vSphere – ‘Cannot complete operation due to concurrent modification by another operation’
KB ID 0001069 Problem I had been messing around with ports groups and VLANS, and afterwards when attempting to present a server some vNICs I got this error. Solution Virtual Center Appliance I have to completely restart the Virtual Center Appliance, before this error would clear! Solution (Windows vCenter) No matter what I did this error refused to budge, when this happens it’s usually because vCenter has got its knickers in a...
Windows NT/2K/XP/2K3 Password Recovery
KB ID 0000095 Problem Note: As the title suggests, this is quite an old post! you might prefer THIS ONE. Disclaimer: This information is designed to help people who are locked out of their own PC’s and not for Hacker Wannabe’s with the IQ of a haddock. Information is not inherently dangerous, just some people are. If you want to break things and be a general pain in the ass, sod off to Google and leave the grown ups alone....
ASA5505 – ‘This Licence Does Not Allow Configuring Of More Than 2 Interfaces’
KB ID 0001367 Problem When attempting to bring up a ‘3rd VLAN’ on an ASA 5505 firewall you see an error like this; Petes-ASA# configure terminal Petes-ASA(config)# int vlan 3 Petes-ASA(config-if)# nameif DMZ ERROR: This license does not allow configuring more than 2 interfaces with nameif and without a “no forward” command on this interface or on 1 interface(s) with nameif already configured....
Cisco ASA 8.2 Upgrade to 8.3
KB ID 0001366 Problem I can’t believe I’m writing this, it’s been so long since 8.3 was released (7 Years!) And still there’s firewalls out there running old code? Why is the 8.3 upgrade important? This update made some very major changes to the way we did NAT, and also the way we wrote ACL’s. It was a big change. I remember keeping my client firewalls on 8.2 for a while until I fully understood the...
Meraki Block Page http://wired.meraki.com:8090 ‘Not Found’
KB ID 0001365 Problem If you have a Meraki Security device and have enabled ‘Content Filtering’, instead of a nice ‘block-page’ informing you why you are being blocked you may see this; http://wired.meraki.com:8090 This is happening because your Corporate DNS is resolving ‘wired.meraki.com’ to 54.241.7.184, which you can also see if you look at the URL you are trying to connect to it on port 8090. A...
Mac High Sierra – Telnet and FTP Missing?
KB ID 0001364 Problem Why have Apple removed Telnet and FTP, yes they are old, yes they are insecure. For remote management you should be using SSH and for file transfers you should be using SFTP or FTPS. However what if I want to telnet to a mail server on port 25 and test email flow? What if I need to connect to a Cisco switch that does not have a K9 operating system, and only supports Telnet? -bash: telnet: command not found...
Cisco FirePOWER (On-Box / ASDM) Change the Time Zone
KB ID 0001363 Problem At first this was just a bug, now it’s annoying, I don’t know why Cisco have not got round to fixing this, it’s still a problem in the latest (6.2.2 at time of writing,) version. Solution Configuration > ASA FirePOWER Configuration > Local > System Policy > Time > Synchronisation > Manually > Save Policy and Exit. Deploy > Deploy FirePOWER Changes > Deploy. To View...
WordPress: Inserting ‘Anchor’ Links (Internal Hyperlinks)
KB ID 0001362 Problem Back when I did the website in Dreamweaver, this was a simple task, there was an ‘insert anchor’ button*. If you have a long webpages and you want your readers to be able to ‘navigate’ around it using hyperlinks, then ‘anchors’ are for you. *In WordPress there is still a GUI option, on the insert menu, so you can still ‘insert anchor’ (see below). What’s an...
Exchange: Apply Email Address Policy to All Distribution Groups
KB ID 0001361 Problem While doing a migration I needed to update all of a clients ‘Distribution’ groups with an additional mail domain. This is not normally a problem we can do that with an Email address policy, well yes you can if all the groups have ‘update email addresses based on policy’ ticked, (which is the default!) However this client had done everything manually. So that wasn’t an option....
Cisco ASA: Prioritise RDP Traffic
KB ID 0001359 Problem I have a client who had two sites, one didn’t have a particularly good internet connection, (which is the actual problem that needed to be solved). But in the interim, he wanted me to prioritise RDP traffic, as his staff were constantly complaining about the speed of their connections. Note: They may be a myriad of reasons why user experience is bad for an RDP session, this was quite simply a bandwidth...