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21%
TheSSS: World's Smallest Server Suite
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © zhao lizu, 123RF.com
.blogspot.com/2013/02/4mlinux-firewall.html FTP server VSFTPD ftpd start /etc/vsftpd/vsftpd.conf (symbolic link to noupload.conf or upload.conf) https
21%
Sort out your SSH configs
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © saniphoto, fotolia.com
, you should see the client config file ssh_config, which I'll get to a little later. If you've just installed the SSH server and want to be sure that it's listening, you can use the command lsof -i :22
21%
Building better software on schedule with DevOps
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
© J. Allspaw and P. Hammond 2009
from the United States and 25 percent from Europe, was commissioned by Puppet Labs, IT Revolution Press, and ThoughtWorks. Keep in mind that these companies offer software, publications, and services
21%
IT automation with SaltStack
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Photo by Harry Cunningham on Unsplash
In 2013, we were faced with a move to a new data center, combined with a change in infrastructure – away from classic bare-metal servers to well-dimensioned virtual machines (VMs). Until then
21%
Network virtualization with OpenDaylight
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Juthamas Oonhawat, 123RF.com
of the central significance of OpenFlow, it is also a part of OpenDaylight. OpenDaylight in turn is a software project formed by a group of IT companies that came together in 2013 with the aim of promoting SDN
21%
Finding and recording memory errors
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © lightwise, 123RF.com
of csrows can be found by examining the /sys entries for a memory controller. For example: $ ls -s /sys/devices/system/edac/mc/mc0 The number of elements, labeled csrow<X> (where <X> is an integer
21%
Mesos compute cluster for data centers
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © Artisticco LLC, 123RF.com
-availability concept is very simple for the slaves; they are organized as a farm [11]. In other words, to compensate for the failure of X workers, the Mesos array must have at least N +X slaves, where N is the number
21%
Managing networks in Windows Server vNext
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Shawn Hempel, 123RF.com
of compatible devices: https://technet.microsoft.com/en-us/cloud/dal.aspx Script management for compatible devices (examples): http://blogs.msdn.com/b/powershell/archive/2013/07/31/dal-in
21%
Build a honeypot with real-world alerts
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Bruce Rolff, 123RF.com
Port=words.split('=')[1] 19 20 #count the number of ports keyed by src IP 21 if srcIP: 22 print("srcIP: {} dPort {}".format(srcIP, dPort)) 23 if srcIP not in srcIPs: 24 src
21%
Test JavaScript programs with Karma
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image Photo by Pierre Bamin on Unsplash
in Listing 1 is a good choice. The function there "accidentally" only adds the two numbers if they are equal. Listing 2 shows a suitable test for Jasmine. Listing 1 js/add.js 01 function add(x

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