CentOS

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Building A Central Loghost On CentOS And RHEL 5 With rsyslog

Building A Central Loghost On CentOS And RHEL 5 With rsyslog

Gathering log messages is important. In a lot of situations you'll want to store all entries of logfiles on another server. If a server crashes or gets hacked you want to be able to browse through logfiles from this machine and you want to be sure these log files are not altered in any way. This can be accomplished using a central logserver that receives messages from all other hosts. This howto describes rsyslog putting log messages in one file per day per remote host. Rsyslog is the current standard in RHEL6 and available as a package in the current package streams in RHEL 5.5 (and CentOS 5.5). Setting up rsyslog is pretty simple. It all comes down to a single config file but (there is always a but) every setting needs some planning.

WiKID + OpenLDAP + Freeradius Howto

WiKID + OpenLDAP + Freeradius Howto

I installed Openldap and freeradius on one (virtual) server and WiKID on another. We believe that this separation of duties is good security policy. In a way it also makes the setup easier because both WiKID and Freeradius listen on port 1812 of the localhost. Both servers are running Centos5.

Installing Honeyd 1.5c And Arpd 0.2 Under CentOS 5 (With gcc 4.x)

Installing Honeyd 1.5c And Arpd 0.2 Under CentOS 5 (With gcc 4.x)

This tutorial shows how you can install your honeypot by using Honeyd (Virtual Honeypot). Honeyd is a small daemon that creates virtual hosts on a network. The hosts can be configured to run arbitrary services, and their personality can be adapted so that they appear to be running certain operating systems.

Setting Up An Active/Active Samba CTDB Cluster Using GFS & DRBD (CentOS 5.5)

Setting Up An Active/Active Samba CTDB Cluster Using GFS & DRBD (CentOS 5.5)

This article explains how to set up an Active/Active Samba CTDB Cluster, using GFS and DRBD. Prepared by Rafael Marangoni, from BRLink Servidor Linux Team. We use two nodes, both are active nodes, and the requests are loadbalanced. To replicate data between the nodes we use DRBD. To active/active cluster, we must use a ClusterFS (in this case GFS), to make the two nodes to write on the DRBD resource at same time.

How To Set Up An Active/Passive PostgreSQL Cluster With Pacemaker, Corosync, And DRBD (CentOS 5.5)

How To Set Up An Active/Passive PostgreSQL Cluster With Pacemaker, Corosync, And DRBD (CentOS 5.5)

This article explains how to set up (and monitor) an Active/Passive PostgreSQL Cluster, using Pacemaker with Corosync and DRBD. We use two nodes, one active (that answers requests from apps) and the other on passive mode. If the active server is down, the passive one will automatically take its position (being the active node). We are using the CentOS 5.5 (64bits) distribution, but it will probably work on Fedora (and Red Hat, for sure) as well.

Nginx Catch-All Host As Front End To Apache For ISPConfig 2 On CentOS 5

Nginx Catch-All Host As Front End To Apache For ISPConfig 2 On CentOS 5

Nginx (pronounced “engine X”) is a lightweight, high-performance Web server/reverse proxy and e-mail (IMAP/POP3) proxy, licensed under a BSD-like license. It runs on UNIX, GNU/Linux, BSD variants, Mac OS X, Solaris, and Microsoft Windows. Apache's performance is generally very good as well. However, in a resource-constrained environment , Apache does not necessarily provide optimal performance or resource utilization. One of the “best practice” approaches to reducing the strain on Apache is to let a leaner lighter web server take over the serving of the site's static files (images, javascript, css, etc.), leaving the heavy lifting of serving the dynamic content to Apache. This tutorial shows how you can setup Nginx as front end to apache for ISPConfig 2 On CentOS 5.x.

How To Set Up Kojoney SSH Honeypot On CentOS 5.5

How To Set Up Kojoney SSH Honeypot On CentOS 5.5

Kojoney is a low level interaction honeypot that emulates an SSH server. The daemon is written in Python using the Twisted Conch libraries. In computer terminology, a honeypot is a trap set to detect, deflect, or in some manner counteract attempts at unauthorized use of information systems. Generally it consists of a computer, data, or a network site that appears to be part of a network, but is actually isolated, (un)protected, and monitored, and which seems to contain information or a resource of value to attackers. This tutorial shows how you can compile and install updated version of Kojoney on CentOS 5.5 server.

Installing Nginx With PHP5 And MySQL Support On CentOS 5.5

Installing Nginx With PHP5 And MySQL Support On CentOS 5.5

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can install Nginx on a CentOS 5.5 server with PHP5 support (through FastCGI) and MySQL support.

Setting Up An NFS Server And Client On CentOS 5.5

Setting Up An NFS Server And Client On CentOS 5.5

This guide explains how to set up an NFS server and an NFS client on CentOS 5.5. NFS stands for Network File System; through NFS, a client can access (read, write) a remote share on an NFS server as if it was on the local hard disk.

Install Nginx On CentOS 5.5 With SSL, PCRE, GeoIP, Zlib, Gzip And DAV Support

Install Nginx On CentOS 5.5 With SSL, PCRE, GeoIP, Zlib, Gzip And DAV Support

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can compile and install Nginx on CentOS 5.5 server with SSL, PCRE, GeoIP, Zlib, Gzip and DAV support.

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