RHCSA day 3 march21

    1  tar -czvf /root/archive.tgz /etc
    2  tar -tvf archive.tgz
    3  cat /etc/dnsmasq.conf
    4  cat /etc/dnsmasq.conf | grep -v ""
    5  cat /etc/dnsmasq.conf | grep -v " "
    6  cat /etc/dnsmasq.conf | grep -v ''
    7  cat /etc/dnsmasq.conf | grep -v '^$'
    8  cat /etc/dnsmasq.conf | grep -v '^$' | sort
    9  cat /etc/dnsmasq.conf | grep -v '^$' | grep -v '^#'
   10  cat /etc/dnsmasq.conf | grep -v '^$' | grep -v '^#' | sort
   11  find / -user $USER
   12  useradd lisa
   13  find / -user lisa
   14  find / -user lisa -exec cp {} /root/userfiles/ \;
   15  mkdir userfiles; find / -user lisa -exec cp {} /root/userfiles/ \;
   16  mkdir userfiles; find / -user lisa -exec cp {} /root/userfiles/ \; 2>/dev/null
   17  mkdir userfiles; find / -user lisa -exec cp {} /root/userfiles/ \; 2> finderr.txt
   18  less finderr.txt
   19  ls
   20  ls /home/student/
   21  /home/student/countdown 12
   22  find / -user student -exec cp {} /root/userfiles/ \; 2>/dev/null
   23  find / -user student
   24  find / -user student -exec ls -l {} \; 2>/dev/null
   25  history
   26  less /etc/passwd
   27  id lisa
   28  id student
   29  vim /etc/login.defs
   30  ls -a /etc/skel/
   31  ls -a /home/lisa
   32  vim /etc/login.defs
   33  groupadd sales
   34  groupadd account
   35  useradd -G sales linda
   36  id linda
   37  id lisa
   38  usermod --help
   39  usermod -aG sales lisa
   40  id lisa
   41  chage lisa
   42  su - linda
   43  tail -5 /etc/shadow
   44  man shadow
   45  man 5 shadow
   46  tail -5 /etc/shadow
   47  passwd linda
   48  tail -5 /etc/shadow
   49  grep linda /etc/passwd
   50  grep linda /etc/shadow
   51  grep linda /etc/group
   52  authconfig
   53  man authselect
   54  grep account /etc/group
   55  useradd -G account anna
   56  useradd -G account anouk
   57  mkdir /data/account
   58  mkdir -p /data/account
   59  mkdir -p /data/sales
   60  cd /data
   61  ls -l
   62  chgrp account account
   63  ls -lk
   64  chgrp sales sales
   65  ls -l
   66  chmod g+w account/
   67  ls -l
   68  chmod g+w,o-rx account/
   69  ls -l
   70  chmod 770 sales/
   71  ls -l
   72  cd /home/linda
   73  touch wortel
   74  ls -l
   75  ls -ld .
   76  su - linda
   77  touch carrot
   78  su - linda
   79  useradd bob
   80  cd /home/sales
   81  cd /data/sales
   82  touch bobfile
   83  ls -l
   84  ls -ld .
   85  su - bob
   86  ln /home/student/countdown /usr/bin/countdown
   87  countdown 12
   88  cd
   89  man chattr
   90  su - linda
   91  ls
   92  chattr +i archive.tgz
   93  rm -f archive.tgz
   94  cd /home/linda
   95  vim runme
   96  chmod +x runme
   97  su - linda
   98  chmod u+s runme
   99  ls -l
  100  su - linda
  101  vim runme
  102  exit
  103  su - linda
  104  find / -perm /4000 2>/dev/null
  105  ls -l /usr/bin/passwd
  106  ls -l /etc/shadow
  107  su - linda
  108  chmod g+s /data/sales
  109  su - linda
  110  su - lisa
  111  chmod +t /data/sales
  112  su - lisa
  113  cd /
  114  ls -l
  115  cd /tmp
  116  ls
  117  cd /data/
  118  ls -ld
  119  ls -l
  120  chown lisa sales
  121  su - lisa
  122  history | grep find
  123  find / -perm /1000 -exec ls -l {} 2>/dev/null
  124  find / -perm /1000 -type d -exec ls -l {} 2>/dev/null
  125  find / -perm /1000 -exec ls -l {} \; 2>/dev/null
  126  find / -perm /1000 -exec ls -ld {} \; 2>/dev/null
  127  ls -l
  128  getfacl sales
  129  ls -ld salesx
  130  ls -ld sales
  131  setfacl -m R g:account:rx /data/sales
  132  setfacl -R -m g:account:rx /data/sales
  133  ls -l sales
  134  man setfacl
  135  setfacl -R -x g:account sales
  136  ls -l
  137  ls -l sales/
  138  setfacl -R -m g:account:rX sales
  139  getfacl sales
  140  getfacl sales/linda2
  141  history
  142  countdown 12
  143  setfacl -m d:g:account:rx sales
  144  getfacl sales/
  145  lsblk
  146  poweroff
  147  lsblk
  148  fdisk /dev/sda
  149  lsblk
  150  mkfs.xfs /dev/sda
  151  mkfs.xfs /dev/sda3
  152  mkdir  /files
  153  vim /etc/fstab
  154  mount -a
  155  mount
  156  lsblk
  157  xxd -l 512 /dev/sda | less
  158  fdisk /dev/sda
  159  reboot
  160  lsblk
  161  mkfs.xfs /dev/sda5
  162  mkfs.ext4 /dev/sda6
  163  mkdir /xfs
  164  mkdir /ext4
  165  vim /etc/fstab
  166  fdisk /dev/sda
  167  reboot
  168  vim /etc/fstab
  169  reboot
  170  history
  171  vim /etc/fstab
  172  reboot
  173  journalctl -xb
  174  mount
  175  mount | grep '^/'
  176  vim /etc/fstab
  177  lslbk
  178  lsblk
  179  blkid
  180  vim /etc/fstab
  181  tune2fs --help
  182  tune2fs -L cow /dev/sda5
  183  tune2fs -l /dev/sda5 | less
  184  blkid
  185  vim /etc/fstab
  186  blkid
  187  blkid | grep sda5 | awk '{ print $3 }'
  188  blkid | grep sda5 | awk '{ print $3 }'  >> /etc/fstab
  189  vim /etc/fstab
  190  exit
  191  mount | grep xfs
  192  xfs_admin --help
  193  xfs_admin -L goat /dev/sda1
  194  umount /dev/sda1
  195  xfs_admin -L goat /dev/sda1
  196  mount -a
  197  tune2fs --help
  198  gdisk /dev/sda
  199  fdisk -l
  200  fdisk -l /dev/sda
  201  cat /proc/partitions
  202  lsblk
  203  mount | grep '^/'
  204  tail -1 /etc/fstab
  205  tail /etc/fstab
  206  cd /dev/disk/by-path/
  207  ls
  208  ls -l
  209  cd
  210  yum repolist
  211  yum install nmap
  212  cd /etc/yum.repos.d/
  213  ls
  214  cat redhat.repo
  215  rm -f *
  216  yum repolist
  217  cd
  218  #dd if=/dev/ser0 of=/rhel8.iso bs=1M
  219  df -h
  220  dd if=/dev/sr0 of=/rhel8.iso bs=1M
  221  yum clean all
  222  ls -l/ /
  223  ls -l /
  224  mkdir /repo
  225  vim /etc/fstab
  226  mount -a
  227  cd /repo
  228  ls
  229  cd
  230  cd /
  231  lsblk
  232  yum repolist
  233  countdown 12
  234  history
  235  cd /etc/yum.repos.d/
  236  vim base.repo
  237  vim appstream.repo
  238  cd /repo
  239  ls
  240  cd AppStream/
  241  ls
  242  cd Packages/
  243  ls
  244  ls | wc
  245  yum repolist
  246  vim /etc/yum.repos.d/appstream.repo
  247  cd
  248  yum search nmap
  249  yum install nmap
  250  yum remove nmap
  251  yum search seinfo
  252  yum provides */seinfo
  253  seinfo
  254  vim /etc/yum.repos.d/base.repo
  255  grep iso /etc/fstab
  256  cat /etc/yum.repos.d/appstream.repo
  257  yum module list
  258  yum module list | less
  259  yum module provides httpd
  260  yum module info postgresql
  261  yum module info postgresql | less
  262  yum module info --profile postgresql
  263  yum module list postgresql
  264  yum module enable postgresql:9.6
  265  yum install httpd
  266  yum module info --profile php
  267  yum module install php:7.2/devel
  268  yum module reset php
  269  yum module install --allowerasing php:7.3
  270  lsblk
  271  ip --help
  272  ip a
  273  ifconfig
  274  man ifconfig
  275  ip a
  276  ip a a dev ens160 10.0.0.10/24
  277  ip a
  278  ifconfig
  279  ifconfig -a
  280  ifconfig /all
  281  man ifconfig
  282  ip 0c a
  283  ip -c a
  284  rpm -qf $(which ifconfig)
  285  rpm -ql net-tools
  286  rpm -ql net-tools | grep bin
  287  yum remove net-tools
  288  ifconfig
  289  ip route show
  290  ip route del default via 192.168.29.1
  291  ping nu.nl
  292  ip route add default via 192.168.29.1
  293  nmap -sn 192.168.29.0/24
  294  vim /etc/resolv.conf
  295  cd /etc/sysconfig/network-scripts/
  296  ls
  297  cat ifcfg-ens160
  298  cd
  299  nmtui
  300  ip a
  301  ping nu.nl
  302  countdown 12
  303  vim /etc/sysconfig/network-scripts/ifcfg-ens160
  304  nmcli connection up ens160
  305  ip a
  306  nmcli connection load ens160
  307  ip a
  308  nmtui
  309  ip
  310  ip a
  311  nmcli connection down ens160
  312  ip a
  313  nmcli connection up ens160
  314  ip a
  315  reboot
  316  mount | grep vdo
  317  vdostats --human-readable
  318  df -h
  319  df -h | grep vdo
  320  systemctl list-units -t mount
  321  systemctl cat vdo1.mount
  322  vim /etc/systemd/system
  323  systemctl daemon-reload
  324  systemctl cat vdo1.mount
  325  countdown 12
  326  yum install httpd curl
  327  systemctl status httpd
  328  systemctl enable httpd
  329  systemctl status httpd
  330  systemctl start httpd
  331  systemctl status httpd
  332  ps aux | grep httpd
  333  ps Zaux | grep httpd
  334  ls -lZ /var/www
  335  ls -lZd /var/tmp
  336  ps Zaux | grep http
  337  vim /etc/sysconfig/selinux
  338  getenforce
  339  setenforce
  340  setenforce permissive
  341  getenforce
  342  setenforce enforcing
  343  vim /etc/httpd/conf/httpd.conf
  344  vim /web/index.html
  345  mkdir /web
  346  echo hello moon > /web/index.html
  347  systemctl restart httpd
  348  curl http://localhost
  349  getenforce
  350  setenforce permissive
  351  curl http://localhost
  352  cd /var/log
  353  ls
  354  cd httpd/
  355  ls
  356  cat error_log
  357  vim /web/index.html
  358  vim /etc/httpd/conf/httpd.conf
  359  systemctl restart httpd
  360  getenforce
  361  curl http://localhost
  362  setenforce enforcing
  363  curl http://localhost
  364  grep AVC /var/log/audit/audit.log
  365  ls -lZ /var/www
  366  man semanage-fcontext
  367  semanage fcontext -a -t httpd_sys_content_t "/web(/.*)?"
  368  ls -ldZ /web
  369  cd /etc/selinux/targeted/contexts/files/
  370  ls
  371  cat file_contexts.local
  372  restorecon -Rv /web
  373  setenforce 1
  374  getenforce
  375  curl http://localhost
  376  cd
  377  countdown 12
  378  man -k selinux
  379  man -k s_elinux
  380  man -k _selinux
  381  yum search selinux
  382  yum install selinux-policy-doc
  383  man -k _selinux
  384  man -k _selinux | wc
  385  man -k _selinux | grep http
  386  man httpd_selinux
  387  grep sealert /var/log/messages
  388  sealert -l 23c9e991-e00f-4c05-9cab-3bc1f7912e58
  389  sealert -l 23c9e991-e00f-4c05-9cab-3bc1f7912e58 | less
  390  vim /etc/httpd/conf/httpd.conf
  391  systemctl restart httpd
  392  systemctl status httpd
  393  getenforce
  394  setenforce permissive
  395  systemctl restart httpd
  396  grep sealert /var/log/messages
  397  sealert -l 6b1004fc-4033-46ba-a1ef-abad895c4057 | less
  398  semanage port -a -t http_port_t -p tcp 82
  399  setenforce enforcing
  400  systemctl restart httpd
  401  systemctl status httpd
  402  getsebool -a | grep ftp
  403  setsebool -P ftpd_anon_write on
  404  getsebool -a | grep ftp
  405  getsebool -a | grep http
  406  grep AVC /var/log/audit/audit.log
  407  grep AVC /var/log/audit/audit.log  | grep -v USER
  408  ssh root@192.168.29.27
  409  showmount -e 192.168.29.27
  410  vim /etc/fstab
  411  mkdir /remotefs
  412  cat /etc/fstab
  413  mkdir /remotedata
  414  mount -a
  415  mount
  416  vim /etc/fstab
  417  yum install -y autofs
  418  vim /etc/auto.master
  419  vim /etc/auto.misc
  420  vim /etc/auto.master
  421  vim /etc/auto.remote
  422  showmount -e 192.168.29.27
  423  vim /etc/auto.remote
  424  systemctl enable --now autofs
  425  cd /
  426  ls
  427  cd remote
  428  ls -a
  429  cd data
  430  ls
  431  mount
  432  showmount -e 192.168.29.27
  433  vim /etc/auto.master
  434  vim /etc/auto.ldap
  435  systemctl restart autofs
  436  cd /home/ldap
  437  ls -a
  438  cd ldapuser5
  439  cd ldapuser1
  440  ip a
  441  countdown 12
  442  cd
  443  vim /usr/lib/firewalld/services/
  444  cp /usr/lib/firewalld/services/ssh.xml /etc/firewalld/services/sander.xml
  445  vim /etc/firewalld/services/sander.xml
  446  firewall-cmd --get-services | grep sander
  447  systemctl restart firewalld
  448  firewall-cmd --get-services | grep sander
  449  systemctl get-default
  450  systemctl list-units
  451  systemctl list-units -t target
  452  systemctl list-unit-files -t target
  453  systemctl isolate emergency.target
  454  systemctl list-units
  455  systemctl restart
  456  reboot
  457  ssh root@192.168.29.27
  458  cd /home
  459  ls
  460  cd ldap
  461  ls -a
  462  cd ldapuser1
  463  vim /etc/auto.master
  464  vim /etc/auto.ldap
  465  journalctl
  466  grep sealert /var/log/messages
  467  mount
  468  vim /etc/auto.ldap
  469  systemctl list-units
  470  systemctl restart
  471  systemctl reboot
  472  history