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21.01.2021

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1992 i486DX2 2:1 clock multiplier, 40/20, 50/25, 66/33 speeds; L2 on MB Mar 1994 i486DX4 3:1 clock multiplier, 75/25, 100/33 speeds; 16KB L1 cache on-die, L2

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Building a port scanner in Python

28.07.2025

Home » Archive » 2025 » Issue 88: 5 Net... »

Code, navigate to the Extensions view by clicking on the Extensions icon in the activity bar or by pressing Ctrl+Shift+X and then search for Pylance and install it. This extension provides rich

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Attacks on HTTPS Connections

13.06.2016

Home » Archive » 2016 » Issue 33: IPv6... »

supported by Chrome since Chromium 12 and Firefox from version 32. Safari and Internet Explorer have not previously supported pinning. Microsoft is considering whether to introduce it. Until then, IE users

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The practical benefits of network namespaces

15.08.2016

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

: Asymmetrical routing can be relatively easily avoided with namespaces. In practice, virtual veth<x> network devices are fairly typical for network namespaces. Whereas a physical device can only exist

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Safeguard and scale containers

05.12.2016

Home » Archive » 2016 » Issue 36: Autom... »

Since the release of Docker [1] three years ago, containers have not only been a perennial favorite in the Linux universe, but native ports for Windows and OS X also garner great interest. Where

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The next generation of Internet connectivity

30.11.2025

Home » Archive » 2011 » Issue 3: Are yo... »

:%02x%02x\n' 19 83 20 235 Note that 6to4 relays (the machines that handle your traffic) use the anycast address of 192.88.99.1 (2002:c058:6301::), so finding out who is actually handling your traffic

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URL Tricks with htaccess

02.02.2012

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for this example: Order Deny,Allow Deny from All Allow from 12.12.12.12 Allow from 23.23.23.23 Allow from 34.34.34.34 This example denies access to everybody except the IPs listed, which follows the very sensible

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More than password protection, htaccess has you covered

30.11.2025

Home » Archive » 2012 » Issue 08: FreeNAS »

specified IP addresses and demand a password, but for simplicity, my .htaccess looks like the following: Order Deny,Allow Deny from All Allow from 12.12.12.12 Allow from 23.23.23.23 Allow from 34

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Mailman 3.0 – a long time coming

08.10.2015

Home » Archive » 2015 » Issue 29: Rescu... »

is a professional software tool, and the fan base appreciates its solid operating principles. Version 1.0 was released in mid-1999 [1], followed by 2.0 in 2000. The latest stable branch 2.1 appeared about 12 years ... Mailman 3.0 is a new major version, released 15 years after version 2.0. We put the new version through its paces and explain the installation procedure and new features.

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Automate CentOS and RHEL installation with PXE

02.02.2021

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

--nameserver=10.42.0.10,10.42.0.11 12 # Root password 13 rootpw --iscrypted 14 # Run the Setup Agent on first boot 15 firstboot --enable 16 # Do not configure the X Window System 17 skipx 18 # System

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