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17%
Network analysis with the Bro Network Security Monitor
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Aleksey Mnogosmyslov, 123RF.com
libraries.) The latest Bro packages are included in source and binary form [3]. On CentOS, I download the Bro full install with: # wget https://www.bro.org/downloads/release/Bro-2.3.1-Linux-x86_64.rpm Next
17%
Monitor your nodes with collectl
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© nobeastsofierce, 123RF.com
has some capabilities [3] that sar does not have. A collection of supporting tools [4] can also help collectl gather and post-process data. Collectl is easy to install if Perl is already installed
17%
pdsh Parallel Shell
08.07.2018
Home »  HPC  »  Articles  » 
using a parallel shell tool. However, for those that might be asking if they can use parallel shells on their 50,000-node clusters, the answer is that you can, but the time skew in the results
17%
History and use of the mail utility
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Vlad Kochelaevskiy, fotolia.com
on a remote server and the resulting text file is about 8,000 lines long, several columns wide, and you don't have an easy way to retrieve it from the remote server. Copying and pasting just won't cut it
17%
Open source monitoring with Zabbix
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Vincentiu Solomon on Unsplash
. Figure 3: Graphs are used for retrospective problem analysis. The services in Zabbix 6.0 are completely new, with powerful features designed for monitoring and alerting with more than 100,000
17%
A DIY HTML Engine
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
© Luca Bertolli, 123RF.com
came with version 1. Developers abridged various features under simple commands to bring about a change in the overall user experience. Table 1: Version Features 0.1–1.0 1.1–2.0 2.1–3
17%
HPC fundamentals
16.08.2018
Home »  Archive  »  2018  »  Issue 46: CMS S...  » 
Lead Image © Kasia biel, 123RF.com
of nodes using a parallel shell tool. However, for those that might be asking if they can use parallel shells on their 50,000-node clusters, the answer is that you can, but the time skew in the results
17%
Microsoft Exchange replacement
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
Photo by Gabriel Crismariu on Unsplash
: It is not based on open standards, and it uses proprietary protocols and APIs like MAPI [3] for internal communication. Clients for Exchange are pre-installed on all Windows, Android, and Apple devices
17%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
on hand; it is available on the web [2]. You will also find it useful to have the current version 1.0.2 [3] of the OCF Resource Agent Developer's Guide , created by Hastexo's Florian Haas. The Developer
17%
HPC Monitoring: What Should You Monitor?
15.01.2014
Home »  HPC  »  Articles  » 
days, then you might be able to capture data about whether a node is alive or dead infrequently, perhaps every 5-15 minutes, or even longer if you like. Checking it once every 3 seconds seems a bit like

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