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    2.0.1 - Snort won't start - New Install

    Scheduled Pinned Locked Moved pfSense Packages
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    • F Offline
      Fesoj
      last edited by

      Are there any clues in the system log (Status: System logs: System)?

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      • N Offline
        NetworkNubbin
        last edited by

        @Fesoj:

        Are there any clues in the system log (Status: System logs: System)?

        Hi, yes, there seems to be the generic 'version mismatch' errors:

        Jul 5 14:11:17 snort[937]: FATAL ERROR: Failed to initialize dynamic preprocessor: SF_DCERPC version 1.1.5 (-1)
        Jul 5 14:11:17 snort[937]: FATAL ERROR: Failed to initialize dynamic preprocessor: SF_DCERPC version 1.1.5 (-1)

        Current snort version is:

        snort -V
        
           ,,_     -*> Snort! <*-
          o"  )~   Version 2.9.2.3 IPv6 GRE (Build 205) FreeBSD
           ''''    By Martin Roesch & The Snort Team: http://www.snort.org/snort/snort-team
                   Copyright (C) 1998-2012 Sourcefire, Inc., et al.
                   Using libpcap version 1.3.0
                   Using PCRE version: 8.30 2012-02-04
                   Using ZLIB version: 1.2.3
        
        

        This seems pretty generic, and I'm not sure of the 'right' way of fixing this in pfsense

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        • M Offline
          mschiek01
          last edited by

          from the console shell go to:

          /usr/local/lib/snort/dynamicrules

          Delete anything in this directory

          Start snort from the Gui.

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          • N Offline
            NetworkNubbin
            last edited by

            @mschiek01:

            from the console shell go to:

            /usr/local/lib/snort/dynamicrules

            Delete anything in this directory

            Start snort from the Gui.

            Saw that on another post but…there's nothing there:

             pwd && ls
            /usr/local/lib/snort/dynamicrules
            
            

            :(

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            • M Offline
              mschiek01
              last edited by

              I am sure you did but I have to ask, you did click on the update rules in the gui after the install and also select an interface for snort to run on and finally selected rules to apply to the interface correct?

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              • N Offline
                NetworkNubbin
                last edited by

                @mschiek01:

                I am sure you did but I have to ask, you did click on the update rules in the gui after the install and also select an interface for snort to run on and finally selected rules to apply to the interface correct?

                lol…sadly yes :(

                What's next?

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                • _ Offline
                  _igor_
                  last edited by

                  same issue here:

                  starting snort from gui doesn't work. logs show this (end of log):

                  Jul 6 12:58:02	snort[37407]: Search-Method = AC-Full-Q
                  Jul 6 12:58:02	snort[37407]: Search-Method = AC-Full-Q
                  Jul 6 12:58:02	snort[37407]: Detection:
                  Jul 6 12:58:02	snort[37407]: Detection:
                  Jul 6 12:58:02	snort[37407]:
                  Jul 6 12:58:02	snort[37407]:
                  Jul 6 12:58:02	snort[37407]: [ 6503:6504 ]
                  Jul 6 12:58:02	snort[37407]: [ 6503:6504 ]
                  Jul 6 12:58:02	snort[37407]: PortVar 'DCERPC_BRIGHTSTORE' defined :
                  Jul 6 12:58:02	snort[37407]: PortVar 'DCERPC_BRIGHTSTORE' defined :
                  

                  /usr/local/lib/snort/dynamicrules is empty -> have installed rules before!

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                  • M Offline
                    mschiek01
                    last edited by

                    On the interface IF settings tab at the bottom is there anything in the advanced configuration box?

                    Also is this a i386 or a amd64 build

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                    • _ Offline
                      _igor_
                      last edited by

                      @mschiek01: Nop, nothing in there. Redownloaded the rules, but same as before: pidfile empty:

                      /usr/local/etc/rc.d/snort.sh start
                      pgrep: Pidfile `/var/run/snort_pppoe016197.pid' is empty

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                      • M Offline
                        mschiek01
                        last edited by

                        You didn't say if this is a 64 of 386 build.  If it is a 64 build make sure you did not select any .so "shared object rules" on the categories tab of the interface.

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                        • _ Offline
                          _igor_
                          last edited by

                          oh, sorry. Its amd64 and i have no .so rules activated. Looked twice to be sure.

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                          • M Offline
                            mschiek01
                            last edited by

                            You can try this:
                            Edit this file
                            /usr/local/etc/snort/snort.conf

                            and comment out line #254 'dynamicengine /usr/local/lib/snort_dynamicengine/libsf_engine.so'

                            then see if it starts.

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                            • _ Offline
                              _igor_
                              last edited by

                              Did that, but same message appears:

                              /usr/local/etc/rc.d/snort.sh start
                              pgrep: Pidfile `/var/run/snort_pppoe016197.pid' is empty

                              :(((

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                              • M Offline
                                mschiek01
                                last edited by

                                can you try to start snort from the gui and then post your system log?

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                                • E Offline
                                  eri--
                                  last edited by

                                  The pidfile empty message is a normal error just put the system log here to know what is happening to your setup.

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                                  • _ Offline
                                    _igor_
                                    last edited by

                                    Found it!

                                    The system-log had additional enties which were not shown in the gui:

                                    Jul  6 20:53:13 pf snort[53576]: Initializing rule chains…
                                    Jul  6 20:53:14 pf snort[53576]: FATAL ERROR: /usr/local/etc/snort/snort_16197_pppoe0/rules/emerging-attack_response.rules(224) Please enable the HTTP Inspect preprocessor before using the http content modifiers
                                    Jul  6 20:53:14 pf snort[53576]: FATAL ERROR: /usr/local/etc/snort/snort_16197_pppoe0/rules/emerging-attack_response.rules(224) Please enable the HTTP Inspect preprocessor before using the http content modifiers
                                    Jul  6 20:53:14 pf SnortStartup[53705]: Interface Rule START for 0_16197_pppoe0…
                                    tory.

                                    Enabling the http-inspection resolved the problem. Thanks for your help!

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                                    • N Offline
                                      NetworkNubbin
                                      last edited by

                                      @mschiek01:

                                      You can try this:
                                      Edit this file
                                      /usr/local/etc/snort/snort.conf

                                      and comment out line #254 'dynamicengine /usr/local/lib/snort_dynamicengine/libsf_engine.so'

                                      then see if it starts.

                                      Didn't seem to work:

                                      
                                       249 # path to base preprocessor engine
                                       250 #dynamicengine /usr/local/lib/snort_dynamicengine/libsf_engine.so
                                      
                                      

                                      Still getting the same old
                                      Jul 6 16:52:36 snort[2491]: FATAL ERROR: Failed to initialize dynamic preprocessor: SF_DCERPC version 1.1.5 (-1)
                                      Jul 6 16:52:36 snort[2491]: FATAL ERROR: Failed to initialize dynamic preprocessor: SF_DCERPC version 1.1.5 (-1)

                                      And yes the DCE/RPC preprocessor is enabled, unlike my wanton thread hijacker :)

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                                      • E Offline
                                        eri--
                                        last edited by

                                        Please provide system log to see what is wrong.

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                                        • M Offline
                                          mschiek01
                                          last edited by

                                          @NetworkNubbin:

                                          @mschiek01:

                                          You can try this:
                                          Edit this file
                                          /usr/local/etc/snort/snort.conf

                                          and comment out line #254 'dynamicengine /usr/local/lib/snort_dynamicengine/libsf_engine.so'

                                          then see if it starts.

                                          Didn't seem to work:

                                             
                                           249 # path to base preprocessor engine
                                           250 #dynamicengine /usr/local/lib/snort_dynamicengine/libsf_engine.so
                                          
                                          

                                          Still getting the same old
                                          Jul 6 16:52:36 snort[2491]: FATAL ERROR: Failed to initialize dynamic preprocessor: SF_DCERPC version 1.1.5 (-1)
                                          Jul 6 16:52:36 snort[2491]: FATAL ERROR: Failed to initialize dynamic preprocessor: SF_DCERPC version 1.1.5 (-1)

                                          And yes the DCE/RPC preprocessor is enabled, unlike my wanton thread hijacker :)

                                          Uninstall snort

                                          Delete /usr/local/lib/snort/*

                                          Reinstall snort

                                          Start snort and post the system log if it does not start.

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                                          • D Offline
                                            dwood
                                            last edited by

                                            With a clean AMD64 install (did not save settings, uninstalled, executed "find /* | grep -i snort | xargs rm -rv" command, rebooted) and valid oinkcode, a rules update is attempted.  The Updates TAB indicates that no emergingthreats.net or pfsense.org signatures are installed.  The "Install Emergingthreats rules" option is however toggled on under the Global Settings Tab.  During an update, the status message is that Emerging Threats rules are up to date..although they are not present in the interface Category Tab.

                                            Unlike the previous attempt (clean install, but had "save settings" toggled on from 2.2.2), this time Snort 2.2.3 does start successfully with all rules (except emergingthreats which as described above are not there) enabled.

                                            The issue of Alert Description displaying "N/A" remains..not sure if it's on a fix matrix or not..

                                            Cheers,
                                            Dennis.

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