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Supercharge your software upgrade routine

05.08.2024

Home » Archive » 2024 » Issue 82: Sover... »

: curl git pkg-config 0 upgraded, 3 newly installed, 0 to remove and 1 not upgraded. Need to get 3,409 kB of archives. After this operation, 19.5 MB of additional disk space will be used. Get:1 http

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Encrypted backup with Duplicity

11.04.2016

Home » Archive » 2016 » Issue 32: Measu... »

in the python-cryptopp package) Also, under certain circumstances, you might need other libraries for accessing cloud services. If you want Duplicity to store your backups on Amazon S3, you will need Boto

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Better monitoring for websites and certificates

28.07.2025

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

--serial 05:0e:50:04:eb:b0:35:ad:e9:d7:6d:c1:0b:36:d6:0e:33:f1--signature-algorithm1.2.840.10045.4.3.2--issuer-o Let's Encrypt--pubkey-algorithm rsa--pubkey-size 256 This check would give you a pretty good

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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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Tools for hardware diagnostics under Windows

26.01.2025

Home » Archive » 2025 » Issue 85: Monit... »

for disk diagnostics, delivering a full set of data and values related to hard and solid state drives (Figure 3). Besides the current S.M.A.R.T. status, the program displays the temperature, speed, write

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Identify malicious traffic with Maltrail

26.03.2025

Home » Archive » 2025 » Issue 86: Data... »

Lead Image © Andrea De Martin, 123RF.com

. In this case, the sensor sends messages by the User Datagram Protocol (UDP) to the remote server. For an initial impression of Maltrail, the developers offer an online demo [3]. Maltrail is not particularly

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Overview of cloud platforms and appliances

30.11.2025

Home » Archive » 2010 » Issue 2: Backup... »

, your scaling options are virtually unlimited, and you can add Content Delivery Networks (CDN). As an example, SlideShare [1] integrates document downloads and Flash file hosting with Amazon S3 and Cloud

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History and use of the mail utility

05.12.2014

Home » Archive » 2014 » Issue 24: Visua... »

Lead Image © Vlad Kochelaevskiy, fotolia.com

to protect against spam. If you're interested, you can install sSMTP as follows: # apt-get install ssmtp The configuration that is working for me is shown in Listing 3 and lives in the config file /etc

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Routing with Quagga

19.02.2013

Home » Articles »

on routers by Cisco or Juniper. However, Quagga gives IT administrators the option of participating in the world’s largest group of routers – with a Linux computer. The Quagga project originated with the Zebra

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Visualizing data captured by nmon

15.08.2016

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

wound up with approximately 250MB of nmon logfiles. Those who use the nmon Analyser Excel spreadsheet [3] know that you cannot process logs of that size without first having to do some customization

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