Tech Blog
How to show logging on the console of an HP Procurve
The Cisco equivalent of "term mon" on an HP Provcurve is: debug destination session
Barracuda ADC Load Balancer with 2012 Remote Desktop Services
We had a problem with a group of Remote Desktop Servers sitting behind a Barracuda ADC Load Balancer. The client either couldn't connect, or they would connect to a different server even when they had a session open already on another server. There was a group...
Tuning VMware vSphere ESXi for an EqualLogic iSCSI SAN
Tips on tuning VMware ESXi for EqualLogic SANs. Install Dell MEM Download from here: https://eqlsupport.dell.com/support/download.aspx?id=1484 Important: Unzip the package and inside the package is another zip file. That's the file that should be uploaded to a...
Restart SIP service on CME without reloading the router
In order to restart or reset the SIP service on Cisco CallManager Express (CME) you can do the following: voice service voip sip call service stop no call service stop
Packet capture from a Cisco device and export it to Wireshark
Ran into a situation where I needed to perform a packet capture on the WAN interface of a router that was facing an ISP. The site was rather remote and so putting a hub in between the router and ISP and capturing the packets via Wireshark was going to be very time...
Lync Enterprise Voice with Cisco or Adtran routers
Lync Called Number Translation
Trouble with Exchange UM and arbitration mailbox corruption
One of our clients had an issue where their Unified Messaging arbitration mailbox had become corrupted. We were unable to change the audio files on the auto-attendants and we were seeing errors like this in the application logs: Event ID 1431 UM can't save the Call...
Changing the URLs and names for an Exchange Server
If your Outlook clients are complaining about a cert name mismatch or if you're having other authentication issues then you might need to check that the names being presented match the cert. Here are some common places to check: Get-ClientAccessServer...
CME and Lync RCC Integration
This guide will go through the steps to setup Lync Remote Call Control (RCC) with Cisco CallManager Express (CME). I've used this with OCS, Lync 2010 and Lync 2013. CME must be version 8.0 or higher. CME On the router enter the commands that are not already present:...
Show ARP reveals thousands of IPs on the outside interface
Problem: When you run "show arp" on an edge router/firewall you see thousands of public IPs. This will eat up the memory and cause things to run slowly. I even saw in once case where "show run" revealed nothing, it would just come back blank because there wasn't...