This article will explain how to add a security zone with a dedicated VLan, DHCP scope and DNS proxy rule. For the purpose of this example, we will add a guest zone with the following parameters : VLan ID : 40 Subnet : 10.10.40.0/24 Gateway IP (layer 3 interface) : 10.10.40.1 DHCP Scope : 10.10.40.128/25… Read More »
Beside the iCloud service, iTunes is the way to go when you need to backup your Apple mobile devices such as iPhone and iPad. If you want to secure the backups taken by iTunes on your computer file system, this article will show you where it is stored on your macOS computer file system. Before… Read More »
Heading toward OpenNMS and Grafana for your monitoring and visualization needs? Way to go! (or Oh Yeah! like Duffman would say). First of all, I suppose since you’ve end up reading that post, that you have a successful installation of OpenNMS, Grafana and OpenNMS Help plugin. Adding a data source in Grafana in your OpenNMS… Read More »
If you have an Intel card and the necessary “Advanced Network Services (ANS)”, that is bundled with the Intel driver, you have the capability to manage VLans for your network interface with PowerShell. 1. Use the “ipconfig” command to find out the name of your adapter. Example :
|
1 2 3 4 5 6 7 8 9 10 |
PS C:\WINDOWS\system32> ipconfig Windows IP Configuration Ethernet adapter Ethernet0: Connection-specific DNS Suffix . : IPv4 Address. . . . . . . . . . . : 10.1.1.50 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 10.1.1.1 |
In that case, our adapter name… Read More »
Here is how to configure DHCP relay on the QFX platform. 1. Define a DHCP server group with DHCP servers IP address(es) :
|
1 |
set forwarding-options dhcp-relay server-group <server-group-name> <ip.address> |
Example : If you want to name the group as “PRD-dhcpSrv” and the IP of the server is 10.1.1.10 :
|
1 |
set forwarding-options dhcp-relay server-group PRD-dhcpSrv 10.1.1.10 |
Note : You can add as many DHCP server as… Read More »
Experiencing the following behavior with RHEL/CentOS 7.2 and NFS? NFS folder mount hang and the following output can be observed in logs and dmesg : NFS: state manager: lease expired failed on NFSv4 server 0.0.0.0 with error 10082 NFS: nfs4_discover_server_trunking unhandled error -512. Exiting with error EIO nfsd: last server has exited, flushing export cache… Read More »
In some rare occasion, you may end up with an orphaned VM in your vCenter inventory where no “remove” option is available from the option menu. Beside doing the removal using the CLI, there is still a way that worked most of the time for me. 1. Browse to “VMs and Templates inventory” inside the… Read More »
If you are using PuTTY or any variant version such as Kitty (not the feline, but the SSH client!), you may have noticed that backspace does not work with some devices. To resolve this matter, follow the easy steps below. 1. In the client window, on the left pane, browse to : Terminal > Keyboard… Read More »
Beside the iCloud service, iTunes is the way to go when you need to backup your Apple mobile devices such as iPhone and iPad. If you want to secure the backups taken by iTunes on your computer file system, this article will show you where it is stored on your Windows computer file system. Before… Read More »
If you are running both cPanel and have your own R1Soft server, there is a nice integration in cPanel that allow users to restore files, database or their whole account from this external backup source/destination. There are several steps involved for this, such as : 1. Enable control panel restore on the R1Soft server ;… Read More »