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A web application with MongoDB and Bottle

14.03.2013

Home » Archive » 2013 » Issue 13: IPv6... »

) The call in line 6 of the survey.py file creates a connection object for communicating with the MongoDB service on the same system on which the web framework is running. Lines 7-8 of Listing 3 then define

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Live migration of virtual machines on Hyper-V

31.10.2025

Home » Archive » 2012 » Issue 12: NAS S... »

, such as an external hard drive, or directly across the network. You can also set up a schedule (Figure 3). Figure 3: Scheduling the replication

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Port Knocking

07.10.2014

Home » Archive » 2014 » Issue 23: 10 Ti... »

5) and for iptables (Listing 6). Your mileage may vary. Listing 6 Iptables Start and Stop Commands start_command = /sbin/iptables -I INPUT -s %IP% -p tcp --dport 22 -j ACCEPT stop

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The practical benefits of network namespaces

15.08.2016

Home » Archive » 2016 » Issue 34: Softw... »

Linux Containers (LXC) [1] and Docker [2], as well as software-defined network (SDN) solutions [3], make extensive use of Linux namespaces, which allow you to define and use multiple virtual

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Asynchronous PostgreSQL

12.09.2013

Home » Archive » 2013 » Issue 16: Docker »

readable. In JavaScript, that would be comparable to the readystatechange event of the XMLHttpRequest object. Listing 6 burn3.pl 01 #!/usr/bin/perl 02 03 use common::sense; 04 use DBI; 05

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Hunt down vulnerabilities with the Metasploit pen-testing tool

28.11.2021

Home » Archive » 2021 » Issue 66: Inci... »

:/usr/sbin:/bin/sh bin:x:2:2:bin:/bin:/bin/sh sys:x:3:3:sys:/dev:/bin/sh (...) reboot; Connection closed by foreign host. Metasploitable runs many more insecure services that an Nmap scan brings to light (Listing 3

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HDF5 and Parallel I/O

17.05.2017

Home » HPC » Articles »

, 5 ) / ( 8, 5 ) } DATA { (0,0): 0, 1, 2, 3, 4, (1,0): 5, 6, 7, 8, 9, (2,0): 10, 11, 12, 13, 14, (3,0): 15, 16, 17, 18, 19, (4,0): 20, 21, 22, 23, 24, (5,0): 25, 26, 27, 28, 29, (6

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Shared Storage with NFS and SSHFS

12.09.2018

Home » HPC » Articles »

. Moreover, you don't need to add or run a special client tool on the client nodes or a special server tool on the storage node; SSH just needs to be active on your system. Almost all firewalls allow port 22

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Shared Storage with NFS and SSHFS

04.10.2018

Home » Archive » 2018 » Issue 47: Findi... »

an alternative that has more security. SSHFS Filesystem in Userspace (FUSE) [3] offer several attractive features. Such filesystems are easy to code because they are in user space (have you tried getting

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Service discovery, monitoring, load balancing, and more with Consul

04.10.2018

Home » Archive » 2018 » Issue 47: Findi... »

", 19 "VERSIONEDCONSULREGISTRATION": "false" 20 }, 21 "retry_join": [ 22 "consul.datacenter-a.internal.myprivatedns.net" 23 ], 24 "server": true 25 } The Amazon

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