Install QEMU Guest Agent on Ubuntu for Seamless Virtual Machine Operations If you’re using Proxmox VE to manage virtual machines running Ubuntu or Debian, you’ll want to consider installing the QEMU Guest Agent. This lightweight software component offers a range… Continue Reading
In this article you will learn how to uninstall default nftables framework, install iptables Debian 11 (Bullseye) and basic rules initial configuration. Uninstall nftables and its Dependencies IPtables is being replaced by nftables starting with Debian 10 Buster. Debian 11… Continue Reading
How to fix Debian 9 apt-get update error: The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key To fix error we need download and install new SURI repository key: # wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg And try re-run update:… Continue Reading
How to fix error in Debian Linux: server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none Try to reinstall certificates: # apt-get install –reinstall ca-certificates Then add root certificates: sudo mkdir /usr/local/share/ca-certificates/cacert.orgsudo wget -P /usr/local/share/ca-certificates/cacert.org http://www.cacert.org/certs/root.crt http://www.cacert.org/certs/class3.crtsudo update-ca-certificates Discuss article in… Continue Reading
How to fix wget ERROR: The certificate of ‘ ’ is not trusted How to fix wget command error in Debian or Ubuntu: ERROR: The certificate of ‘ ’ is not trusted. ERROR: The certificate of ‘ ’ hasn’t got… Continue Reading
Media change: please insert the disc labeled ”Debian GNU/Linux In case if Debian cannot found CD-ROM or DVD with Debian packages yo may have error: Media change: please insert the disc labeled ‘Debian GNU/Linux 9.11.0 _Stretch_ – Official amd64 DVD… Continue Reading
5 Great Commands to Monitor Network Bandwidth on Linux Server Linux network traffic monitoring is one of the main parts of Linux troubleshooting. And can be done by many network monitoring utilities. In this article we will discover 5… Continue Reading
How to fix error: add-apt-repository: command not found on Ubuntu This tutorial about how to easy fix error: add-apt-repository: command not found on Ubuntu or Debian Linux systems. When you adding a new PPA repository in your Ubuntu or Debian… Continue Reading
In this article i will show how to install tcpdump on Linux (Ubuntu, Redhat) and Capture DHCP requests using tcpdump utility in Linux. DHCP requests can be captured with tcpdump. So first we need install tcpdump utility in our Linux… Continue Reading
How do I fix locale issue in Debian, Ubuntu Server? Just add the following to your /etc/environment file: LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 then: $ sudo locale-gen en_US en_US.UTF-8 $ dpkg-reconfigure locales