How-To: Prevent SPAM with Apache’s mod security
WordPress is a great piece of software to run a blog, it is flexible, has tons of plugins are developed for it and updates are really easy to do. To fight sp...
security
How-To: Fight SPAM with Postfix RBL
Spam, spam everywhere! If you are hosting your own mail server, fighting spam can become tricky. Antispam solutions do catch a fair amount of them, but still...
How-To: Automatically logout idle bash session
It can be useful to have a bash session automatically closing after some time. One of the obvious reason you might want this to happen is to make sure that n...
How-To: OpenVPN on Debian Squeeze with Username/Password authentication
OpenVPN is a SSL based VPN software that runs on most OS. It is simple to install and run.
How-To: Set up a L2TP over IPSec VPN using a Radius backend — page 3
In the previous part, we have configured XL2TP
How-To: Set up a L2TP over IPSec VPN using a Radius backend — page 2
We have now configured IPSec, let’s carry on with the next step.
How-To: Set up a L2TP over IPSec VPN using a Radius backend
Even though I pretty like OpenVPN, there is still some devices that might not support the TUN/TAP driver needed by OpenVPN.
How-To: Apache2 authentication using MySQL backend — page 2
In the first part, we have set up our database, let now add some user to authenticate.
How-To: Apache2 authentication using MySQL backend
this tutorial will explain how to use a MySQL backend in order to authentication users against your Apache website.
How-To: encrypted partitions over LVM with LUKS — page 3 — install and config
4. Installing the system
How-To: encrypted partitions over LVM with LUKS — page 2 — encrypting the partitions
3. Encrypting the partitions
How-To: encrypted partitions over LVM with LUKS
Even though new distros installers tend to support filesystem encryption out of the box, most of the time, it might be interesting to actually understand how...
How-To: copy files over the network and preserve file permissions and informations with ssh and rsync
When copying files over the network, the files informations can be modified.
How-To: Import/Export GPG key pair
This tutorial will show how you can export and import a set of GPG keys from one computer to another. This way, you can sign/encrypt the same way one differ...
How-To: create a self-signed certificate
This tutorial will explain how to create a self-signed certificate that you will be able to use with apache in order to provide ssl support.
How-To: Connect to a Cisco VPN with vpnc
This tutorial will show how-to connect to a Cisco VPN Concentrator using vpnc.
How-To: Monitor your servers with SNMP and Cacti — page 3
3. Adding new devices to cacti
How-To: Monitor your servers with SNMP and Cacti — page 2
Now that we have our snmp server up and running, we are going to install cacti to manage the snmp server in our network.
How-To: Monitor your servers with SNMP and Cacti
SNMP (Simple Network Management Protocol) is a protocol for managing networks. Each managed entity in the network will run an snmp server (snmpd) which is go...
How-To create a MySQL database and set privileges to a user
MySQL is a widely spread SQL database management system mainly used on LAMP (Linux/Apache/MySQL/PHP) projects.
How-To set up a LDAP server and its clients — page 2
2. Configuring the clients
How-To set up a LDAP server and its clients
LDAP (Lightweight Directory Access Protocol) allows central user, group, domain….. authentication, information storage …
Secure your SSH server with Public/Private key authentification — page 3
4. Disabling Authentication by password
Secure your SSH server with Public/Private key authentification — page 2
2. Adding the public key to the authorized key
Secure your SSH server with Public/Private key authentification
Open SSH is the most widely used SSH server on Linux. Using SSH, one can connect to a remote host and gain a shell access on it in a secure manner as all tra...
AIDE: Advanced Intrusion Detection Environment
AIDE is an Intrusion Detection System (IDS). Which means that AIDE is not a tool to prevent an intrusion but is actually here to report that an intrusion mig...
Iptables: How-to Share your internet connection — page 4
4. Using iptables’script
Iptables: How-to Share your internet connection — page 3
3.3. Defining custom chains
Iptables: How-to Share your internet connection — page 2
3. Iptables Script
Iptables: How-to Share your internet connection
iptables is a command line tool which allow system administrators to configure Linux packet filtering ruleset.
Secure your Apache2 with mod-security — page 3
4. mod-security filter examples
Secure your Apache2 with mod-security — page 2
3. Adding Filtering Rules
Secure your Apache2 with mod-security
This article will show how-to install, configure and set up apache’s mod-security module on a debian based system. This was done on Ubuntu Dapper and should ...