Cisco
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
Infrastructure
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 when using
Infrastructure
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
Exchange
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! The
Cisco
The Cisco 3750x switch does not support NetFlow natively, but the C3KX-SM-10G module has ASICs that support NetFlow. With the C3KX-SM-10G module, NetFlow can only be run on the 4 interfaces in the module -- this does not add NetFlow on the entire switch. It is however possible to capture
Networking
We had a problem with Barracuda's ADC load balancer and Outlook Web App for Exchange 2013. The user would get to the OWA login screen and login only to be brought back to the login screen again in an endless loop. We were using the "Instant SSL&
Exchange
IT Support We had an issue when attempting to add a database copy for any mailbox databases in a new DAG. We received one of the following errors every time, regardless of the source or destination server. The seeding operation failed. Error: An error occurred while running prerequisite checks. Error:
Exchange
We had an issue with a client migrating from Exchange 2007 to 2013 where we couldn't access ECP on any of the new 2013 CAS servers. Instead we received the following: 500 Unexpected error : ( An error occurred and your request couldn't be completed. Please try again.
Networking
We've seen this happen twice recently with different customers so thought we should post our solution. We have seen where a Ubiquiti AP (NanoBeam & NanoStation) will power up via the power injector and the unit is reachable via wireless, but there is no link light on the
Cisco
(C891FW-A-K9) In order to add PoE to an 891 router, the datasheet says you need "800-IL-PM-4 with 125W PSU." I had to use the Cisco Commerce Workspace to generate a config starting with the 800-IL-PM-4= part number and then added the 125W power supply there. The following is
Adtran
Had an issue with an IP fax server (RelayFax with a Dialogic SR140 connecting via SIP trunk to an Adtran SBC) where inbound faxes were working fine and using T38 but outbound faxes were never negotiating T.38 and falling back to G.711 passthrough. As a result we were
Solutions
By default RelayFax will add an attachment to inbound faxes named AddRules.htm. This attachment is a page that will allow users to mark certain fax senders as spammers. In cases where these emails will be picked up by copiers/printers via email, then this attachment can be problematic. In