Snort inilization failure



  • @yoda715:

    I am running 1 gig as well. I know its not shutting down due to low ram. When snort is running my memory usage stays around 55-60%. At no point do I see my memory reach 80, 90, or 100%. I have swap enabled and it's always at 0%. When snort is not running my mem usage is 5-6%.

    I am not trying to insult you Scott nor do I doubt your intelligence on this issue, but I can say this with 99% certainty: The issue is something other than running out of ram. :)

    So basically Snort is not starting up on reboots, and on dhcp renewal.

    Do you want me to send you a copy of my config Scott, to see if you can get this to duplicate?

    All the above applies to me too, as does the offer of configs and any other help I can give :)



  • I've noticed something in my testing. It seems that whatever is causing snort to fail on bootup the first time, it's towards the end of the bootup process.



  • I take it the offer of configs and logs is not wanted?

    Would a donation help to get this looked at?



  • Try uninstalling and reinstalling the package.  I just uploaded a re compiled version.



  • Still experiencing the same issue. Had to click save after reinstall and reboot to get Snort to startup. Any luck PC_Arcade?



  • You may also want to upgrade to http://www.pfsense.com/~sullrich/1.0.1-SNAPSHOT-11-19-2006/

    6.2-RC1



  • I have tested the snort package under 1.01 about a week ago and it ran fine for me, although I only ran it for about a couple of days.  Not to throw out the obvious here, but if pc_arcade had it running under 256 but not under a gig, it sounds like there is a good possibility that there is possibly some bad ram in the mix. I'd run a checkmem on it and see what happens.



  • @sullrich:

    You may also want to upgrade to http://www.pfsense.com/~sullrich/1.0.1-SNAPSHOT-11-19-2006/

    6.2-RC1

    Will do. Does that need to be a fresh install or will an upgrade be ok?



  • @Justinw:

    I have tested the snort package under 1.01 about a week ago and it ran fine for me, although I only ran it for about a couple of days.  Not to throw out the obvious here, but if pc_arcade had it running under 256 but not under a gig, it sounds like there is a good possibility that there is possibly some bad ram in the mix. I'd run a checkmem on it and see what happens.

    Doubt it. If it was a bad batch of Memory it wouldn't run at all.



  • @yoda715:

    @sullrich:

    You may also want to upgrade to http://www.pfsense.com/~sullrich/1.0.1-SNAPSHOT-11-19-2006/

    6.2-RC1

    Will do. Does that need to be a fresh install or will an upgrade be ok?

    Upgrade should be ok.



  • No go. Snort initialization is stuck in an infinite loop. It will initialize, reach about 90% bootup complete, terminate, and start over. I'm counting five times so far that it has started to initialize, failed, restarted initialization, and it keeps failing over and over.



  • Clicking Save in snort settings stopped the loop and successfully booted Snort.



  • Hi, Just 'd like to ask what's the status here with the issue ?

    my pfsense is 1.0.1
    Last time it was with 1.0-RC3 when snort caused network problem
    and it was quite a headache to try to find out what's wrong till
    we have to take off snort all together.

    I assume then 6.2 RC1 ( Scott's earlier link ) + snort works alright ?

    I have more than 1 G ram for pfsense.

    Cheers,



  • Snort works. Its just the initialization process I am experiencing issues with. I don't believe everyone is experiencing it. Once snort initializes successfully it works great. You can run a port scan on your firewall and you will see it in the logs.



  • @yoda715:

    Snort works. Its just the initialization process I am experiencing issues with. I don't believe everyone is experiencing it. Once snort initializes successfully it works great. You can run a port scan on your firewall and you will see it in the logs.

    aah Ok, thanks yoda715

    gl for that



  • @yoda715:

    Still experiencing the same issue. Had to click save after reinstall and reboot to get Snort to startup. Any luck PC_Arcade?

    Same behaviour with just the package update, I'll try the pfsense update later and report back



  • I didn't see any different behavior until I updated to the latest snapshot. Then snort would get stuck in an infinite initialization loop.



  • I'm loathe to install the newer build, because it looks like all it is doing is forcing a restart of snort and that will, as you point out, cause an infinite loop as there is a problem with the initialisation which causes it to bomb out.



  • @yoda715:

    I didn't see any different behavior until I updated to the latest snapshot. Then snort would get stuck in an infinite initialization loop.

    Thats funny.  I haven't changed anything…  All that the new image contains is FreeBSD 6.2.



  • I can confirm that under the new version, the results are exactly the same.

    After a while snort exits with a core dump (it doesn't reload)



  • I can still provide a configuration file to help out, if you wish .



  • I had the same problem for awhile….snort always ending in a core dump. (I have 1 gig of ram installed)...What finally did the trick for me was switching from ac sparsebands to just acs.......no more core dumping. Has been up for the past week with no problems.



  • @ColdFusion:

    I had the same problem for awhile….snort always ending in a core dump. (I have 1 gig of ram installed)...What finally did the trick for me was switching from ac sparsebands to just acs.......no more core dumping. Has been up for the past week with no problems.

    ;D …and after all that, it looks like acs is the key. certainly been up now for longer than normal, AND it's consuming less memory too



  • I changed my snort performance to acs as well. I am still seeing snort failing to bootup completely immediately after a reboot. However, it will start the initialization process over once it fails. On the second initialization, Snort will successfully boot up.

    So I've done some more testing.

    Using the performance modes ac, ac-std, or ac-sparebands I get snort initialization failures and core dumps when I reboot. I cannot get snort to boot until I click save in settings.

    If I use acs or lowmem, they appear to boot up fine.

    Question is, why?



  • It's funny I couldn't figure it either, I tried them all but acs worked consistently well. I'm using about 10% less ram also. The alerts are also triggering consistently better also. I'm running snort+squid, I wonder if all this is related to squid. Did anybody have this problem(core dumping) with just snort installed and not squid?



  • Yep, me. I've only been running SNORT.

    Although I will add Squid as soon as it becomes available again.

    acs uses significantly less memory for me too and also works as intended. Thank coldfusion



  • @yoda715:

    Question is, why?

    No idea.  This is now a SNORT issue and this should be asked on their lists.



  • I think the latest version of SNORT (2.6.1.1) fixes this issue



  • Not sure if this fixes our issue.

    This is the issue solved in 2.6.1.1: "Fix problem with snort using high CPU and reprocessing the same rebuilt packets at session end or ACK in middle of packet when there are gaps in the packet sequence."



  • certainly seems to :)

    Running in sparsebands now, only been up for ~5 minutes, but that's ~3 more than I've managed before



  • I updated to the 2.6.1.1 versions and now I cant even get Snort to boot up on any performance setting. I am getting brand new errors now:

    Nov 24 14:53:39 snort2c[1571]: unable to open alertfile - exit
    Nov 24 14:53:39 snort2c[1571]: unable to open alertfile - exit
    Nov 24 14:53:39 snort2c[1571]: snort2c running in daemon mode pid: 1571
    Nov 24 14:53:39 snort2c[1571]: snort2c running in daemon mode pid: 1571

    I am running the 1.0.1-SNAPSHOT-11-24-2006



  • Oh bugger.  I'll check it out a bit later tonite.



  • Thanks Scott.



  • Didn't do that for me, BUT it also didn't trigger any alerts



  • Try running a port scan from http://www.grc.com. You should see it appear in alert as a ping.



  • I'm pretty much screwed with the same alert after I upgraded SNORT. Now the service will not start and stay running.



  • Scott, I see where you reverted snort back to the 2.6.0.2.5. I reverted back to that version and I'm still getting the same error. The trouble must be in the latest snapshot.



  • @yoda715:

    Try running a port scan from http://www.grc.com. You should see it appear in alert as a ping.

    I know, and it doesn't.

    I've reverted back to the older version and it still doesn't raise any alerts at all  ???



  • What snapshot are you running? I'm thinking it has something to do with that since I too reverted back to the older version of snort.



  • Version 1.01


Log in to reply