Snort mailing list archives
Re: Capture Email Content / Website Activity
From: <barryab63-ia () yahoo com>
Date: Mon, 28 Nov 2005 01:31:28 -0800 (PST)
The only drawback to this configuration is it introduces another point of failure to your network. If for some reason the snort box fails, the network is down. The upside is that you can use the Snort inline functions and actually have snort stop some attacks. It really depends on what's more important to your client. You could put an Ethernet tap in place of your snort box, the tap is still a point of failure. But, in most cases the tap will continue to pass data on the network, you just loose the monitoring ability. I believe there are some papers on the Snort web site that talk about this. Barry stuff () trackingsolutions ca wrote: Does this configuration have any drawbacks for security, reliability or speed. Internet --> modem --> router --> snortbox --> switch --> local network Thanks On November 27, 2005 04:42 pm, G Ramon Gomez wrote:
stuff () trackingsolutions ca wrote:The first scenario: Internet --> Modem --> snortbox --> router --> local network will not allow me to specify what machine is sending information. It would just give me the ip of the router. Right?If you're NATing, yes.The second scenario: Internet --> modem --> router --> snortbox --> switch --> local network this scenario will allow me to monitor the activity from within the local network.Yes.In the second scenario is it nessicary to run iptables or is iptables used to route the traffic?iptables would be used to provide the bridging, so it's needed.Also I do see the value of squid to monitor the traffic to the web.Ok. To "monitor the traffic to the web", you need some form of activity logging. Furthermore, you need some form of data analysis to make sense of the logs, unless you intend to manually review all of the log lines. Within the context of data analysis of web logs, there are more tools available to squid then there are to snort, because snort isn't meant to do this type of work. Squid, on the other hand, is. Unfortunately, I can't explain any better than this why you'd want to use squid to monitor web activity. Using a proxy to audit user web activity versus using an IDS for the same seems intuitive to me (unless you're doing policy-based auditing, in which case you're not monitoring *all* activity, just the activity that might violate policy). - Ramon ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- Re: Capture Email Content / Website Activity, (continued)
- Re: Capture Email Content / Website Activity barryab63-ia (Nov 27)
- Re: Capture Email Content / Website Activity stuff (Nov 27)
- Re: Capture Email Content / Website Activity Alex Butcher, ISC/ISYS (Nov 28)
- Re: Capture Email Content / Website Activity stuff (Nov 27)
- Re: Capture Email Content / Website Activity G Ramon Gomez (Nov 27)
- Re: Capture Email Content / Website Activity stuff (Nov 27)
- Re: Capture Email Content / Website Activity G Ramon Gomez (Nov 27)
- Re: Capture Email Content / Website Activity stuff (Nov 27)
- Re: Capture Email Content / Website Activity G Ramon Gomez (Nov 27)
- Re: Capture Email Content / Website Activity stuff (Nov 27)
- Re: Capture Email Content / Website Activity barryab63-ia (Nov 28)
- Re: Capture Email Content / Website Activity G Ramon Gomez (Nov 27)
- Re: Capture Email Content / Website Activity barryab63-ia (Nov 27)