ALM-vol2

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Copyright 2003 Vegaslocal.com Publishing. All rights reserved. Printed in the UnitedStates of America, published by vegaslocal.com all other trademarks are properties oftheir respective owners.

While every precaution has been taken in the preparation of this book, the publisher and theauthor assume no responsibility for errors or omissions.

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Agustns Linux Manual

System Administration

Volume 2ISBN: 0-9752804-1-4

Published by:Vegaslocal.com

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About the author

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Content

Chapter 3Administration 6Welcome to system administration 6Terminals 7Xterms 7

Shells 7Command aliases 7Command basics 8The root directory 9Executing commands as root 10File specs 11File permission chmod 12User IDS and Groups 13How permissions are assigned? 13Change ownership chown 14How can you change the group? 15Running multiple commands 15Multiple virtual terminals 15

Killing processes 16Bash configuration files 17Changing the prompt 17Setting number to vi editor 18Creating path environment 19Writing and executing shell script 19The midnight commander 21Copying file with mc 22Mcs F commands 22File permission with mc 23Searching files with mc 23The Linuxconf utility 24Networking with linuxconf 25DNS client workstation 27Router and gateway 28Adding users from Linuxconf 29Enabling user accounts 30Disabling user accounts 30Parameters for user accounts 30Privileges for user accounts 31Account policies 31Managing groups 31Changing the root password 33Mounting file system 33Reviewing your current file system 34NFS Mounts 34Adding NFS Mounts 35

Implementing disk quotas 36Effect of quotas on users 37Miscellaneous services 37The linuxconf control 38Controlling services 39Linuxconf module management 40

Chapter 4Mandrake control center 41

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Creating a boot disk 41Boot configuration 42Switching the boot mode text/graphical 43Creating a pre-installation disk 44Video resolution 44The graphical server configuration 45Printer configuration 45Installing printers in expert mode 47Samba windows printer 49Installing scanners 49Managing services 50Managing users 51Backups 52Software management 53Installing packages using command line 54Installing cups using the packager manager 55Uninstalling software 57Accessing cups 57

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Chapter 3

Administration # % 2 %#

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The root Directory[agustin@server2 agustin]$ ls /

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[root@server2 agustin]#

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Executing commands as root##7%#

[root@server2 agustin]# cd /home/user1

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[root@server2 user1]#cd collections

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[root@server2 collections]#echo paste this information to a file > myfile

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[root@server2 collections]# mkdir onother

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[root@server2 collections]#cp myfile original.myfile


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SyntaxChmod [permissions] filenames

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8 9U User who owns the file 400 Read by ownerg group that owns the file 040 Read by group

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o Other 004 Read by othersa All 200 Write by ownerr Readable file 020 Write by group

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root@server2 collections]#chown user1.user1 afile

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[root@server2 Agustin]# kill 2644 (This command would kill linuxconf, fig

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21 ;;

22 esac

23 # [ "$PS1" = "\\s-\\v\\\$ " ] && PS1="[\u@\h \W]\\$ "

24

25 [ "$PS1" = "\\s-\\v\\\$ " ] && PS1="\[\e[1;32m\] \w\\$\[\e[1;37m\]"

26

27 if [ -z "$loginsh" ]; then # We're not a login shell

28 for i in /etc/profile.d/*.sh; do

29 if [ -x $i ]; then30 . $i

31 fi

32 done

33 fi

34 fi

35

36 unset loginsh

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Creating path environmentD#$$%.#7#%

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#! /bin/bash

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Chapter 4

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Date and time

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Documents

ALM-vol2