Networking, system administration and more
Networking, system administration and more
To configure CentOS 7 to use Active Directory as an authentication source sssd will be used. The sssd setup is greatly simplified using realmd, only basic manual configuration has to be added. Install Packages Install the required packages with yum: Join to Domain Join the host to the domain with […]
Read moreCentOS servers are supported by the Dell Linux software repository. Adding the repository will let you install and keep up to date things like the Dell iDRAC Service Module as well as Dell OMSA. Yum Repository First run the bootstrap script that Dell provides on the Dell EMC System Update […]
Read moreWhile managing a virtual chassis for 4 QFX5100 devices, I managed to create an inconsistent state between the virtual chassis members. When committing the configuration, the following error would show: I tried a few things to fix this at first, eg. removing the IRB interface in question then trying to […]
Read moreWhen starting a Juniper vMX router you may get an error from the vMX.sh script that shows that the libvirt files could not be generated followed by “setlocale: No such file or directory” one or more times. The error looks like this: Ensure that both the hosts’s locale and your […]
Read moreWhen starting a Juniper vMX router you may get a warning from the vMX.sh script that shows that the IOMMU status is disabled. It will look like this: This seems to occur if the host OS is CentOS – the shell script to detect the IOMMU does not validate this […]
Read moreWhen starting a Juniper vMX router you may get an error from the vMX.sh script that states “Insuffecient cores to pin” (note the incorrect spelling). The error looks like this: You may have over-assigned the number of CPU’s to the vFPC/vCP. Make sure that there is less CPU’s allocated to […]
Read moreNOTE: I originally published this page in 2018; instructions may now be out of date. When starting a Juniper vMX router you may get an error from the vMX.sh script that shows that the I40E drivers could not be checked. The error looks like this: The first thing to do […]
Read moreNOTE: I originally published this page in 2018; instructions may now be out of date. When deploying a Juniper vMX router on both a CentOS and Ubuntu host I ran into an issue when starting it. The symptoms were slightly different: For CentOS when the vMX started it would get […]
Read moreNOTE: I originally published this page in 2018; instructions may now be out of date. One of the new features for the vMX introduced in 17.4R1 is the virtual MS-MPC (known as the vMS-MPC). This allows you to run services such as NAT and stateful firewall on a virtual MX […]
Read moreNOTE: I originally published this page in 2018; instructions may now be out of date. The Juniper vMX product doesn’t include any init scripts or systemd unit files. You cannot also just set the VM’s to autostart with virsh since the VM’s are added and started with the vmx.sh shell […]
Read more