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Understanding systemd-resolved, Split DNS, and VPN Configuration  View Printable Version 
Sunday, December 20 2020 @ 09:27 PM CST
Contributed by: Linegod

HowtoSo, systemd-resolved is enabled by default in Fedora 33. Most users won;t notice the difference, but if you use VPNs - or depend on DNSSEC, more on that at the bottom of this post - then systemd-resolved might be big deal for you. When testing Fedora 33, we found one bug report where a user discovered that systemd-resolved broke his VPN configuration.

Read the full thing at https://blogs.gnome.org/mcatanzaro/2020/12/17/understanding-systemd-resolved-split-dns-and-vpn-configuration/

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Basic network troubleshooting in Linux with nmap  View Printable Version 
Sunday, February 02 2020 @ 10:00 PM CST
Contributed by: Linegod

HowtoNmap is a complex tool. Check out this short list of Nmap commands that will carry you through basic network troubleshooting


Read the full thing at https://redhat.com/sysadmin/nmap-troubleshooting

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What SPF Resources Are Available Now That OpenSPF.org Is Gone?  View Printable Version 
Thursday, May 16 2019 @ 10:31 PM CST
Contributed by: Linegod

HowtoOut of all emails sent out in December 2018, 57 percent of them were spam. This shows just how big of a challenge spam is and why finding a solution is essential. From 2003, the OpenSPF.org website had become the popular starting point for developers and mail server administrators that were implementing SPF rules.

Read the full thing at https://www.getmailbird.com/what-spf-resources-are-available-now-that-openspf-org-is-gone/

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Seven Surprising Bash Variables  View Printable Version 
Saturday, May 11 2019 @ 02:53 PM CST
Contributed by: Linegod

HowtoContinuing in the series of posts about lesser-known bash features, here I take you through seven variables that bash makes available that you may not have known about.

https://zwischenzugs.com/2019/05/11/seven-surprising-bash-variables/

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Bring Your Old Computer Back to Life With 4MLinux  View Printable Version 
Monday, May 07 2018 @ 09:33 PM CST
Contributed by: Linegod

Howto4MLinux is a lightweight Linux distribution that can turn your old computer into a functional one with multimedia support, maintenance tools and classic games.

Read the full thing at https://itsfoss.com/4mlinux-review/

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Ten Things I Wish I'd Known About Bash  View Printable Version 
Saturday, January 06 2018 @ 10:24 PM CST
Contributed by: Linegod

HowtoRecently I wanted to deepen my understanding of bash by researching as much of it as possible. Because I felt bash is an often-used (and under-understood) technology, I ended up writing a book on it.

Read the full thing at https://zwischenzugs.com/2018/01/06/ten-things-i-wish-id-known-about-bash/

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Why You Should Almost Always Add Swap Space  View Printable Version 
Monday, December 18 2017 @ 10:40 PM CST
Contributed by: Linegod

HowtoWe know that using swap space instead of RAM can severely slow down the performance of Linux. So then, one might ask, since I have more than enough RAM available, wouldn't it better to remove swap space completely?

The short answer is, No. There are performance benefits when swap is enabled, even when you have more than enough RAM.

Read the full thing at https://haydenjames.io/linux-performance-almost-always-add-swap-space/

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How To Customize Firefox +57 User Interface  View Printable Version 
Sunday, November 26 2017 @ 12:49 PM CST
Contributed by: Linegod

HowtoThe new Firefox Quantum browser from Mozilla brough tons of new features and updates. It is now faster, lighter and more organized than ever it was before. However, with the new Firefox Quantum technologies which detached the older APIs used for complete themes and other add-ons, users were having a hard time customizing the browser's interface.

https://fosspost.org/tutorials/how-to-customize-firefox-57-user-interface

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Answering the most asked question on nmap-dev  View Printable Version 
Sunday, December 04 2016 @ 11:08 PM CST
Contributed by: Linegod

HowtoNmap doesn't have the standard 'contributing to nmap' page that most open souce programs have on their websites. I am convinced that is one of the major reasons people keep asking "How to Contribute?" on the mailing list.

Read the full thing at https://gyani.net/blog/getting-started-with-nmap/

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A Linux user's guide to Logical Volume Management  View Printable Version 
Sunday, October 02 2016 @ 02:46 PM CST
Contributed by: Linegod

HowtoManaging disk space has always been a significant task for sysadmins. Running out of disk space used to be the start of a long and complex series of tasks to increase the space available to a disk partition. It also required taking the system off-line. This usually involved installing a new hard drive, booting to recovery or single-user mode, creating a partition and a filesystem on the new hard drive, using temporary mount points to move the data from the too-small filesystem to the new, larger one, changing the content of the /etc/fstab file to reflect the correct device name for the new partition, and rebooting to remount the new filesystem on the correct mount point.

Read the full thing at https://opensource.com/business/16/9/linux-users-guide-lvm

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