techxplore blog

Archive for the 'Open Source Software' Category

05 Jan

Official Samsung Galaxy S and Galaxy Tab Ice Cream Sandwich Upgrade

Google’s Ice Cream Sandwich the latest version of Android operating system is making way to major tablet computer and smartphone. Many Samsung mobile device users have been anticipating an upgrade for Galaxy S and Galaxy Tab which belong to 2010′s top devices. Anyone with those devices are clamoring for an upgrade to Android 4.0. Users [...]

21 Jan

Opening MS 2007 Email Attachments in Firefox Internet Browser

Internet emails are a fast way of communication. I receive lots of emails everyday and some of which have some office documents attached. I am not fond of the POP3 email client program such as MS Outlook, Mozilla Thunderbird, and many others. I stick with the old web based email interface using the Firefox internet [...]

09 Sep

Redhat Enterprise Linux Remove Root Password

Computer security is a basic feature that is often over look by usual users. Operating systems whether Linux, Microsoft Windows, or Apple OS have made security an important feature. But, it is a common mistake people have to leave a desktop computer without any password. While this is not true for computer servers as system [...]

24 Jun

Monitoring Server Uptime and Automatic Downtime Alert Software

There are different computer servers in our working place. We have a mail server, proxy server, database server, web server, ERP application server, and many more. Monitoring each server is a very important aspect of the daily operation. Experiencing a downtime in a server will have the helpdesk hotline flooded with calls. Thus, server uptime [...]

17 Jun

Malware and Virus Threats on Mobile Smart Phones for Real

The security threat on smart phone increases by the days as more applications are made available. The multitasking mobile device operating system is of those major considerations by users. Having a multitasking system will allow more applications for smart phones. Many have frowned before on iPhone, iPad, and iPod Touch, for the lack of multitasking [...]

01 Jun

Google’s Lightweight Chromium OS for Netbooks and Mobile Devices

Computer security is such a hot issue. The attacks that successfully penetrated many enterprises have made people think twice about Windows operating system. Search engine giant Google was one of those targeted with vulnerable version of Microsoft Internet Explorer for this reason they are pushing other OS like Mac or Linux. Nobody can really say [...]

25 May

Test Server RedHat Linux Hostname Change

Having a test server environment is important for developers and support staff. We usually replicate production servers running RedHat Linux using rsync for creating test server environment. Avoiding conflicts when the test server are put live requires some basic changes. A primary thing to change is the hostname of the RedHat Linux test server. There [...]

13 May

Linux locate: can not open ‘/var/lib/mlocate/mlocate.db’: No such file or directory

Linux operating system has evolved through the years from a mostly command line interface (CLI) to newer graphic user interface (GUI). Most computer geek prefer to use CLI over GUI. They might have a good reason as there are more things that could be done or better run on system command line. In Linux, a [...]

20 Apr

Oracle Linux TNS-12541: TNS:no listener and TNS-12560: TNS:protocol adapter error

Debugging of Oracle ERP Applications are dangerous to do on production servers. Thus, Oracle testing environments are pretty important for system administrator work. A separate clone Oracle database server with Oracle ERP Application running is a must for worry free debugging and testing. At work RedHat Enterprise Linux kernel version 2.4.9-e.62 host both the Oracle [...]

22 Feb

Increasing Virtual Machine Disk Size Disaster Recovery

Virtual machine are cool to use even for a working desktop. Backup of the whole virtual machine and taking snapshot copies is easy. I have a virtual machine which runs Windows XP SP2. The original system disk size of 10 Gb is a bit limited. Several system updates, installation of MS 2007 Office Suite and [...]