Windows Remote VPN no DNS
VPN no DNS KB ID 0001402 Problem I’ve been setting up a VPN solution on the test bench as I’m looking at Always On VPN. When I noticed that I had a problem with my remote VPN connections on Windows. They would connect fine but I could not resolve any FQDNs for my domain? VPN no DNS Solution By default, all (Windows) VPN connections are ‘Force Tunnel’ (this means they have the option ‘Use default gateway...
RDS Gateway Connection Error
KB ID 0001623 Problem I had to deploy a Remote Desktop Gateway Server into an existing RDS farm for a client this week, the RDS farm was presenting Windows Desktops (VDI) from Hyper-V. All went well until I tested the Gateway Server Externally, this is the error I got. Remote Desktop can’t connect to the remote computer ‘server/farm-name} for one of these reasons. 1) Your user account is not listed in the RD...
Event ID 12016
KB ID 0000292 Problem Event ID 12016 There is no valid SMTP Transport Layer Security (TLS) certificate for the FQDN of <domain>. The existing certificate for that FQDN has expired. The continued use of that FQDN will cause mail flow problems. A new certificate that contains the FQDN of <domain> should be installed on this server as soon as possible. You can create a new certificate by using the New-ExchangeCertificate...
Ubuntu – Joining / Logging into Windows Domains
KB ID 0000384 Problem You have a Linux client machine, and you want to authenticate to, and log into a Windows domain. I don’t have too much history with Linux, but from what I’ve read this used to be a nightmare. Using Ubuntu (10.10) I did have a couple of hiccups, but I did get there in the end. Note: The domain controller is a Windows 2008 R2 Server. Solution Notes 1. The commands needed to install the...
Postfix – Change The ‘Welcome Banner’
KB ID 0000907 Problem After my recent DNS troubles, I was checking my mail server’s (MX) records, and got a warning about not having any reverse lookup records (PTR) configured properly. I telnetted to the mail server on port 25, and saw it was responding with the servers host-name. I know my records are correct for the FQDN of the server, I just needed to change its welcome banner. Solution Change the Postfix Welcome Banner by...