Tech Blog
Outlook clients not authenticating, but OWA and ActiveSync work fine
We had an issue where a clients' Outlook connectivity stopped working and they were continuously prompted for credentials. Mysteriously OWA and ActiveSync were fine. In the Security logs on the Exchange server we saw a lot of the following: Source: Microsoft Windows...
CCAPI: Internal Error (Software Error)
We changed a customer from PRI to SIP trunk and after the change, the Exchange UM stopped working for calls coming in from the outside. We found the following error in the logs: %VOICE_IEC-3-GW: CCAPI: Internal Error (Software Error): IEC=1.1.180.1.13.112 on callID...
Exchange Transport rule based on a group recipient
Regarding IT Projects for Exchange Server, a transport rule can apply actions to messages based on the recipient address. If you however attempt to use a Distribution List (group) the rule will not save, giving you the following error message: SentTo predicate...
Escape Sequence for a SM-X switch module in a 4000 series ISR
On the pre 4000 series ISRs you would use the regular Cisco escape sequence to exit a service module -- CTRL-SHIFT-6 followed by X. In the 44xx and 43xx series routers the switch modules do not respond to the regular escape sequence from the console. Instead, to...
Restart a single context on an ASA with virtual instances
The Cisco ASA firewall can run as virtual host for multiple virtual ASA's known as contexts. We recently ran into an issue where a memory leak made one context inoperable. Rather than reload the entire ASA and take out the other contexts we wanted to only restart...
Ruckus AP not connecting to Virtual SmartZone
Here are a list of things to troubleshoot when a Ruckus AP is not registering to a Virtual SmartZone (VSZ) cloud controller. Ensure that the public IP address of the site where the AP resides is permitted through the firewall protecting the VSZ. Check that the AP has...
Upgrading IOS-XE firmware on a 4000 series router
Had an issue where I was not able to successfully upgrade the IOS firmware on a Cisco 4351 router. This model of router runs IOS-XE and has some slight differences in feature set compared to legacy IOS. For example "ip dns server" was not an available command in the...
Barracuda ADC Load Balancer – How to show client IPs and not the proxy IP address – Part 2
In my first post on showing the client IP addresses through a Barracuda ADC load balancer, I showed how to get Direct Server Return to work for clients on the same network by adding loopback interfaces on the back-end servers. In this post I will discuss a problem...
Barracuda ADC Load Balancer – How to show client IPs and not the proxy IP address – Part 1
In order to see the client origination IP address on the real back-end servers when a Barracuda ADC load balancer is used there are two options. The first is to use layer 4 load balancing on the service type. The other option is to use a layer 7 proxy service and...
Speed up Mailbox Migration to Exchange 2013
As an IT managed services company we're often asked to do various IT projects. We found a solution for moving email mailboxes from Exchange 2007 or 2010 to Exchange 2013 that can often go very slowly, even when the network and server resources are fast and abundant! ...