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26%
Port-based access protection with NAP and 802.1X
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© PAnja Kaiser, Fotolia.com
of NAP are available for access protection, including: DHCP, VPN, IPSec, Terminal services (e.g., Remote Desktop Services), and IEEE 802.1X devices. This article relates to access via wired 802.1X devices ... Mobile devices require special security considerations. In combination with IEEE 802.1X, Network Access Protection can ensure that mobile devices maintain the necessary security standards before they ... NAP with 802.1X ... Port-based access protection with NAP and 802.1X
26%
Open source multipoint VPN with VyOS
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Photo by Damon Lam on Unsplash
: Router A will ask the central router for router B; with that information in hand, router A sets up a new VPN tunnel between A and B, so traffic can start flowing (Figure 1), automatically and without conf ... The VyOS Linux distribution puts network routing, firewall, and VPN functionality together and presents a fully working dynamic multipoint VPN router as an alternative or addition to a Cisco DMVPN
25%
Managing virtual infrastructures with oVirt 3.1
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Kheng Ho Toh, 123RF.com
based on Windows. Bye-Bye Windows Although the Red Hat developers ported all the components of the management component, RHEV-M, from C# to Java in RHEV 3.0 [1], use of the Administrator Console ... Version 3.1 of the oVirt management platform for virtual infrastructures has recently become available. On Fedora 17, the new release is easy to install and deploy. ... oVirt 3.1 ... Managing virtual infrastructures with oVirt 3.1
24%
Hardening mail servers, clients, and connections
03.04.2024
Home »  Archive  »  2024  »  Issue 80: Threa...  » 
Photo by jesse ramirez on Unsplash
to port 22 (i.e., the SSH port). Simple Mail Transfer Protocol (SMTP) ports 25 and 587 should be open. If you also intend to operate with Internet Message Access Protocol (IMAP) on the system, you need ... If you don't want to hand over your mail to a corporation, you have to operate your own mail server. Securing it sensibly involves some effort.
24%
Novell Filr 1.0 tested
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © Illustrator, 123RF.com
/index.jsp Filr download page: https://www.novell.com/products/filr/novell_filr_download.html Filr documentation: http://www.novell.com/documentation/novell-filr1/ Novell Filr 1.0 Web Application User Guide ... Novell Filr 1.0 tested
24%
Admin as a service with sysstat for ex-post monitoring
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Levente Janos, 123RF.com
calculated values for load average. Ex-Post Analysis In this article, I focus on accessing ex-post data (i.e., the state of a system in the past). To access the data for the last two days, sar offers the -1 ... The top, vmstat, and iotop monitoring tools for Linux show the current situation but do not provide any information about the past – which is where sysstat comes into play.
23%
Transcoding optical media in Linux
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Pavol Stredansky
diodes (Figure 1) to ensure downward compatibility. One is responsible for playing back (and recording in the case of burners) CD and DVD media; the other ensures compatibility with Blu-ray media ... We test two candidates for viewing and converting video DVDs and Blu-ray discs, HandBrake and MakeMKV, and point out legal hurdles.
23%
From debugging to exploiting
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © Maksim Kabou, 123RF.com
, a j value of 1,671,723,848 is already far beyond the last item in the vacf array, so the vacf[j-i] = 0 statement is trying to write at address 0xd49039e0. Because this address is far beyond the process ... Kernel and compiler security techniques, together with sound programming practices, fend off memory corruption exploits.
23%
OpenStack workshop, part 2: OpenStack cloud installation
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Anatoly Terebenin, 123RF.com
). Figure 1: An OpenStack standard setup uses at least four networks, each of which has a special role to play. The management network is the network that the physical servers in the Open ... The first article in this workshop looked at the theory behind OpenStack; the second part takes a more hands-on approach: How can you set up an OpenStack cloud on a greenfield site?
22%
Acquiring a Memory Image
20.05.2014
Home »  Archive  »  2014  »  Issue 20: IPv6...  » 
Lead Image © lightwise, 123RF.com
e37654:disk-0 iqn.2008-02.com.f-response.cr0wn-d00e37654:disk-1 iqn.2008-02.com.f-response.cr0wn-d00e37654:vol-c iqn.2008-02.com.f-response.cr0wn-d00e37654:vol-e iqn.2008-02.com ... Be ready before disaster strikes. In this article we describe some tools you should have on hand to obtain a memory image of an infected system.

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