This article shows how to integrate amavisd-new into a Postfix mail server for spam- and virus-scanning. amavisd-new is a high-performance interface between MTAs such as Postfix and content checkers: virus scanners, and/or SpamAssassin. We will use ClamAV for virus scanning and SpamAssassin for spam scanning in this tutorial. http://www.howtoforge.com/amavisd_postfix_debian_ubuntu
Josh Kuo's article Beef Up Your Wireless Router talks about the OpenWRT embedded Linux distro for the the Linksys WRT series wireless routers (and more). The article lays out some of the amazing things you can do with your Linux-enabled wireless router such as using it as a VoIP gateway, a wireless hotspot, or even an encrypted layer 2 tunnel endpoint for remote troubleshooting.
High Mobley's article Secure Linux Appliances in Your Enterprise talks about the Debian Router Project, which provides an easy way to build your own Linux appliances. The article also provides several ideas of what types of appliances you can make with your new found knowledge.
Josh Kuo's article about Vim describes a new time-shifting feature to make your editing life easier.
InfoWorld has an article by Justin Brink about the open source ZoneMinder digital surveillance camera recording software. Justin discusses the features of ZoneMinder, as well as why a business would choose ZoneMinder over more expensive black box DVR options.
This is list of Media Players Available for Ubuntu Linux with installation instructions and screenshots this includes Mplayer,songbird,amarok,listen,beep media player, banshee,Rhythmbox, xmms, quod libet,VLC Media Player,Exaile. Very Useful list for all Users and admins Full Story
The basics for any network based on *nix hosts is the Transport Control Protocol/ Internet Protocol (TCP/IP) combination of three protocols. This combination consists of the Internet Protocol (IP),Transport Control Protocol (TCP), and Universal Datagram Protocol (UDP).
NFS was developed at a time when we werenÃƒÂ¢Ã¢â€šÂ¬Ã¢â€žÂ¢t able to share our drives like we are able to today - in the Windows environment. It offers the ability to share the hard disk space of a big server with many smaller clients. Again, this is a client/server environment. While this seems like a standard service to offer, it was not always like this. In the past, clients and servers were unable to share their disk space.
In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig. MyDNS is a DNS server that uses a MySQL database as backend instead of configuration files like, for example, Bind or djbdns. The advantage is that MyDNS simply reads the records from the database, and it does not have to be restarted/reloaded when DNS records change or zones are created/edited/deleted. A secondary nameserver can be easily set up by installing a second instance of MyDNS that accesses the same database or, to be more redundant, uses the MySQL master / slave replication features to replicate the data to the secondary nameserver. http://www.howtoforge.com/mydns_mydnsconfig_dnsmasp_on_ubuntu_edgy
Normally, when a program runs under Linux, it inherits the permissions of the user who is running it, thus if I run a program under my account, the program runs with the same permissions that I would have if that program were me. Thus, if I cannot open a certain file, the program I am running also cannot open the file in question. If I set the SUID or SGID bit for a file, this causes any persons or processes that run the file to have access to system resources as though they are the owner of the file. http://www.howtoforge.com/linux_setting_suid_sgid_bits
This guide shows how to install the Zimbra Collaboration Suite (ZCS) on Ubuntu 6.10 (Edgy Eft) and 6.06 (Dapper Drake) server systems. Zimbra is a full-featured, open source collaboration suite - email, group calendaring, contacts, and web document management and authoring. It has a feature-rich AJAX web interface and is compatible with clients such as Microsoft Outlook, Apple Mail, and Novell Evolution so that mail, contacts, and calendar items can be synchronised from these to the ZCS server. It can also be synchronized to many mobile devices. ZCS makes use of many existing open source projects such as Postfix, MySQL, and OpenLDAP. http://www.howtoforge.com/installing_zimbra_collaboration_suite_on_ubuntu
Automated Image & Restore (AIR) is an open source application that provides a GUI front end to the dd/dcfldd (Dataset Definition (dd)) command. AIR is designed to easily create forensic disk/partition images. It supports MD5/SHAx hashes, SCSI tape drives, imaging over a TCP/IP network, splitting images, and detailed session logging. http://www.howtoforge.com/creating_dd_images_with_air
Claws Mail is an email client (and news reader), based on GTK+.The appearance and interface are designed to befamiliar to new users coming from other popular email clients, as well as experienced users.