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Required OS: Debian 11 bullseye
Install service:

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apt install systemd-timesyncd

Check current status:

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systemctl status systemd-timesyncd

Should see: Active: active (running)

OS: Debian 9+ Setup apache: apt install apache2 Check configuration: nano /etc/apache2/sites-available/default-ssl.conf Check if webmaster's email is correct: ServerAdmin webmaster@srv.world Check if files exists SSLCertificateFile /etc/ssl/private/server.crt SSLCertificateKeyFile /etc/ssl/private/s...

Checked on: Debian Bullseye

Check current setting:

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systemctl get-default

Disable GDM:

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systemctl set-default multi-user.target

Enable if needed again:

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systemctl set-default graphical.target

Run root command:

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service --status-all

Applies for Windows Server 2012r2, 2016 and 2019 You need to update settings on two places: Control Panel -> Internet Options -> Security -> Internet -> Custom level -> Downloads -> file download set to Enable and Internet Explorer enhanced security configuration: Server Manager -> Local Server -> I...

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losetup -f -P image.img

Create file:

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touch /etc/cloud/cloud-init.disabled

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echo "mem" > /sys/power/state

How to check if your Linux system CPU does support x86-64-v2? Open nano: nano check_cpu Paste code: #!/bin/sh -eu flags=$(cat /proc/cpuinfo | grep flags | head -n 1 | cut -d: -f2) supports_v2='awk "/cx16/&&/lahf/&&/popcnt/&&/sse4_1/&&/sse4_2/&&/ssse3/ {fo...

Upgrade requires x86-64-v2 CPU. Login as root. Update currently installed packages: dnf update -y yum install http://repo.almalinux.org/elevate/elevate-release-latest-el$(rpm --eval %rhel).noarch.rpm -y yum install leapp-upgrade vdo leapp-data-almalinux -y Update entries in file: vi /etc/sysconfig/s...

Clean all yum cached data:
Centos, AlmaLinux

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yum clean all

To convert qcow2 image to raw use command:

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qemu-img convert VmImage.qcow2 -O raw VmImage.raw

If qemu-img command is not found, you need to install qemu-utils (Debian/Ubuntu):

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apt-get install qemu-utils

If after command "yum update" on Centos 8 you see: CentOS-8 - AppStream 70 B/s | 38 B 00:00 Error: Failed to download metadata for repo 'AppStream': Cannot prepare internal mirrorlist: No URLs in mirrorlist You can fix it by updating mirrorlist: sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum...

Apps needed:
Putty - terminal client

Debian 10 comes with a lot of new updates. One of them is new reboot command:

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systemctl reboot

You can change Remote Desktop port on your Windows Server machine by running PowerShell commands listed below: $portvalue = 3388 Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp' -name "PortNumber" -Value $portvalue New-NetFirewallRule -Dis...

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Search found 55 matches

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Windows Server 2012 enable file download

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Linux x86-64-v2 CPU compatibility check

Upgrade Almalinux 8 to 9

Clear yum cache

Convert the qcow2 image to raw

Centos 8 Failed to download metadata for repo AppStream

Debian 10 reboot command

Windows Server change Remote Desktop RDP port PowerShell