Network Security

515EI am in the process of setting up an in house mail server. In so I have setup smtp, pop3, and imap to pass to my mail server.for some reason when I do the telnet test for 25 from an outside location, the 515E returns the 220 and not my mail serve...

I have disable netbios on my servers. I am also trying to use CIFS in the SSL portal. it apprears that the CIFS is using port tcp/139. can we change that to use SMB on tcp 445

We are having trouble getting nac to verify the dat version on a workstation running Virus Scan Enterprise 8.5i. The checks are there to do the registry check on virus scan 8.0 but now the registry entries are different in 8.5i. Has anybody else ra...

We are about to embark on an MPLS rollout (in a hub and spoke configuration - all remote offices will connect to the main office for Internet). We have about 1400 users. Which NAC solution would be right for us: 3 500 user servers or 1 1500 user s...

I have ICMP turned on to receive replies and some of my tunnels are pingable but others give me 2 messages:Denied ICMP type=0, code=0 from tunnelIP1 on interface outsideDenied ICMP type=0, from laddr tunnelIP1 on interface outside to MyPeerIP: no mat...

I recently signed up with MXLogic to filter SPAM.They advised mt yo lock down my PIX 501 firewall to only accept incoming SMTP connections on port 25 to only IP ranges208.65.144.0/21208.81.64.0/22 How do I do this?What entries do i need to add to my ...

Hi,I have PIX 515E - IOS 7.0.1. Since yesterday I am not able to take control of PIX(Primary) through ASDM and SSH. While login into ASDM it is giving error message "Unable to luach ASDM from 1.x.x.x. Connection reset" but I can access Secondary(Stan...

Hello,I just upgraded my Cisco PIX 515E-R-DMZ with PIX software 8.0(3) : as recommended on http://www.cisco.com/en/US/customer/docs/security/pix/pix80/release/notes/prn803.html I first loaded the PIX 8.0(3) image, then restarted the device to complet...

Please i want to know if the pix ios syntax has being change. I have an emulator with 525 ios version 7.2. each time i want to enter an interface, it allows only 'int e0'. but the book i am reading with ios ver 5.x. i can use 'nameif int e0 sec 100'...

I configure my asa 5520 and have next trouble - when i write my login and pass on authorizaion page of webvpn it's not work :( I write correct passwd but in logs radius i see incorrect passwd... may be i configure my radius wrong?But if i set on CLI ...

I am a newbie when it comes to configuring firewalls. I am configuring an ASA and am having a problem with the ACL's. When I establish an IPSec tunnel coming into the appliance, I can make the connection but I can't see anything on the network. When ...