Network Security

Dear all , how can we allow from inside telnet by name like ( telnet mail.xxx.com 25 ) , but if i'm at outside i can telnet mail.xxx.com 25 is working.  Best Regards,Rechard

Hello friends, i have a webserver on my private 192.168.100.41, i want to access it from inside but it's not working ... i can access it only from outside . What should i change in the configuration that i can access it from my inside network?i have ...

Hi Cisco Expert,If a command is not explicitly entered, will this mean it is not applied.For example, if the command "no service finger" not entered, this means finger service is not enabled?Regards,Jhun 

Hi friends, i want to block https sites and i have a cisco asa 5515-x, somebody have idea for do that?

Hi All,I am curious to understand the concept of packet flow (or) (inspection /order of operation) in CISCO ASA 8.2 version. 1. What happens to packet during the outbound flow (Inside to Outside) and Inbound flow (Outside to Inside). I would like to ...

Hi,I was hoping if there are any pro's when competing against Palo Alto Networks firewalls? We are a Cisco SourceFire reseller and see more Next Generation firewall projects.Thankssebastiaan

I have a firewall with an AIP-SSM-10 module in it.  I tried to upgrade the firmware using the recovery mode but it did not work.  So now I am trying to re-run the upgrade and I am getting no where with it.  I have tried to reseat the AIP-SSM-10 modul...

Greetings,  is there a way to allow traffic from dmz to inside for exchange traffic . I have a barracuda spam firewall that needs to be moved to dmz. barracuda does port forwarding to server b for 443 and smtp traffic goes to server a and server b.  ...

We have a new ASA 5545 with multiple internal VLANs.  After much reading, I am more confused than ever regarding the new NAT.  Could somebody please help with this simple example w/ several internal VLANs?  I would like to setup acl's to filter conne...

I have an old Cisco PIX-515E, 128 MB RAM for my test environment.I have update the Pix to "Cisco PIX Security Appliance Software Version 8.0(4)3"But now i need the ASDM image file. Can somebody send me these file? Hardware:   PIX-515E, 128 MB RAM, CP...

Two ISP link Terminated, 1 on ASA 5510 and 1 on cisco Router 2801, need to achieve failover between two ISP. need possible ways .if Router Links goes down then Firewall link should takeover.two different group of user , 1 group having gateway of rout...

Dear Friends,There is a IPS 4260 that reports the status LED to red. When reading the hardware installation guide, i came to know that this indicates a POST failure. I forced a POST again of the IPS by rebooting the IPS but i could not capture any si...

Im having troubles to access share over vpn.When the source is the vpnclient(11.11.7.0/24) and i try access the share in server 11.11.18.2, dont works.But the inverse works, if i create the share on vpn client (11.11.7.0/24), and try access this with...