Go back to fronty page View most popular entries View latest additions Submit tutorials to UnixTutorials.info
UnixTutorials logo

Search results for Filtering PDF-/XLS-/Image-Spam With ClamAV (And ISPConfig) On Debian/Ubuntu

Linux

Running ISPConfig On Port 80 Using Apache's Reverse Proxy Feature (Debian Etch)

Post date: May 23, 2007, 22:05 Category: System Views: 5539 Comments
Tutorial quote: This article shows how you can configure a Debian Etch system that has the webhosting control panel ISPConfig installed so that ISPConfig can be accessed on port 80. By default ISPConfig uses port 81 which is a non-standard port and is blocked by some firewalls and ISPs. By using Apache's mod_proxy module, we can avoid this problem. It lets us create a reverse proxy that can fetch the pages from ISPConfig on port 81.
Ubuntu

Squid Proxy Server On Ubuntu 9.04 Server With DansGuardian, ClamAV, And WPAD

Post date: July 3, 2009, 11:07 Category: Installing Views: 7444 Comments
Tutorial quote: This tutorial will demonstrate how to set up a Squid Proxy server on Ubuntu 9.04 Server with DansGuardian (for content filtering) and ClamAV (for Virus scanning); in addition, we will set up Web Proxy AutoDetection (WPAD) through DHCP (in this case, the Windows Server 2003 DHCP server) or DNS so that the only configuration necessary on the client side is to check "Auto-detect proxy settings for this network" in Firefox or Internet Explorer. At the end of the tutorial, users will have a fully functional and secure proxy for HTTP access.
Debian

HELO restrictions for Exim4

Post date: June 16, 2006, 22:06 Category: Security Views: 3334 Comments
Tutorial quote: One thing that I've noticed on my mailserver in recent months has been a large number of spam mails which identify themselves as being sent from my own IP address. Since they never are blocking them is a useful thing to do before any more intensive filtering is done.
Untangle

Spam Blocking And Web Filtering With The Untangle 5.3 Network Gateway

Post date: September 4, 2008, 10:09 Category: Security Views: 8325 Comments
Tutorial quote: Untangle bundles common open-source applications for blocking spam, spyware, viruses, adware and unwanted content on the network in one single Linux distribution. It can be integrated into existing networks either as a router or as a transparent bridge (directly behind the router, but before the switch that connects the client PCs with the router). The best thing about Untangle is that you do not have to reconfigure the client PCs - Untangle works out of the box.
Linux

Linux Web Filtering in 7 steps

Post date: April 12, 2005, 18:04 Category: Network Views: 4590 Comments
Tutorial quote: How to install a transparent Squid proxy server with real-time HTTP virus scanning on Mandrake 10.0 using DansGuardian and ClamAV?

People quickly and easily access volumes of research on the Internet and correspond with a mouse click. For more and more companies, content filtering is part of the large battle to combat all kinds of online threats, including hackers, worms and viruses. Linux content filtering allows administrators to configure and manage Internet access across the entire network and to block unwanted Web content like pornography, shopping Web sites, games and gambling.

This guide contains all the necessary information for installing and understanding the architectural layout of the implementation. It was written with the assumption that you understand how to install programs and have a basic understanding of Linux Mandrake. This includes installing Linux Mandrake and RPM packages, editing files, making directories, compiling software and understanding general UNIX commands. This guide doesn’t explain how to use or configure Squid, DansGuardian and ClamAV but information on where to obtain this information can be found in the “Additional information” section.
Linux

Creating DjVu Documents Linux HOWTO

Post date: July 16, 2006, 16:07 Category: Miscellaneous Views: 4461 Comments
Tutorial quote: This document explains some of the uses of djvulibre implementation of DjVu for creating quality DjVu documents in linux. DjVu format features bitmap document compression and hypertext structure. It is used by numerous web sites all around the world for storing and distributing digital documents including scanned documents and high-resolution pictures. One of the advantages of DjVu files is that they are notably small, often smaller than PDF or JPEG files with the same content. This makes DjVu a helpful tool for digitizing books and journals, especially scientific ones.

Below it is considered the case when a DjVu document is created from a number of separate JPEG files each containing a single page. Here JPEG format is not a limitation, and the examples can cover arbitrary image formats. Conversion from PDF to DjVu is also discussed. Usage of scanner software is not explained: refer to the relevant documentation.
Linux

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

Post date: June 4, 2007, 23:06 Category: Security Views: 4927 Comments
Tutorial quote: 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.
Debian

The Perfect Server - Debian Squeeze (Debian 6.0) [ISPConfig 2]

Post date: February 13, 2011, 19:02 Category: Installing Views: 3522 Comments
Tutorial quote: This tutorial shows how to set up a Debian Squeeze (Debian 6.0) server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. In the end you should have a system that works reliably, and if you like you can install the free webhosting control panel ISPConfig 2 (i.e., ISPConfig runs on it out of the box).
Debian

The Perfect Server - Debian Lenny (Debian 5.0) [ISPConfig 2]

Post date: February 19, 2009, 12:02 Category: Installing Views: 5008 Comments
Tutorial quote: This tutorial shows how to set up a Debian Lenny (Debian 5.0) server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. In the end you should have a system that works reliably, and if you like you can install the free webhosting control panel ISPConfig 2 (i.e., ISPConfig runs on it out of the box).
Debian

Installing Dansguardian With Multi-Group Filtering & Squid With NTLM Auth (Debian Etch)

Post date: July 17, 2008, 10:07 Category: Installing Views: 4859 Comments
Tutorial quote: This how-to describes how to install and configure Dansguardian with multi-group filtering, Squid with NTLM auth, ipmasq, and dnsmasq to provide a full internet gateway solution for small to medium sized networks. This how-to requires two NICs in order to perform firewalling and transparent proxying.
Web-based applications and online marketing solutions - LumoLink