Install Php for Apache22 on FreeBSD

Install php5
cd /usr/ports/lang/php5
make install clean

Note: portaudit may stop installation because of vulnarabilities of php5 port. In order to solve this problem give following command.
make -DDISABLE_VULNERABILITIES install clean

Disable Beep/Bell Sound on FreeBSD

This command would disable the hardware beep/bell sound for the current session.

sysctl hw.syscons.bell=0

If you want to disable the beep/bell sound persistently you should add the “hw.syscons.bell=0” entry to /etc/sysctl.conf file by giving the following command;

echo “hw.syscons.bell=0” >> /etc/sysctl.conf

How to switch between different Java (JVM) in Ubuntu and Debian GNU Linux

How to switch between different Java (JVM) in Ubuntu and Debian GNU Linux

Sometimes its hard to avoid installing multiple Java Virtual Machines (JVM) on your computer because it has something to do with application compatibility or software development purposes.

This creates an annoyance when you just want to run one of the JVM instead of another for a specific task, then having to switch to another JVM for other tasks.

Here’s an easy way to setup a default JVM (Java interpreter and javac) and switch between several JVM in Ubuntu / Debian based distribution.

From the console execute

sudo update-alternatives –config java

Select the Java distribution which best suits you and press enter. You’re done. You can always change the default JVM for your Ubuntu/Debian distribution by repeating this steps.

Change your Network Card MAC Address on Ubuntu

Change your Network Card MAC Address on Ubuntu

Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium.Consequently, each different type of network medium requires a different MAC layer. On networks that do not conform to the IEEE 802 standards but do conform to the OSI Reference Model, the node address is called the Data Link Control (DLC) address.

If you want to change your network card mac address you need to use simple utility called mac changer.MAC changer is a utility for manipulating the MAC address of network interfaces

Possible usages

You’re in a DHCP network with some kind of IP-based restriction

You’ve a cluster that boot with BOOTP and you want to have a clean set of MACs

Debug MAC based routes

MAC Changer Features

Set specific MAC address of a network interface

Set the MAC randomly

Set a MAC of another vendor

Set another MAC of the same vendor

Set a MAC of the same kind (eg: wireless card)

Display a vendor MAC list (today, 6800 items) to choose from

Install MAC Changer in Ubuntusudo apt-get install macchanger

This will complete the installation.

If you Find your MAC address using the following command

ifconfig

eth0 Link encap:Ethernet HWaddr 00:0C:29:A8:D0:FA
inet addr:172.20.22.35 Bcast:172.20.22.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fea8:d0fa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7690 errors:0 dropped:0 overruns:0 frame:0
TX packets:6399 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4284579 (4.0 MiB) TX bytes:876317 (855.7 KiB)
Interrupt:177 Base address:0×1080

In the above example MAC Address is 00:0C:29:A8:D0:FA

If you want to configure MAC Changer you need to stop the networking services using the following command

For Ubuntu Userssudo /etc/init.d/networking stop

Now you need to configure your MAC address using the following examples

MAC Changer Syntax

macchanger [options] device

Examples

macchanger eth1

Current MAC: 00:09:a5:eb:23:f7 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:09:a5:eb:23:f8 (Hansung Eletronic Industries Development Co., Ltd)

macchanger –endding eth1

Current MAC: 00:09:a5:eb:23:f8 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:09:a5:6f:31:23 (Hansung Eletronic Industries Development Co., Ltd)

macchanger –another eth1

Current MAC: 00:09:a5:6f:31:23 (Hansung Eletronic Industries Development Co., Ltd)
Faked MAC: 00:11:18:5b:3a:1f (Blx Ic Design Corp., Ltd.)

macchanger -A eth1

Current MAC: 00:06:5b:f6:f3:48 (Dell Computer Corp.)
Faked MAC: 00:0d:11:93:0c:4f (Dentsply – Gendex)

macchanger -r eth1

Current MAC: 00:0d:11:93:0c:4f (Dentsply – Gendex)
Faked MAC: 3c:f1:89:f9:1f:ce (unknown)

macchanger –mac=01:23:45:67:89:AB eth1

Current MAC: 00:40:96:43:87:65 [wireless] (Cisco/Aironet 4800/340)
Faked MAC: 01:23:45:67:89:ab (unknown)

./macchanger –list=Cray

Misc MACs:
Num MAC Vendor
— — ——
065 – 00:00:7d – Cray Research Superservers,Inc
068 – 00:00:80 – Cray Communications (formerly Dowty Network Services)
317 – 00:40:a6 – Cray Research Inc.

Here is the list of available options for MAC Changer

-h, -help

Show summary of options.

-V, -version

Show version of program.

-e, -endding

Don’t change the vendor bytes.

-a, -another

Set random vendor MAC of the same kind.

-A Set random vendor MAC of any kind.

-r, -random

Set fully random MAC.

-l, -list[=keyword]

Print known vendors (with keyword in the vendor’s description string)

-m, –mac XX:XX:XX:XX:XX:XX

Set the MAC XX:XX:XX:XX:XX:XX

If you completed the your MAC address changes you need to start the networking service using the following command

For Ubuntu Userssudo /etc/init.d/networking start

Kubuntu HP 6730s Audio Problem

add this line at the end of the file /etc/modprobe.d/options

options snd-hda-intel model=laptop enable=1 index=0

Asus A6Q00VC Ubuntu Headphone Problem

If you can’t get sound from your ASUS A6Q00VC Laptop on Ubuntu
just add the line:

options snd-hda-intel model=z71v

to  the file:

/etc/modprobe.d/options

reboot the system and enjoy your headphone