Route Summarisation with EIGRP
KB ID 0001149 Problem I’ve already written a post that lets you calculate a route summarisation. So now you have a method of advertising your routes more efficiently, what do you do with it? Well I’m at the EIGRP point in my studies so here’s how to implement it with EIGRP. To demonstrate I’ve built the above network on GNS3, there is a loopback interface on the routers for each of those networks. Solution...
Safari – Open jnlp Files Not Download Them
KB ID 0001148 Problem Next to the rise of Nazism, war, hunger, and pestilence Java is the worst hing to happen to humankind! But because people keep using it for management consoles and things we are stuck with it. I’m particularly a big fan of the way they (Oracle) upgrade it because it’s got some huge security flaw in it, then all my remote iLO, DRAC and Cisco ASDM sessions don’t work anymore. It’s even...
VMware Fusion – Change IP Addresses
KB ID 0001147 Problem I use Fusion a lot, and it does what I want and never gives me any problems. I was working for a client this week and had to VPN onto their network (172.16.0.0/16 but all the servers were on 172.16.48.x). When connected I could not RDP to any of their servers? I asked a colleague to try on his laptop and it worked fine? I asked another colleague who also uses a mac, his worked as well. Solution I wondered if I...
OCSP Server – Bad Signing Certificate On Array Controller
OCSP KB ID 0001145 Problem I had a client ring in the other day, they have a three tier PKI solution on Windows Certificate Services, that I put in about a year ago, it has been running fine, but now they were seeing some errors. Bad signing certificate on Array controller. The following errors were also being logged; Event ID 23 Log Name: Application Source: Microsoft-Windows-OnlineResponder Date: 12/01/2016 08:44:01 Event ID: 23...
Certificate Services – Disable CRL Checking
KB ID 0001144 Problem Sometimes the services on your CA server will stop and complain about not being able to see your CRL, and some times the service will just refuse to start with the following error; The revocation function was unable to check revocation because the revocation server was offline. 0x80092013 (-2146885613 CRYPT_E_REVOCATION_OFFLINE). Solution OK the way to fix this permanently is to fix your CRL and make sure...