RHCSA day2 feb24

[root@rhcsalabs ~]# history
    1  dnf install nmap -y
    2  vim countdown.sh
    3  chmod +x countdown.sh
    4  ./countdown.sh 19
    5  tar zcvf /root/archive.tgz /etc
    6  ls -l
    7  tar tvf archive.tgz
    8  tar zcvf /root/archive.tgz -C /etc
    9  tar zcvf /root/archive.tgz -C /etc .
   10  tar tvf archive.tgz
   11  cd /etc
   12  tar -cvzf /root/archive.tgz .
   13  history
   14  cut -d : -f 1 /etc/passwd
   15  cat /etc/passwd
   16  cut -d : -f 1 /etc/passwd | sort
   17  cut -d : -f 1 /etc/passwd | sort | grep -v '^$'
   18  cut -d : -f 1 /etc/passwd | sort | grep -v '^$' >/var/tmp/users
   19  cat /var/tmp/users
   20  man cut
   21  man sort
   22  sort -b /etc/passwd
   23  sort -b /etc/passwd | cut -d : -f 1
   24  cd
   25  useradd bob
   26  mkdir userfiles
   27  find / -user "bob" -type f
   28  find / -user "bob" -type f -exec cp {} /root/userfiles \; 2>/dev/null
   29  ls -al /root/userfiles/
   30  history
   31  ls -l $(which yum) $(which dnf)
   32  DNF
   33  dnf install nmap
   34  df -h
   35  dd if=/dev/sr0 of=/rhel9.iso bs=1M
   36  mkdir /repo
   37  vim /etc/fstab
   38  mount -a
   39  ls /repo
   40  cd /repo
   41  ls BaseOS/
   42  ls BaseOS/Packages/
   43  cd
   44  history
   45  lsblk
   46  dnf config-manager --add-repo="file:///repo/AppStream"
   47  dnf config-manager --add-repo="file:///repo/BaseOS"
   48  dnf repolist
   49  dnf search nmap
   50  dnf install nmap
   51  cd /etc/yum.repos.d/
   52  ls
   53  vim repo_BaseOS.repo
   54  vim repo_AppStream.repo
   55  history
   56  dnf install nmap
   57  history
   58  tail -1 /etc/fstab
   59  cd /repo/AppStream/Packages/
   60  ls
   61  cd
   62  dnf install -y git
   63  git clone https://github.com/sandervanvugt/rhcsa9
   64  cd rhcsa9/
   65  ls
   66  cd labs/
   67  ls
   68  ./live-lab1-grade.sh
   69  vim live-lab1-grade.sh
   70  history
   71  dnf groups list
   72  dnf groups install "Development Tools"
   73  history
   74  cd
   75  ./countdown.sh 13
   76  history
   77  lsblk
   78  exit
   79  ./countdown.sh 12
   80  ./countdown.sh 1
   81  ./countdown.sh 13
   82  ./countdown.sh 15
   83  visudo
   84  tail -1 /etc/passwd
   85  id bob
   86  su - bob
   87  passwd bob
   88  su - bob
   89  journalctl
   90  usermod -aG wheel bob
   91  su - bob
   92  visudo
   93  useradd linda
   94  echo password | passwd --stdin linda
   95  su - linda
   96  visudo
   97  su - linda
   98  history
   99  #find / -name ".bash_history" -type f -exec rm -f {} \;
  100  dnf repolist
  101  ps aux | less
  102  less /etc/passwd
  103  usermod --help
  104  vim /etc/login.defs
  105  cd /etc/skel
  106  ls
  107  ls -a
  108  touch hello
  109  ls -a
  110  useradd sander
  111  ls -al /home/sander
  112  cd
  113  less /etc/passwd
  114  id bob
  115  grep bob /etc/passwd
  116  grep bob /etc/group
  117  lid wheel
  118  lid -g wheel
  119  useradd -g wheel baduser
  120  id baduser
  121  grep wheel /etc/group
  122  grep baduser /etc/passwd
  123  lid -g wheel
  124  chage bob
  125  history
  126  cd rhcsa9/labs/
  127  ls
  128  vim live-lab2-grade.sh
  129  ./live-lab2-grade.sh
  130  vim /etc/login.defs
  131  touch /etc/skel/newfile
  132  groupadd profs
  133  groupadd students
  134  useradd -G students linda
  135  useradd -G students lisa
  136  usermod -aG students linda
  137  useradd -G profs anna
  138  useradd -G profs anouk
  139  history | grep git
  140  ./live-lab2-grade.sh
  141  ls -l
  142  cd /home/linda
  143  echo linda > lindafile
  144  ls -l lindafile
  145  chmod u-rw
  146  chmod u-rw linda
  147  chmod u-rw lindafile
  148  chown linda lindafile
  149  ls -l lindafile
  150  su - linda
  151  cd
  152  cd /etc/skel
  153  mkdir tryme
  154  chmod 2770 tryme
  155  useradd pablo
  156  ls -l pabl
  157  ls -l /home/pablo
  158  mkdir -p /data/profs /data/students
  159  cd /data
  160  ls -l
  161  id
  162  chown :profs profs
  163  ls -l
  164  chgrp students students
  165  ls -l
  166  chmod 770 students
  167  ls -l
  168  chmod g+w,o-rx profs
  169  ls -l
  170  su - anna
  171  chmod g+s /data/profs
  172  ls -ld /data/profs
  173  su - anna
  174  su - anouk
  175  chmod +t /data/profs
  176  su - anouk
  177  chmod g-x,o+x /data/profs
  178  ls -ld /data/profs
  179  chmod g+x,o-x /data/profs
  180  cd /profs
  181  cd profs
  182  mkdir one two three
  183  for i in one two three; do touch $i/four; done
  184  for i in one two three; do touch $i/five; done
  185  tree
  186  ls -lR
  187  chmod -R g+s .
  188  ls -lR
  189  chmod -R g-s .
  190  find . -type d
  191  find . -type d -exec chmod g+s {} \;
  192  ls -lR
  193  history
  194  who; find . -exec ls -l {} \;
  195  umask
  196  touch '-'
  197  ls -l
  198  echo hello > \-
  199  ls
  200  rm \-
  201  rm -- \-
  202  cd
  203  history
  204  poweroff
  205  echo h > /proc/sysrq-trigger
  206  dmesg
  207  ls -l /data
  208  rm -rf /data
  209  mkdir -p /data/profs /data/students
  210  cd /data
  211  chgrp students students
  212  chgrp profs profs
  213  ls -l
  214  chmod 770 *
  215  ls -l
  216  umask
  217  cd /etc/
  218  vim bashrc
  219  cd /etc/profile.d/
  220  ls
  221  echo $UID
  222  exit
  223  vim umask.sh
  224  grep 1005 /etc/passwd
  225  grep 1004 /etc/passwd
  226  cat /etc/passwd
  227  su - lisa
  228  lsblk
  229  cat /proc/partitions
  230  df -h
  231  lsblk
  232  poweroff
  233  lsblk
  234  blkid
  235  cat /etc/fstab
  236  touch ff
  237  mount -o remount,rw /
  238  touch ff
  239  blkid | awk '/sda5/ { print $2 }'
  240  blkid | awk '/sda5/ { print $2 }' >> /etc/fstab
  241  vim /etc/fstab
  242  mount -a
  243  lsblk
  244  reboot
  245  #systemd.unit=emergency.target
  246  history
  247  ls /dev/disk/
  248  ls /dev/disk/by-uuid/
  249  ls /dev/disk/by-uuid/ -l
  250  free -m
  251  fdisk /dev/sda
  252  mkswap -L myswap /dev/sda7
  253  free -m
  254  vim /etc/fstab
  255  swapon -a
  256  free -m
  257  history
  258  cd rhcsa9/
  259  git pull
  260  cd labs/
  261  ls
  262  ls -l
  263  systemctl list-units
  264  systemctl status vmtoolsd.service
  265  systemctl status sshd.service
  266  cd
  267  dnf install -yn httpd
  268  dnf install -y httpd
  269  systemctl status httpd.service
  270  systemctl enable --now httpd
  271  systemctl status httpd.service
  272  systemctl -t help
  273  systemctl list-units -t mounts
  274  systemctl list-units -t mount
  275  systemctl cat ext4.mount
  276  systemctl cat -.mount
  277  systemctl cat -- -.mount
  278  systemctl status sshd
  279  kill -9 1080
  280  systemctl status sshd
  281  systemctl cat sshd.service
  282  systemctl edit httpd.service
  283  export EDITOR=/usr/bin/vim
  284  systemctl cat httpd.service
  285  systemctl cat sshd.service
  286  systemctl cat httpd.service
  287  systemctl show httpd.service
  288  man systemd.directives
  289  man systemd.resource-control
  290  systemctl daemon-reload
  291  systemctl disable --now httpd
  292  systemctl mask httpd
  293  systemctl start httpd.service
  294  systemctl unmask httpd.service
  295  systemctl start httpd.service
  296  systemctl stop httpd.service
  297  systemctl status httpd
  298  journalctl
  299  journalctl -x
  300  journalctl -xb
  301  journalctl -p err
  302  grep 'Storage=' /etc/systemd/journald.conf
  303  mkdir /var/log/journal
  304  ls -l /var/log/journal/
  305  systemctl daemon-reload
  306  ls -l /var/log/journal/
  307  systemctl restart systemd-journal-flush
  308  ls -l /var/log/journal/
  309  history
  310  cd rhcsa9/
  311  ls
  312  cd
  313  dd if=/dev/zero of=/dev/null &
  314  top
  315  echo 0 > /sys/bus/cpu/devices/cpu1/online
  316  lscpu | less
  317  top
  318  renice --help | less
  319  renice -n 5 -p 9944
  320  top
  321  nice --help
  322  nice -n -5 dd if=/dev/zero of=/dev/null &
  323  top
  324  killall dd
  325  history
  326  echo 1 > /sys/bus/cpu/devices/cpu1/online
  327  tuned-adm list
  328  tuned-adm active
  329  tuned-adm recommend
  330  tuned-adm profile balanced
  331  tuned-adm active
  332  history
  333  systemctl status tuned
  334  echo vm.swappiness = 33 > /etc/sysctl.d/swappiness.conf
  335  sysctl -a
  336  sysctl -a | wc -l
  337  sysctl -a | grep swappi
  338  sysctl -p /etc/sysctl.d/swappiness.conf
  339  sysctl -a | grep swappi
  340  ls -l /usr/lib/tuned/
  341  less /usr/lib/tuned/desktop/tuned.conf
  342  mkdir /etc/tuned/myprofile
  343  vim /etc/tuned/myprofile/tuned.conf
  344  tuned-adm list
  345  tuned-adm profile myprofile
  346  tuned-adm active
  347  sysctl -a | grep swappi
  348  vim /etc/tuned/tuned-main.conf
  349  ip a
  350  systemctl status NetworkManager
  351  nmtui
  352  ip a
  353  exit
  354  ./countdown.sh 16
  355  ./countdown.sh 14
  356  cd /etc/NetworkManager/system-connections/
  357  ls
  358  cat ens160.nmconnection
  359  cd
  360  reboot
  361  exit
  362  history