
  116  fdisk /dev/nvme0n1
  117  lsblk
  118  mkfs.xfs /dev/nvme0n1p3
  119  mount /dev/nvme0n1p3 /mnt
  120  findmnt
  121  lsblk
  122  cd /mnt
  123  ls
  124  cp /etc/hosts .
  125  ls
  126  umount /mnt
  127  lsof .
  128  cd
  129  umount /mnt
  130  vim /etc/fstab
  131  mount -a
  132  mkdir /files
  133  mount -a
  134  reboot
  135  who
  136  history
  137  exit
  138  lsblk
  139  history
  140  cd /files/
  141  ls
  142  lsblk
  143  history
  144  exit
  145  history
  146  fdisk /dev/nvme0n1
  147  reboot
  148  lsblk
  149  mkfs.xfs /dev/nvme0n1p5
  150  mkfs.ext4 /dev/nvme0n1p6
  151  mkdir /xfs
  152  mkdir /ext4
  153  vim /etc/fstab
  154  mount -a
  155  lsblk
  156  touch /ext4/myext4file
  157  history
  158  vim /etc/fstab
  159  fdisk /dev/nvme0n1
  160  reboot
  161  journalctl -xb
  162  cat /etc/fstab
  163  lsblk
  164  cat /etc/fstab
  165  blkid
  166  blkid | grep n1p5 | awk '{ print $2 }'
  167  blkid | grep n1p5 | awk '{ print $2 }' >> /etc/fstab
  168  vim /etc/fstab
  169  reboot
  170  lsblk
  171  tune2fs -L cow /dev/nvme0n1p5
  172  blkid
  173  xfs_admin -L goat /dev/nvme0n1p1
  174  umount /dev/nvme0n1p1
  175  xfs_admin -L goat /dev/nvme0n1p1
  176  mount -a
  177  lsblk
  178  blkid
  179  vim /etc/fstab
  180  \
  181  ls -l /dev/nvm*
  182  vim /etc/fstab
  183  reboot
  184  vim /etc/fstab
  185  findmnt --verify
  186  vim /etc/fstab
  187  findmnt --verify
  188  groupadd students
  189  groupadd profs
  190  vim /etc/login.defs
  191  useradd -G profs anna
  192  useradd -G profs anouk
  193  tail /etc/passwd
  194  usermod -aG students linda
  195  usermod -aG students lisa
  196  id lisa
  197  cd /data
  198  mkdir profs students
  199  ls -l
  200  chmod 3770 students/
  201  chmod 3770 profs
  202  chgrp students students
  203  chgrp profs profs
  204  ls -l
  205  history
  206  ls
  207  ls -l
  208  cd students
  209  touch {1..10}.txt
  210  ls
  211  ls -l
  212  getfacl .
  213  setfacl -R -m g:profs:rx /data/students
  214  ls -l
  215  man setfacl
  216  setfacl -R -x g:profs /data/students
  217  ls -l
  218  setfacl -R -m g:profs:rX /data/students
  219  ls -lk
  220  getfacl .
  221  su - linda
  222  ls -l
  223  getfacl 9.txt
  224  getfacl linda1
  225  history
  226  setfacl -m d:g:profs:rx /data/profs
  227  getfacl /data/profs
  228  su - linda
  229  getfacl linda2
  230  setfacl -m d:g:profs:rx /data/students/
  231  su - linda
  232  getfacl linda3
  233  cd
  234  ./countdown.sh 13
  235  find / -name "mnttab"
  236  find / -name "vfstab"
  237  cat /etc/os-release
  238  yum repolist
  239  yum install -y git
  240  cd /etc/yum.repos.d/
  241  ls
  242  which yum
  243  which dnf
  244  ls -l /bin/yum /bin/dnf
  245  cd
  246  df -h
  247  dd if=/dev/sr0 of=/rhel8.iso bs=1M
  248  bg
  249  mkdir /repo
  250  vim /etc/fstab
  251  mount -a
  252  cd /repo
  253  ls
  254  cd BaseOS/
  255  ls
  256  ls Packages/
  257  yum install git
  258  cd
  259  df -h
  260  lsblk
  261  cd /etc/yum.repos.d/
  262  vim base.repo
  263  vim appstream.repo
  264  yum repolist
  265  yum install git
  266  history
  267  cd
  268  yum search nmap
  269  yum search seinfo
  270  seinfo
  271  yum provides */seinfo
  272  yum module list
  273  yum module provides httpd
  274  yum module info httpd
  275  yum module info postgresql
  276  yum module info --profile postgresql
  277  yum module list postgresql
  278  yum module install postgresql:9.6
  279  yum module install postgresql:9.6/devel
  280  yum install httpd
  281  yum module enable postgresql:9.6
  282  yum module info postgresql
  283  yum module info postgresql | less
  284  ./countdown.sh 12
  285  fdisk /dev/nvme0n1
  286  lsblk
  287  pvcreate /dev/nvme0n1p7
  288  pvs
  289  vgcreate --help | less
  290  vgcreate -s 4m vgdata /dev/nvme0n1p7
  291  pvs
  292  vgs
  293  man lvcreate
  294  lvcreate -n lvdata -L 1G vgdata
  295  #lvcreate -n lvdata -l 100%FREE vgdata
  296  #lvcreate -n lvdata -l 255 vgdata
  297  lvcreate -n lvdata -l 100%FREE vgdata
  298  lvs
  299  mkfs.xfs /dev/vgdata/lvdata
  300  vim /etc/fstab
  301  mkdir /lvdata
  302  mount -a
  303  mount
  304  ls -l /dev/vgdata/lvdata /dev/mapper/vgdata-lvdata
  305  history
  306  fdisk /dev/nvme0n1
  307  vim /etc/fstab
  308  reboot
  309  ls /xfs
  310  ls /ext4
  311  vim /etc/fstab
  312  cd /xfs
  313  touch myxfsfsfsfsfsfsfs
  314  cd
  315  fdisk /dev/nvme0n1
  316  reboot
  317  fdisk /dev/nvme0n1
  318  blkid
  319  vim /etc/fstab
  320  reboot
  321  ls /xfs
  322  blkid
  323  lsblk
  324  df -h /dev/vgdata/lvdata
  325  dd if=/dev/zero of=/lvdata/bigfile
  326  df -h /dev/vgdata/lvdata
  327  lvs
  328  vgs
  329  pvs
  330  fdisk /dev/nvme0n1
  331  lsblk
  332  vgextend vgdata /dev/nvme0n1p8
  333  vgs
  334  lvextend -r /dev/vgdata/lvdata -l +50%FREE
  335  df -h
  336  lvextend /dev/vgdata/lvdata -l +50%FREE
  337  lvs
  338  df -h
  339  xfs_growfs /dev/vgdata/lvdata
  340  df -h
  341  ./countdown.sh 12
  342  ip a
  343  ifconfig
  344  ip addr add dev ens160 10.0.0.10/24
  345  ip a
  346  ping 10.0.0.10
  347  ifconfig
  348  man ifconfig
  349  ifconfig
  350  ip -s link
  351  rpm -qf $(which ifconfig)
  352  rpm -ql net-tools
  353  rpm -ql net-tools | grep bin
  354  yum remove net-tools
  355  ip route
  356  cat /etc/resolv.conf
  357  nmtui
  358  ip a
  359  nmtui
  360  ip a
  361  systemctl status NetworkManager
  362  ping 8.8.8.8
  363  ping nu.nl
  364  systemctl status tuned
  365  tuned-adm list
  366  tuned-adm profile balanced
  367  tuned-adm list
  368  cd /usr/lib/tuned/
  369  ls
  370  cd balanced/
  371  ls
  372  vim tuned.conf
  373  pwd
  374  mkdir /etc/tuned/sander
  375  cp tuned.conf /etc/tuned/sander/
  376  tuned-adm list
  377  history