I am sure you have installed a GBIC in a Cisco switch that was not manufactured by Cisco. and your switch no doubt shut down the SFP port and gave the following error %PHY-4-UNSUPPORTED_TRANSCEIVER: Unsupported transceiver found in Gi1/0/0 %GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port 65538 has bad crc well here is how we fix that […]
I have had many people ask me about commands on switches and I was going to make a cheat sheet but Erik Rodriguez did such a nice job I am going to share his work Great job Erik Cisco IOS Cheat Sheet By Erik Rodriguez These commands are used on all Cisco devices running the […]
Most domain admins these days are following the very smart practice of using a normal user account for their day to day work and another for their domain admin tasks. Usually it is the same username with da at the end, beginning or something similar. The trouble comes in when a admin wants to use […]
I have run into several SB installs with very high memory utilization issues lately. I started poking around and noticed it was MS SQL chewing up all the memory. I thought this was odd so I hit good old google and sure enough it is a very common issue for WSUS to go a bit […]
As most everyone has heard SSL 2.0 has been compromised. Most PCI certification authorities are requiring SSL 2.0 to be disabled. I am sure with poodle SSL 3.0 is not far behind but that is for another article. I have written the following batch file to make all the needed changes and save some legwork. […]
These are notes I’ve compiled after many years of supporting Northern Telecom/Nortel Networks SL1, Meridian 1 and NCS 1000 phone systems. While graphical tools exist, many times it’s easier to connect via serial terminal or a telnet session and use the command line for common tasks. ADD AN AREA CODE > LD 90 REQ NEW […]
Many times I came across one issue… how to grant access to CLI (Command Line Interface) on Cisco devices without creating separate username and password for each user on each device? In order to resolve that I did use AAA features of Cisco IOS and built-in Windows Server 2008 R2 component – NPS (Network Policy […]
Many windows admins these days are very busy upgrading/replacing windows XP. I am not going to go into how very important to remove windows XP machines from our environments since it is now EOL and no patches will be released any longer. What I am going to show you is how to find all those […]
We just recently begun building an Exchange 2013 DAG to support out email environment. This is part of an internal shift to Lync 2013 and Exchange 2013 for unified communications. We followed Microsoft instructions on building my first 2013 machine, migrated a single test mailbox and started testing. We found no mail flow between […]
VMWare Converter uses a protocol called NFC for the cloning process. To increase security, encryption was introduced with Converter 5.0 for the data transfer. Unfortunately this comes at the expense of performance. If you do not need this security feature, it is possible to improve the speed and performance of your conversions dramatically. To achieve […]
