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Endlessh and tc tarpits slow down attackers

02.02.2021

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

. As surely as night follows day, automated attacks will target the default Secure Shell port (TCP port 22), so I will use SSH as the guinea pig test case with the knowledge that I can move the real SSH service

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S3QL filesystem for cloud backups

09.01.2013

Home » Archive » 2013 » Issue 18: New W... »

Lead Image © stylephotographs, 123RF.com

[12]. The Linux world also has tools for treating Amazon S3 as an rsync target. The best-known tool is probably boto_rsync [13], a Python tool that uses rsync to sync from a local directory to an S3

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File Compression for HPC

10.11.2021

Home » HPC » Articles »

the extension .lz4 to the compressed file, indicating the method of compression. lz4 has 12 compression levels (1 -12 ). For maximum compression, use: $ lz4 -12 file.data You can also enable ultrafast

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Installing and operating the Graylog SIEM solution

13.12.2018

Home » Archive » 2018 » Issue 48: Secur... »

. The pwgen command generates a password and encrypts with sh256sum: pwgen -N 1 -s 100 echo -n | sha256sum The encrypted password is then assigned to the parameter root_password_sha2. Table 1 gives

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Prepare, analyze, and visualize data with R

07.06.2019

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

Lead Image © Buchachon Petthanya, 123RF.com

: Estimate Std. Error t value Pr(>|t|) (Intercept) 517.340 18.270 28.316 < 2e-16 *** wdayThursday -31.046 16.119 -1.926 0.0545 . wdayFriday -116.981 16.122 -7.256 1.08e-12 *** wday

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OCI containers with Podman

06.10.2019

Home » Archive » 2019 » Issue 53: Secur... »

used the example configuration file from the installation help page [6] (Listing 1). As you can see in line 12, the following container image registries are to be searched: docker.io registry

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Safeguard and scale containers

05.12.2016

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

Version: v1 02 kind: Pod 03 metadata: 04 name: nginx 05 spec: 06 containers: 07 - name: nginx 08 image: nginx 09 ports: 10 - containerPort: 80 A replication controller [12], however

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Guarding against social engineering attacks

01.08.2019