Connecting to and Managing Cisco Firewalls
Also see “Allow Remote Management” KB ID 0000075 Problem To connect to and manage a Cisco firewall you need three things, To be in possession of a password, (and in some cases a username). Have the ‘Method of Access granted to you’ (or have physical access to the firewall). Know a ‘Method of Access’ to the firewall for management. Cisco Firewall Passwords Unless your firewall is brand new (in which...
Cisco Firewalls and PING
KB ID 0000351 Problem With regards to Ping, out of the box a Cisco firewall will allow you to ping the interface you are connected to, so in a normal setup inside clients can ping the inside interface, and the firewalls outside interface can be pinged from outside. OK – to understand pinging through a Cisco Firewall you need to understand that Ping is part of the ICMP protocol suite, and unlike other protocols is not “connection...
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....
Windows Server – Fails Installing .Net 3.5
KB ID 0000924 Problem I needed to add .Net 3.5 to a Windows Server for an application install, but when I added it as a ‘feature’ it failed. Server 2016 The request to add or remove features on the specified server failed. The source files could not be found. Use the “Source” option to specify the location of the files that are required to restore the feature. For more information on specifying a source...