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8%
Using the MQTT IoT protocol for unusual but useful purposes
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Heiko Küverling, 123RF.com
that a message will arrive exactly once (Level 2). As you can see in Figure 1, the three Quality of Service (QoS) levels are increasingly communicative: QoS Level 2 requires a fourway handshake between the client
8%
Monitoring IPv6 with Wireshark
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © Suzanne Tucker, 123RF.com
,536 seconds), but RFC 4861 limits the maximum to 9,000 seconds (2.5 hours). A value of 0 means that the router is not a default router and should not be entered in the default router list. The router lifetime
8%
Network simulation with GNS3
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © Joseasreyes, 123RF.com
of application. Common Open Research Emulator (CORE) [2] takes advantage of the namespace functionality of Linux containers. Project maintainer Eriberto Mota regards the environment as a "Network lab in a box
8%
Securing containers with Anchore
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © loiic, Fotolia.com
's popular images and listed on the CVE website [1] might surprise you. According to a new report from the venerable Snyk [2], who knows about all things security focused, the top 10 most popular container
8%
Virtual environments in Windows Server
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Federico Caputo, 123RF.com
the release of the Technical Preview  [2]. Virtual Containers with Docker A virtualization container behaves similarly to a virtual machine (VM). Unlike conventional VMs, however, a container shares most
8%
Samba pitfalls in daily operation
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © lightwise, 123RF.com
ReplicaSync failed (58, 'WERR_BAD_NET_RESP') File "/usr/lib/python2.7/dist-packages/ samba/netcmd/drs.py", line 389, in run drs_utils.sendDsReplicaSync(server_bind, server_bind_handle, source_dsa_guid, NC, req
8%
Setting up Windows clients with Chef
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © Sebastian Kaulitzki, 123RF.com
; however, you could also use VirtualBox. Start by setting up an Ubuntu-based virtual machine (VM). The Chef server is only available on Unix-style operating systems; the download page [2] offers a choice
8%
Setting up MariaDB replication with the help of XtraBackup
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Kran Kanthawong, 123RF.com
in Oracle's MySQL and MariaDB. For this article, I used MariaDB 10.1 on Ubuntu 16.04 and XtraBackup 2.4 by Percona, which also works on other Linux distributions and with MySQL. A prerequisite
8%
Optimizing Windows Server 2016 performance
02.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © Kirsty Pargeter, 123RF.com
is that it should not be too frequently greater than 2 . However, if the CPU usage is relatively low on average, this value plays only a minor role. A constantly high CPU utilization rate clearly shows
8%
Software-defined networking in OpenStack with the Neutron module
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Michael Roder, Fotolia.com
gives it the flexibility to incorporate Open vSwitch [1], MidoNet by Midokura [2], OpenContrail [3] by Juniper, and other SDN solutions – Neutron has a plugin for almost all SDN approaches on the market

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