Cisco ASA – SourceFire 5506-X | direct upgrade to latest build

In my previous post in april I figured out how to upgrade the software step by step. In the mean time I found out it's possible to do this in once. You need to setup first some tools before you can start. Have a TFTP and a FTP Server TFTP server needs to contain the … Continue reading Cisco ASA – SourceFire 5506-X | direct upgrade to latest build

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Cisco | ASA disable SSL 3.0 settings and change it to TLS V1.2

To see if you SSL version for AnyConnect is on a safe level. You want to check this first via the following website https://www.ssllabs.com/ssltest/analyze.html You need to enter your domain name which you use to connect with the clients to logon to. For this you need to use at lease ASA software version 9.3(2) or … Continue reading Cisco | ASA disable SSL 3.0 settings and change it to TLS V1.2

Cisco ASA License gone after memory and flash upgrade how-to-recover

Today I upgraded a Cisco ASA 5505 from 256MB memory to 512MB and 128MB Flash to 256MB Flash. After the upgrade the cisco asa forgot the configuration (not that bad, because I had a configuration backup), however after I uploaded the startup-configuration and than I saw the following output. Well I was thinking what is … Continue reading Cisco ASA License gone after memory and flash upgrade how-to-recover

Cisco ASA 5510 ISP Failover

How to create a ISP Failover on a cisco asa 5510. What do you need to create this solution... You need 2 Internet Providers. You need for both ISP an internet device ( in bridged modus ) You need one Cisco asa 5510 with a security bundle Prior to start with you configuration. Keep in … Continue reading Cisco ASA 5510 ISP Failover

Cisco ASA – How to View pre-shared keys in plain text

As engineers, you don’t always document things as well as we should OR someone you work with is always “too busy” to document their work. This little trick will show you how to recover pre-shared keys on a Cisco Pix or ASA firewall. Normally, you use the ’show run’ command to view the running configuration. … Continue reading Cisco ASA – How to View pre-shared keys in plain text