RHCSA day2 march23

root@server1 log]# history
    1  dnf install git -y
    2  vim countdown
    3  chmod +x countdown
    4  ./countdown 16
    5  ./countdown 16 lab
    6  ssh [email protected]
    7  ip a
    8  tar czvf /root/archive.tgx /etc
    9  ls -l
   10  mv archive.tgx archive.tgz
   11  ls
   12  grep -v '^$' /etc/dnsmasq.conf
   13  grep -v '^$' /etc/dnsmasq.conf | sort
   14  grep -v '^$' /etc/dnsmasq.conf
   15  grep -v '^$' /etc/dnsmasq.conf | sort
   16  grep -v '^$' /etc/dnsmasq.conf | sort > /var/tmp/dnslines.txt
   17  useradd bob
   18  mkdir userfiles
   19  find / -user bob -type f
   20  find / -user bob -type f -exec cp -a {} userfiles/ \;
   21  man sort
   22  grep -v '^$' /etc/dnsmasq.conf | sort -d
   23  history
   24  ./countdown 13 break
   25  history
   26  exit
   27  su - bob
   28  passwd bob
   29  su - bob
   30  id student
   31  id bob
   32  visudo
   33  su - bob
   34  visudo
   35  su - bob
   36  visudo
   37  ./countdown 1
   38  ls -l /etc/skel
   39  ls -a /etc/skel
   40  ls -a /home/linda
   41  vim /etc/login.defs
   42  useradd --help | less
   43  cat /etc/passwd
   44  cat /etc/shadow
   45  vim /etc/shadow
   46  su - linda
   47  ssh linda@localhost
   48  vim /etc/shadow
   49  less /etc/passwd
   50  lid -g wheel
   51  groupadd sales
   52  id bob
   53  usermod -aG sales bob
   54  id bob
   55  usermod -G wheel bob
   56  id bob
   57  usermod --help | less
   58  usermod -G sales bob
   59  ./countdown 16 lab and break
   60  ./countdown 16 "lab and break"
   61  vim /etc/login.defs
   62  touch /etc/skel/newfile
   63  groupadd profs
   64  groupadd student
   65  groupadd students
   66  useradd anna -G profs
   67  useradd anouk -G profs
   68  useradd lisa -G students
   69  useradd linda -G students
   70  for i in linda lisa anna anouk; do echo password | passwd --stdin $i; done
   71  tail -4 /etc/shadow
   72  history
   73  ls -l /etc/hosts
   74  touch testfile
   75  ls -l
   76  chown linda testfile
   77  ls -l
   78  chown linda:profs testfile
   79  ls -l
   80  chgrp students testfile
   81  ls -l
   82  mkdir -p /data/profs /data/students
   83  ls -l /data
   84  chown :profs /data/profs
   85  chgrp students /data/students
   86  ls -l
   87  ls -l /data
   88  chmod 770 /data/students
   89  chmod g+w,o-rx /data/profs
   90  ls -l /data
   91  history
   92  cd /home/linda
   93  touch rootfile
   94  su - linda
   95  touch rootfile2
   96  su - linda
   97  su - anna
   98  chmod g+s /data/profs
   99  ls -l /data/
  100  su - anna
  101  su - anouk
  102  chmod +t /data/profs
  103  ls -ld /data/profs
  104  su - anouk
  105  cd
  106  ./countdown 1 questions
  107  cd /home/linda
  108  touch roofile
  109  ls -l rootfile2
  110  ls -l rootfile
  111  ls -l rootfile2
  112  rm rootfile2
  113  touch newfile
  114  ls -l newfile
  115  su - linda
  116  history
  117  mkdir -p /files/profs /files/students
  118  cd /files
  119  ls -l
  120  chgrp profs profs
  121  chgrp students students
  122  chmod 770 *
  123  ls -l
  124  umask
  125  umask 002
  126  umask
  127  umask 022
  128  exit
  129  ./countdown 15 "lab and break"
  130  lsblk
  131  poweroff
  132  fdisk /dev/nvme0n1
  133  lsblk
  134  mkfs.xfs /dev/nvme0n1p3
  135  mount /dev/nvme0n1p3 /mnt
  136  lsblk
  137  mount
  138  lsblk
  139  findmnt
  140  vim /etc/fstab
  141  mount -a
  142  reboot
  143  fdisk /dev/nvme0n1
  144  vim /etc/fstab
  145  mkfs.xfs /dev/nvme0n1p5
  146  mkfs.ext4 /dev/nvme0n1p6
  147  mkdir /part5 /part6
  148  mount -a
  149  touch /part5/part_5_file
  150  touch /part6/part6_file
  151  vim /etc/fstab
  152  fdisk /dev/nvme0n1
  153  history
  154  reboot
  155  journalctl -xb
  156  vim /etc/fstab
  157  lsblk
  158  blkid
  159  blkid | grep p5
  160  blkid | grep p5 | awk '{ print $2 }'
  161  blkid | grep p5 | awk '{ print $2 }' >> /etc/fstab
  162  vim /etc/fstab
  163  mount -a
  164  ls /part6
  165  top
  166  ps aux | grep zombie
  167  kill -9 38339
  168  ps aux | grep zombie
  169  kill -SIGCHLD 38338
  170  kill -9 38338
  171  ps aux | grep zombie
  172  dd if=/dev/zero of=/dev/null &
  173  top
  174  echo 0 > /sys/bus/cpu/devices/cpu1/online
  175  top
  176  nice --help | less
  177  nice -20 sleep 100
  178  echo 1 > /sys/bus/cpu/devices/cpu1/online
  179  history
  180  mount | grep proc
  181  cd proc
  182  cd /proc
  183  ls
  184  cd sys
  185  ls
  186  cd vm/
  187  ls
  188  sysctl -a
  189  sysctl -a | wc
  190  tuned-adm list
  191  dnf install -y tuned
  192  dnf install -y tuned-adm
  193  tuned-adm --list
  194  tuned-adm list
  195  tuned-amd profile virtual-guest
  196  tuned-adm profile virtual-guest
  197  tuned-adm list
  198  systemctl status tuned
  199  cd /usr/lib/tuned/
  200  ls
  201  cd virtual-
  202  cd virtual-guest/
  203  ls
  204  vim tuned.conf
  205  pwd
  206  ls -ld /etc/tuned
  207  cd /etc/tuned
  208  ls
  209  mkdir sander
  210  cp /usr/lib/tuned/latency-performance/tuned.conf sander/
  211  tuned-adm list
  212  tuned-adm profile sander
  213  tuned-adm recommend
  214  history
  215  cd
  216  history
  217  ip link show
  218  ip addr show
  219  hostnamectl status
  220  hostnamectl hostname server1.example.local
  221  hostnamectl status
  222  cat /etc/hostname
  223  exit
  224  vim /etc/hosts
  225  ping google.com
  226  vim /etc/nsswitch.conf
  227  ping google.com
  228  cat /etc/resolv.conf
  229  nmtui
  230  cd /etc/NetworkManager/
  231  ls
  232  cd system-connections/
  233  ls
  234  vim ens160.nmconnection
  235  ip a
  236  cd
  237  systemctl -t help
  238  systemctl list-unit-files
  239  systemctl list-units
  240  systemctl list-units -t timer
  241  systemctl cat logrotate.timer
  242  systemctl cat logrotate.service
  243  systemctl cat logrotate.timer
  244  systemctl status logrotate.timer
  245  systemctl cat sshd.service
  246  systemctl status sshd.service
  247  kill -9 4660
  248  systemctl status sshd.service
  249  systemctl status sshd
  250  dnf install -y httpd
  251  service sshd status
  252  systemctl status httpd
  253  systemctl enable --now httpd
  254  exit
  255  history
  256  fdisk /dev/nvme0n1
  257  lslbk
  258  lsblk
  259  cat /proc/partitions
  260  fdisk -l /dev/nvme0n1
  261  mkfs.xfs /dev/nvme0n1p4
  262  cd /boot
  263  umount /dev/sda1
  264  umount /boot
  265  lsof /boot
  266  findmnt
  267  lsblk
  268  blkid
  269  mount | grep part6
  270  tune2fs -L cow /dev/nvme0n1p5
  271  mount LABEL=cow /mnt
  272  vim /etc/fstab
  273  fdisk /dev/nvme0n1
  274  mkswap /dev/nvme0n1p6
  275  free -m
  276  vim /etc/fstab
  277  swapon -a
  278  free -m
  279  history
  280  dd if=/dev/zero of=/swapfile bs=1M count=1024
  281  mkswap /swapfile
  282  chmod 0600 /swapfile
  283  vim /etc/fstab
  284  swapon -a
  285  free -m
  286  cd
  287  ./countdown 1
  288  df -h
  289  dd if=/dev/sr0 of=/rhel9.iso bs=1M
  290  mkdir /repo
  291  vim /etc/fstab
  292  mount -a
  293  ls /rhel9
  294  ls /repo/
  295  dnf install nmap
  296  dnf config-manager -h | less
  297  dnf config-manager --add-repo="file:///repo/BaseOS"
  298  dnf config-manager --add-repo="file:///repo/AppStream"
  299  dnf install nmap -y
  300  cd /etc/yum.repos.d/
  301  ls
  302  vim repo_BaseOS.repo
  303  vim repo_AppStream.repo
  304  dnf install nmap -y
  305  ssh [email protected]
  306  history
  307  cat repo_BaseOS.repo
  308  cd
  309  cat /etc/fstab
  310  dnf list 'selinux*'
  311  dnf search selinux
  312  dnf provides */Containerfile
  313  ls -l $(which dnf) $(which yum)
  314  dnf groups list
  315  dnf groups install "Virtualization Host"
  316  dnf groups list hidden
  317  history
  318  dd if=/dev/nvme0n1 of=/dev/zero &
  319  kill -USR1 37341
  320  fg
  321  dnf install -y git
  322  git clone https://github.com/sandervanvugt/rhcsa
  323  cd rhcsa/
  324  ls
  325  ./zombie
  326  systemctl status httpd
  327  exit
  328  systemctl cat httpd.service
  329  systemctl show httpd.service
  330  systemctl edit httpd.service
  331  export EDITOR=/usr/bin/vim
  332  systemctl edit httpd.service
  333  systemctl cat httpd.service
  334  systemctl daemon-reload
  335  systemctl status httpd
  336  kill -9 40478
  337  systemctl status httpd
  338  man -k systemd | less
  339  man systemd.directives
  340  man systemd.unit
  341  ./countdown 13 "break and practice"
  342  history
  343  top
  344  killall dd
  345  top
  346  dnf install nginx -y
  347  systemctl mask httpd
  348  systemctl unmask httpd
  349  systemctl mask nginx
  350  systemctl start nginx
  351  systemctl status sshd
  352  journalctl
  353  journalctl -p err
  354  journalctl -f
  355  journalctl -u sshd.service
  356  cd /var/log
  357  ls
  358  ls -l
  359  grep 'Storage' /etc/systemd/journald.conf
  360  ls -l /var/log/journal
  361  mkdir /var/log/journal
  362  ls /var/log/journal/
  363  systemctl restart systemd-journal-flush.service
  364  ls
  365  ls journal/
  366  lsblk
  367  gdisk /dev/nvme0n2
  368  pvcreate /dev/nvme0n2p1
  369  pvs
  370  vgcreate vgdata /dev/nvme0n2p1
  371  pvs
  372  vgs
  373  vgdisplay
  374  lvcreate -n lvdata -L 2G vgdata
  375  lvcreate -n lvdata -l 100%FREE vgdata
  376  lvs
  377  mkfs.ext4 /dev/vgdata/lvdata
  378  mkdir /lvdata
  379  vim /etc/fstab
  380  mount -a
  381  mount
  382  ls -l /dev/mapper/vgdata-lvdata /dev/vgdata/lvdata
  383  history