Cisco ASA Domain Authentication and Trust (Allowing)
ASA Domain Authentication KB ID 0000973 Problem I cringed this morning when I was asked about this, last time I had to get a client to authenticate to a domain through a firewall, it was ‘entertaining’. The problem is Windows loves to use RPC, which likes to use random ports, so to make it work you either had to open TCP ports 49152 and 65535 (Yes I’m Serious). Or you had to registry hack all your domain controllers...
Windows Server – Enable LDAPS
KB ID 0000962 Problem Note: Starting with Windows Server 2019, LDAPS (LDAP over SSL/TLS) is enabled by default, assuming a Server Authentication certificate is installed on the Domain Controller. Active Directory is built on LDAP, I’ve known this for a long time, but other than it’s a directory protocol that’s about all I did know. Like any directory, if you want information when you query the directory it returns a...
FortiGate LDAPS Authentication Failure
KB ID 0001733 Problem Here’s a brief one that tripped me up a couple of weeks ago, I was deploying FortiGate LDAPS authentication for some FortiClient SSL VPN connections into a FortiGate firewall like so; Despite my best efforts I was getting authentication failures? If I tested the username and password in the GUI web management portal, that worked fine? Testing FortiGate LDAPS First step is to test authentication at command...
Duo: Migrate from LDAP to LDAPS
KB ID 0001647 Problem With the impending ‘turning off’ of cleartext LDAP queries to Windows Server, I wanted to make sure my new Duo deployments were already using LDAPS. I got LDAP deployed very quickly and easily, but making the ‘swap’ to LDAPS proved to be massively problematic. Normally I find Duo a pleasure to deploy, but their technical documentation just confused me for this and I went running up some...
Cisco FirePOWER Management Center Appliance – Allowing Domain Authentication
KB ID 0001117 Problem Once deployed, authentication is handled by the appliances own internal user database, in larger organisations this is a little impractical. So the ability to create an Active Directory Group, and delegate access to Firesight to members of that group is a little more versatile. Solution I’m making the assumption that the appliance does not already have external authentication setup at all, so I’ll...