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Wednesday, 10 March 2010 11:12 |
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How To Harden PHP5 With Suhosin On CentOS 5.4
This tutorial shows how to harden PHP5 with Suhosin on a CentOS 5.4 server. From the Suhosin project page: "Suhosin
is an advanced protection system for PHP installations that was
designed to protect servers and users from known and unknown flaws in
PHP applications and the PHP core. Suhosin comes in two independent
parts, that can be used separately or in combination. The first part is
a small patch against the PHP core, that implements a few low-level
protections against bufferoverflows or format string vulnerabilities
and the second part is a powerful PHP extension that implements all the
other protections." Read more: |
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Tuesday, 09 March 2010 11:47 |
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VBoxHeadless - Running Virtual Machines With VirtualBox 3.1.x On A Headless Fedora 12 Server
This guide explains how you can run virtual machines with Sun VirtualBox 3.1.x
on a headless Fedora 12 server. Normally you use the VirtualBox GUI to
manage your virtual machines, but a server does not have a desktop
environment. Fortunately, VirtualBox comes with a tool called
VBoxHeadless that allows you to connect to the virtual machines over a
remote desktop connection, so there's no need for the VirtualBox GUI. Read more: |
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Tuesday, 09 March 2010 05:55 |
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Wireshark Remote Capturing
This short tutorial is without screenshots but a slightly more
advanced usecase of Wireshark, namely doing the capture on one box and
visualize the captured data in realtime on another box. Read more: |
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Monday, 08 March 2010 11:34 |
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Virtual Hosting With vsftpd And MySQL On Debian Lenny
Vsftpd is one of the most secure and fastest FTP servers for Linux.
Usually vsftpd is configured to work with system users. This document
describes how to install a vsftpd server that uses virtual users from a
MySQL database instead of real system users. This is much more
performant and allows to have thousands of ftp users on a single
machine. Read more: |
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Sunday, 07 March 2010 13:34 |
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Distributed Replicated Storage Across Four Storage Nodes With GlusterFS On Fedora 12
This tutorial shows how to combine four single storage servers (running Fedora 12) to a distributed replicated storage with GlusterFS. Nodes 1 and 2 (replication1) as well as 3 and 4 (replication2) will mirror each other, and replication1 and replication2 will be combined to one larger storage server (distribution). Basically, this is RAID10 over network.
If you lose one server from replication1 and one from replication2,
the distributed volume continues to work. The client system (Fedora 12
as well) will be able to access the storage as if it was a local
filesystem. GlusterFS is a clustered file-system capable of scaling to
several peta-bytes. It aggregates various storage bricks over
Infiniband RDMA or TCP/IP interconnect into one large parallel network
file system. Storage bricks can be made of any commodity hardware such
as x86_64 servers with SATA-II RAID and Infiniband HBA. Read more: |
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