PUBLIC MARKS from camel with tags network & server

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.

Box Backup is an open source, completely automatic, on-line backup system. It has the following key features: * All backed up data is stored on the server in files on a filesystem - no tape, archive or other special devices are required. * The server is trusted only to make files available when they are required - all data is encrypted and can be decoded only by the original client. This makes it ideal for backing up over an untrusted network (such as the Internet), or where the server is in an uncontrolled environment. * A backup daemon runs on systems to be backed up, and copies encrypted data to the server when it notices changes - so backups are continuous and up-to-date (although traditional snapshot backups are possible too). * Only changes within files are sent to the server, just like rsync, minimising the bandwidth used between clients and server. This makes it particularly suitable for backing up between distant locations, or over the Internet. * It behaves like tape - old file versions and deleted files are available. * Old versions of files on the server are stored as changes from the current version, minimising the storage space required on the server. Files are the server are also compressed to minimise their size. * Choice of backup behaviour - it can be optimised for document or server backup. * It is designed to be easy and cheap to run a server. It has a portable implementation, and optional RAID implemented in userland for reliability without complex server setup or expensive hardware.

Mail Avenger is a highly-configurable, MTA-independent SMTP server daemon. It lets users run messages through filters like ClamAV and SpamAssassin during SMTP transactions, so the server can reject mail before assuming responsibility for its delivery. Other unique features include TCP SYN fingerprint and network route recording, verification of sender addresses through SMTP callbacks, SPF (sender policy framework) as a general policy language, qmail-style control over both SMTP-level behavior and local delivery of extension addresses, mail-bomb protection, integration with kernel firewalls, and more.

Typical Scenario: You have a web server that serves your domain. You write a simple script to restart apache each night and pipe the logs off to your analyzer. It works. ISP/Hosting Scenario: Each server hosts many domains. You may also have load balanced servers (multiple machines) serving each domain. A tool like this is necessary to: 1. collect all the log files from each server 2. split the logs based on the virtual host(s) 3. discard invalid entries (phishing, referrer spam, etc) 4. sort them into chronological order 5. feed logs into analyzer 6. do something with the raw logs (compress, save to vhost dir, etc) [edit]

Openfiler is a powerful, intuitive browser-based network storage software distribution. Openfiler ScreenshotsOpenfiler delivers file-based Network Attached Storage and block-based Storage Area Networking in a single framework. Openfiler is built on the rPath Linux metadistribution and is distributed as a stand-alone Linux distribution. The entire software stack interfaces with third-party software that is all open source. File-based networking protocols supported by Openfiler include: NFS, SMB/CIFS, HTTP/WebDAV and FTP. Network directories supported by Openfiler include NIS, LDAP (with support for SMB/CIFS encrypted passwords), Active Directory (in native and mixed modes) and Hesiod. Authentication protocols include Kerberos 5. Openfiler includes support for volume-based partitioning, iSCSI (target and initiator), scheduled snapshots, resource quota, and a single unified interface for share management which makes allocating shares for various network file-system protocols a breeze.

Globule is a third-party module for the Apache Web server that allows a given server to replicate its documents to other Globule servers. It takes care of maintaining consistency between the replicas, of monitoring the servers, and of automatically redirecting clients to one of the available replicas. Globule also supports the replication of PHP documents. It runs on Unix and Windows systems.

Xen is great. But installing more than one network card became a pain when I tried it the first time. There are some documents describing the principle but I was unable to find a real life example somewhere else. So this is a summary about how it works here now. Using a bridge for a Dom is generally a good idea but then all packets traversing the bridge can be intercepted by any Dom that is using the same bridge. Having a single network card in a Xen landscape also means that theoretically each Dom would be able to sniff all packets traversing this single network card including packets to and from other Doms. A solution is to have more than one network card attached to Xen using a single network card for a single dom. The scenario described here has a server with 3 network cards installed. The first card should be used to access Dom0 and some other DomNs while the second and third network card should be used to purely access Dom1 rsp. Dom2. The Dom configuration file just needs to select the appropriate bridge for each dom.

The eBox platform will effectively and easily help you managing the advanced services for your corporate network. Designed with extensibility in mind it offers, among others, these modules: Firewall, Transparent proxy, Traffic shaping, VPN’s, Content filter, NTP Server, Users and groups, Mail server… more modules!

ClarkConnect - Server and Gateway - Linux Small Business Server SBS

Pandora watchs your systems and applications, and allows to know the status of any element of that systems. Pandora could detect a network interface down, a defacement in your website, memory leak in one of your server app, or the movement of any value of the NASDAQ new technology market. If you want, Pandora could sent a SMS message when your systems fails... or when Google value low below US$ 33.

Hyperic HQ is the robust IT management platform and web-based portal that lets you manage your systems, services, servers, and applications - and it's freely available under an open source license, the GNU GPL. Hyperic HQ Open Source features monitoring, alerting, auto- discovery, auto-inventory, performance monitoring over time, and the ability to determine the health of your IT environment with pinpoint accuracy. The Enterprise Subscription adds support, automated updates, and a few features.

This tutorial shows how to install and configure the Zenoss network monitoring tool on a Ubuntu 6.06 system. Zenoss is a free open-source tool that allows you to monitor servers, applications, networks, power, etc. regarding their configuration, availability, performance, and so on. It can also alert you by email if it finds inappropriate actions.

Load Test Conductor provides ability to create and run load/stress tests in a easy and consistent manner. It also captures CPU utilization, network utilization of the Load Test Client as well as App Server and log files.

ZABBIX offers advanced monitoring, alerting and visualisation features today which are missing in other monitoring systems, even some of the best commercial ones

CPAINT (Cross-Platform Asynchronous INterface Toolkit) is a true AJAX (Asynchronous JavaScript+XML) and JSRS (JavaScript Remote Scripting) implementation that supports both PHP and ASP/VBscript. CPAINT provides you the code required to implement AJAX and JSRS on the back-end, while the returned data is manipulated, formatted, and displayed on the front-end in JavaScript. This allows you to build web applications that can provide nearly real-time feedback to the user, including nearly real-time data updates. (Nearly real-time = within 1-2 seconds, depending on network latency, server load, and client computing power.)