RHCSA day3 july22

[root@localhost ~]# history
    1  vim countdown
    2  chmod +x countdown
    3  ./countdown 14
    4  vim countdown
    5  ./countdown 14
    6  tar -czf /root/archive.tgz /etc
    7  ls -l archive.tgz
    8  file archive.tgz
    9  tar tvf archive.tgz
   10  history
   11  grep -v '^$' /etc/dnsmasq.conf | sort > /var/tmp/dnslines.txt
   12  echo $USER
   13  useradd bob
   14  find / -user bob
   15  mkdir /root/userfiles ; find / -user bob -exec cp {} /root/userfiles/ \;
   16  find / -user bob
   17  find / -user bob -t file
   18  find / -user bob
   19  find / -user bob -type f
   20  visudo
   21  useradd lisa
   22  passwd lisa
   23  visudo
   24  su - lisa
   25  visudo
   26  su - lisa
   27  ls -ld /etc/sudoers.d/
   28  ls -l /etc/sudoers.d/
   29  vim /etc/sudoers.d/bob
   30  visudo
   31  man visudo
   32  visudo
   33  ./countdown 12
   34  tail /etc/shadow
   35  usermod -L bob
   36  tail /etc/shadow
   37  passwd --help
   38  passwd -u bob
   39  tail /etc/shadow
   40  vim /etc/passwd
   41  vim /etc/login.defs
   42  echo $(( 99999 / 365 ))
   43  vim /etc/login.defs
   44  useradd --help | less
   45  groupadd sales
   46  usermod -aG sales student
   47  exit
   48  lid -g wheel
   49  lid sales
   50  lid -g sales
   51  chage bob
   52  vim /etc/login.defs
   53  cd /etc/skel/
   54  ls -a
   55  echo hidem > .hiddenfile
   56  echo hello > hellofile
   57  ls -a
   58  for i in anna anouk linda lisa; do useradd $i; done
   59  tail /etc/shadow
   60  usermod --help
   61  usermod -s /sbin/nologin linda
   62  usermod -s /sbin/nologin lisa
   63  groupadd students
   64  groupadd profs
   65  usermod -aG profs anna
   66  usermod -aG profs anouk
   67  id anna
   68  usermod -aG wheel anna
   69  id anna
   70  usermod -G wheel anna
   71  id anna
   72  history
   73  usermod -s /bin/bash linda
   74  usermod -s /bin/bash lisa
   75  usermod -aG students linda
   76  usermod -aG students lisa
   77  cd
   78  ./countdown 12
   79  tail /etc/group
   80  usermod -aG profs anna
   81  tail /etc/group
   82  cd
   83  mkdir /data/profs /data/students
   84  mkdir -p /data/profs /data/students
   85  cd /data
   86  ls -l
   87  chown anna:profs profs
   88  chgrp student students/
   89  ls -l
   90  chmod 770 profs
   91  ls -l
   92  chmod g+w,o-rx students/
   93  ls -l
   94  cd
   95  chmod -x countdown
   96  cat countdown
   97  ./countdown
   98  ls -l countdown
   99  chmod +x countdown
  100  ls -l countdown
  101  history
  102  cd /data/profs/
  103  su - anna
  104  chmod g+s .
  105  ls -ld .
  106  su - anna
  107  su - anouk
  108  chmod +t .
  109  ls -ld .
  110  su - anouk
  111  su - anna
  112  history
  113  cd
  114  cd /home/linda
  115  touch rootfile
  116  ls -l
  117  su - linda
  118  umask
  119  vim /etc/bashrc
  120  pwd
  121  vim .bashrc
  122  ls -a
  123  vim .bash_profile
  124  cd
  125  lsblk
  126  poweroff
  127  lsblk
  128  cat /proc/partitions
  129  ./countdown 12
  130  lsblk
  131  fdisk /dev/sda
  132  lsblk
  133  mkfs.xfs /dev/sda3
  134  mount /dev/sda3 /mnt
  135  lsblk
  136  mount
  137  df -h
  138  cd /mnt
  139  touch hellofile
  140  umount /mnt
  141  lsof /mnt
  142  cd
  143  umount /mnt
  144  mount /dev/sda3 /mnt
  145  mount
  146  mount | grep '^/'
  147  mkdir /mountpoint
  148  vim /etc/fstab
  149  mount -a
  150  findmnt --verify
  151  reboot
  152  fdisk /dev/sda
  153  lsblk
  154  mkdir /ext4 /xfs
  155  mkfs.ext4 /dev/sda5
  156  mkfs.xfs /dev/sda6
  157  vim /etc/fstab
  158  fdisk /dev/sda
  159  reboot
  160  cat /etc/fstab
  161  lsblk
  162  blkid
  163  blkid | grep sda5 | awk '{ print $2 }'
  164  blkid | grep sda5 | awk '{ print $2 }' >> /etc/fstab
  165  vim fstab
  166  vim /etc/fstab
  167  reboot
  168  history
  169  cat /etc/fstab
  170  blkid
  171  mount | grep '^/'
  172  xfs_admin --help
  173  xfs_admin -L koeien /dev/sda5
  174  umount /dev/sda5
  175  xfs_admin -L koeien /dev/sda5
  176  vim /etc/fstab
  177  lsblk
  178  fdisk /dev/sda
  179  mkswap /dev/sda6
  180  vim /etc/fstab
  181  free -m
  182  swapon -a
  183  free -m
  184  history
  185  swapon -s
  186  fdisk /dev/sda
  187  reboot
  188  ./countdown 1
  189  ./countdown 13
  190  ./countdown 12
  191  lsblk
  192  fdisk -l /dev/sda
  193  echo $(( 62914559 - 54530047 ))
  194  echo $(( 8384512 / 2 ))
  195  df -h
  196  ls
  197  vim /etc/systemd/system/stress1.service
  198  cp /etc/systemd/system/stress1.service /etc/systemd/system/stress2.service
  199  systemctl daemon-reload
  200  systemctl start stress1.service
  201  systemctl start stress2.service
  202  top
  203  echo 0 > /sys/bus/cpu/devices/cpu1/online
  204  top
  205  nice --help
  206  nice -n 10 dd if=/dev/zero of=/dev/null
  207  nice -n 10 dd if=/dev/zero of=/dev/null &
  208  nice -n -5 dd if=/dev/zero of=/dev/null &
  209  top
  210  history
  211  sysctl -a
  212  sysctl -a | wc
  213  systemctl status tuned
  214  ip a
  215  ip addr add dev ens160 10.0.0.24/16
  216  ip a
  217  ifconfig
  218  man ifconfig
  219  ip route show
  220  nmtui
  221  ip a
  222  ping nu.nl
  223  ./countdown 12
  224  vim /etc/bashrc
  225  rpm -qa
  226  rpm -qf /etc/dnsmasq.conf
  227  rpm -qc dnsmasq
  228  df -h
  229  dd if=/dev/sr0 of=/rhel9.iso bs=1M
  230  mkdir /repo
  231  echo "/rhel9.iso   /repo    iso9660    defaults   0 0" >> /etc/fstab
  232  mount -a
  233  ls /repo
  234  cd /repo/BaseOS/
  235  ls
  236  ls Packages/
  237  ls
  238  ls repodata/
  239  cd ../AppStream/
  240  ls
  241  cd
  242  cd /etc/yum.repos.d/
  243  ls
  244  vim baseos.repo
  245  dnf repolist
  246  vim appstream.repo
  247  dnf repolist
  248  vim appstream.repo
  249  pwd
  250  cat baseos.repo
  251  cat appstream.repo
  252  history | tail -15
  253  vim baseos.repo
  254  vim appstream.repo
  255  dnf install nmap
  256  vim appstream.repo
  257  vim baseos.repo
  258  dnf install tuned
  259  ls *
  260  ls
  261  pwd
  262  dnf list selinux*
  263  dnf search seinfo
  264  dnf search all seinfo
  265  dnf provides */Containerfile
  266  cd
  267  dnf groups list
  268  dnf group install "Virtualization Host"
  269  dnf history
  270  history
  271  history | tail -30
  272  history | tail -30 | head -25
  273  cat /etc/yum.repos.d/baseos.repo
  274  cat /etc/yum.repos.d/appstream.repo
  275  systemctl -t help
  276  systemctl list-units -t service
  277  systemctl cat stress1.service
  278  cd /etc/systemd/system/
  279  cp stress1.service sleep.service
  280  vim sleep.service
  281  systemctl start sleep.service
  282  systemctl status sleep.service
  283  systemctl status sshd
  284  dnf install httpd
  285  ls -l $(which dnf) $(which yum)
  286  systemctl status httpd
  287  systemctl start httpd
  288  systemctl status httpd
  289  systemctl enable httpd
  290  systemctl status httpd
  291  systemctl cat sshd.service
  292  systemctl cat httpd.service
  293  systemctl edit httpd.service
  294  export SYSTEMD_EDITOR=/usr/bin/vim
  295  systemctl edit httpd.service
  296  systemctl status httpd.service
  297  systemctl daemon-reload
  298  kill -9 38511
  299  systemctl status httpd.service
  300  vimtutor
  301  vim .bashrc
  302  ls -ld /etc/systemd/system /usr/lib/systemd/system
  303  ls -ld /etc/tuned /usr/lib/tuned
  304  systemctl show httpd.service
  305  man systemd.directives
  306  man systemd.unit
  307  systemctl list-dependencies
  308  history
  309  systemctl mask httpd
  310  systemctl status httpd
  311  systemctl stop httpd
  312  systemctl daemon-reload
  313  systemctl stop httpd
  314  systemctl unmask httpd
  315  systemctl stop httpd
  316  systemctl mask httpd
  317  systemctl start httpd
  318  history
  319  journalctl
  320  journalctl -o verbose
  321  journalctl -xb
  322  grep 'Storage=' /etc/systemd/journald.conf
  323  mkdir /var/log/journal
  324  systemctl list-unit-files journal*
  325  systemctl list-unit-files journal
  326  cd /var/log
  327  mkdir journal
  328  ls journal/
  329  systemctl restart systemd-journal-flush.service
  330  ls journal/
  331  cd /etc/logrotate.d/
  332  cd ..
  333  vim logrotate.conf
  334  cd
  335  dnf install tuned
  336  systemctl status tuned
  337  systemctl start tuned
  338  systemctl status tuned
  339  tuned-adm list
  340  tuned-adm pprofile balanced
  341  tuned-adm profile balanced
  342  tuned-adm list
  343  vim /usr/lib/tuned/balanced/tuned.conf
  344  tuned-adm profile virtual-guest
  345  top
  346  echo 1 > /sys/bus/cpu/devices/cpu1/online
  347  top
  348  lsblk
  349  fdisk /dev/sda
  350  pvcreate /dev/sda8
  351  pvs
  352  vgcreate vgdata /dev/sda8
  353  pvs
  354  vgs
  355  lvcreate -n lvdata -L 500M vgdata
  356  lvs
  357  vgs
  358  pvs
  359  mkfs.ext4 /dev/vgdata/lvdata
  360  vim /etc/fstab
  361  mount -a
  362  mkdir /lvdata
  363  mount -a
  364  mount
  365  ls -l /dev/mapper/vgdata-lvdata /dev/vgdata/lvdata
  366  history
  367  vgs
  368  vgdisplay
  369  xxd /dev/sda8 | less
  370  history
  371  l
  372  lsblk
  373  fdisk /dev/nvme0n1
  374  vgcreate vgfiles /dev/nvme0n1p1
  375  lvcreate -l 255 -n lvfiles /dev/vgfiles
  376  mkfs.ext4 /dev/vgfiles/lvfiles
  377  df -h
  378  lsblk
  379  mount /dev/vgfiles/lvfiles /mnt
  380  df -h
  381  vgs
  382  vgextend vgfiles /dev/nvme0n1p2
  383  vgs
  384  lvextend -r -l +50%FREE /dev/vgfiles/lvfiles
  385  df -h
  386  history
  387  pvs
  388  pvdisplay
  389  echo $(( 255 * 4 ))
  390  lvextend -r -l +100%FREE /dev/vgfiles/lvfiles
  391  df -h
  392  vgs
  393  pvmove --help | less
  394  man pvmove
  395  pvmove /dev/nvme0n1p2
  396  poweroff
  397  fdisk /dev/sdb
  398  lsblk
  399  vgcreate vgdemo /dev/sdb1
  400  lvcreate -L 1G -n lvdemo /dev/vgdemo
  401  vgextend vgdemo /dev/sdb2
  402  pvs
  403  lvextend -L +500M /dev/vgdemo/lvdemo /dev/sdb2
  404  pvs
  405  mkfs.ext4 /dev/vgdemo/lvdemo
  406  umount /mnt; mount /dev/vgdemo/lvdemo /mnt
  407  df -h
  408  dd if=/dev/zero of=/mnt/bigfile bs=1M count=1100
  409  pvmove -v /dev/sdb2 /dev/sdb1
  410  pvs
  411  vgreduce vgdemo /dev/sdb2
  412  history
  413  vgdisplay vgfiles
  414  history
  415  dnf install stratis-cli stratisd
  416  systemctl enable --now stratisd
  417  fdisk /dev/sdb
  418  stratis pool create mypool /dev/sdb3
  419  stratis pool list
  420  stratis pool add-data /dev/sdb4
  421  stratis pool add-data mypool /dev/sdb4
  422  stratis blockdev list
  423  stratis fs create mypool myfs1
  424  stratis fs list
  425  stratis pool list
  426  mkdir /myfs
  427  lsblk --output=UUID /dev/stratis/mypool/myfs1
  428  lsblk /dev/stratis/mypool/myfs1
  429  blkid
  430  stratis fs list
  431  stratis fs list | awk '{ $NF }'
  432  stratis fs list | awk '{ print $NF }'
  433  stratis fs list | awk '{ print $NF }' | tail -n 1
  434  stratis fs list | awk '{ print $NF }' | tail -n 1 >> /etc/fstab
  435  vim /etc/fstab
  436  mkdir /myfs
  437  mount -a
  438  mount
  439  stratis fs list
  440  df -h
  441  ./countdown 13
  442  systemctl list-depedendencies
  443  systemctl list-units
  444  reboot
  445  mount
  446  df -h
  447  touch aa
  448  mount -o remount,rw /
  449  systemctl list-units
  450  reboot
  451  systemctl list-units
  452  passwd
  453  systemctl start graphical.target
  454  vim /etc/default/grub
  455  grub2-mkconfig -o /boot/grub2/grub.cfg
  456  systemctl list-units -t target
  457  systemctl list-unit-files -t target
  458  systemctl cat sound.target
  459  systemctl cat graphical.target
  460  systemctl get-default
  461  systemctl isolate multi-user.target
  462  systemctl start graphical.target
  463  vim /etc/fstab
  464  cd /run/systemd/generator/
  465  ls
  466  vim mountpoint.mount
  467  cp mountpoint.mount /etc/systemd/system/
  468  vim /etc/fstab
  469  systemctl daemon-reload
  470  systemctl enable mountpoint.mount
  471  systemctl cat sshd.service
  472  vim /etc/systemd/system/mountpoint.mount
  473  systemctl daemon-reload
  474  systemctl enable mountpoint.mount
  475  systemctl status mountpoint.mount
  476  ls
  477  pwd
  478  cd ..
  479  cd generator/
  480  ls
  481  cat /etc/fstab
  482  vim myfs.mount
  483  cd /dev/disk/
  484  tree
  485  blkid
  486  vim myfs.mount
  487  cd /run/systemd/generator/
  488  vim myfs.mount
  489  cp myfs.mount /etc/systemd/system
  490  vim /etc/fstab
  491  vim /etc/systemd/system/myfs.mount
  492  reboot
  493  systemctl status myfs.mount
  494  systemctl enable myfs.mount
  495  reboot
  496  systemctl cat tmp.mount
  497  ls -l /tmp; systemctl enable --now tmp.mount
  498  ls -l /tmp
  499  systemctl disable --now tmp.mount
  500  history
  501  getenforce
  502  setenforce
  503  setenforce disabled
  504  ls -Z /etc
  505  dnf install -y httpd
  506  ls -Z /var/www
  507  ps Zaux | grep http
  508  systemctl enable --now httpd
  509  systemctl unmask httpd
  510  systemctl enable --now httpd
  511  ps Zaux | grep ttp
  512  vim /etc/httpd/conf/httpd.conf
  513  mkdir /web
  514  vim /web/index.html
  515  systemctl restart httpd
  516  curl localhost
  517  getenforce
  518  setenforce permissive
  519  curl localhost
  520  setenforce enforcing
  521  vim /etc/httpd/conf/httpd.conf
  522  systemctl restart httpd
  523  curl localhost
  524* setenforce permissive
  525  curl localhost
  526  setenforce enforcing
  527  ps Zaux | grep http
  528  ls -ldZ /web
  529  grep AVC /var/log/audit/audit.log
  530  history
  531  ./countdown 12
  532  getenforce
  533  curl localhost
  534  ls -dZ /web /var/www/html
  535  man semanage-fcontext
  536  semanage fcontext -a -t httpd_sys_content_t "/web(/.*)?"
  537  ls -dZ /web /var/www/html
  538  restorecon -Rv /web
  539  curl localhost
  540  cp /etc/hosts .
  541  ls -Z /etc/hosts ./hosts
  542  mv hosts /web/
  543  ls -Z /web/hosts
  544  curl http://localhost/hosts
  545  ls -Z /web
  546  restore -Rv /web
  547  restorecon -Rv /web
  548  dnf install -y selinux-policy-doc
  549  man -k _selinux
  550  man -k _selinux | wc
  551  man -k _selinux | grep http
  552  man -k _selinux
  553  man httpd_selinux
  554  man semanage-port
  555  vim /etc/httpd/conf/httpd.conf
  556  systemctl restart httpd
  557  systemctl status httpd
  558  systemctl stop
  559  systemctl stop httpd
  560  systemctl start httpd
  561  systemctl status httpd
  562  journalctl -u httpd
  563  man semanage-port
  564  semanage port -a -t http_port_t -p tcp 82
  565  systemctl restart httpd
  566  systemctl status httpd
  567  semanage boolean -l -C
  568  getsebool -a | grep ftp
  569  setsebool -P ftpd_anon_write on
  570  getsebool -a | grep ftp
  571  dnf provides */sealart
  572  dnf provides */sealert
  573  journalctl | grep sealert
  574  sealert -l d88f91a8-dc46-4a21-bc8f-be814360abb3 | less
  575  journalctl | grep sealert
  576  sealert -l d320c3e4-aa80-43fb-a4f4-1f22a0c604a0 | less
  577  journalctl | grep sealert
  578  journalctl | grep sealert | tail -1
  579  journalctl | grep sealert | tail -1 | awk '{ print $NF }'
  580  sealert -l $(journalctl | grep sealert | tail -1 | awk '{ print $NF }')
  581  sealert -l $(journalctl | grep sealert | tail -1 | awk '{ print $NF }') | less
  582  history
  583  timedatectl show
  584  timedatectl status
  585  timedatectl ntp-servers -h
  586  man timedatectl
  587  systemctl status chrony
  588  systemctl status chronyd.service
  589  vim /etc/chrony.conf
  590  systemctl restart chronyd.service
  591  chronyc sources
  592  history