Foreman is a provisioning and complete life cycle management orchestration tool for managing infratructure from a graphical interface and also from command line tool hammer-cli. With computing resources in foreman supports managing different type of hosts like vmware, aws ,…
Deploying Personal Virtual Desktops by using Remote Desktop Web Access Step-by-Step Guide
Abstract Personal virtual desktops are virtual machines that are assigned to a user within your organization and available by using either RemoteApp and Desktop Connection or Remote Desktop Web Access (RD Web Access). In this guide, we will set up…
Disk expansion after clonezilla restore to a larger disk.
Clonezilla used to restore the clone image to a destiantion drive , if the destination drive size is larger than the original source disk cloned then after image restore you will see old disk size instead of new one. Eg:…
No internet on kvm guests.
After setting up bridge network on network interface enp9s0 , kvm guests had issues with accessing ssh,internet. Current bridge configuration bridge name bridge id STP enabled interfaces br0 8000.001c2301fbdc no enp9s0 to allow kvm guests network connectivity with host net.ipv4.ip_forward…
Openvswith with kvm bridge network.
Openvswith is a virtual switch production level software, that can be used in virtual switch in VM environments like kvm , virtualbox etc.. In case of vm’s network connection to outer world is established by NAT or Bridge (Layer2 device)…
Openvswitch on fedora with kvm.
Openvswitch is the software used on both physical and virtual environments to implement L2 switching. Instalallation of openvswitch. #dnf install -y virt-install libvirt openvswitch Enabling the openvswitch service and daemon. #systemctl enable openvswitch Created symlink /etc/systemd/system/multi-user.target.wants/openvswitch.service → /usr/lib/systemd/system/openvswitch.service. #systemctl start…
netdata monitoring tool installation on fedora26
Netdata is a distributed , scalable monitoring tool available on nix , mac operating systems. net data also supports alerting with various services to send emails to users To install netdata on system , refer the git hub documentation at…
Understanding the use of /Var/Lock/Subsys on redhat systems prior to systemd.
Redhat/Centos 6 uses a upstart daemon called init , init programs has pid of 1 which sets the environment for the user, init propram after starting becomes the main parent process then executes scripts in the file /etc/rc.d/rc.sysinit then starting…
rc-local service enabling on centos7
rc-local service enabling on centos7 In redhat systemd is used as default upstart daemon replacing int, systemd provides back wards compatibility with with the init scripts, under rehdhat/centos6 id customs were supposed to run at at boot time they would…
squirrelmail Forbidden You don’t have permission to access
squirrelmail Forbidden You don’t have permission to access squirrelmail after setup when accessed shows 403 Forbidden error,this is due to improper configuration in squirrelmail.conf file. if you are using apache 2.4 version set Require all granted that should fix the…