Ubuntu Linux for beginners and experts. An Ubuntu community with support forums and more.

How To Block Spam Before It Enters The Server (Postfix)

The last few weeks have seen a dramatic increase in spam (once again). Estimates say that spam makes now up for 80 - 90% of all emails, and many mail servers have difficulties in managing the additional load caused by the latest spam, and spam filters such as SpamAssassin do not recognize large parts of that spam as they did before. Fortunately, we can block a big amount of that spam at the MTA level, for example by using blacklists, running tests on the sender and recipient domains, etc. An additional benefit of doing this is that it lowers the load on the mail servers because the (resource-hungry) spamfilters have to look at less emails. http://www.howtoforge.com/block_spam_at_mta_level_postfix

The Perfect Xen 3.1.0 Setup For Debian Etch (i386)

This tutorial describes how to install Xen 3.1.0 on a Debian Etch system (i386). Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called virtual machines or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. http://www.howtoforge.com/debian_etch_xen_3.1

Azureus - A Nice Java BitTorrent Client

Azureus implements the BitTorrent protocol using java language and comes bundled with many invaluable features for both beginners and advanced users.Azureus offers multiple torrent downloads, queuing/priority systems (on torrents and files), start/stop seeding options and instant access to numerous pieces of information about your torrents. Azureus now features an embedded tracker easily set up and ready to use.

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Web,Streaming,ftp or mail server Logs analyzer Using Awstats

AWStats is a free powerful and featureful tool that generates advanced web, streaming, ftp or mail server statistics,graphically. This log analyzer works as a CGI or from command line and shows you all possible information your log contains, in few graphical web pages. It uses a partial information file to be able to process large log files, often and quickly. It can analyze log files from all major server tools like Apache log files (NCSA
combined/XLF/ELF log format or common/CLF log format), WebStar, IIS (W3C log format) and a lot of other web, proxy,wap, streaming servers,mail servers and some ftp servers.

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Login loses first character

I have a new install of Kubuntu and a minor problem with the login screen. My user name is displayed by default when the screen appears. The cursor is blinking in the password field. When I begin to type the first character is not recorded. In order for the login to work I have to first type a space or type the first character twice. Is this unusual? I have been using various Linux distros since Red Hat 8 and this is the first time I have encountered this sort of problem. I hope this is not a "feature" because it is annoying.

World of Warcraft downloading slow.

I was downloading World of Warcraft through WINE but it downloads at about 256kb per minute, and my regular download speed peaks at around 1024kb/s. It also takes up al my processing speed. Any help?               Thanks,                      SPH92

Retrieving Emails From Remote Servers With fetchmail (Debian Etch)

Fetchmail is a program for retrieving emails from remote servers. Imagine you have five email accounts on five different servers. Of course, you do not want to connect to each of them to get your emails. This is where fetchmail comes into play. If you have a user account on a Linux server, you can make fetchmail download emails from remote servers and put them into just one mailbox (the one of your Linux user), from where you can retrieve them with your email client (e.g. Thunderbird or Outlook). http://www.howtoforge.com/debian_etch_fetchmail

Book

 What book will teach me 7.04 stuff?Thanks

Apache: Creating A Session-Aware Loadbalancer Using mod_proxy_balancer (Debian Etch)

mod_proxy_balancer is an Apache module that lets you create a loadbalancer. This loadbalancer retrieves requested pages from two or more backend webservers and delivers them to the user's computer. An important feature of mod_proxy_balancer is that it keeps track of sessions so that a single user always deals with the same backend webserver. http://www.howtoforge.com/load_balancing_apache_mod_proxy_balancer

Lost shutdown option in exit menu

Hello all.Since the last update 2 days ago, when I press the power button on my laptop the only options available are: logout, lock screen, switch user, suspend and hibernate. Shutdown and restart are missing completely.Does anyone know how to retrieve those options?Thank you in advance for your help.

Problem accessing second partition

    Hi...This is my first post and its a cry for help so please be gentle :-).  Basically i installed ubunti 6.06 on a snd hard drive and loved it.  The harddrive is 60gb so for trial purposes when installing i only created a 10gb partition.  I now plan to use the full disk for linux (it was previously a ntfs drive) so i managed to format the remainder of the drive to ext3. The problem i now have is a cant access this 2nd partition.  Basically hdb2 is where my ubuntu installation is and acording to disk manager it says the access path is / .  The new partition i want to access is hdb1 and the acces path is /boot ?  I hope this makes sense Im brand new to Linux. Can anyone help ?? :-)

nBox - Envision your network with nBox (Embedded Ntop)

The life of a systems or network administrator requires us to maintain an expansive understanding of our network infrastructure to more effectively manage it. Amidst volumes of complex data that some IT problems present and network management is no exception to these complications. Visual tools allow us to better see trends and make sense of the macro view of our networks. Ntop, nBox, nProbe are just the right FOSS tools that can help us gain greater insight. http://www.howtoforge.com/network_monitoring_with_nbox

Fixing a scanner broken by the Feisty upgrade

If you have been using a USB scanner and upgrade from Edgy to Feisty, you may find that your scanner no longer works.You can use this fix to solve your scanner problem.

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Filesystem Encryption Tools for Linux

Crypto filesystems keep your data safe – even if someone steals your computer.Linux offers a number of encrypted filesystem options – each with a different approach to the encryption problem.Encrypted filesystems may be overkill for family photos or your résumé, but they make sense for network-accessible servers that hold sensitive business documents, databases that contain credit-card information, offline backups, and laptops.

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Using Ruby On Rails With Apache2 On Debian Etch

This article shows how you can install Ruby on Rails (RoR) and integrate it in Apache2 on a Debian Etch system. Ruby on Rails is a web application framework which is rapidly gaining popularity among web programmers. It aims to increase the speed and ease with which database-driven web sites can be created and offers skeleton code frameworks (scaffolding) from the outset. Applications using the RoR framework are developed using the Model-View-Controller design pattern. http://www.howtoforge.com/ruby_on_rails_debian_etch