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17%
Netcat – The admin's best friend
31.10.2025
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© Dmitry Rukhlenko, 123RF.com
seconds, for example: # nc -p 16000 -w 30 examplehost.tld 22 If firewalling is in place and you need to originate your connection from a specific IP address to open a port, then you can enter: # nc -s 1.2.3
17%
Server Virtualization with VirtualBox
18.09.2012
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2 apache2-mpm-prefork apache2-utils apache2.2-bin \ apache2.2-common apache2-doc apache2-suexec libapache2-mod-php5 libapr1 \ libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap libapr1
17%
Monitoring Cloud Service Charges
17.08.2011
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being used. It doesn’t matter what platform you use: If it’s pay as you go, you’ll want to monitor it to prevent your $1,000-a-month bill turning into $10,000 a month. In the tradition of programmers
17%
HDF5 with Python and Fortran
21.03.2017
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" ! Dataset name 010      CHARACTER(LEN=8), PARAMETER :: groupname = "subgroup" ! Sub-Group 1 name 011      CHARACTER(LEN=9), PARAMETER :: groupname3 = "subgroup2" ! Sub-Group 3 name 012      ! Dataset 2 name 013
17%
The top three SSH tricks
14.08.2017
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-A INPUT -p tcp -s [IP address of allowed server] --dport 22 -j ACCEPT on the server to which you want to SSH. Trick 2: Copying Files Securely The SSH protocol also includes Secure Copy (SCP
17%
Chronicles
30.05.2021
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Lead Image © Maxim Kazmin, 123RF.com
can't be bothered to do what's right, although it's your responsibility to be sure they do. That sounds a lot like a classic catch-22 situation. Although, I never read the book or saw the movie, I
17%
Modularize websites with Web Components
09.04.2019
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Lead Image © Andrey Prokhorov, fotolia.com
. The AnotTitle class resolves the user-defined element in line 11 of Listing 4. The design pattern for is used again when creating the Web Components. In line 9, the template uses 3
17%
Gatling load-testing tool
03.02.2022
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Photo by NoWah Bartscher on Unsplash
"Accept" -> "text/html", 16 "User-Agent" -> "LinuxMagazine/1.0.1", 17 "Accept-Encoding" -> "gzip, deflate", 18 "Connection" -> "keep-alive", 19 "DNT" -> "1" ) 20 21 // http connector 22
17%
Using Expect scripts to automate tasks
31.10.2025
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© Kheng Ho Toh, 123RF.com
conservatively originally 21 if {$force_conservative} { 22 set send_slow {1 .1} 23 proc send {ignore arg} { 24 sleep .1 25 exp_send -s -- $arg 26 } 27 } 28
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Backup and replicate VMs on VMware ESXi
13.06.2016
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Lead Image © urbanhearts, fotolia.com
the option --backup-vms=VM1,VM2,VM3, which defines which VMs you want XSIBackup to replicate. Additionally, you can define whether the backup solution should overwrite existing files or only add changed data

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