Exchange Stopped Working?
KB ID 0001749 Problem I see various posts in online forums, and the process is held up because a lot of techs can’t do basic troubleshooting on their Exchange deployments. So I thought I’d put together some basic ‘first steps’ for you to do when your ‘Exchange Stopped Working’ This way you can at least get an error code to search for or a better idea of what’s going on. Exchange Stopped...
Server 2008 R2 – Inbound traffic Blocked – Outbound Traffic works?
KB ID 0000397 Problem My colleague had this problem this week, and it involved a call to Microsoft to resolve. Basically the client had some comms problems, so ran Windows updates, post update the server (which was the main domain controller and DHCP server for the network) could not be seen by any clients on the network. The server itself however could quite happily see everything else. Solution The problem is due to the Windows...
Cisco ASA – I Cannot Ping External Addresses? (Troubleshooting ICMP)
KB ID 0000914 Problem Considering we use ICMP to test connectivity, the fact that it is not a stateful protocol can be a major pain! Last week one of my colleagues rang me up and said, “Can you jump on this firewall, I’ve got no comms, and I cant ping external IP addresses. I can ping the internet from the firewall and I can ping internal IP addresses form the firewall”. Solution 1. Before we start, lets get the basics...