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09.12.2021

Home » HPC » Articles »

, I want to mention briefly which tools can encrypt. Disclaimer: I’m not a security expert, so I can’t judge the strength of the encryption. In this article, I also offer some advice with respect

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Creating a redundant array of inexpensive links

10.06.2015

Home » Archive » 2015 » Issue 27: Fault... »

PREROUTING -i \ -j CONNMARK --restore-mark --nfmask 0xffffffff --ctmask 0xffffffff 02 iptables -t mangle -A PREROUTING -i \ -j CONNMARK -p tcp --dport 80 -m conntrack

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FreeBSD Version 10 released

20.03.2014

Home » Archive » 2014 » Issue 19: Perim... »

to problems that were largely not remedied until version 7. The next, not quite as radical, upheaval took place with the introduction of virtualization and ZFS on FreeBSD 8 in 2009. The filesystem developed

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Implementing custom security frameworks with Bro

11.10.2016

Home » Archive » 2016 » Issue 35: Persi... »

website [6], include libpcap , OpenSSL, the BIND8 library, libz , Bash, and Python. Installing from source requires additional dependencies, including Swig, Bison, and Flex. I found that each

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I/O benchmarks with Fio

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

format used by Windows and KDE. The following simple call to Fio fio --name=randomread --rw=randread --size=256m sets up a job titled randomread and then executes the job. To allow this to happen, Fio

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Accelerate web applications with Varnish Cache

07.06.2019

Home » Archive » 2019 » Issue 51: Self-... »

Lead Image © Aleksandr Frolov, 123RF.com

a 301 Redirect response to the new HTTPS URL. Listing 1 Redirect from HTTP to HTTPS 01 sub vcl_recv 02 { 03 if (req.http.host ~ "example.com" && 04 req.http.Cookie == "logged_in") 05 { 06

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Application security testing with ZAP in a Docker container

05.02.2019

Home » Archive » 2019 » Issue 49: Anato... »

a family of wasps [2]. Although I'm a fan of Mutillidae, other applications like WebGoat [3], also from OWASP, offer a highly sophisticated and multilayered insecure web application, as well. The most

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Operating systems for the cloud and containers

14.08.2017

Home » Archive » 2017 » Issue 40: Lean... »

. OpenStack, for example, officially designates CirrOS as a testing image in its documentation [8]. CirrOS comes with a number of wizards, which all start with cirros- (Table 1). All commands are shell

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Service mesh for Kubernetes microservices

09.04.2019

Home » Archive » 2019 » Issue 50: Bpfilter »

Lead Image by Ricardo Gomez Angel on Unsplash.com

to address. Run $ istioctl authn tls-check to see that mTLS is successfully configured on all of your services (Figure 8). Figure 8: Checking for m

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Automating deployments on Proxmox with OpenTofu and cloud-init

04.12.2024

Home » Articles »

. Figure 1: A recently created Proxmox 8.2 install. Proxmox offers a web interface that acts as a centralized control panel for a myriad of virtualization-related functions. The main reason to use

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