we are seeing a lot of the messages below when looking at the reports, Does anyone know what they mean? do we need to take any action   Cleared DELETED BLACKLIST DNS request for known malware domain      

i cant find what is the difference between 5515-mb and 5515x-k9,,,,  we purchased a new one to complete the HA pair. anyone knows if they wont have any problems running failover between them?

Hey, ive been trying to get a simple QoS Implementation to work. we purchased a stack of 3850s  for incoming traffic from clients. so ive been trying to marking incoming packets from the client network with specific DSCP and then apply priority based...

My users are not very PC savy so when Firepower redirects them to the captive portal, sometimes they do not click continue to proceed to the portal (since its a untrusted https site), so i want to apply a internal trusted cert to it so it takes them ...

i was just handed over administration of a cisco 2960, i was surprised to see that it had telnet instead of SSH. but when i tried to set up ssh. the crypto and the IP SSH commands do not exist.!  Switch(config)#crypto ?% Unrecognized command am i m...