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Search results for Preventing Brute Force Attacks With Fail2ban On OpenSUSE 10.3

OpenSUSE

Preventing Brute Force Attacks With Fail2ban On OpenSUSE 10.3

Post date: October 15, 2007, 06:10 Category: Security Views: 5929 Comments
Tutorial quote: In this article I will show how to install and configure fail2ban on an OpenSUSE 10.3 system. Fail2ban is a tool that observes login attempts to various services, e.g. SSH, FTP, SMTP, Apache, etc., and if it finds failed login attempts again and again from the same IP address or host, fail2ban stops further login attempts from that IP address/host by blocking it with an iptables firewall rule.
Debian

Preventing Brute Force Attacks With Fail2ban On Debian Etch

Post date: May 1, 2007, 21:05 Category: Security Views: 4179 Comments
Tutorial quote: In this article I will show how to install and configure fail2ban on a Debian Etch system. Fail2ban is a tool that observes login attempts to various services, e.g. SSH, FTP, SMTP, Apache, etc., and if it finds failed login attempts again and again from the same IP address or host, fail2ban stops further login attempts from that IP address/host by blocking it with an iptables firewall rule.
OpenSUSE

Block ssh brute force attack on OpenSuSe

Post date: June 27, 2009, 09:06 Category: Security Views: 3684 Comments
Tutorial quote: A brute force attack consists of trying every possible code, combination, or password until you find the right one.

As an example, imagine a system which only allows 4 digit PIN codes. This means that there are a maximum of 10,000 possible PIN combinations.
Debian

Preventing Brute Force Attacks With BlockHosts On Debian Etch

Post date: September 30, 2007, 09:09 Category: Security Views: 4008 Comments
Tutorial quote: In this article I will show how to install and configure BlockHosts on a Debian Etch system. BlockHosts is a Python tool that observes login attempts to various services, e.g. SSH, FTP, etc., and if it finds failed login attempts again and again from the same IP address or host, it stops further login attempts from that IP address/host. By default, BlockHosts supports services that use TCP_WRAPPERS, such as SSH, i.e. services, that use /etc/hosts.allow or /etc/hosts.deny, but it can also block other services using iproute or iptables.
Linux

Key-Based SSH Logins With PuTTY

Post date: December 10, 2006, 20:12 Category: Security Views: 3434 Comments
Tutorial quote: This guide describes how to generate and use a private/public key pair to log in to a remote system with SSH using PuTTY. PuTTY is an SSH client that is available for Windows and Linux (although it is more common on Windows systems). Using key-based SSH logins, you can disable the normal username/password login procedure which means that only people with a valid private/public key pair can log in. That way, there is no way for brute-force attacks to be successful, so your system is more secure.
Debian

Preventing MySQL Injection Attacks With GreenSQL On Debian Etch

Post date: October 28, 2008, 12:10 Category: Security Views: 3688 Comments
Tutorial quote: GreenSQL (or greensql-fw) is a firewall for MySQL databases that filters SQL injection attacks. It works as a reverse proxy, i.e., it takes the SQL queries, checks them, passes them on to the MySQL database and delivers back the result from the MySQL database. It comes with a web interface (called greensql-console) so that you can manage GreenSQL through a web browser. This guide shows how you can install GreenSQL and its web interface on a Debian Etch server.
Debian

Installing ModSecurity2 On Debian Etch

Post date: July 7, 2007, 00:07 Category: Installing Views: 3573 Comments
Tutorial quote: This article shows how to install and configure ModSecurity (version 2) for use with Apache2 on a Debian Etch system. ModSecurity is an Apache module that provides intrusion detection and prevention for web applications. It aims at shielding web applications from known and unknown attacks, such as SQL injection attacks, cross-site scripting, path traversal attacks, etc.
Debian

Secure Your Apache With mod_security

Post date: July 16, 2006, 16:07 Category: Security Views: 4926 Comments
Tutorial quote: This article shows how to install and configure mod_security. mod_security is an Apache module (for Apache 1 and 2) that provides intrusion detection and prevention for web applications. It aims at shielding web applications from known and unknown attacks, such as SQL injection attacks, cross-site scripting, path traversal attacks, etc.

In the first chapter I will show how to install mod_security on Debian Sarge, Ubuntu 6.06 LTS (Dapper Drake), and on Fedora Core 5, and in the second chapter I will describe how to configure Apache for mod_security which is independent from the distribution you're using.

I want to say first that this is not the only way of setting up such a system. There are many ways of achieving this goal but this is the way I take. I do not issue any guarantee that this will work for you!
Unix+clones

DNS Common Abuses

Post date: April 17, 2005, 09:04 Category: Security Views: 2369 Comments
Tutorial quote: In paper I have present several features of DNS to make the reader familiar with the basics of the Domain Name System. I have also covered several well known and wide spread attacks that are used to exploit DNS. These attacks are by no means theoretical. In truth they grow more and more common as attackers become more sophisticated. The suggested defense methods outlined at the end of each section cover only the basic recommendations that can be used to thwart attackers.
OpenSUSE

Setup and Configure openSUSE 11.0

Post date: August 18, 2008, 06:08 Category: Installing Views: 4239 Comments
Tutorial quote: openSUSE 11.0 is the best Linux distribution out there. However, there are some rough edges and if you want to get up and running with openSUSE 11.0 then there are likely a few customizations you’ll want to make.
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