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Search results for Monitoring Network Latency With Smokeping (Debian Etch)

Debian

Postfix Monitoring With Mailgraph And pflogsumm On Debian Lenny

Post date: June 15, 2010, 11:06 Category: Miscellaneous Views: 3537 Comments
Tutorial quote: This article describes 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 spam and viruses, if SpamAssassin and ClamAV are integrated into Postfix (e.g. using amavisd-new). 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.
Linux

Custom Monitoring MySQL and SNMP with BixData

Post date: February 3, 2007, 00:02 Category: Software Views: 3960 Comments
Tutorial quote: With BixData you can monitor your servers as well as VMware and Xen. BixData includes pre-built plugins for things like CPU, Memory, Disk, etc. but any good monitoring tool needs to be customizable. BixData includes the basic ability to run scripts and record their exit values, similar to Nagios Plugins. BixData 2.7 adds support for importing data in more complex formats. This allows you to monitor almost anything. I'll go through the steps showing you how to monitor MySQL locally where an agent is installed and then the steps to monitor a device remotely through SNMP. The advantage of BixData is that any data available through a BixAgent works with the standard tools such as the situation room, scoreboards, notifications and the reporting system. All data are stored in standard SQL tables and are easily accessible.
Ubuntu

How to Set up Network Bonding in Ubuntu 6.10

Post date: February 16, 2007, 22:02 Category: Network Views: 6363 Comments
Tutorial quote: Network Bonding, otherwise known as port trunking allows you to combine multiple network ports into a single group, effectively aggregating the bandwidth of multiple interfaces into a single connection. For example, you can aggregate two gigabyte ports into a two-gigabyte trunk port. Bonding is used primarily to provide network load balancing and fault tolerance.
Debian

How to set up an encrypted filesystem in several easy steps

Post date: December 10, 2006, 08:12 Category: Security Views: 4124 Comments
Tutorial quote: There's been a lot of talk lately about encrypted partitions, and Debian is proud to offer a feature to easily create them in the etch installer since beta3. But what about existing systems? This guide walks you through setting up an encrypted partition using cryptsetup and LUKS.
Debian

Monitoring Servers and Clients using Munin

Post date: April 4, 2006, 20:04 Category: Installing Views: 3105 Comments
Tutorial quote: "Munin" means "memory".

Munin the tool surveys all your computers and remembers what it saw. It presents all the information in 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, and quite possibly applications as well. 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 all limited resources.

It uses the excellent RRDTool and is written in Perl. Munin has a master/node architecture in which the master connects to all the nodes at regular intervals and asks them for sdata. 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).
Linux

Cutting the tcp/ip network connection with cutter

Post date: December 13, 2005, 03:12 Category: Network Views: 3618 Comments
Tutorial quote: Recently I came across very powerful and nifty tool (used by one of our Sr. network admin). Just imagine that people in your private network using peer to peer software such as Kazaa, iMesh or others and you want to cut them or just want to cut all ftp connection over my firewall but not all traffic to host.
Ubuntu

Setting Up A PXE Install Server For Multiple Linux Distributions With Ubuntu Edgy Eft

Post date: December 20, 2006, 01:12 Category: Installing Views: 4788 Comments
Tutorial quote: This tutorial shows how to set up a PXE (short for preboot execution environment) install server with Ubuntu 6.10 (Edgy Eft). A PXE install server allows your client computers to boot and install a Linux distribution over the network, without the need of burning Linux iso images onto a CD/DVD, boot floppy images, etc. This is handy if your client computers don't have CD or floppy drives, or if you want to set up multiple computers at the same time (e.g. in a large enterprise), or simply because you want to save the money for the CDs/DVDs. In this article I show how to configure a PXE server that allows you to boot multiple distributions: Ubuntu Edgy/Dapper, Debian Etch/Sarge, Fedora Core 6, CentOS 4.4, OpenSuSE 10.2, and Mandriva 2007.
SGI

Installing IRIX 6.5 Across a Network

Post date: May 21, 2005, 10:05 Category: Installing Views: 7006 Comments
Tutorial quote: Installing across a network may be desirable for a number of reasons, usually speed, convenience (disks/CDROM attached to remote system) or necessity. I've done network installs on O2s, Octanes and Indys; in each case, a remote disk file system contained local copies of all the relevant 6.5 media.
Unix+clones

Command your network with Kaboodle

Post date: June 28, 2005, 09:06 Category: Network Views: 3901 Comments
Tutorial quote: Quite often setting up a local network is much easier than managing it. Even technically challenged users can figure out how to connect a couple of computers and a printer. However, tasks like maintenance, troubleshooting, and remote secure connections require more than just "which-cable-goes-where" knowledge. You need something like Kaboodle, a nifty tool that can help you to manage your local network like a pro.

Kaboodle allows you to visualize your local network, control computers on it via VNC, and connect to other Kaboodle-enabled networks. Kaboodle was developed for Windows, but according to its Web site, it will happily run under Wine on Linux and FreeBSD.
Debian

Stack Smashing Protection for Debian

Post date: June 23, 2006, 22:06 Category: Security Views: 3619 Comments
Tutorial quote: Since we last covered the use of Stack Smashing Protection (SSP) the default compiler for Debian Sid has been upgraded to include it, with no need for custom patching. Read on for a brief demonstration of how it can be used to prevent attacks.

The default C compiler for Sid, which will be used in Etch too, is GCC v4.1. This releasecontains the SSP patch which previously needed to be applied manually (we demonstrated applying this patch for GCC v3.4 a long time ago).

Since the SSP patch is included in the compiler by default it is suddenly a lot easier to start working with it.
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