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19%
Open source multipoint VPN with VyOS
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Photo by Damon Lam on Unsplash
and a public address. The device must take care of its own security, but a firewall ruleset for the public interface is straightforward: Allow UDP port 500 to negotiate security parameters of the VPN tunnel
19%
SMART storage device monitoring
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Sk Design, Fotolia.com
and Pennsylvania State University examined SSD failures in data centers [3]. Over nearly three years they examined about 500,000 SSDs from five very large data centers and several edge data centers. The drives were
19%
Implement your own MIBs with Python
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
scarce until 2013. With the Python module included with Net-SNMP, which consists of 2,500 lines of C code, you could implement SNMP clients but not agents. SourceForge, on the other hand, had a Python
19%
Darshan I/O analysis for Deep Learning frameworks
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Photo by Michaela Murphy on Unsplash
of open and stat operations, as well as a number of lseek operations – perhaps 7,500. Although there doesn't appear to be a noticeable number of mmap or fsync operations, if Darshan puts them in the chart
19%
Nine home clouds compared
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © inertia@intuitivmedia.net
-to-medium-sized companies with up to 500 ownCloud users, there is also a special offer of the Univention Corporate Server (UCS), which is installable via the App Center and can be purchased via Univention partners
19%
Discovering indicators of compromise
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Photo by Jakob Owens on Unsplash
who monitors Fortune 500 banks, as well as large oil companies. He showed me how many of these organizations still use older Windows and Linux systems to provide essential banking services and control
19%
Application virtualization with Docker
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Oleksiy Mark, 123RF.com
the "ExecStart=/usr/bin/docker" line to include the options --storage-opt dm.loopdatasize=500GB --storage-opt dm.loopmetadatasize=10GB At this point, note that the use of loopback devices instead of only
19%
Enterprise resource planning and customer relationship management with open source
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
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of developers, and an installed base of about 6,500 ERP system environments. Figure 5: Openbravo consistently wins awards for the most innovative open source ERP
19%
Useful NFS options for tuning and management
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © gortan123, 123RF.com
is typically 1500 (1,500 bytes per frame), but this can be changed fairly easily. For the greatest effect on NFS performance, you will have to change the MTU on both the NFS server and the NFS clients. You
19%
Roll out hybrid clouds with Ansible  automation
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © markovka, 123RF.com
in the internal VPC needs the VPN port (for OpenVPN, port 1194/UDP; for IPsec with NAT traversal, ports 500/UDP and 4500/UDP). To allow the admin to access the VM itself, SSH access is also required (i.e., incoming

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