Using DPKG To Install OpenVZ On Debian

DPKG package manager to install OpenVZ, all you need to do is download the OpenVZ components, and let DPKG do the rest. Download the lastest kernel revision level, for your particular DEBIAN distro. For me, this was: linux-image-2.6.18-openvz-k7_028.18.1-2.6.18-12-1_i386.deb Next,go to this URL: Download: * vzctl * vzprocps * vzquota and an OS template cache, […]
Continue reading…


Postfix Monitoring With Mailgraph And pflogsumm On Debian Lenny

These graphs can be accessed with a browser, whereas pflogsumm (“Postfix Log Entry Summarizer”) can be used to send reports of Postfix activity per email.How you can monitor your Postfix mailserver with the tools Mailgraph and pflogsumm. Mailgraph creates daily, weekly, monthly, and yearly graphs of sent, received, bounced, and rejected emails and also of […]
Continue reading…


How To Configure PureFTPd To Accept TLS Sessions On Debian Lenny

FTP is a very insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure. This article explains how to configure PureFTPd to accept TLS sessions on a Debian Lenny server. 1 Preliminary Note a working PureFTPd setup […]
Continue reading…


Hosting Multiple SSL Web Sites On One IP Address With Apache 2.2 And GnuTLS (Debian Lenny)

host multiple SSL-encrypted web sites (HTTPS) on one IP address with Apache 2.2 and GnuTLS on a Debian Lenny server. For more information on why this couldn’t be done prior to OpenSSL 0.98g or with GnuTLS please refer to I will mention that Virtual Hosting SSLs on the same IP address has 1 or […]
Continue reading… Hijacking System Calls For Hardening PHP – Debian Lenny And Squeeze

Library that integrates with the PHP interpreter and intercepts and manipulates the system calls provided by libc6. It replace the execve() syscall with a custom function which does extra sanity checking in order to prevent that an attacker could execute arbitrary code on the system exploiting a vulnerability in a web-based application (such as a […]
Continue reading…


How To Save Traffic With Lighttpd’s mod_compress (Debian Squeeze)

Describe how to configure mod_compress on a Lighttpd web server (on Debian Squeeze). mod_compress allows Lighttpd to compress files and deliver them to clients (e.g. browsers) that can handle compressed content which most modern browsers do. With mod_compress, you can compress HTML, CSS, Javascript, text or XML files to approx. 20 – 30% of their […]
Continue reading…