A(n) ________ symbol displays to the left of the paragraph that is associated with the current picture
Fill in the blank(s) with correct word
anchor
Computer Science & Information Technology
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Explain strategic governance.
What will be an ideal response?
Computer Science & Information Technology
Why are user application configuration files saved in the user’s home directory and not under /etc with all the other system-wide configuration files?
Locating Configuration Files a. Use the ls command to list all the files in the analyst home directory:
[analyst@secOps ~]$ ls –l total 20 drwxr-xr-x 2 analyst analyst 4096 Sep 26 2014 Desktop drwx------ 3 analyst analyst 4096 Jul 14 11:28 Downloads drwxr-xr-x 8 analyst analyst 4096 Jul 25 16:27 lab.support.files drwxr-xr-x 2 analyst analyst 4096 Mar 3 15:56 second_drive -rw-r--r-- 1 analyst analyst 254 Aug 16 13:32 space.txtWhile a few files are displayed, none of them seem to be configuration files. This is because it is convention to hide home-directory-hosted configuration files by preceding their names with a “.” (dot) character. b. Use the ls command again but this time add the –a option to also include hidden files in the output:
[analyst@secOps ~]$ ls –la total 268 drwxr-xr-x 19 analyst analyst 4096 Aug 2 15:43 . drwxr-xr-x 3 root root 4096 Sep 26 2014 .. -rw------- 1 analyst analyst 250 May 4 11:42 .atftp_history -rw------- 1 analyst analyst 13191 Aug 1 09:48 .bash_history -rw-r--r-- 1 analyst analyst 97 Mar 21 15:31 .bashrc drwxr-xr-x 4 analyst analyst 4096 Jul 6 10:26 broken_down drwxr-xr-x 10 analyst analyst 4096 Nov 7 2016 .cache drwxr-xr-x 12 analyst analyst 4096 Jun 5 11:45 .config -rw-r--r-- 1 analyst analyst 16384 Apr 12 10:06 .cyberops_topo.py.swp drwxr-xr-x 2 analyst analyst 4096 Sep 26 2014 Desktop -rw-r--r-- 1 analyst analyst 43 Sep 27 2014 .dmrc drwx------ 3 analyst analyst 4096 Jul 14 11:28 Downloads -rw-r--r-- 1 analyst analyst 72 Sep 26 2014 .fehbg drwxr-xr-x 5 analyst analyst 4096 Sep 26 2014 .fluxbox drwx------ 3 analyst analyst 4096 Sep 7 2016 .gnupg -rw------- 1 analyst analyst 28920 Aug 2 15:01 .ICEauthority drwxr-xr-x 2 analyst analyst 4096 Sep 26 2014 .idlerc drwxr-xr-x 3 analyst analyst 4096 Sep 27 2014 .java drwxr-xr-x 8 analyst analyst 4096 Jul 25 16:27 lab.support.files -rw------- 1 analyst analyst 290 Jul 6 15:15 .lesshst drwxr-xr-x 3 analyst analyst 4096 Sep 26 2014 .localc. Use the cat command to display the contents of the .bashrc file. This file is used to configure user-specific terminal behavior and customization.
[analyst@secOps ~]$ cat .bashrc export EDITOR=vim PS1='\[\e[1;32m\][\u@\h \W]\$\[\e[0m\] ' alias ls="ls --color" alias vi="vim"Do not worry too much about the syntax of .bashrc at this point. The important thing to notice is that .bashrc contains configuration for the terminal. For example, the line PS1='\[\e[1;32m\][\u@\h \W]\$\[\e[0m\] ' defines the prompt structure of the prompt displayed by the terminal: [username@hostname current_dir] followed by a dollar sign, all in green. A few other configurations include shortcuts to commands such as ls and vi. In this case, every time the user types ls, the shell automatically converts that to ls –color to display a color-coded output for ls (directories in blue, regular files in grey, executable files in green, etc.) The specific syntax is out of the scope of this course. What is important is understanding that user configurations are conventionally stored as hidden files in the user’s home directory. d. While configuration files related to user applications are conventionally placed under the user’s home directory, configuration files relating to system-wide services are placed in the /etc directory, by convention. Web services, print services, ftp services, email services are examples of services that affect the entire system and of which configuration files are stored under /etc. Notice that regular users do not have writing access to /etc. This is important as it restricts the ability to change the system-wide service configuration to the root user only. Use the ls command to list the contents of the /etc directory:
[analyst@secOps ~]$ ls /etc adjtime host.conf mke2fs.conf rc_maps.cfg apache-ant hostname mkinitcpio.conf request-key.conf apparmor.d hosts mkinitcpio.d request-key.d arch-release ifplugd modprobe.d resolv.conf avahi initcpio modules-load.d resolvconf.conf bash.bash_logout inputrc motd rpc bash.bashrc iproute2 mtab rsyslog.conf binfmt.d iptables nanorc securetty ca-certificates issue netconfig security crypttab java-7-openjdk netctl services dbus-1 java-8-openjdk netsniff-ng shadow- default kernel nginx shadowdepmod. depmod.d krb5.conf nscd.conf shells dhcpcd.conf ld.so.cache nsswitch.conf skel dhcpcd.duid ld.so.conf ntp.conf ssh dkms ld.so.conf.d openldap ssl drirc libnl openvswitch sudoers elasticsearch libpaper.d os-release sudoers.d environment lightdm pacman.conf sudoers.pacnew ethertypes locale.conf pacman.conf.pacnew sysctl.d filebeat locale.gen pacman.d systemd fonts locale.gen.pacnew pam.d tmpfiles.d fstab localtime pango trusted-key.key gai.conf login.defs papersize udev gemrc logrotate.conf passwd UPower group logrotate.d passwd- vdpau_wrapper.cfg group- logstash pcmcia vimrc group.pacnew lvm pkcs11 webapps grub.d machine-id polkit-1 wgetrc gshadow mail.rc profile X11 gshadow- makepkg.conf profile.d xdg gshadow.pacnew man_db.conf protocols xinetd.d gtk-2.0 mdadm.conf pulse yaourtrc gtk-3.0 mime.types rc_keymapse. Use the cat command to display the contents of the bash_bashrc file:
[analyst@secOps ~]$ cat /etc/bash.bashrc
#
# /etc/bash.bashrc
#
# If not running interactively, don't do anything
[[ $- != *i* ]] && return
PS1='[\u@\h \W]\$ '
case ${TERM} in
xterm*|rxvt*|Eterm|aterm|kterm|gnome*)
PROMPT_COMMAND=${PROMPT_COMMAND:+$PROMPT_COMMAND; }'printf
"\033]0;%s@%s:%s\007" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/\~}"'
;;
screen)
PROMPT_COMMAND=${PROMPT_COMMAND:+$PROMPT_COMMAND; }'printf
"\033_%s@%s:%s\033\\" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/\~}"'
;;
esac
[ -r /usr/share/bash-completion/bash_completion ] && . /usr/share/bash-completion/
bash_completion
[analyst@secOps ~]$
The syntax of bash_bashrc is out of scope of this course. This file defines the default behavior of the shell for all users. If a user wants to customize his/her own shell behavior, the default behavior can be overridden by editing the .bashrc file located in the user’s home directory. Because this is a system-wide configuration, the configuration file is placed under /etc, making it editable only by the root user. Therefore, the user will have to log in as root to modify .bashrc.
Computer Science & Information Technology
Slide ________, a feedback feature in PowerPoint Online, allow multiple users to discuss the presentation with direct connection to the slide content
A) themes B) comments C) reviews D) notes
Computer Science & Information Technology
What type of variable is visible in multiple methods throughout the program?
A. scope variable B. class variable C. local variable D. universal variable
Computer Science & Information Technology