Mitel SIP phones unexpectedly rebooting after a UniFi update? The Device Auto-Recovery feature may be the cause: if UniFi detects no traffic for an extended period, it may automatically power cycle the PoE port. I explain which devices are affected and how to disable Auto-Recovery for individual phones.
An Aruba 2930M switch cluster encountered an “Inconsistent Value” error when changing the default VLAN 1. The issue was traced to a corrupt VLAN 1 configuration. The solution involved reimporting the running config via WebGUI and CLI, successfully resolving the issue without needing to rebuild or reboot the switch stack.
On Sophos RED endpoints, a primary and secondary IP address or hostname can be defined as peer. However, if a RED tunnel is set up between two Sophos XG(S) firewalls, only one IP address or host name can be defined on the client side. This means that redundancies in the WAN interfaces on the server…
If the CSR for a certificate was created on a Sophos firewall, the private key cannot be exported directly. A tutorial on how to export without using any shell black magic.
Installing Sophos UTM Home on a Sophos ASG appliance. Or how to work around the error “Cannot use ASG software license on ASG1xx device.
MS Exchange servers, which are located directly behind a NAT, are insufficiently protected against the exploitation of security vulnerabilities. A short appeal to admins and decision makers to use reverse proxies or web application firewalls (WAF).
A relatively inexpensive Synology NAS can be extended with Microsoft 365 services to create a very comprehensive hybrid cloud solution for SMBs. A small How-To
Newer Sophos XG appliances have different port numbering when Sophos XG Home is installed. A little connection help.
A small tutorial on how to use the Sophos XG configuration exports to create templates.
With the release of SFOS 18.0, Sophos has announced that SFOS 18.x won’t be provided for any revision of the Sophos XG 105, Sophos SG 105 as well as for the Sophos XG 85. Successors have been introduced for the Sophos XG appliances. (Sophos XG 106 & Sophos XG 86) If you compare the hardware…