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NAD710 Lab 4 Answers

3,861 bytes added, 23:38, 16 July 2012
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'''3. Which file stores the static hostname to IP address mapping ?'''
/etc/sysconfig/networking/profiles/default/hosts
How about: Static mappings of hostnames to IP addresses are stored in the file '/etc/hosts'.
'''4. Which file stores the DNS servers IP addresses ?'''
/etc/sysconfig/networking/profiles/default/resolv.conf I think DNS server IP addresses are stored in the file is: '/etc/resolv.conf'.
'''5. What information is stored in /etc/sysconfig/network file ?'''
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CHALLENGEROption #1: There is no need to use tar or xargs to accomplish this task. It can be performed in it's entirety by the 'find' command. Assuming you have used a command like shown in the answer for question #8 to find all files in /etc/ modified by a particular GUI change, you could modify the command to copy all the located files to your current directory using the following form:  find /etc/ -type f -cnewer ~/stamp --exec cp {} . \; ''- Katherine Masseau''
* /proc/net/ip_tables_targets
* ''Milton Paiva''
 
''' b. system-config-printer'''
* list of files here/etc/cups* your name here/etc/cups/ppd* /etc/cups/ppd/Printing_Protocol.ppd* /etc/cups/printers.conf.O* /etc/cups/classes.conf* /etc/cups/printers.conf* /etc/printcap* /dev/par0* /dev/.udev* /dev/.udev/names* /dev/.udev/names/lp0* /dev/.udev/names/lp0/\x2fclass\x2fprinter\x2flp0* /dev/.udev/names/par0* /dev/.udev/names/par0/\x2fclass\x2fprinter\x2flp0* /dev/.udev/names/parport0* /dev/.udev/names/parport0/\x2fclass\x2fppdev\x2fparport0* /dev/.udev/db* /dev/.udev/db/\x2fclass\x2fprinter\x2flp0* /dev/.udev/db/\x2fclass\x2fppdev\x2fparport0* /dev/.udev/uevent_seqnum* /dev/ptmx* /dev/pts/0'' - Patricia Constantino Sosa ''
''' c. system-config-users'''
''' d. system-config-display'''
* list of files here/etc/X11/xorg.conf* your name here/etc/X11/xorg.conf.backup* Nestor the Player
''' e. system-config-services'''
Enabling the Bluetooth service altered the following files:* /etc/rc.d/rc0.d: /etc/rc.d/rc0.d/K72ntpd, /etc/rc.d/rc0.d/K84wpa_supplicant, /etc/rc.d/rc0.d/K72setroubleshoot, /etc/rc.d/rc0.d/K74kerneloops, /etc/rc.d/rc0.d/K50bluetooth* /etc/rc.d/rc1.d: /etc/rc.d/rc1.d/K72ntpd, /etc/rc.d/rc1.d/K84wpa_supplicant, /etc/rc.d/rc1.d/K72setroubleshoot, /etc/rc.d/rc1.d/K74kerneloops, /etc/rc.d/rc1.d/K50bluetooth* /etc/rc.d/rc2.d: /etc/rc.d/rc2.d/K72ntpd, /etc/rc.d/rc2.d/S50bluetooth, /etc/rc.d/rc2.d/K84wpa_supplicant, /etc/rc.d/rc2.d/K72setroubleshoot, /etc/rc.d/rc2.d/K74kerneloops* /etc/rc.d/rc3.d: /etc/rc.d/rc3.d/K72ntpd, /etc/rc.d/rc3.d/S50bluetooth, /etc/rc.d/rc3.d/K84wpa_supplicant, /etc/rc.d/rc3.d/S90kerneloops, /etc/rc.d/rc3.d/S28setroubleshoot* /etc/rc.d/rc4.d: /etc/rc.d/rc4.d/K72ntpd, /etc/rc.d/rc4.d/S50bluetooth, /etc/rc.d/rc4.d/K84wpa_supplicant, /etc/rc.d/rc4.d/S90kerneloops, /etc/rc.d/rc4.d/S28setroubleshoot* /etc/rc.d/rc5.d: /etc/rc.d/rc5.d/K72ntpd, /etc/rc.d/rc5.d/S50bluetooth, /etc/rc.d/rc5.d/K84wpa_supplicant, /etc/rc.d/rc5.d/S90kerneloops, /etc/rc.d/rc5.d/S28setroubleshoot* list of files here/etc/rc.d/rc6.d: /etc/rc.d/rc6.d/K72ntpd, /etc/rc.d/rc6.d/K84wpa_supplicant, /etc/rc.d/rc6.d/K72setroubleshoot, /etc/rc.d/rc6.d/K74kerneloops, /etc/rc.d/rc6.d/K50bluetooth''- Katherine Masseau''.  
* your name here
 
'''8. How can I get the lasts modified files in the system using find command ?'''
 
* find /etc -mmin -2 --> This will let u see all files in /etc that were modified in last 2 minutes.
* find /etc -cmin -2 --> This will let u see all files in /etc that were changed in last 2 minutes.
* Nestor the Master
 
'''8. A simpler way to find the files modified by a change made in the system configuration GUI:'''
 
If you are trying to determine what files in the /etc/ directory were modified by a particular configuration change made in the GUI, the simplest method is the following:
 
1. Before you make the alteration to the GUI settings, run the following command in your shell of choice:
 
touch ~/timestamp
 
This command creates an empty file in your home directory named timestamp. We don't need to put anything in this file - the only important part is the modification time.
 
2. Make the configuration alteration that interests you in the GUI.
 
3. Now, return to your shell of choice and run the following command:
 
find /etc/ -cnewer ~/timestamp
 
This command will return a list of files in the /etc/ directory that have been modified more recently than the file '~/timestamp', making it much easier than attempting to calculate the correct time by hand using the other time related switches for the find command.
 
''- Katherine Masseau''
 
'''system-config-firewall'''
*/etc/sysconfig/iptables
*/etc/sysconfig/iptables-config
*/etc/sysconfig/ip6tables-config
*/etc/sysconfig/ip6tables
''- Varinder Singh''

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