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13%
Roll out hybrid clouds with Ansible  automation
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © markovka, 123RF.com
port 22/TCP). The same applies to the external gateway computer. Here, the VPN input can then be limited to the local VPN gateways' static IPs – if available. This does not offer very strong protection
13%
Netcat – The Admin’s Best Friend
20.08.2012
Home »  Articles  » 
 
since its inception. These days, it handles IPv6 as well as IPv4 beautifully. Its astounding versatility means that integrating it with scripts is a veritable piece of cake. I have heard it said in fact
13%
Microsoft Exchange replacement
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
Photo by Gabriel Crismariu on Unsplash
is available on GitHub [6] or as a packaged distribution from grommunio's customer repository service [7] or a community repository service [8]. Internally, grommunio uses the Open Build Service [9]. Initially
13%
Tuning I/O Patterns in Fortran 90
04.12.2013
Home »  HPC  »  Articles  » 
3 type rec 4 integer :: x, y, z 5 real :: value 6 end type rec 7 8 integer :: counter 9 integer :: counter_limit 10 integer :: ierr 11 12 type (rec) :: my
13%
Moving your data – It's not always pretty
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
digifuture, 123RF
of many cores and many nodes, so why not use these cores to copy data? There is a project to do just this: DCP [5] is a simple code that uses MPI [6] and a library called libcircle [7] to copy a file
13%
An IP-based load balancing solution
21.07.2011
Home »  CloudAge  »  Articles  » 
 
heartbeat = 1 07 heartbeat_port = 539 08 keepalive = 6 09 deadtime = 18 10 network = direct 11 debug_level = NONE 12 monitor_links = 1 13 syncdaemon = 1 14 virtual webs.test.com { 15 active = 1 16
13%
Sort out your SSH configs
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © saniphoto, fotolia.com
and the other on all IPv6 IP addresses. Listing 1 Checking Open Ports chris@DebianBox:~# lsof -i :22 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sshd 3328 root 3r IPv4 33323 0t0 TCP *:ssh
13%
Setting up MariaDB replication with the help of XtraBackup
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Kran Kanthawong, 123RF.com
, but Debian and Ubuntu installations define max_binlog_size as 100MB. XtraBackup also wants to create a separate file for every InnoDB table, which is enabled by the innodb_file_per_table variable (Listing 3
13%
Retrieving Windows performance data in PowerShell
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © andresr, fotolia.com
Number: 00282-30340-00000-AB9A5 Version: 6.3.9600 The information you read from the operating system can also be formatted and customized. For example, normally only the operating system's most
13%
Accessing Fortran code with Python
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Kheng Ho Toh, , 123RF.com
.multiply_(byref(a), byref(b)) print add.addtwo_(byref(a), byref(b)) The output from the Python code is: $ python3 testfunc.py 8 6 If you like, you can write a simple Python wrapper function for the shareable objects

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