Network Security

Hello everybody, we have a weird issue in connetion with Firepower.The customer wants to access from his Windows 10 clients throughhis Firepower to a SMB share on Linux devices represented by a FQDN. After allowing the necessary applications and port...

Hello everyone, I need to know what the meaning of this message is, please.

I am not sure what is going on, or why this is happening.  We have 15 ASA with FirePower Services, and one true FTD that was just converted.  I logged into FMC and see that its been deploying a Security/Rule update for over 10hrs now to all my device...

I am trying to setup my Stratix 5950 switch for Many to One NAT configuration using NAT rules in ASDM wizard.My Inside1 interface is already configured for VLAN 10 with IP 192.168.10.xx. The Outside Interface1 at 192.168.20. xx has a PC connected wit...

Hi everyone, I have a bunch of Cisco 4321 Routers that I want to configure ACL on but I am running into some difficulties. I have an Internal Server connected to Router 3 that is using the Windows Time Service which acts as the NTP Server for the 3 R...

We've been having this strange issue wherein the firewall would disconnect or stop communicating to TACACS server. We recently migrated to Cisco ISE from Cisco ACS and for some strange reason there will be times (a lot of times) that the ASA will sto...

This notice is logged after the router start up: "Linux version 2.6.22 (zls[at]cybertan-team2) (gcc version 4.2.3) #47 Wed May 27 10:33:03 CST 2020"This Linux kernel is subject to 'Dirty Cow' exploit. 

Hello All, Is it possible to do port channel of Subinterfaces in FTD. Please find attached figure where i will bundle port ethernet1/3 (contains subinerfaces 1/3.1, 1/3.2)  with ethernet port 1/5 (will replicate same configuration as of port ethernet...

Hi, we are using the cut through proxy feature on an ASA against a radius server for some years. As this is basically a WebSite we are looking for the option todo authentication against SAML or OIDC . I have only found documentation about using SAML ...

Hi,I currently have 2 Cisco FTD 2110 devices in a HA pair. Both FTD and FMC are running 6.4.0.3 code.My primary ISP assigned a /27 public block (100.100.100.0/27 for example) being leased to me, I do not own them.So I was able to implement some one-t...

I am in the process of converting to an MPLS baased network using BGP routing. My network management station is reporting traps with OID ..1.3.6.1.2.1.15.7.0.2. I have tried using the SNMP object locator on the Cisco site for this but it cannot find...