Archive for the ‘System Management’ Category

Ubuntu Sound Recorder configuration problem

he default sound recorder in Ubuntu 9.10 is Sound Recorder, which is a part of the Gnome desktop environment. However, this implementation of Sound Recorder seems to have a problem, which means, that the configuration settings are lost from time to time. If you use Sound Recorder to record critical conversations, then this is a [...]

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Making websites or blog posts printer friendly

ontent management system (CMS) websites, themes and blog posts are designed for screens. They look nice on your screen. If you try to print, you will find, that it does not look well. They are not designed for print.
A quick way to make a website or a blog post printer friendly is to use an [...]

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Monitoring bandwidth with RRDtool and SNMP

onitoring is an important component of providing a reliable and professional service. One primary and common type of monitoring is historic monitoring. It is used for recording long-term uptime, usage and performance statistics.
This example will use RRDtool and Simple Network Management Protocol (SNMP) on a FreeBSD operating system to monitor the network traffic on a [...]

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Secure online backup and restore with Tarsnap

ata has become a critical part of any environment. In order to be able to restore data in the event of loss or changes, system administrators need to backup data.
When choosing a backup and restore method, it is a good idea to think of reasons and requirements for restores. Typical reasons for restores are written [...]

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Setting margins for printing in Evolution Mail for Ubuntu

he default margins for printing in the Evolution Mail client for the Ubuntu operating system is close to the edges of the paper per default. This is the procedure for setting the margins.
Open Evolution Mail. Click File. Click “Page Setup…”. Set the value of “Format for” to the printer in question. Set the value of [...]

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Updating the rules of SpamAssassin

n order to stay updated with the latest spam identification rules, it is necessary to update the internal rules of SpamAssassin.
This procedure for SpamAssassin on a FreeBSD operating system will check for updates in rules, and, if available, download and install them.
SpamAssassin provides a silent utility, that downloads and installs the latest rules from a [...]

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Protecting personal data

hinking, that you are above reproach, is not enough to stop your personal data from being used against you by authorities, employers, marketing campaigns, hackers and sick people with or without your permission or authorization.
Personal data can be used for theft of identity, criminal activities, revenge and other critical abuse, that can give you severe [...]

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Password protecting a website

assword protecting a website or part of a website is used to control access.
Which method you use depends on the operating system, web server, language and content management system.
If you use the FreeBSD operating system and the Apache web server, a simple solution is to use the htpasswd utility.
In the following example, two users are [...]

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WordPress, pictures and galleries

he content management system WordPress has a built in feature, that can handle pictures. However, this is not a well working feature. Fortunately, WordPress supports the use of plugins, which are extensions for WordPress. You can find many different plugins for WordPress on the homepage of WordPress.
NextGEN Gallery handles pictures much better. It is easy [...]

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Graphical website visitor statistics

Graphical website visitor statistics (usage reports) is created on the basis of website log file analysis.
One way to do this, is to install Webalizer, which is an open source log file analysis utility, that can produce graphical website visitor statistics in HTML format, that can be viewed in a browser.
Webalizer can read standard log file [...]

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