XF 1.2 Xenforo 1.2 problem

[Princ3]

I installed the 1.2 version on my server. Since then when I get almost 4.000 visitors online, I cannot access my sites anymore. Everything on the server is ok, I don't get any errors but somehow I can't access my websites. After 20 hours or more, they came back and when I get almost 4.000 visitors online, the same thing happens. My community software was from www.mybb.com but when I changed to xenforo those things started to happen. I dont know what to do. I really like the new software.

 

[Princ3]

service httpd status

httpd (pid 15954 15953 15952 15951 15950 15949 15948 15947 15946 15945 15944 15943 15942 15941 15940 15939 15938 15937 15936 15935 15934 15933 15932 15931 15930 15929 15928 15927 15926 15925 15924 15923 15922 15921 15920 15919 15918 15917 15916 15915 15914 15913 15912 15911 15910 15909 15908 15907 15906 15905 15904 15903 15902 15901 15900 15899 15898 15897 15896 15895 15894 15893 15892 15891 15890 15889 15888 15887 15886 15885 15884 15883 15882 15881 15880 15879 15878 15877 15876 15875 15874 15873 15872 15871 15870 15869 15868 15867 15866 15865 15864 15863 15862 15861 15860 15859 15858 15857 15856 15855 15854 15853 15852 15851 15850 15849 15848 15847 15846 15845 15844 15843 15842 15841 15840 15839 15838 15837 15836 15835 15834 15833 15832 15831 15830 15829 15828 15827 15826 15825 15824 15823 15822 15821 15820 15819 15818 15817 15816 15815 15814 15813 15812 15811 15810 15809 15808 15807 15806 15805 15804 15803 15802 15801 15800 15799 15798 15797 15796 15795 15794 15793 15792 15791 15790 15789 15788 15787 15786 15785 15784 15783 15782 15781 15780 15779 15778 15777 15776 15775 15774 15773 15772 15771 15770 15769 15768 15767 15766 15765 15763 15762 15761 15760 15759 15758 15757 15756 15755 15754 15753 15752 15751 15750 15749 15748 15747 15746 15745 15744 15743 15742 15741 15740 15739 15738 15737 15736 15735 15734 15733 15732 15682 15681 15680 15679 15678 15677 15676 15675 15674 15673 15672 15671 15670 15669 15668 15667 15666 15665 15664 15663 15662 15661 15660 15659 15658 15657 15656 15655 15654 15653 15652 15651 15629 15628 15627 15626 15625 15624 15623 15622 15621 15620 15619 15618 15617 15616 15615 15614 15613 15612 15611 15610 15609 15608 15607 15606 15605 15604 15603 15602 15601 15600 15599 15598 15597 15596 15595 15594 15593 15592 15591 15590 15589 15588 15587 15586 15585 15584 15583 15582 15581 15580 15579 15578 15577 15576 15575 15574 15573 15572 15571 15570 15569 15568 15567 15566 15565 15564 15563 15562 15561 15560 15559 15558 15557 15556 15555 15554 15553 15552 15551 15550 15549 15548 15547 15546 15545 15544 15543 15542 15541 15540 15539 15538 15537 15536 15535 15534 15533 15532 15531 15530 15529 15528 15527 15526 15525 15524 15523 15522 15521 15520 15519 15518 15517 15516 15515 15514 15513 15512 15511 15510 15509 15508 15507 15506 15505 15504 15503 15502 15501 15500 15499 15498 15497 15496 15495 15494 15493 15492 15491 15490 15489 15488 15487 15486 15485 15484 15483 15482 15481 15480 15479 15478 15477 15476 15475 15474 15473 15472 15471 15470 15469 15468 15467 15466 15465 15464 15463 15462 15461 15460 15459 15458 15457 15456 15455 15454 15453 15452 15451 15450 15449 15448 15447 15446 15445 15444 15443 15442 15441 15440 15439 15438 15437 15436 15435 15434 15427) is running...

service mysqld status

 SUCCESS! MySQL running (15721)

 

[Princ3]

Mem: 32840060k total, 28753696k used, 4086364k free, 958052k buffers

I saw this. I dont understand how am I using 28 gbs of the 32 I have

 

[Jeremy]

You may want to ask your host if they notice anything that could be the cause of this.

 

[Moshe1010]

Do you have a firewall on your server? csf or something similar to that?
In directadmin you can usually see it at the bottom. If yes, try to disable it.