H7Tech | advanced os and network administration

Nginx and Let’s Encrypt

For those using a virtual server service like Vultr (this guide), Linode, DigitalOcean etc... Let's Encrypt is a new Certificate Authority (CA) that...

Proofpoint Essentials and Azure AD registration

The instructions found on their website for setting up Proofpoint Essentials and connecting to Azure needs updating. Microsoft no longer allows...

Reset admin password for Unifi Wireless Controller

Install Robo3T Start the UniFi controller Start Robomongo Create a new connection in Robomongo, leave all settings as it is except the port which...

Office apps display Unlicensed on title bar

Did you just sit down to work on that super important report for the boss when suddenly your Word application has a huge red bar telling you this is...

The user profile service failed the logon. User profile cannot be loaded.

When logging on to a Windows machine the user may get the error message like “The user profile service failed the logon. User profile cannot be...

can’t add printer due to NT4 policy in effect

For some printer models, the manufacturer does not package the drivers so that they can be installed as Additional Drivers on a print server. This...

Jailbreak Cisco Unified Call Manager

Connect to the administrator CLI using SSH Run the command file dump sftpdetails ../.ssh/id_dsa. This should give you the private key of the SFTP...

OWA – ‘gtLV’ is null or not an object

I was getting the “gtLV’ is null or not an object” message when I replied to an email using our Microsoft Online Hosted Exchange email account....

Cisco ATA 186 and 10.1.1.1

If you notice any issues on your firewall regarding your ATA 186, it's most likely because of a factory hardware error that causes the ATA to try to...

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