examlabs oct23

@localhost system]# history
    1  ssh sander@192.168.52.167
    2  ssh sander@192.168.52.136
    3  vim countdown
    4  cat countdown
    5  chmod +x countdown
    6  ./countdown 1
    7  ./countdown 10
    8  find / -type f -links +1 2> /dev/null
    9  man find
   10  cp /etc/hosts .
   11  ln hosts myhosts
   12  ls -il *
   13  find . -type f -links +1 2> /dev/null
   14  find . -type f -exec ls -i {} \;
   15  find . -type f -exec ls -i {} \; awk '{ print $1 }'
   16  find . -type f -exec ls -i {} \;| awk '{ print $1 }'
   17  find . -type f -exec ls -i {} \;| awk '{ print $1 }' | sort
   18  find . -type f -exec ls -i {} \;| awk '{ print $1 }' | sort | uniq -d
   19  man uniq
   20  find . -type f -exec ls -i {} \;| awk '{ print $1 }' | sort | uniq -d | wc -l
   21  find / -type f -exec ls -i {} \;| awk '{ print $1 }' | sort | uniq -d | wc -l
   22  find / -type f -links +1 -exec ls -i {} \;| awk '{ print $1 }' | sort | uniq -d | wc -l
   23  history
   24  find / -type f -links +1 -exec ls -i {} \; 2>/dev/null | awk '{ print $1 }' | sort | uniq -d | wc -l
   25  find . -type f -links
   26  find . -type f -links +1
   27  find . -type f -links 1
   28  ./countdown 12
   29  ./countdown 10
   30  groupadd support
   31  useradd -G support linda
   32  useradd -G support lori
   33  useradd -G support anna
   34  id anna
   35  visudo
   36  for i in anna lori linda; do echo password | passwd --stdin $i; done
   37  su - lori
   38  which login
   39  ldd $(which login)
   40  man -k pam
   41  mandb
   42  man -k pam
   43  cd /etc/pam.d/
   44  ls
   45  vim passwd
   46  vim system-auth
   47  man pam_pwquality
   48  vim /etc/security/pwquality.conf
   49  useradd bob
   50  passwd bob
   51  cd
   52  ./countdown 12
   53  exit
   54  df -h
   55  dd if=/dev/zero of=/diskfile bs=1M count=1024
   56  losetup -fP /diskfile
   57  losetup -a
   58  fdisk /dev/loop0
   59  mount | grep files
   60  exit
   61  history
   62  lsblk
   63  gdisk /dev/sdb
   64  mkfs.ext3 /dev/sdb1
   65  man tune2fs
   66  man mount
   67  man -k mount
   68  tunefs -o journal_data /dev/sdb1
   69  tune2fs -o journal_data /dev/sdb1
   70  tune2fs -l /dev/sdb1 | less
   71  mkdir /files
   72  blkid
   73  vim /etc/fstab
   74  mount -a
   75  systemctl daemon-reload
   76  mount -a
   77  mount
   78  history
   79  gdisk /dev/sdb
   80  pvcreate /dev/sdb2
   81  vgcreate vgfiles /dev/sdb2
   82  vgs
   83  lvcreate -n lvjason -l 100%FREE vgdata
   84  vts
   85  vgs
   86  lvcreate -n lvjason -l 100%FREE vgfiles
   87  vgs
   88  mkfs.ext4 /dev/vgdata/lvjason
   89  mkfs.ext4 /dev/vgfiles/lvjason
   90  vim /etc/fstab
   91  mount -a
   92  mkdir /lvfiles
   93  mount -a
   94  mount
   95  ls -l /dev/vgfiles/lvjason /dev/mapper/vgfiles-lvjason
   96  reboot
   97  exit
   98  cd examlabs/
   99  ls
  100  cd fingerd/
  101  ls
  102  less README.md
  103  cat autogen.sh
  104  ./autogen.sh
  105  ls
  106  ./configure
  107  ls
  108  make
  109  ls
  110  make install
  111  cd
  112  history
  113  exit
  114  lsblk
  115  df -h
  116  vgs
  117  vgextend vgfiles /dev/sdb3
  118  vgs
  119  lvextend --help | less
  120  lvextend -l +100%FREE -r /dev/vgfiles/lvjason
  121  df -h
  122  history
  123  mkdir -p /data/support
  124  chgrp support /data/support
  125  chmod g+w /data/support
  126  ls -l /data/support/
  127  ls -ld /data/support/
  128  chown lori /data/support
  129  chmod 070 /data/support
  130  id lori
  131  su - lori
  132  chmod 770 /data/support
  133  chown root /data/support
  134  ls -ld /data/support
  135  setfacl -m d:u:lori:wX /data/support
  136  su - lori
  137  history
  138  su - linda
  139  ls -lrt /tmp
  140  journactl
  141  journalctl
  142  su -
  143  su - linda
  144  journalctl -G
  145  journalctl -F
  146  journalctl -f
  147  ls -lrt /tmp
  148  history
  149  ssh sander@192.168.52.136
  150  history
  151  cat /proc/cmdline
  152  systemctl list-dependencies
  153  systemctl cat systemd-remount-fs.service
  154  systemctl cat ostree-remount.service
  155  systemctl list-dependencies
  156  ./countdown 8
  157  man sshd_config
  158  vim /etc/ssh/sshd_config
  159  cat /etc/passwd
  160  useradd lisa
  161  passwd lisa
  162  systemctl restart sshd
  163  ssh lisa@localhost
  164  ssh bob@localhost
  165  ssh linda@localhost
  166  man sshd_config
  167  vim /etc/ssh/sshd_config
  168  systemctl restart sshd
  169  su - anna
  170  vim /etc/ssh/sshd_config
  171  history
  172  iptables -t nat -A PREROUTING -p tcp --dport 81 -j REDIRECT --to-port 9080
  173  firewall-cmd --help
  174  firewall-cmd --help | grep forward
  175  firewall-cmd --add-forward-port=80:proto=tcp:toport=9080 --permanent
  176  firewall-cmd --add-forward-port=port=80:proto=tcp:toport=9080 --permanent
  177  firewall-cmd --add-forward-port=port=80:proto=tcp:toport=9080
  178  man -k firewalld
  179  history
  180  dnf install -y vsftpd
  181  vim /etc/vsftpd/vsftpd.conf
  182  dnf install -y lftp
  183  lftp localhost
  184  systemctl enable --now vsftpd
  185  lftp localhost
  186  getenforce
  187  setenforce permissive
  188  lftp localhost
  189  grep ftp /etc/passwd
  190  cd /var/ftp
  191  ls -l
  192  chmod 777 pub
  193  lftp localhost
  194  rm pub/hosts
  195  setenforce enforcing
  196  lftp localhost
  197  journalctl | grep sealert
  198  sealert -l 757f8114-688f-4b93-ac3d-3e3aa373b064| less
  199  dnf install -y httpd
  200  systemctl start httpd
  201  ps Zaux | grep httpd
  202  ls -Z /var/www
  203  ls -Z
  204  sealert -l 757f8114-688f-4b93-ac3d-3e3aa373b064| less
  205  # semanage fcontext -a -t public_content_rw_t pub
  206  # restorecon -R -v pub
  207  semenage fcontext -a -t public_content_rw_t /var/ftp/pub(/.*)?
  208  semenage fcontext -a -t public_content_rw_t "/var/ftp/pub(/.*)?"
  209  semanage fcontext -a -t public_content_rw_t "/var/ftp/pub(/.*)?"
  210  restorecon -Rv /var/ftp/pub
  211  getsebool -a | grep ftp
  212  sealert -l 757f8114-688f-4b93-ac3d-3e3aa373b064| less
  213  setsebool -P allow_ftpd_anon_write 1
  214  getsebool -a | grep ftp
  215  lftp localhost
  216  getenforce
  217  history
  218  vim /etc/vsftpd/vsftpd.conf
  219  cat /etc/passwd
  220  man -k ulimit
  221  ulimit --help
  222  man bash
  223  vim /etc/security/limits.conf
  224  su - lisa
  225  vim /etc/security/limits.conf
  226  su - lisa
  227  systemctl show sshd.service
  228  systemctl edit sshd.service
  229  systemctl cat sshd.service
  230  systemctl restart sshd
  231  systemctl status sshd
  232  history
  233  cd
  234  git clone https://github.com/sandervanvugt/examlabs
  235  cd examlabs/
  236  ls
  237  cd
  238  dd if=/dev/zero of=/big.log bs=1M count=10
  239  df -h
  240  find / -name "*log" -size +5M
  241  find / -name "*log" -size +5M -exec rm -f {} \;
  242  find / -name "*log" -size +5M
  243  history
  244  systemctl status tuned
  245  tuned-adm --help
  246  tuned-adm recommend
  247  tuned-adm virtual-guest
  248  tuned-adm profile virtual-guest
  249  tuned-adm active
  250  systemctl cat tuned
  251  history
  252  dnf groups install "C Development Tools and Libraries"
  253  dnf groups list
  254  dnf groups install "C Development Tools"
  255  dnf groups install "Development Tools"
  256  exit
  257  history
  258  cd examlabs/
  259  ls
  260  cd docker/
  261  cat Dockerfile
  262  podman build -t examlab .
  263  podman images
  264  setenforce 0
  265  #podman run -dt --name examlab -v /tmp:/tmp localhost/examlab
  266  man podman-run
  267  podman run -m=128M --name examlab -v /tmp:/tmp localhost/examlab
  268  vim Dockerfile
  269  podman build -t examlab .
  270  podman run -m=128M --name examlab -v /tmp:/tmp localhost/examlab
  271  podman rm examlab
  272  podman run -m=128M --name examlab -v /tmp:/tmp localhost/examlab
  273  podman ps
  274  podman ps -a
  275  ls -lrt /tmp
  276  vim Dockerfile
  277  ls -lrt /tmp
  278  history
  279  cd ..
  280  ls
  281  history
  282  ls
  283  openssl x509 -in tls.crt -noout -subject
  284  openssl x509 -in tls.crt -noout -text
  285  cd /etc/pki/tls/certs
  286  ls
  287  cd
  288  history
  289  cd /usr/lib/systemd/system
  290  vim sshd.service
  291  cp sshd.service /etc/systemd/system/sleep.service
  292  cd /etc/systemd/system/
  293  vim sleep.service
  294  systemctl daemon-reload
  295  systemctl enable --now sleep.service
  296  ps aux | grep sleep
  297  systemctl status sleep.service
  298  kill -9 49463
  299  systemctl status sleep.service
  300  history