Exchange Error 451 4.4.0 primary target IP address responded with…
KB ID 0000252 Problem You see this error message on your Exchange outbound queues. 451 4.4.0 primary target IP address responded with “421.4.4.2 unable to connect.”attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. Solution Essentially this is a communication error, you can’t connect to the other end on TCP port 25 (SMTP)....
Windows 10 Shortcuts (Shortcut Keys / Shortcut Mouse Moves)
KB ID 0000207 Problem Ages ago I did an article on the Windows 7 “Screen Shortcut” Keys, and That led to this article. Now it’s been updated for both Windows 8 and Windows 10. Solution Windows 10 Keyboard Shortcuts Windows key + A Open Action center Windows key + C Open Cortana in listening mode Windows key + D Display and hide the desktop Windows key + E Open File Explorer Windows key + H Open the Share charm...
Microsoft Edge Can’t Be Opened Using The Built-In Administrator Account
KB ID 0001096 Problem Not only the built in administrator account, if you try and open Microsoft Edge whilst logged in as the Domain Administrator you will also see the same error message. To be honest this is a good thing, you shouldn’t be doing something potentially dangerous like going on the Internet as the administrator anyway. However for my test Windows 10 machine on the bench I’m not really bothered, I just want...
Windows 10 – Running the Cisco VPN Client Software
KB ID 0001097 Problem OK, firstly why are you still using the IPSEC VPN client? It’s not only gone ‘End-of-life’, it went end of support in July 2014. {That’s my Cisco Partner bit done}. So you have an old IPSEC Remote VPN solution and can’t afford an upgrade to AnyConnect? Now your shiny Windows 10 machines are complaining when you try and install the VPN client software. Error 27850. Unable to manage...
Download Cisco VPN Client Software
KB ID 0001098 Problem The Cisco VPN client software (CVPN-CL-IPSEC-ALL) is no longer available from Cisco. Milestone Definition Date End-of-Llfe Announcement Date The date the document that announces the end of sale and end of life of a product is distributed to the general public. July 29, 2011 End-of-Availability Date The last date to download the product from Cisco.com. The product is no longer for download after this date. July...
Cisco – Error opening tftp://255.255.255.255/cisconet.cfg
KB ID 0001099 Problem A friend was rolling out some PC’s for a client and wanted me to give him a network with the same subnet etc so he could build everything on the bench. I grabbed a router and set it up for DHCP, and to NAT all traffic for him, but annoyingly it kept doing this; %Error opening tftp://255.255.255.255/cisconet.cfg (timed out) %SYS-4-CONFIG_RESOLVE_FAILIURE: System config parse from...
Webmin – Upgrade Error – ‘Perl (Net::SSLeay) is needed’
KB ID 0001100 Problem I like to keep my CentOS server updated as much as I can, but the last couple of times I’ve gone to run the upgrade of the Webmin console, I’ve got this; error: Failed dependencies: perl(Net::SSLeay) is needed by webmin (version) Solution 1. As error messages go this is not a bad one, it obviously needs perl installing. So SSH into the server and execute the following command; yum -y install perl...
Cisco FireSIGHT – Enable Active Directory (LDAP) Authentication
KB ID 0001102 WARNING this is for older versions of the FirePOWER Management Platform, go to the following link for newer versions Cisco FirePOWER Management Appliance – Allowing Domain Authentication Problem To save you creating multiple users on your FireSIGHT appliance, and assigning roles to them you can utilise your existing Active Directory. In fact FireSIGHT does a good job of enabling granular administration based on AD...
Cisco ASA 5500-X Restart the FirePOWER Service Module
KB ID 0001101 Problem I’ve only just recently started to work with these, the advantage of them is they are great for SOHO and SMB, and they don’t need additional SSD drives installing. Note: This also procedure works on the larger ASA5500-X firewalls that have Firepower installed on an internal SSD drive, (i.e. 5512,5515,5525, and 5545 etc.) While getting them to work with a Sourcefire appliance, I had to...
Cisco ASA – Cannot Enable Third Party Certificate (9.4 and later)
KB ID 0001106 Problem I installed a third party certificate for a client on their ASA (from Digicert). And followed my usual procedure. I enabled it on the outside interface and tested AnyConnect, it wasn’t working. The ASA refused to present anything other than its self signed certificate. Solution This is because after 9.4 the ASA will automatically present a certificate that has an elliptical curve cipher. Even if the ASA has...