Technical Knowledge Professional Archive

1. Log on as root on the machine.

2. Type “vi /etc/squid/squid.conf” to open the configuration file.

3. Type “/http_port” to search down the port setting line.

4. Type “i” to enter Insert mode.

5. Change port value

http_port 80

6. Type “/http_accel” and press Enter to search down to Web Acceleration section.

7. Continue down to

#httpd_accel_host hostname
#httpd_accel_port port

8. uncomment the two lines

httpd_accel_host www

9. Change port value

httpd_accel_port 80

10. Using acceleration will tur off web proxy.

#httpd_accel_with_proxy off

11. Change the line to turn the web proxy on.

httpd_accel_with_proxy on

12. Press the ESC key to go to Command mode and type “ZZ” to save and exit.

1. Determine which printer queue.

2. Determine which files.

3. Command: lpq

lpq to see the full contents of the print queue.

lpq -P “printername” to view the contents of the specific printer’s queue.

lpq “user” to view a specific user’s print jobs.

lpq -P “pprintername” “user” to view all jobs by a specific user for a specific printer.

Honeypots are designed to let access to a particular connection for potential attackers or intruders. They are built as decoys to keep the main production server or other servers away from the prying eyee and hands of the intruders. Honeypots only complement the Intrusion Detection Systems (IDS).

Attracting the attention of attackers: This keeps the intruder away from main production servers acting as a decoy.

Tracking all intrusion attempts: Honeypots track every information or connection which displays the way the attacker or intruder used to connect, invade, or gaining access to the system.

1. Log on as root on the machine.

2. Insert the Red Hat CDROM.

3. Mount the CDROM to filesytem “mount /mnt/cdrom”

4. Type “cd /mnt/cdrom/RedHat/RPMS” to change directory.

5. Verify that you have the X Server installed.

6. Proceed to the appropriate choices to finish the installation.

Command: -d ! address/mask ! port1 : port2

! - The exclamation points stands for “not". For example the first exclamation point cannot be from a specific address and the second exclamation point cannot be from a specific port.

address - This is where the IP address or network address value the rule refers to.

mask - A subnet mask or network mask that shows the portion of the network listed.

port1 - The specific destination port number at the specified addresses.

port2 - Used for the range of ports rather than a single port.