Tuesday, August 17, 2010

Installing VirtualBox Guest addition on SUSE

When you try to run the installation script, you'll receive this error

"Your system does not seem to be set up to build kernel modules"

What you need to do is to install both GCC and the Kernel Source. You can do that by running YaST and install it using the Software Management.

Thursday, August 5, 2010

Installing Microsoft Exchange 2010

First of all, take note of the system requirements.
  • PC―An x64 architecture-based computer with Intel processor that supports Intel Extended Memory 64 Technology (Intel EM64T) or AMD processor that supports the AMD64 platform; Intel Itanium family IA64 processors are not supported.
  • Operating system―Microsoft Windows Server 2008 x64 Standard and Enterprise Edition with Service Pack 2 or Microsoft Windows Server 2008 R2 Standard and Enterprise Edition.
Basically you need a Windows Server 2008 x64 edition on an x64 Intel or AMD machine. Make sure you have more than 25GB of free hard disk space even if you are installing for trial purposes.
Before you install Exchange 2010, you will need to do the following else you will be wasting a lot of time with Exchange readiness checks.

1. Net.TCP Port Sharing service to Automatic
3. Install IIS 7 and turn on the following
  • .Net Extensibility
  • Basic Authentication
  • Windows Authentication
  • Digest Authentication
  • Dynamic Content Compression
  • IIS Management Console
  • .IIS 6 Metabase Compatibility
  • IIS 6 Management Console
4. Install .Net Framework 3.5 SP1 and turn on WCF Activation, HTTP Activation.
7. Install Active Directory and DNS service

Wednesday, May 12, 2010

Microsoft Security Essentials

If you are using Windows and looking for a free anti virus solution or even contemplating to download an illegal cracked version, you can stop now. If you already have one installed, replace it especially if it is illegal.

What I like about it from my experience so far

- acceptable use of resource that it will not strangle your machine to a standstill.
- can detect threats that other solutions do not. Probably because Microsoft knows their product better hence able to detect any changes that is detrimental to Windows and avoid it.
- don't seem to break anything, yet. All applications still running as usual.
- support all operating system from XP onwards.
- nice GUI, if that matters to you.
- ease of use. Nothing confusing, from scanning to updates.
- it's totally free as long as your Windows is properly licensed and activated.

So why the hell am I recommending a Windows product if you're wondering?

I may not like Microsoft (for their licensing model) but I have to give credits where it's due. It's good not because it is free. But it's good that it is free.

Thursday, April 29, 2010

Siemens A580IP

If you are looking for an IP phone, then look no further. You can't go wrong with the Siemens A580IP

Main features of the A580IP

- dual mode functionality (supports both Internet and fixed-line calls)
- registers up to 6 handsets per base
- can support up to 6 VoIP (SIP) accounts
- can make 3 simultaneous calls (2 VoIP and 1 fixed-line calls)

You can get one for around $100 which is a worthwhile investment. Buy additional handsets if you need to use the phone in more than one room. With one base, you save electricity and a tidier setup. Think of a WiFi access point and you'll get the picture.

With 6 different SIP accounts, you can configure the handsets to receive incoming calls from different SIP accounts or share a SIP account with multiple handsets, and in any combination, depending on how you configure the 'Number Assignment'. If you configure a handset with multiple SIP accounts, then handsets will show which SIP account the incoming call is for. You can also configure it in such a way that a handset will make use of a different SIP account than the one it is assigned to receive an incoming call. Nice features there.

Everything can be done on the web. You need not even touch the handsets, accept to register it to the base and check the IP address assigned to the base. Once registered, configuration through the web interface is very easy and pretty straightforward. It won't take long before you are up and running with just these few steps.

- connect the base to your network
- power up both base and handset(s)
- register the handset(s) to base
- check the IP of the base from the handset
- log in to the base using its IP address to configure

Voice quality is superb, even when using the hands free. And the range is better than I expected. I could still hear clearly, more than 30 meters away from the base, which is more than enough for your home or your small office.

With multiple handsets, you can make handsets to handsets call and cut the need for additional intercom setup.

And does it work with Asterisk? Definitely.

All in all, this is a great product and kudos to Siemens for coming up with the A580IP.


Tuesday, April 27, 2010

Sunday, February 14, 2010

Huawei E1762 on Linux

You'll need two packages and a configuration file

usb-modeswitch version => 1.07
usb-modeswitch-data file dated => 10 Jan 2010
usb_modeswitch.conf => 2010-03-09

Note: The above package links are for Debian based distribution like Ubuntu. If you are using 10.04 Lucid, use the Ubuntu Software Center to install both usb-modeswitch and usb-modeswitch-data.

Install the packages at the same time

Place the configuration file in /etc directory. To check if you have place the configuration file at the right place just type
# usb_modeswitch
and it should not give you a 'file not found error'.

To check if your stick is correctly detected as a modem, give the command
# lsusb
you should see something like this
Bus 002 Device 009: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E270 HSDPA/HSUPA Modem
If you see something like this
Bus 002 Device 002: ID 12d1:1446 Huawei Technologies Co., Ltd
edit the configuration file by giving the command
# sudo gedit /etc/usb-modeswitch.conf
and find the lines that says 'E7162' and uncomment the 5 lines that follows. There are two instances of 'E1762'. Either one will work. Save the edited file, and give the command
# sudo usb_modeswitch -H -v 12d1 -p 1446 -c /etc/usb-modeswitch.conf
Now check if the dongle is detected correctly by giving the 'lsusb' command again and you should the stick is now detected as a modem.

If you are using on a 64-bit architecture, you can download them here

If you are not using a Debian based distribution, you can download the files below


Monday, January 4, 2010

HyperTerminal in Windows 7

Windows 7 do not come with HyperTerminal but you can simply copy the required files from Windows XP to solve that.

You will need just two files.

hypertrm.exe, which you can copy from "C:\Program Files\Windows NT" and place anywhere you like in Windows 7. I would personally place it on the Desktop.

hypertrm.dll, which you can copy from "C:\Windows\System32" and placed at the exact same location in Windows 7.

Double click on on hypertrm.exe and you're good to go.