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Vagrant, Serf, Packer, and Consul create and manage development environments
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © 36clicks, 123RF.com
these base images "boxes." Prebuilt boxes can be downloaded free of charge via the community collection on Vagrantbox.es [3] (Figure 1) or from the Vagrant Cloud powered by HashiCorp [4]. The latter provides
13%
Security after Heartbleed – OpenSSL and its alternatives
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © Ilya Masik, fotolia.com
? Actually, warning voices were heard for some time, particularly at the FOSDEM 2014 conference [3] (Figure 2). Figure 2: At FOSDEM 2014, BSD developer Poul
13%
OpenStack Trove for users, sys admins, and database admins
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © cheskyw, 123RF.com
If you use Ceph and are dissatisfied with its performance for databases, you should look for alternatives. Many solutions such as Quobyte [2] and StorPool [3] advertise significantly lower latencies
13%
Monitoring in the Google Cloud Platform
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
Lead Image © Maksym Chornii, 123rf.com
Installing the Ops Agent :> agents_to_install.csv && echo '"projects/playground-gs/zones/europe-west3-c/instances/test-vm1","[{""type"":""ops-agent""}]"' > agents_to_install.csv && curl -sSO https://dl
13%
Software-defined networking for the future
04.04.2023
Home »  Archive  »  2023  »  Issue 74: The F...  » 
Photo by Leio McLaren on Unsplash
and hardware, network virtualization primarily means the separation of data and control paths. Several higher levels are implemented in the network, from which the underlying switches and routers (Layers 2 and 3
13%
Distributed MySQL with Vitess
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
Lead Image © Kheng Ho Toh, 123RF.com
, such as Amazon Simple Storage Service (S3), from where it is then mounted directly through an HTTP link. This process reduces the load on the application and is generally faster for clients because storage can
13%
Automation with Chef
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Photo by Pablo Bustos on Unsplash
necessary. Components A typical Chef environment contains different components depending on the desired scope [3]. The minimum setup that will let you proceed is the Chef Infra Client, which plays the role
13%
Exploring dhcpy6d, a DHCP server for IPv6 networks
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Paul Herbert, 123RF.com
with the client; 547 with the server). Several options are available for DHCP in IPv6, including Dibbler [2], Internet Systems Consortium (ISC) DHCPv6 [3], and WIDE-DHCPv6 [4], and each has a slightly different
13%
Safely integrating and running Office 365
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Matty Sysmons, 123RF.com
addresses [3] for the Office 365 servers in your exception lists and trusted subnets for the firewalls. Load balancers often cause problems in this context because connections to Office 365 via the firewall
13%
Linux nftables packet filter
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
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The Linux kernel already contains a variety of packet filters, starting with ipfwadm and followed by ipchains and iptables. Kernel 3.13 saw the introduction of nftables [1], which uses the nft tool

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