Web Security

I need to diagnose why a particular website is all of a sudden blocked today.  The ironport web filter does know who I am, and I did hit google once with IE quicly before continuing with Chrome, but I am still being blocked.The only log I know of is ...

Does the Ironport support LDAP authentication with Single Sign-On. Or, is it only supported on NTLM? Can you setup multiple authentication realms to the same AD server, but call different AD groups? What I am trying to accomplish is to have single si...

I configure proxy in transparent mode with no LDAP authentication it's work but I enable LDAP authentication it's not work.I got e-mail alert about error in LDAP authentication. See alert below.________________________________________________________...

Hello All,Can anyone explain how ScanSafe works from the end client perspective? I'm not concerned about what happens in the cloud, I am more concerned with what changes are required on end client devices and/or network devices. For instance I assume...

I temporarally was using a Mac on our network, and launched Google Chrome.  A popup of course came up to log into webfilter.  I typed in my AD username and password, and it let me on the internet.  However, I do not have my level of access (cannot do...

We are wondering how the cisco ironport s160 web filter can aid us in data loss prevention.  One of the concerns is employee access to third party e-mail services (gmail, yahoo, hotmail, etc...).  Now for the most part we have these web based e-mail ...

Hello,Following the activation of HTTPS filtering yesterday, various users started to experience issues when accessing certain web sites. The cause is very unclear. We are running ASyncOS 7.0.0-819 on a pair of S360.The main symptom (in three reporte...

I see that release 7.1.1-037 is available for the WSA.  is there anywhere I can find the release notes/resolved & open caveats for this upgrade?  As seems typical, on a bleeding edge release it's near impossible to find any documentation on cisco's w...

Hello,Does anybody know how to block Ultrasurf , for the moment I have not been able to block it.Best regards,Ilir

I have an odd issue with certain sites and SSL.  when a user goes to https://www.hotmail.com the site works fine.  If a user goes to https://slep.dmsbfda.army.mil the browser returns page cannot be displayed.We are not decrypting any SSL traffic, it ...

When my Firefox users got to a URL the are prompted for username and password.  If a user hits cancel, they get WWW_AUTH_REQUIRED.  However, If they leave the feilds Blank and hit OK.  The web site comes up. Doing a web tracking on the Ironport for t...

Hi,Our company policy does not allow you to surf to the YouTube site (www.youtube.com), but we want to allow access to YouTube pages referenced thru web pages of allowed sites. What I mean is that if you should surf to www.cisco.com and click on a li...

We regularly get BlackHole DNS URL's in our Malware Threat Report (Adware>Blackhole DNS URLs)The report states that transactions are all blocked.When we go to examine/scan the user/computer that is referenced and run Malwarebytes scans nothing is det...