Hey is saying that since there is detection listed for it ciscos VDB, that there is prob a rule... My guess would be openappid could be used to detect it.

You cannot populate aliases with either the Snort or Suricata packages. They are just not designed for that purpose. Also, Suricata does not have a DPI equivalent of Snort's OpenAppID feature. If I understand what you are wanting to do, I know of nothing that can do that. Sounds like you want to dynamically route traffic depending on the packet type (after a Layer 7 deep packet inspection to identify the underlying app protocol).

A high core count CPU like you have will definitely need more memory allocated for the TCP Stream Memory Cap. With 8 cores I would start with 256 MB and test upwards from there. The parameter is found on the FLOW/STREAM tab. View the suricata.log file for the interface on the LOGS VIEW tab to see if you are hitting a Stream Memory Cap limit.

The pull request to update the Suricata package to 4.1.3 has been posted for the pfSense developer team to review and merge into pfSense-2.5 DEVELOPMENT. Here is the link: https://github.com/pfsense/FreeBSD-ports/pull/631.

Thought i would post for my own reference and anyone else with this problem.... Rebooting the firewall results in Suricata listening on all interfaces with 1 instance (startup). So, the problem fixed itself.

Yes, Snort and Suricata are IDS/IPS packages that can be used in pfSense. Google would be a great place to compare features and differences. (Lots of reading available on the subject) If you are trying out either for the first time, BMeeks posted a reply to a question for another user trying out Snort that may be of some use for you. (another good read): https://forum.netgate.com/topic/141743/best-rules-to-best-protection-in-wan-and-lan-interface/2

Hmm... that sounds like something you might want to ask the upstream Suricata team. I'm not sure of its significance. The Suricata bug reporting/issues site is here: https://redmine.openinfosecfoundation.org/projects/suricata. When giving them your configuration, tell them you are using inline IPS mode with netmap on FreeBSD. If you are on pfSense 2.4.x, then the FreeBSD version is 11.2; if you are using pfSense-2.5-DEVEL, then the FreeBSD version is 12.0.

@bmeeks thanks a lot!

Thank you both for your input. Yes this will be a huge learning curve for me. I will keep on analyzing.

I'll probably just run anti-malware then and front everything in the DMZ with a WAF. I already have it behind NGINX and cloudflare. Thanks for the help!

@bmeeks said in Still seeing suricata stop an interface due to .pid error: @val said in Still seeing suricata stop an interface due to .pid error: @bmeeks PM you the log file....it's way to big to post here. Thanks bmeeks. I looked through you log file. What version of the Snort Rules Snapshot file are you using? You should be using only rules packages for Snort 2.9.x if you are running Snort rules with Suricata. Your file name should be snortrules-snapshot-29120.tar.gz. Do not use the Snort3 rules (that means do not use any Snort rules file with 3 in the name). You should not be seeing those "unknown reference" error messages. The only time I've noticed those is when the user has downloaded the rules meant for use only with the new Snort3 beta package from the Snort team. Hi bmeeks I have since moved away from suricata backon Snort for now, my internet connection it's through an PPPoE connection so from my understanding suricata doesn't play well with PPPoE. I have tried few difference thing all result the same suricata still kill it self and wouldn't start again til I delete the pid file. Thanks for all the help.

If you can't figure out how !any got there, i'd be tempted to remove snort after unticking Keep Snort Settings After Deinstal then do a re install. I'd follow these steps to configure snort as written by @bmeeks who maintains the snort package. https://forum.netgate.com/topic/55095/quick-snort-setup-instructions-for-new-users/147

Netmap is not likely to play very well with a transparent firewall bridge setup, especially with the way netmap is currently implemented within Suricata. Some improvements are planned upstream for netmap, but there is not yet a timetable for their release. Also note that Suricata will not work properly with a PPPoE type interface. I mention that because that is a popular type of setup for a WAN. The most popular is DHCP, but there are lots of PPPoE connections. The least popular setup is a static IP on the WAN. If you want to continue with the transparent firewall arrangement, I recommend you use Legacy Mode blocking.

I am a little confused with this part of your question: the people I get support do not use static ip so I can ignore the requests coming to the port as I choose where and how to write a rule. I suspect English is perhaps a second language for you, and as a native English speaker, I'm having trouble following your chain of thought. Do you mean that your VoIP provider's endpoint server has a dynamic IP address or do you mean your end of the connection has a dynamic IP address? If you are dealing with a dynamic IP address, then preventing a block by IP is not possible. Snort can't deal with changing IP addresses within a Pass List. Why don't you just disable the Snort rule that is causing the block? You can do that on the ALERTS tab.

Thanks everybody for the replies! I understand it's not Snort's job to resolve the domain and I don't have any problem with seeing these kinds of alerts. However I would have at least expected it would be able to show me which domain is being looked up, moreover once the communication is established (e.g. someone visits the website or downloads something from it) Snort would kill that state and put the IP in the blacklist.

@bmeeks said in How to send Snort alert logs to Graylog without Barnyard2?: @rlrobs said in How to send Snort alert logs to Graylog without Barnyard2?: Filebeat is the best option... but.. how to install the filebeats in pfsense? https://www.elastic.co/downloads/beats/filebeat Convert packet .deb/rmp in pkg? Use .tar.gz? No, it is not likely that things compiled for Linux will work 100% correctly within FreeBSD due to shared library issues. It is my understanding that Beats in FreeBSD is a new and better (but still compatible) version of Filebeat. So FreeBSD's Beats is the same as Filebeat (at least that's my understanding). @bmeeks There is an official beats package for pfsense. http://pkg.freebsd.org/FreeBSD:11:amd64/latest/All/

Ok, I'm fine with this netmap setup. I have been using it since you had posted that Inline mode is available.

This worked for me, but I had to go through the additional step of assigning my new list to the interface that was generating the error (LAN in my case). I went to Services, Snort, Interfaces, edited the interface, scrolled down to "Choose a Suppression or Filter List (Optional) and added my newly created list then clicked Save. [image: pf-Sense-Troubleshooting-New-rule-2.png]