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99 Cards in this Set
- Front
- Back
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contains all the configuration files
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/etc
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sh
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bourne
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bash
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bourne again
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ksh
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korn
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csh
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c shell
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clear the scrn
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clear
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where users folders reside
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/export/home/
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user and acct info
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/etc/passwd
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password encryption and password aging
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/etc/shadow
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internet daemon setup file
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/etc/inetd.conf
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optional packages and 3rd party software
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/opt
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contains processes used by the system
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/proc
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temporary files
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/tmp
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programs used to boot the system
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/sbin
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paths that begin with root /
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absolute pathnames
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paths that begin with the working directory
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relative pathnames
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main security weakness of unix
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root user
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anatomy of a unix command
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command option/switch arguement
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displays the manual
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man
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create a directory
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mkdir
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remove an empty directory
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rmdir
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display the contents of a file one line at a time
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more
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display the file on the screen
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cat
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display the last few lines of a file
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tail
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display the first few lines of a file
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head
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list the contents of a dir
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ls
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present working directory
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pwd
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change working directory
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cd
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move or rename a file
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mv
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copy a file
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cp
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searches for strings inside files
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grep
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change passwords
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passwd
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change permissions of a file or dir
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chmod
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change user
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su
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add a user via command line
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useradd
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display the status of all active processes
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ps
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stop a process
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kill
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respawn a killed process or to effect conf changes
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-HUP
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used to archive files
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tar
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compress a file
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gzip
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uncompress a file
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gunzip
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set characteristics of the net interface
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ifconfig
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view network status/acty
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netstat
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display info on system users
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finger
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send packets to another device
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ping
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shows path for executing commands
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which
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clear the screen
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clear
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display date
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date
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displays whos logged in
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who
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displays who you are logged in as
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whoami
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create a file with nothing in it
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touch
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reports the amount of free space
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df
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most often used method of initiating a system shutdown
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shutdown
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run level 0
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terminates operating system where its safe to pwr down
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single user/admin state
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run level 1
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run level 2
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multi user state, all facilities except NFS are available
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run level 3
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multi user state including NFS
default state for solaris 9 |
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run level 4
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user defined state - never used
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run level 5
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used to bring sys safe to pwr down
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run level 6
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stop and reboot state
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how to start a run level state
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init
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name 2 states of vi
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command or input
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3 vi deletion commands
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x delete current char
D delete to end of line dd delete current line |
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3 vi insertion commands
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i insert before cursor
I insert at beginning of line o insert below current line |
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display line numbers in vi
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:set nu
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save in vi
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:w
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quit without save in vi
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:q!
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save and quit vi
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:wq
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3 classes of permissions
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owner
group other |
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types of file indicators in a permission list
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- ordinary file
d directory b special block file c special character file l link |
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name the permission groups of a permission list
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2-4 owner
5-7 group 8-10 other |
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what does x allow for a directory
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allows a user to cd into the dir
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what are the octal codes for rwx
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r - 4
w - 2 x - 1 |
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show the current run level
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who -r
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etc/passwd field 1
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login name
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etc/passwd field 2
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x - placeholder for passwd
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etc/passwd field 3
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UID
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etc/passwd field 4
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GID
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etc/passwd field 5
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users meta info, like full name, phone number
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etc/passwd field 6
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path to the users home dir
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etc/passwd field 7
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user's default login shell
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etc/shadow field 1
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user name
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etc/shadow field 2
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encrypted passwd, LK stands for locked
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etc/shadow filed 3
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last password change date
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etc/shadow field 4
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min num of days between pswd changes
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etc/shadow field 5
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max num of days user has to change pswd before its locked
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etc/shadow field 6
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nu of days of not changing default pswd before acct lock
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etc/shadow field 7
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n. of days inactivity before acct lock
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etc/shadow field 8
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n. of days the login my no longer be used
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who can read etc/shadow?
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only root
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command for gui for user accounts
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admintool
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2 types of backup
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full and incremental
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dump levels
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0 - full
1-9 altered files |
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where are run level scripts contained?>
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/etc/rc2.d
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integrated solaris to enhance security
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aset
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default umask
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022
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aset level that makes recommendations but no changes
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low
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aset level that may make some changes
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med
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aset level that may stop services
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high
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