CNIT 340 Admin/Printing

3 approaches to UNIX printing

BSD style, SysV style, CUPS

BSD style printing

LPD or LPR, supported by many printer eth adapters

not commonly used at all

SysV style printing

used in sold old SysV operations

not common ever

what does CUPS stand for?

common unix printing system

CUPS

becoming standard for Unix printing

available and seen almost everywhere

printing "spooler" function

collects and schedules job

what does "spool" stand for?

simultaneous peripheral operations on line

user level activities for printing

commands or GUI send jobs to spooler

query

a network protocol allows a spooler to communicate and transfer jobs (t/f)

true

CUPS was purchases by who in 2007?

apple

unix is web based and runs off of TCP (t/f)

true

USB printers are supported on what based UNIX systems?

intel

what is the foomatic database?

huge quantity of printer drivers

command to configure CUPS server

/etc/cups/cupds.conf

command to configure CUPS client

/etc/cups/client.conf

CUPS does not have its own commands and used UNIX commands (t/f)

false

what is contained in the /etc/passwd file?

user account info

what is contained in the /etc/shadow file?

encrypted password and expiration informaiton

what does the command 'pwunconv' do?

reverts user info into /etc/passwd

what does the command 'pwconv' do?

configures system to use /etc/shadow

what are three password fields in /etc/shadow file?

min, max and warn

when a password has expired, the user is still allowed to log in to the system for a certain period of time (t/f)

true

where is the number of days for password expiration login stored?

/etc/shadow

what service is associated with the "nobody" user?

NFS

what are two commands to add users?

useradd, adduser

what does the command 'chage' do?

modify password expiration information

what commands lock an account?

usermond -L 'username'

passwd -l 'username'

where are group names stored?

/etc/group

the group membership granted at login time are the union of those found in the passwd and shadow files (t/f)

false! its the union of passwd and group

what are the two ways to manage groups?

/etc/group and groupadd

what file needs to be modified o configure disk quotas?

/etc/fstab

what is the command to remount the system?

mount -o remount

what does PAM stand for?

pluggable authentication modules

PAM is helpful for allowing a variety of method specific ___ for users

authentication

if PAM is tricky, what other file can be used to handle user auth?

authconfig

how do you start CUPS?

sudo systemctl start CUPS

how do you check the status of CUPS?

lpinfo -m

how do you create a new printer?

lpadmin -p

how do you check printer status?

lpstat -a

how do you submit a print request?

lpr