RHCSA day3 sept22

[root@rhcsalive ~]# history
    1  vim countdown
    2  bash ./countdown 10
    3  vim countdown
    4  bash ./countdown 10
    5  exit
    6  rm -f /etc/sudoers.d/this
    7  bash countdown 12
    8  ssh 192.168.29.21
    9  dnf search tmux
   10  man cp
   11  visudo
   12  su - bob
   13  passwd bob
   14  su - bob
   15  which useradd
   16  which usermod
   17  which passwd
   18  visudo
   19  su - bob
   20  visudo
   21  su - bob
   22  visudo
   23  useradd --help | less
   24  history
   25  history -d 24
   26  history
   27  echo password | passwd --stdin bob
   28  vim /etc/login.defs
   29  chage bob
   30  grep bob /etc/shadow
   31  man 5 shadow
   32  cat /etc/passwd
   33  usermod -s /sbin/nologin bob
   34  su - bob
   35  usermod -s /bin/passwd bob
   36  su - bob
   37  lid\
   38  lid
   39  reset
   40  lid -g wheel
   41  grep wheel /etc/group
   42  usermod --help
   43  groupmod --help
   44  groupadd aaa
   45  groupadd bbb
   46  groupadd ccc
   47  groupadd ddd
   48  useradd whoever -G aaa
   49  id whoever
   50  usermod -G bbb whoever
   51  id whoever
   52  usermod -aG aaa whoever
   53  groupmod -U whoever ccc
   54  id whoever
   55  groupod -U bob ccc
   56  group,od -U bob ccc
   57  groupmod -U bob ccc
   58  lid -g ccc
   59  groupmod -aU whoever ccc
   60  lid -g ccc
   61  bash countdown 15
   62  ldd lid
   63  which lid
   64  which /sbin/lid
   65  ldd /sbin/lid
   66  ldd $(which getent)
   67  cd /etc/pam.d/
   68  ls
   69  vim passwd
   70  vim system-auth
   71  cd
   72  vim /etc/login.defs
   73  cd /etc/skel/
   74  touch myfile
   75  for i in anna anouk linda lisa; do useradd $i; done
   76  cat /etc/passwd
   77  for i in anna anouk linda lisa; do echo password | passwd --stdin $i; done
   78  groupadd students
   79  groupadd profs
   80  usermod -aG profs anna
   81  usermod -aG profs anouk
   82  usermod -aG linda students
   83  usermod -aG students linda
   84  usermod -aG students lisa
   85  history
   86  cd
   87  vim myblah
   88  for in in `cat myblah`;do echo $i is in myblah; done
   89  usermod -aG
   90  cd /home
   91  ls -l
   92  cd
   93  vim permissions.txt
   94  cat permissions.txt
   95  mkdir specialx
   96  cp /etc/[a-e]* specialx/
   97  ls -l specialx/
   98  ls -ld specialx/
   99  chmod -x specialx/
  100  ls -ld specialx/
  101  chmod -R +x specialx/
  102  ls -ld specialx/
  103  ls -l specialx/
  104  chmod -R -x specialx/
  105  ls -l specialx/
  106  ls -ld specialx/
  107  chmod -R +X specialx/
  108  ls -ld specialx/
  109  ls -l specialx/
  110  history
  111  mkdir -p /data/profs /data/students
  112  ls -l /data
  113  chown :profs /data/profs
  114  chgrp students /data/students
  115  ls -l /data
  116  chmod 770 /data/students
  117  ls -l /data
  118  chmod g+w,o-rx /data/profs
  119  ls -l /data
  120  #usermod -aG profs kees tom
  121  #usermod -aG profs tom
  122  usermod --help | less
  123  usermod -aG students,profs bob
  124  id bob
  125  cd /home/linda
  126  ls l
  127  ls -l
  128  touch rootfile
  129  su - linda
  130  chattr +i hhh
  131  lsattr
  132  rm -f hhh
  133  chattr -i hhh
  134  rm hhh
  135  su - anna
  136  chmod g+s /data/profs
  137  su - anna
  138  su - anouk
  139  chmod +t /data/profs
  140  ls -ld /data/profs
  141  su - anouk
  142  umask
  143  touch um1
  144  umask 027
  145  touch um2
  146  ls -l um*
  147  mkdir udir1
  148  ls -ld udir1/
  149  umask 022
  150  mkdir udir2
  151  ls -ld ud*
  152  vim /etc/bashrc
  153  vim .bashrc
  154  su - linda
  155  cd
  156  ./countdown 15
  157  ls -l countdown
  158  chmod +x countdown
  159  ./countdown 15
  160  mkdir -p /files/profs /files/students
  161  umask 007
  162  cd /files
  163  chgrp profs profs
  164  chgrp students students
  165  chmod 770 *
  166  ls -l
  167  exit
  168  tar czvf /root/archive.tgz /etc
  169  grep -v '^$' /etc/dnsmasq.conf |sort > /var/tmpdnslines.txt
  170  less /var/tmpdnslines.txt
  171  vim sortfile
  172  sort sortfile
  173  useradd bob
  174  mkdir /root/userfiles; find / -user bob -exec cp -rf {} /root/userfiles/ \;
  175  ls /root/userfiles/
  176  find / -user bob -exec cp {} /root/bobfiles \;
  177  ls
  178  file bobfiles
  179  find / -user bob -exec cp {} /root/bobfilestwo/ \;
  180  find / -user bob -exec cp -rf {} /root/bobfilesthree/ \;
  181  ls
  182  ls bobfilesthree/
  183  visudo
  184  vim /etc/sudoers.d/this
  185  lsblk
  186  vim /etc/bashrc
  187  vim .bashrc
  188  su - lisa
  189  vim /etc/bashrc
  190  cd /etc/skel/
  191  ls -a
  192  vim .bashrc
  193  vim /etc/login.defs
  194  cd
  195  poweroff
  196  touch dd
  197  lsblk
  198  blkid
  199  cp /etc/fstab /etc/fstab.bak
  200  grep sda3 /etc/fstab
  201  blkid | grep sda3
  202  blkid | grep sda3 | awk '{ print $2 }'
  203  blkid | grep sda3 | awk '{ print $2 }' >> /etc/fstab
  204  vim /etc/fstab
  205  reboot
  206  history
  207  lsblk -o UUID /dev/sda3
  208  vim /etc/fstab
  209  mount -o remount,rw /
  210  history
  211  rpm -qf $(which useradd)
  212  rpm -qf `which useradd`
  213  poweroff
  214  cd /etc/default/
  215  vim grub
  216  grub2-mkconfig -o /boot/grub2/grub.cfg
  217  vim grub
  218  grub2-mkconfig -o /boot/grub2/grub.cfg
  219  reboot
  220  systemctl list-units -t target
  221  systemctl get-default
  222  history
  223  reboot
  224  cd rhcsa/
  225  ./countdown 1
  226  history
  227  cd /etc/dnf/
  228  cd
  229  ls
  230  git clone https://github.com/sandervanvugt/rhcsa
  231  dnf install git
  232  git clone https://github.com/sandervanvugt/rhcsa
  233  cd rhcsa
  234  ls
  235  history
  236  vim stress1.service
  237  vim stress2.service
  238  cp stres* /etc/systemd/system
  239  systemctl daemon-reload
  240  systemctl start stress1
  241  systemctl start stress2
  242  top
  243  echo 0 > /sys/bus/cpu/devices/cpu1/online
  244  top
  245  killall dd
  246  kill -9 4515
  247  vim stress2.service
  248  top
  249  lsblk
  250  fdisk /dev/sdb
  251  lsblk
  252  pvcreate /dev/sdb1
  253  pvs
  254  history
  255  vgcreate -s 8M vgdata /dev/sdb1
  256  vgs
  257  vgdisplay vgdata
  258  echo $(( 127 * 8 ))
  259  lvcreate -n lvdata -L 1G vgdata
  260  lvcreate -n lvdata -l 127 vgdata
  261  lvs
  262  mkfs.ext4 /dev/vgdata/lvdata
  263  vim /etc/fstab
  264  mount -a
  265  mkdir /lvdata
  266  mount -a
  267  mount
  268  tail -1 /etc/fstab
  269  ls -l /dev/vgdata/lvdata /dev/mapper/vgdata-lvdata
  270  history
  271  df -h
  272  vgs
  273  vgextend vgdata /dev/sdb2
  274  vgs
  275  lvextend -r -l +50%FREE /dev/vgdata/lvdata
  276  lvs
  277  df -h
  278  pvs
  279  fdisk /dev/sdb
  280  vgcreate vgdemo /dev/sdb3
  281  lvcreate -L 1G -n lvdemo /dev/vgdemo
  282  vgextend vgdemo /dev/sdb4
  283  pvs
  284  lvextend -L +500M /dev/vgdemo/lvdemo /dev/sdb4
  285  pvs
  286  mkfs.ext4 /dev/vgdemo/lvdemo
  287  mount /dev/vgdemo/lvdemo /mnt
  288  df -h
  289  dd if=/dev/zero of=/mnt/bigfile bs=1M count=1100
  290  pvs
  291  pvmove -v /dev/sdb4 /dev/sdb3
  292  pvs
  293  vgreduce vgdemo /dev/sdb4
  294  vgs
  295  pvs
  296  history
  297  fdisk -l /dev/sdb
  298  ./countdown 13
  299  getenforce
  300  setenforce -h
  301  dnf install httpd
  302  systemctl enable --now httpd
  303  ps Zaux | grep httpd
  304  ls -lZ /var/www
  305  history
  306  mkdir /web
  307  vim /web/index.html
  308  ls -lZ /web
  309  ls -ldZ /web
  310  vim /etc/httpd/conf/httpd.conf
  311  systemctl restart httpd
  312  curl localhost
  313  getenforce
  314  setenforce permissive
  315  curl localhost
  316  ls -Z /web/index.html
  317  ps Zaux | grep httpd
  318  grep AVC /var/log/audit/audit.log
  319  ls -ldZ /var/www /web
  320  man semanage-fcontext
  321  # semanage fcontext -a -t httpd_sys_content_t "/web(/.*)?"
  322         # restorecon -R -v /web
  323  semanage fcontext -a -t httpd_sys_content_t "/web(/.*)?"
  324  ls -ldZ /web
  325  restorecon -Rv /web
  326  ls -ldZ /web
  327  setenforce enforcing
  328  curl localhost
  329  history
  330  ls -Z /etc/hosts
  331  cp /etc/hosts .
  332  ls -Z hosts
  333  rm -f /etc/hosts
  334  mv hosts /etc/hosts
  335  ls -Z /etc/hosts
  336  restorecon -v /etc/hosts
  337  semanage fcontext -l -C
  338  semanage port -l -C
  339  man -k _selinux
  340  dnf search selinux
  341  dnf install selinux-policy-doc
  342  man -k _selinux
  343  man -k _selinux | wc
  344  man httpd_selinux
  345  ./countdown 13
  346  vim /etc/httpd/conf/httpd.conf
  347  getenforce
  348  systemctl restart httpd
  349  journalctl -xeu httpd.service
  350  journalctl | grep sealert
  351  sealert -l 82246ea3-4ecd-40f4-bbf4-e44c374b07be | less
  352  semanage port -a -t http_port_t -p tcp 82
  353  systemctl restart httpd
  354  ss tunap
  355  ss -tunap
  356  journalctl | grep sealert
  357  sealert -l cdb376f6-c024-4c54-bec6-3387764bf9e4 | less
  358  grep AVC /var/log/audit/audit.log
  359  man httpd_selinux
  360  ssh student@192.168.29.150
  361  ssh root@192.168.29.150
  362  getsebool -a
  363  getsebool -a | wc
  364  getsebool -a | grep ftp
  365  setsebool -P ftpd_anon_write on
  366  getsebool -a | grep ftp
  367  poweroff
  368  lsblk
  369  dnf install stratis-cli
  370  systemctl enable --now stratisd
  371  dnf install bash-completion
  372  stratis pool create mypool /dev/nvme0n1
  373  stratis pool list
  374  stratis pool add-data mypool /dev/nvme0n2
  375  stratis pool list
  376  stratis blockdev list
  377  stratis fs create mypool myfs1
  378  stratis fs create mypool myfs2
  379  stratis fs list
  380  stratis pool list
  381  mkdir /myfs1
  382  mkdir /myfs2
  383  lsblk --output=UUID /dev/stratis/mypool/myfs1
  384  lsblk --output=UUID /dev/stratis/mypool/myfs1 >> /etc/fstab
  385  lsblk --output=UUID /dev/stratis/mypool/myfs2 >> /etc/fstab
  386  vim /etc/fstab
  387  mount -a
  388  mount
  389  df -h
  390  lsblk
  391  stratis pool list
  392  reboot
  393  ./countdown 13
  394  ip a
  395  hostnamectl set-hostname rhcsalive.example.com
  396  exit
  397  dnf install nfs-utils -y
  398  vim /etc/hosts
  399  ping nfsserver
  400  showmount -e nfsserver
  401  dnf install autofs
  402  vim /etc/auto.master
  403  vim /etc/auto.misc
  404  vim /etc/auto.master
  405  vim /etc/auto.nfsdata
  406  systemctl enable --now autofs
  407  ls -l /
  408  cd /nfsdata
  409  ls -al
  410  cd files
  411  pwd
  412  mount
  413  vim /etc/auto.master
  414  vim /etc/auto.home
  415  systemctl restart autofs
  416  cd /home/ldap/
  417  cd ldapuser1
  418  cd ../ldapuser2
  419  cd ..
  420  ls
  421  history
  422  reboot
  423  systemctl status firewalld
  424  firewall-cmd --list-all
  425  firewall-cmd --get-services
  426  firewall-cmd --get-services | grep http
  427  firewall-cmd --add-service http
  428  firewall-cmd --list-all
  429  firewall-cmd --add-service http --permanent
  430  cd /usr/lib/firewalld/services/
  431  ls
  432  vim ftp.xml
  433  cp http.xml /etc/firewalld/services/sander.xml
  434  vim /etc/firewalld/services/sander.xml
  435  systemctl restart firewalld
  436  firewall-cmd --get-services | grep sander
  437  firewall-cmd --add-service sander
  438  firewall-cmd --list-all
  439  firewall-cmd --runtime-to-permanent
  440  firewall-cmd --reload
  441  firewall-cmd --list-all
  442  cd
  443  history