Category: Fedora / RedHat / CentOS

PostgreSQL 9.4 for RHEL/CentOS 8 – x86_64 – Failed to download metadata for repo ‘pgdg94’ Error: Failed to download metadata for repo ‘pgdg94’
11.02.2021

when trying to update CentOS8 with PostgreSQL installed in this tutorial this errors shows up: repo: downloading from remote: pgdg94 error: Status code: 404 for https://download.postgresql.org/pub/repos/yum/9.4/redhat/rhel-8-x86_64/repodata/repomd.xml (https://download.postgresql.org/pub/repos/yum/9.4/redhat/rhel-8-x86_64/repodata/repomd.xml) PostgreSQL 9.4 for RHEL/CentOS 8 – x86_64 261 B/s | 162 B 00:00 […]

GNU Linux Distributions – about Fedora -> CentOS -> RedHat
19.02.2020

imho: CentOS is a rock solid server operating system. Why is CentOS perfect for servers? a server (usually) is build for a specific purpose and should have as little software installed as possible (more software = more reliability, speed and […]

RedHat podcasts – season 1 episode 1 – The OS wars
15.01.2020

https://www.redhat.com/en/command-line-heroes/season-1/os-wars-part-1 direct link: https://dts.podtrac.com/redirect.mp3/audio.simplecast.com/f7670e99.mp3 by: https://saron.io/ https://www.linkedin.com/in/saronyitbarek http://feeds.codenewbie.org/cnpodcast.xml Tweets by saronyitbarek  

Fedora CentOS RedHat – adding new fonts to the system for LibreOffice to use
15.12.2019

Adding new fonts for all users To install fonts for all users for example the boring company font: https://www.futurafree.com/wp-content/uploads/2017/04/futura-bold.zip one need to login as root and create a directory under /usr/share/fonts/ # tested on hostnamectl Static hostname: centos.localdomain Chassis: laptop […]

all xfs related man pages
16.07.2019

from version: hostnamectl Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 5.X Architecture: x86-64 cat /etc/system-release-cpe cpe:/o:centos:centos:7 all xfs related man pages: https://dwaves.de/man/xfs_admin.man.txt https://dwaves.de/man/xfs_io.man.txt https://dwaves.de/man/xfs_bmap.man.txt https://dwaves.de/man/xfs_logprint.man.txt https://dwaves.de/man/xfs_copy.man.txt https://dwaves.de/man/xfs_mdrestore.man.txt https://dwaves.de/man/xfs_db.man.txt https://dwaves.de/man/xfs_metadump.man.txt https://dwaves.de/man/xfs_estimate.man.txt https://dwaves.de/man/xfs_mkfile.man.txt https://dwaves.de/man/xfs_freeze.man.txt https://dwaves.de/man/xfs_ncheck.man.txt https://dwaves.de/man/xfs_fsr.man.txt https://dwaves.de/man/xfs_quota.man.txt […]

how to change uuid of logical lvm partitions
16.07.2019

problem: manually changing uuids is tidious and might not yield the result you want. unfortunately have not succeeded yet with integrating an old harddisk.vdi (same uuids) back into the template vm (same uuids) – so the recommendation is: reinstall os […]

16.05.2019

WARNING! central VestaCP software vendor was hacked in 2018 not sure if they fixed the problem and continue VestaCP development (a shame, it was really a very very nice web based gui to admin web and mailsevers) changing port for […]

15.08.2018

# yum based (fedora/redhat/centos) yum update –exclude=kernel* # apt based apt-mark hold package-name* # to unhold: apt-mark unhold package-name*

09.08.2018

i want to create a autostart script that starts whenever the server starts. mkdir /scripts vim /scripts/start.sh #!/bin/bash echo “========= starting up docker service” systemctl start docker echo “========= starting up docker containers” docker start containername vim /scripts/stop.sh #!/bin/bash echo […]

VestaCP disable roundcube webmail
09.08.2018

WARNING! central VestaCP software vendor was hacked in 2018 not sure if they fixed the problem and continue VestaCP development (a shame, it was really a very very nice web based gui to admin web and mailsevers) CentOS7: # search […]