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06 Mar 2020 2 minutes read
FB4 Git Push Asks for Username and Password
  • Advanced topics

Git Push Asks for Username and Password

I’ve been refreshing my gleb.reys.net website recently and experienced a weird error: pushing latest changes to …

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29 Feb 2020 1 minutes read
FB4 Log Fail2ban Messages to Syslog
  • Advanced topics Security Troubleshooting

Log Fail2ban Messages to Syslog

**fail2ban logging into syslog** With quite a few servers accepting SSH connections and protecting themselves using …

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20 Feb 2020 2 minutes read
FB4 How To: Use Filesystem Labels in /Etc/Fstab
  • Advanced topics Linux

How To: Use Filesystem Labels in /Etc/Fstab

**Filesystem label in /etc/fstab** Yesterday I have shown how to manage ext2/ext3/ext4 filesystem labels using e2label …

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18 Feb 2020 2 minutes read
FB4 List Available Repositories in Red Hat
  • Advanced topics Red Hat

List Available Repositories in Red Hat

**Listing repositories with subscription-manager** I have finally gotten around to launching a new RHEL 8.1 virtual …

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16 Feb 2020 2 minutes read
FB4 Systemd Unit Types
  • Advanced topics Linux

Systemd Unit Types

I’m catching up on my systemd knowledge, this is almost a note to myself – a summary of the systemd unit types …

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08 Feb 2020 4 minutes read
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  • Advanced topics Troubleshooting

Host Key Verification Failed

When reinstalling servers with new versions of operating system or simply reprovisioning VMs under the same hostname, …

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03 Feb 2020 2 minutes read
FB4 Shutdown vs Halt
  • Advanced topics

Shutdown vs Halt

**shutdown vs halt** Getting the difference between shutting a Unix system down versus halting it is kind of important. …

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01 Feb 2020 2 minutes read
FB4 Show Files Installed by a Debian/Ubuntu Package
  • Advanced topics Debian Ubuntu

Show Files Installed by a Debian/Ubuntu Package

**List files in a Debian/Ubuntu package with dpkg-query**

Sometimes it’s not enough to know that a certain …

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17 Jan 2020 5 minutes read
FB4 DEBUG: Cron Keeps Piling Up in MacOS
  • Advanced topics Mac OS Troubleshooting

DEBUG: Cron Keeps Piling Up in MacOS

**cron processes piling up in macOS Catalina** So, long story… After upgrading to macOS Catalina my years-old …

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16 Jan 2020 2 minutes read
FB4 Advanced USB Discovery With Usb-Devices
  • Advanced topics

Advanced USB Discovery With Usb-Devices

**usb-devices example** If you’re working with USB devices a lot, Linux platform offers a great way to learn more …

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