RHCSA-jul20-day2

[root@localhost ~]# history
    1  vimtutor
    2  vim countdown
    3  countdown 12
    4  echo $PATH
    5  ./countdown 12
    6  ls -l countdown
    7  chmod +x countdown
    8  ./countdown 12
    9  exit
   10  visudo
   11  id student
   12  usermod -aG wheel student
   13  id student
   14  exit
   15  visudo
   16  useradd linda
   17  passwd linda
   18  su - linda
   19  visudo
   20  su - linda
   21  visudo
   22  vim /etc/sudoers.d/linda
   23  history
   24  systemctl isolate multi-user.target
   25  systemctl start graphical.target
   26  history
   27  exit
   28  ip a
   29  systemctl status sshd
   30  firewall-cmd --list-all
   31  ./countdown 13
   32  ./countdown
   33  countdown
   34  echo $PATH
   35  cp countdown /usr/local/bin
   36  cd /
   37  ls -l
   38  man hier
   39  cd /etc
   40  ls
   41  cd
   42  vim countdown
   43  countdown 0
   44  ln /etc/hosts myhosts
   45  ls -il /etc/hosts myhosts
   46  echo 10.0.0.10 dummy >> myhosts
   47  ls -il /etc/hosts myhosts
   48  ln -s myhosts symhosts
   49  ls -il /etc/hosts myhosts symhosts
   50  cat symhosts myhosts /etc/hosts
   51  rm myhosts
   52  ls -il /etc/hosts myhosts symhosts
   53  cat symhosts
   54  ln /etc/hosts myhosts
   55  rm /etc/hosts
   56  cat myhosts
   57  ln myhosts /etc/hosts
   58  ln /boot/vmlinuz-4.18.0-193.el8.x86_64 kernel
   59  ln -s /boot/vmlinuz-4.18.0-193.el8.x86_64 kernel
   60  ln /etc myetc
   61  ln -s /etc myetc
   62  lsblk
   63  umount /dev/sdb1
   64  ls /mnt
   65  mount /dev/sdb1 /mnt
   66  ls /mnt
   67  cd /mnt
   68  ls
   69  umount /dev/sdb1
   70  lsof /mnt
   71  cd
   72  umount /dev/sdb1
   73  cd /boot
   74  ls
   75  cd
   76  ls
   77  rm myhosts
   78  find / -xtype l
   79  ls -l
   80  find / -xtype l | grep host
   81  find -P ./ -xtype l
   82  find / -xtype l -exec ls -l {} \;
   83  find / -xtype l -exec ls -l {} \; 2>/dev/null
   84  find / -name "hosts"
   85  find / -name "*hosts*"
   86  find / -size +100M > bigfiles.txt
   87  less bigfiles.txt
   88  find / -user linda
   89  ls -l /run/user/1000/
   90  ls -il /run/user/1000/
   91  ls -il /run/user/1000/gvfs
   92  echo $?
   93  history
   94  alias twaalf='countdown 12'
   95  twaalf
   96  man password
   97  man -k password
   98  man man
   99  man apropos
  100  mandb
  101  man -k password
  102  man -k password | wc
  103  man -k password | grep 1
  104  man passwd
  105  man -k authentication
  106  man -k user
  107  less /etc/passwd
  108  less /etc/shadow
  109  man passwd
  110  man 5 passwd
  111  man pwconv
  112  ls -l /etc/passwd
  113  ls -l /etc/shadow
  114  cat /etc/shadow
  115  id student
  116  grep student /etc/group
  117  grep student /etc/passwd
  118  id student
  119  vim /etc/login.defs
  120  useradd lisa
  121  passwd -l lisa
  122  passwd -u lisa
  123  passwd -L lisa
  124  chage lisa
  125  chage -L lisa
  126  chage -l lisa
  127  groups --help
  128  groups student
  129  history
  130  chage lisa
  131  chage --help
  132  groupadd account
  133  groupadd sales
  134  useradd -G account anna
  135  useradd -G account anouk
  136  id anna
  137  w
  138  id linda
  139  id lisa
  140  usermod -aG sales lisa
  141  usermod -aG sales linda
  142  id lisa
  143  usermod -G wheel lisa
  144  id lisa
  145  usermod -aG sales lisa
  146  usermod --help | less
  147  ls -l $(which useradd) $(which adduser)
  148  ls -l /etc/skel
  149  ls -al /etc/skel
  150  touch /etc/skel/blah
  151  useradd bill
  152  ls -la /home/bill
  153  history
  154  cd /home
  155  ls -l
  156  cd /etc
  157  ls -l
  158  cd
  159  tail -2 /etc/group
  160  tail -8 /etc/group
  161  mkdir /data/sales
  162  mkdir -p /data/sales
  163  mkdir -p /data/account
  164  cd /data
  165  ls -l
  166  id
  167  chown linda.sales sales
  168  ls -l
  169  chgrp account account
  170  ls -l
  171  chmod 770 *
  172  ls -l
  173  history
  174  mkdir linda
  175  chown linda linda
  176  chmod 100 linda
  177  ls -l
  178  cd linda
  179  touch a b c d e
  180  ls -l
  181  su - linda
  182  pwd
  183  chmod u+w .
  184  ls -ld .
  185  pwd
  186  su - linda
  187  pwd
  188  chmod 400 .
  189  ls -ld .
  190  su - linda
  191  history
  192  pwd
  193  cd /home/linda
  194  touch rootfile
  195  ls -l
  196  su - linda
  197  pwd
  198  touch r2
  199  su - linda
  200  ls -l
  201  cd
  202  ls -l
  203  ln /etc/hosts myhosts
  204  ls -l /etc/hosts myhosts symhosts
  205  passwd linda
  206  ls -l /home/linda
  207  ls -ld /home/linda
  208  pwd
  209  cd /home/linda
  210  echo wortel > rootfile3
  211  su - linda
  212  pwd
  213  cd ..
  214  ls -l
  215  userdel bill
  216  ls -l
  217  useradd jim -u 1006 -g 1008
  218  ls -l
  219  useradd jim -u 1006
  220  ls -l
  221  cd
  222  find / -user "jim" -exec mv {} /root/ \;
  223  ls
  224  userdel --help
  225  userdel -r jim
  226  cd /home/linda
  227  vim playme
  228  chmod +x playme
  229  su - linda
  230  vim playme
  231  chmod u+s playme
  232  ls -l
  233  find / -perm /4000 2>/dev/null
  234  ls -l /usr/bin/passwd
  235  ls -l /etc/shadow
  236  cd /data
  237  ls -l
  238  su - anna
  239  chmod g+s account/
  240  ls -l
  241  su - anna
  242  ls
  243  ls -l
  244  su anouk
  245  su - anouk
  246  chmod +t *
  247  ls -l
  248  su - anouk
  249  su - lisa
  250  su - linda
  251  su - anouk
  252  history
  253  countdown 13
  254  ls -l
  255  cd sales
  256  ls
  257  su - linda
  258  chmod g+s sales
  259  chmod g+s .
  260  pwd
  261  ls -ld .
  262  su - linda
  263  cd ..
  264  getfacl sales
  265  setfacl -m -R g:account:rx sales
  266  setfacl -R -m g:account:rx sales
  267  getfacl sales
  268  ls -l sales
  269  man setfacl
  270  setfacl -x g:account sales
  271  getfacl sales
  272  setfacl -R -m g:account:rX sales
  273  ls -l sales/
  274  setfacl -x g:account sales
  275  ls -l sales/
  276  setfacl -R -x g:account sales
  277  ls -l sales/
  278  setfacl -R -m g:account:rX sales
  279  ls -l sales/
  280  getfacl sales
  281  cd sales
  282  getfacl a
  283  history
  284  su - linda
  285  setfacl -m d:g:account:rx sales
  286  setfacl -m d:g:account:rx .
  287  su - linda
  288  cd
  289  yum repolist
  290  cd /etc/yum.repos.d/
  291  ls
  292  rm -f *
  293  yum repolist
  294  cd /
  295  df -h
  296  dd if=/dev/sr0 of=/centos82.iso bs=1M &
  297  mkdir /repo
  298  vim /etc/fstab
  299  ls /repo
  300  mount -a
  301  ls /repo
  302  mount | grep repo
  303  cd repo
  304  ls
  305  cd BaseOS/
  306  ls
  307  cd Packages/
  308  ls
  309  cd ..
  310  cd repodata/
  311  ls
  312  cd ../../AppStream/
  313  ls
  314  cd
  315  yum repolist
  316  cd /etc/yum.repos.d/
  317  vim BaseOS.repo
  318  yum repolist
  319  vim AppStream.repo
  320  yum repolist
  321  vim classroom.repo
  322  yum repolist
  323  cat classroom.repo
  324  vim classroom.repo
  325  yum repolist
  326  cd
  327  mount
  328  mount | grep '^/'
  329  history
  330  history | grep dd
  331  countdown 12
  332  which yum
  333  ls -l /usr/bin/yum
  334  yum search nmap
  335  yum install nmap-ncat
  336  yum install nmap
  337  yum search seinfo
  338  yum provides */seinfo
  339  yum install setools-console
  340  yum module list
  341  yum module provides httpd
  342  yum module provides python
  343  yum module provides python36
  344  yum module provides nginx
  345  yum module info nginx
  346  yum module info postgresql
  347  yum module info nginx
  348  yum module install nginx:1.16
  349  ip a
  350  ip addr show
  351  ip addr add dev ens33 10.0.0.10/24
  352  ip a
  353  ping 10.0.0.10
  354  ifconfig
  355  ifconfig -a
  356  man ifconfig
  357  ip -s link
  358  which ifconfig
  359  rpm -qf $(which ifconfig)
  360  rpm -ql net-tools | grep bin
  361  yum remove net-tools
  362  ip route show
  363  ping nu.nl
  364  ip route del default via 192.168.4.2
  365  ping nu.nl
  366  ip route show
  367  ip route add default via 192.168.4.2
  368  ping nu.nl
  369  cat /etc/resolv.conf
  370  which dig
  371  rpm -qf /usr/bin/dig
  372  systemctl status NetworkManager
  373  nmtui
  374  ip a
  375  vim /etc/sysconfig/network-scripts/ifcfg-ens33
  376  nmtui
  377  ip a
  378  yum install bash-completion
  379  nmcli connection show
  380  nmcli connection show ens33
  381  nmcli connection modify ens33 ipv4.addresses 192.168.4.190/24
  382  cat /etc/sysconfig/network-scripts/ifcfg-ens33
  383  ip a
  384  nmcli connection up ens33
  385  ip a
  386  history
  387  ip a
  388  ip route show
  389  cat /etc/resolv.conf
  390  ping nu.nl
  391  countdown 12
  392  poweroff
  393  history