Other Security Subjects

For the last few days, I've been seeing a lot of Sig 2001 ICMP Host Unreachables being triggered targeted at a large number of our hosts. The source address is our Internet gateway router's address. This isn't something I normally see in my logs. ...

Sig 3716's regex matches legit content in the following jpeg:http://akif2.free.fr/images/ac.jpg-wP!

Anybody knows how to check the tcp/udp ports a router is listening to?Regards,Ken Yip

I don't understand what does mean the restrict option in the following command:switchport port-security violation {restrict | shutdown}

Whenever I'm trying to deny incoming ICMP echo on a wan port it would not carry ssh traffic any more (just drops standing connections or does not allow new ones to start). Disabling ICMP Echo should not impact it really though. Release is 12.2(11.2u)...

Hi I have a 2621 with connected to a ISP. the ISP requires PPPOE authentication. The router authenticates fine gets its public address etc. The ISP connection is on FA0/0, and the local lan (192.168.11.0/24) on fa0/1I cannot get any traffic through t...

Hi,Is it possible to use Websense filtering for non-http ports while using a Cisco IOS Router ?I know that we can do it when using PIX, but with the IOS router i can only specify the URL Server while using "ip inspect name xxx http" command.Regards \...

On the VPN Client software, how or what do you configure so that the software will not remember the last name logged in with?

Every since implementation of the FWSM into our network, our internal LAN users have noticed repeated timeouts of their telnet sessions connected via Attachmate to a remote client-server across our WAN. They experience the lockouts at 5, 10 -30 minu...

Hi,I`m searching for practical experiences concerning the use of CSA and Netware/Netware client. Anyone who tried this combination in a test or productive enviroment yet?Thanks!Regards,Arne

I've been attempting to upgrade the signatures on my sensors and have been running into walls. I am continuously receiving this error: An error occurred while running the update script on the sensor named XXXXXids1. Detail = CLI Error: "The host is ...

I use IEV for monitoring triggered events. I found a lot of Long HTTP Reguests from my ISA server.From Network Security Database:Description: This signature fires when a long HTTP request using the GET, HEAD, or POST method is detected. Benign Trigg...

Hi,I configured a Cisco 831 router for remote access VPN connections. I'm on the right track, but still not quite where I need to be. Any help would truly be appreciated.The Scenario:Hosts can authenticate to the router using Cisco VPN Client (v4.0.2...

Hi,I need some help in mine PIX515. Currently, I have a web server in DMZ and user from Inside are accessible to that server via Internet DNS. How could I do it in such a way that Inside directly mapped this DMZ server directly without gonig thru I...