Exchange : ‘Message Exceeded The Maximum Size Limit’
Nov17

Exchange : ‘Message Exceeded The Maximum Size Limit’

KB ID 0001368 Problem When attempting to send an email from Outlook via Exchange, (In this case Exchange 2106). You see a message like the one below; The following files weren’t attached because adding them would cause the message to exceed the maximum size limit of {Size} MB: {File-Name} Solution There are a few places this can be set, lets deal with the most common ones first; TransportConfig: This has a maximum send and a...

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ASA5505 – ‘This Licence Does Not Allow Configuring Of More Than 2 Interfaces’
Nov16

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. Petes-ASA(config-if)# Or if...

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Cisco ASA 8.2 Upgrade to 8.3
Nov15

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...

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Meraki Block Page http://wired.meraki.com:8090  ‘Not Found’
Nov13

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...

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Mac High Sierra – Telnet and FTP Missing?
Nov09

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...

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Cisco FirePOWER (On-Box / ASDM) Change the Time Zone
Nov08

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...

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