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Munin - Trac
Munin the monitoring tool surveys all your computers and remembers what it saw. It presents all the information in graphs through a web interface. Its emphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort.
Using Munin you can easily monitor the performance of your computers, networks, SANs, applications, weather measurements and whatever comes to mind. It makes it easy to determine "what's different today" when a performance problem crops up. It makes it easy to see how you're doing capacity-wise on any resources.
Munin uses the excellent RRDTool (written by Tobi Oetiker) and the framework is written in Perl, while plugins may be written in any language. Munin has a master/node architecture in which the master connects to all the nodes at regular intervals and asks them for data. It then stores the data in RRD files, and (if needed) updates the graphs. One of the main goals has been ease of creating new plugins (graphs).
Cacti: The Complete RRDTool-based Graphing Solution
Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality. Cacti provides a fast poller, advanced graph templating, multiple data acquisition methods, and user management features out of the box. All of this is wrapped in an intuitive, easy to use interface that makes sense for LAN-sized installations up to complex networks with hundreds of devices.
www.logwatch.org
Logwatch is a customizable log analysis system. Logwatch parses through your system's logs for a given period of time and creates a report analyzing areas that you specify, in as much detail as you require. Logwatch is easy to use and will work right out of the package on most systems.
Anyterm - Introduction
Have you ever wanted SSH or telnet access to your system from an ?internet desert? - from behind a strict firewall, from an internet cafe, or even from a mobile phone? Anyterm is a combination of a web page and a web server module that provides this acces
Der kleine OpenSSL-Wegweiser - heise Security
Im Gefolge der OpenSSL-Probleme bei Debian verbreitet sich bei Administratoren zunehmend Chaos, Ratlosigkeit und sogar Panik. Lückenhafte und teilweise sogar falsche Informationen tragen genauso dazu bei, wie riskante Update-Prozeduren und mit der hei?en
Preventing SSH Dictionary Attacks With DenyHosts | HowtoForge - Linux Howtos and Tutorials
In this HowTo I will show how to install and configure DenyHosts. DenyHosts is a tool that observes login attempts to SSH, and if it finds failed login attempts again and again from the same IP address, DenyHosts blocks further login attempts from that IP address by putting it into /etc/hosts.deny. DenyHosts can be run by cron or as a daemon. In this tutorial I will run DenyHosts as a daemon.\n\n
DenyHosts | Linux Operating System - Debian, Ubuntu, Fedora, Gentoo, Arch
Whenever you need to left open the port 22 for ssh you machine from every where,but want to prevent Dictionary attacks, you can use DenyHosts to stay protected
The Perfect Server - Ubuntu Hardy Heron (Ubuntu 8.04 LTS Server) | HowtoForge - Linux Howtos and Tutorials
This tutorial shows how to set up an Ubuntu Hardy Heron (Ubuntu 8.04 LTS) based server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of Ubuntu 8.04 LTS, but should apply to the 64-bit version with very little modifications as well.
The Perfect Server - CentOS 5.2 | HowtoForge - Linux Howtos and Tutorials
This tutorial shows how to set up a CentOS 5.2 server that offers all services needed by ISPs and web hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Dovecot POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of CentOS 5.2, but should apply to the 64-bit version with very little modifications as well.
CentOS minimalisieren - Fedorawiki.de
Für einen Server ist eine Installation von CentOS ohne Ballast sinnvoll. Dennoch bringt eine während der Installation auswählbare Minimalinstallation noch sehr viele überflüssige Pakete mit. In Anlehnung an einen Artikel der Zeitschrift Linux-Professionell ("Weniger ist sicherer"; Ausgabe 3/2006, Seite 88ff) wird hier beschrieben, wie im Anschluß an eine minimale Installation das System deutlich schlanker gestaltet werden kann.\nEine virtuelle Maschine bietet eine elegante Möglichkeit, ein neues System zu installieren und dabei mit einem bereits funktionierendem System im Hintergrund zu operieren. Vor allem kann nach der Grundinstallation von CentOS eine Kopie der virtuellen Maschine angelegt werden und die Minimalisierung "am lebenden Objekt" durchgeführt werden. Läuft die virtuelle Maschine nach der Schlankheitskur nicht (mehr), kann auf die Kopie zurückgegriffen werden, ohne erneut eine zeitaufwändige Installationsprozedur durchführen zu müssen. Deswegen wird die Minimalisierung von CentOS anhand einer virtuellen Maschine mit VMware beschrieben.\nDieser Artikel wurde auf der Basis von CentOS 4 (Updates 3 und 4) erstellt.
Ubuntu Server Edition | Ubuntu
The Ubuntu Server Edition - built on the solid foundation of Debian which is known for its robust server installations - has a strong heritage for reliable performance and predictable evolution.
The Art of Capacity Planning | O'Reilly Media
Web-based companies live or die by the ability to scale their infrastructure to accommodate increasing demand. This book is a hands-on and practical guide to planning for such growth, with many techniques and considerations to help you plan, deploy, and manage web application infrastructure. Written by the manager of data operations for the world-famous photo-sharing site Flickr.com, the author offers advice based on years of valuable experience.
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