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17%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
that belong to $ASTRUNDIR, 22 # kill them. 23 if [ "$astcanary_pid" ]; then 24 for i in $astcanary_pid; do ocf_run kill -s KILL $astcanary_pid; done 25 fi 26 27 for dir in $ASTRUNDIR
17%
HPC Monitoring: What Should You Monitor?
15.01.2014
Home »  HPC  »  Articles  » 
submitted jobs (the peak was around 4:00pm, and the low point was around 6:00-7:00am). Just imagine having that information about your cluster. If you use a charge-back model, you could charge more to submit
17%
Look for file changes and kick off actions with Watchman
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © leksele, 123RF.com
] 20 } 21 ] 22 } 23 ] 24 } The script that performs the rsync operation, sync.sh, will look like Listing 3. Your script might be more complex (e.g., by adding some sort
17%
Secure and seamless server access
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Michael D on Unsplash
of Cloudflare Tunnel is that it supports multiple protocols, including HTTP, HTTPS, SSH, TCP, and UDP, so you can securely access a wide range of applications and services. Also, in the case of HTTP(S), you do
17%
Port Knocking
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © rasslava, 123RF.com
5) and for iptables (Listing 6). Your mileage may vary. Listing 6 Iptables Start and Stop Commands start_command = /sbin/iptables -I INPUT -s %IP% -p tcp --dport 22 -j ACCEPT stop
17%
Testing the Samsung MU-PA500B 500GB SSD
04.10.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
Lead Image © Lucy Baldwin, 123RF.com
of their internal 2.5-inch SATA devices, coming in at a mere 2.3x3x0.5 inches (5.8x7.6x1.3 cm) – smaller than a Post-it note (Figure 1). Available in sizes ranging from 256GB to 2TB, the specimen in our lab is the MU
17%
Develop a simple scanning application with the NAPS2 SDK
27.05.2025
Home »  Archive  »  2025  »  Issue 87: Light...  » 
the application [6], click the Run Code button (typically a Play icon in the top right corner; Figure 3). Alternatively, you can run the project with the command dotnet run
17%
Canonical Offering a Beta Version of a Real-Time Kernel
02.05.2022
Home »  News  » 
 
such as communication and manufacturing, that place a high priority on low latency.  Dan Lynch, Marketing Director at Intel, said of the new release, “Ubuntu 22.04 LTS’s real-time kernel unlocks low-latency use cases
17%
Thrashing the data cache for fun and profit
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Lucy Baldwin, 123RF.com
, 4, 5 }, // row 0 initialized to 1, 2, 3, 4, 5 { 6, 7, 8, 9, 10 }, // row 1 initialized to 6, 7, 8, 9 ... }; // rows 2 onwards initialized to zeros ** int
17%
Roll out hybrid clouds with Ansible  automation
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © markovka, 123RF.com
or which packets can reach the VM. AWS offers its own, rather expensive VPN as a Service (VPNaaS). Therefore, the setup in this article uses its own VPN VM, which is cheaper – or to be more precise, might

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