http://www.netvouz.com/falko/tag/centos?feed=rss&pg=1 falko's bookmarks tagged "centos" on Netvouz http://www.howtoforge.com/embedding-python-in-apache2-with-mod_python-debian-ubuntu-fedora-centos-mandriva-opensuse This tutorial shows how to install and use mod_python on various distributions (Debian/Ubuntu, Fedora/CentOS, Mandriva, OpenSUSE) with Apache2. mod_python is an Apache module that embeds the Python interpreter within the server. It allows you to write web-based applications in Python that will run many times faster than traditional CGI and will have access to advanced features such as ability to retain database connections and other data between hits and access to Apache internals. falko Tue, 22 Jul 2008 09:46:22 GMT http://www.howtoforge.com/high-availability-storage-with-glusterfs-3.2.x-on-centos-6.3-automatic-file-replication-mirror-across-two-storage-servers This tutorial shows how to set up a high-availability storage with two storage servers (CentOS 6.3) that use GlusterFS. Each storage server will be a mirror of the other storage server, and files will be replicated automatically across both storage servers. The client system (CentOS 6.3 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. falko Sun, 23 Dec 2012 14:02:51 GMT http://www.howtoforge.com/host-based-intrusion-detection-samhain This article describes in some detail how to install Samhain, the host based intrusion detection system. I am not going to ramble on about what host based intrusion detection is or why to use it, as there are plenty of articles already covering those subjects. This article is just to show you how to get Samhain up and running in a client / server configuration with a couple bells and whistles thrown in for fun. falko Wed, 19 Jan 2011 12:40:12 GMT http://www.howtoforge.com/php_suhosin_centos5.0 This tutorial shows how to harden PHP5 with Suhosin on a CentOS 5.0 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." falko Sun, 05 Aug 2007 09:42:15 GMT http://www.howtoforge.com/how-to-implement-domainkeys-in-postfix-using-dk-milter-centos5.1 Domainkeys is "a method of e-mail authentication. Unlike some other methods, it offers almost end-to-end integrity from a signing to a verifying Mail Transfer Agent (MTA). In most cases the signing MTA acts on behalf of the sender, and the verifying MTA on behalf of the receiver. DomainKeys is specified in Historic RFC 4870, which is obsoleted by Standards Track RFC 4871, DomainKeys Identified Mail (DKIM) Signatures." according to the wikipedia. So why a how to on it when there is DKIM? Well domainkeys is still actively being used and is more widely deployed than DKIM, the developer Yahoo still uses it to sign and verify mail although they are contributers to the DKIM standard. falko Tue, 05 Feb 2008 12:36:44 GMT http://www.howtoforge.com/apache2-mod_ruby-with-ispconfig-2.2.20-and-above Starting with version 2.2.20, ISPConfig has built-in support for Ruby. Instead of using CGI/FastCGI, ISPConfig depends on mod_ruby being available in the server's Apache. This article explains how to install mod_ruby on various Linux distributions supported by ISPConfig. falko Sun, 17 Feb 2008 12:48:48 GMT http://www.howtoforge.com/how-to-install-qmailtoaster-centos-5.3 Qmailtoaster is a project that aims to make the installation of Qmail onto RPM based systems a snap. All of the packages are distributed in source RPMs so building the packages for your particular distro and architecture is as easy as running a script or a simple command for each package. The RPMs have all of the needed and commonly asked for patches included so you can have a mail server up and running in about an hour. When it's all complete, you'll have a full Qmail mail server installation ready for just about anything. I personally run Qmailtoaster servers for other companies and ISPs who have tens of thousands of users on their systems. falko Fri, 19 Jun 2009 11:00:22 GMT http://www.howtoforge.com/vmware_server_centos5.0 This tutorial provides step-by-step instructions on how to install VMware Server on a CentOS 5.0 desktop system. With VMware Server you can create and run guest operating systems (virtual machines) such as Linux, Windows, FreeBSD, etc. under a host operating system. This has the benefit that you can run multiple operating systems on the same hardware which saves a lot of money, and you can move virtual machines from one VMware Server to the next one (or to a system that has the VMware Player which is also free). falko Sun, 20 May 2007 11:12:36 GMT http://www.howtoforge.com/how-to-patch-bind-to-avoid-cache-poisoning-debian-etch Dan Kaminsky earlier this month announced a massive, multi-vendor issue with DNS that could allow attackers to compromise any name server - clients, too. These two articles explain how you can fix a BIND9 nameserver on Debian Etch and Fedora/CentOS so that it is not vulnerable anymore to DNS cache poisoning. falko Tue, 29 Jul 2008 09:55:44 GMT http://www.howtoforge.com/how-to-set-up-mysql-database-replication-with-ssl-encryption-on-centos-5.4 This tutorial describes how to set up database replication in MySQL using an SSL connection for encryption (to make it impossible for hackers to sniff out passwords and data transferred between the master and slave). MySQL replication allows you to have an exact copy of a database from a master server on another server (slave), and all updates to the database on the master server are immediately replicated to the database on the slave server so that both databases are in sync. This is not a backup policy because an accidentally issued DELETE command will also be carried out on the slave; but replication can help protect against hardware failures. falko Thu, 18 Feb 2010 13:41:56 GMT