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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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Bare metal deployment with OpenStack

02.08.2021

Home » Archive » 2021 » Issue 64: Bare... »

and Service Manager) are used to deploy an operating system on a node. OSISM [3], the deployment and lifecycle management framework, installs and configures all the required OpenStack components on that node so

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Real-time log inspection

02.02.2021

Home » Archive » 2021 » Issue 61: Secur... »

the configuration file that I created, replacing the top stanza with my specific Apache logfile format. Listing 3 log_format in Config File # 68.XXX.XXX.XXX - - [22/Nov/2020:11:03:36 +0100] "GET /wp

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A smoke-jumping admin's best friend

09.04.2019

Home » Archive » 2019 » Issue 50: Bpfilter »

. Figure 1: Ncurses-based menuconfig (Wikipedia, CC BY-SA 3.0). Another option is Newt [22], a programming library that focuses on color TUIs (Figure 2) and uses a widget approach, making programming

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Shell practice: Introduction to the sed stream editor

09.08.2015

Home » Archive » 2015 » Issue 28: SSD RAID »

quotes ('). The short shell script in Listing 3 shows how to handle variables by searching through the sample file and outputting the matching lines. Figure 22 shows the result. Listing 3 search

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