RHCSA day2 may23

[root@server ~]# history
    1  tar czvf /root/archive.tgz /etc
    2  history
    3  cat /etc/dnsmasq.conf
    4  cat /etc/dnsmasq.conf  | grep -v '^$'
    5  cat /etc/dnsmasq.conf  | grep -v '^$' | sort
    6  cat /etc/dnsmasq.conf  | grep -v '^$' | sort > /var/tmp/dnslines.txt
    7  useradd bob
    8  find / -user bob
    9  mkdir /root/userfiles ; find / -user bob -exec cp -ra {} /root/userfiles \;
   10  ls -l /root/userfiles/
   11  history
   12  visudo
   13  /home/student/countdown 12
   14  tail -1 /etc/passwd
   15  visudo
   16  su - bob
   17  echo password | passwd --stdin bob
   18  su - bob
   19  visudo
   20  su - bob
   21  vim /etc/login.defs
   22  cd /etc/skel/
   23  ls
   24  ls -a
   25  touch hello
   26  less /etc/passwd
   27  id bob
   28  groupadd sales
   29  usermod -aG sales bob
   30  id bob
   31  su - bob
   32  lid wheel
   33  lid --help
   34  lid -g wheel
   35  chage bob
   36  cd
   37  ln /home/student/countdown /usr/local/bin/countdown
   38  ln /home/student/countdown /usr/local/sbin/countdown
   39  countdown 7
   40  vim /etc/login.defs
   41  touch /etc/skel/newfile
   42  groupadd profs
   43  groupadd students
   44  useradd -G profs anna
   45  useradd -G profs anouk
   46  useradd -G students linda
   47  useradd -G students lisa
   48  for i in anna anouk lisa linda; do echo password | passwd --stdin $i; done
   49  history
   50  countdown 12
   51  cd /etc/ls -l
   52  cd /etc
   53  ls -l
   54  cd
   55  mkdir -p /data/profs /data/students
   56  cd /data
   57  ls -l
   58  id
   59  umask
   60  chown :profs /data/profs
   61  ls -l
   62  chgrp students /data/students
   63  ls -l
   64  chmod 770 students
   65  ls -l
   66  chmod g+w,o-rx /data/profs
   67  ls -l
   68  su - anna
   69  chmod g+s /data/profs
   70  su - anna
   71  su - anouk
   72  chmod +t /data/profs
   73  su - anouk
   74  history
   75  cd
   76  pwd
   77  touch removeme
   78  chattr +i removeme
   79  rm -f removeme
   80  lsattr removeme
   81  chattr -i removeme
   82  rm -f removeme
   83  countdown 7
   84  history
   85  poweroff
   86  lsblk
   87  countdown 12
   88  vim /etc/profile
   89  vim /etc/profile.d/
   90  fdisk /dev/sda
   91  lsblk
   92  mkfs.xfs /dev/sda3
   93  mount /dev/sda3 /mnt
   94  lsblk
   95  mount
   96  mkdir /files
   97  vim /etc/fstab
   98  reboot
   99  lsblk
  100  fdisk /dev/sda
  101  mkfs.ext4 /dev/sda6
  102  mkfs.xfs /dev/sda5
  103  mkdir /sda5 /sda6
  104  vim /etc/fstab
  105  mount -a
  106  vim /etc/fstab
  107  fdisk /dev/sda
  108  reboot
  109  touch abc
  110  mount -o remount,rw /
  111  lsblk
  112  fdisk -l /dev/sda
  113  blkid
  114  cat /etc/fstab
  115  cat /etc/fstab | grep sda5
  116  blkid | grep sda5
  117  blkid | grep sda5 | awk '{ print $2 }'
  118  blkid | awk '{ print $2 }'
  119  blkid | grep sda5 | awk '{ print $2 }'
  120  blkid | grep sda5 | awk '{ print $2 }' >> /etc/fstab
  121  blkid | awk '/sda5/ { print $2 }'
  122  vim /etc/fstab
  123  history
  124  vim /etc/fstab
  125  vim /etc/default/grub
  126  grub2-mkconfig -o /boot/grub2/grub.cfg
  127  reboot
  128  vim /etc/fstab
  129  lsblk
  130  vim /etc/fstab
  131  xfs_admin --help
  132  xfs_admin -L cow /dev/sdb3
  133  vim /etc/fstab
  134  reboot
  135  fdisk -l /dev/sdb
  136  fdisk -l /dev/sda
  137  mkfs.ext4 --help
  138  cd /boot
  139  umount /boot
  140  lsof /boot
  141  kill -9 6571
  142  mount
  143  lsblk
  144  findmnt
  145  man 5 fstab
  146  cd
  147  free -m
  148  fdisk /dev/sda
  149  cat /proc/partitions
  150  lsblk
  151  mkswap /dev/sda6
  152  vim /etc/fstab
  153  free -m
  154  swapon -a
  155  free -m
  156  countdown 15
  157  lsblk
  158  mkdir -p /mounts/files
  159  gdisk /dev/sdb
  160  fdisk /dev/sdb
  161  mkfs.ext4 /dev/sdb1
  162  mkfs.xfs -L myxfs /dev/sdb5
  163  blkid
  164  vim /etc/fstab
  165  mkswap /dev/sdb6
  166  vim /etc/fstab
  167  mount 0a
  168  mount -a
  169  vim /etc/fstab
  170  mkdir /mounts/xfs
  171  mount -a
  172  swapon -a
  173  reboot
  174  df -h
  175  cd /
  176  dd if=/dev/sr0 of=/rhel9.iso bs=1M
  177  mkdir /repo
  178  cp /etc/fstab /etc/fstab.bak
  179  echo "/rhel9.iso  /repo  iso9660  defaults  0 0" >> /etc/fstab
  180  mount -a
  181  lsblk
  182  dd if=/dev/zero of=/dev/sdb bs=1M count=100
  183  lsblk
  184  vim /etc/fstab
  185  dnf repolist
  186  cd /etc/yum.repos.d/
  187  ls
  188  rm -f *
  189  dnf repolist
  190  history
  191  dnf config-manager --add-repo="file:///repo/AppStream"
  192  cat /etc/yum.repos.d/repo_AppStream.repo
  193  ls /repo
  194  dnf config-manager --add-repo="file:///repo/BaseOS"
  195  dnf repolist
  196  dnf search nmap
  197  dnf install nmap
  198  vim repo_BaseOS.repo
  199  vim repo_AppStream.repo
  200  dnf install nmap
  201  vim repo_AppStream.repo
  202  cd
  203  seinfo
  204  dnf provides */Containerfile
  205  dnf groups list
  206  dnf groups install "Virtualization Host"
  207  dnf groups list
  208  dnf groups list hidden
  209  cat /etc/redhat-release
  210  dnf module list
  211  countdown 15
  212  history
  213  dnf download htpd
  214  dnf download httpd
  215  ls
  216  rpm -qp httpd-2.4.53-7.el9.x86_64.rpm --scripts
  217  rpm -qf /etc/nsswitch.conf
  218  rpm -qf /etc/passwd
  219  rpm -ql setup
  220  rpm -qd setup
  221  history
  222  cat /proc/partitions
  223  reboot
  224  cat /proc/partitions
  225  gdisk /dev/sdb
  226  pvcreate /dev/sdb1
  227  xxd /dev/sdb1 | less
  228  vgcreate vgdata /dev/sdb1
  229  vgs
  230  vgdisplay vgdata | less
  231  echo $(( 255 * 4 ))
  232  lvcreate -n lvdata -L 1G vgdata
  233  lvcreate -n lvdata -l 100%FREE vgdata
  234  mkfs.ext4 /dev/vgdata/lvdata
  235  vim /etc/fstab
  236  mkdir /lvdata
  237  mount -a
  238  mount
  239  tail -1 /etc/fstab
  240  ls -l /dev/mapper/vgdata-lvdata /dev/vgdata/lvdata
  241  history
  242  xxd /dev/sdb1 | less
  243  vgs
  244  vgextend vgdata /dev/sdb2
  245  vgs
  246  df -h
  247  lvextend -l +50%FREE /dev/vgdata/lvdata
  248  lvs
  249  df -h
  250  resize2fs /dev/vgdata/lvdata
  251  df -h
  252  countdown 15
  253  ip a
  254  systemctl status NetworkManager
  255  nmtui
  256  ip a
  257  sysctl -a
  258  sysctl -a | wc -l
  259  dnf install -y tuned
  260  systemctl enable --now tuned
  261  tuned-adm list
  262  echo vm.swappiness = 33 > /etc/sysctl.d/swappiness.conf
  263  systctl -p /etc/sysctl.d/swappiness.conf
  264  sysctl -p /etc/sysctl.d/swappiness.conf
  265  sysctl -a | grep swappi
  266  mkdir /etc/tuned/myprofile
  267  cat >> /etc/tuned/myprofile/tuned.conf <<EOF
  268  [sysctl]
  269  vm.swappiness = 66
  270  EOF
  271  tuned-adm list
  272  tuned-adm profile myprofile
  273  tuned-adm profile
  274  sysctl -a | grep swapp
  275  vim /etc/tuned/tuned-main.conf
  276  history
  277  cat /lib/tuned/network-throughput/tuned.conf
  278  ls /etc/tuned /usr/lib/tuned/
  279  cd /
  280  ls -l
  281  history -w
  282  cat /proc/partitions
  283  gdisk /dev/sdb
  284  pvcreate /dev/sdb1
  285  xxd /dev/sdb1 | less
  286  vgcreate vgdata /dev/sdb1
  287  vgs
  288  vgdisplay vgdata | less
  289  echo $(( 255 * 4 ))
  290  lvcreate -n lvdata -L 1G vgdata
  291  lvcreate -n lvdata -l 100%FREE vgdata
  292  mkfs.ext4 /dev/vgdata/lvdata
  293  vim /etc/fstab
  294  mkdir /lvdata
  295  mount -a
  296  mount
  297  tail -1 /etc/fstab
  298  ls -l /dev/mapper/vgdata-lvdata /dev/vgdata/lvdata
  299  history
  300  xxd /dev/sdb1 | less
  301  vgs
  302  vgextend vgdata /dev/sdb2
  303  vgs
  304  df -h
  305  lvextend -l +50%FREE /dev/vgdata/lvdata
  306  lvs
  307  df -h
  308  resize2fs /dev/vgdata/lvdata
  309  df -h
  310  countdown 15
  311  ip a
  312  systemctl status NetworkManager
  313  nmtui
  314  ip a
  315  sysctl -a
  316  sysctl -a | wc -l
  317  dnf install -y tuned
  318  systemctl enable --now tuned
  319  tuned-adm list
  320  echo vm.swappiness = 33 > /etc/sysctl.d/swappiness.conf
  321  systctl -p /etc/sysctl.d/swappiness.conf
  322  sysctl -p /etc/sysctl.d/swappiness.conf
  323  sysctl -a | grep swappi
  324  mkdir /etc/tuned/myprofile
  325  cat >> /etc/tuned/myprofile/tuned.conf <<EOF
  326  [sysctl]
  327  vm.swappiness = 66
  328  EOF
  329  tuned-adm list
  330  tuned-adm profile myprofile
  331  tuned-adm profile
  332  sysctl -a | grep swapp
  333  vim /etc/tuned/tuned-main.conf
  334  history
  335  cat /lib/tuned/network-throughput/tuned.conf
  336  ls /etc/tuned /usr/lib/tuned/
  337  cd /
  338  ls -l
  339  history -w
  340  reboot
  341  history
[root@server ~]#