Chanel crash

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  1. #1
    Registered ciclope is online now
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    May 2020 Join Date
    22Posts

    Chanel crash

    Chanel crash
    Hello everyone, I'm having difficulties with my channels, a few times a week my channels fall, one by one, as if it were some kind of attack.

    The log I have of the channel crash is this:

    Code:
    ACE_ASSERT: file Game/Migration2.cpp, line 67 assertion failed for 'pGameMgr == pMobsCtx->pBaseGameMgr'.Aborting...
    Does anyone know how to solve this problem/security breach?

    Thank you!


  2. #2
    Member gamerxdev is offline
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    Aug 2019 Join Date
    46Posts

    Re: Chanel crash

    Channel disconnect are happening mostly because of this reasons:

    1. Bug dungeon boss/mobs.
    - It is happening when player hit the boss or mobs inside the dungeon or counterwise. It takes me 1 whole day to figure out which boss is causing that channel crash. On my case it's the last boss on B3F. (You need to figure it out on the client you are using)

    2. Sending invalid packets.
    - They are sending invalid packets into your IP and channel ports that is causing it to disconnect. On this case you need to download any tool available that can capture packets or you can simply use this command on your linux:

    yum/apt install tcpdumptcpdump -n -s0 -vv -A

    Here for disabled dns/port resolution: tcpdump -AnnvvvS

    To use it only in a specific port: tcpdump port 38121 -n -s0 -vv -A


    If you want to save the output to a file to read with wireshark for example then add the -w parameter with file name afterwards It'll be in the pcap format which wireshark can read.

    Example: tcpdump port 38121 -n -s0 -vv -A -w port38121.pcap

    Then Download it to your computer and open it with wireshark.

    Your tcpdump needs to be running and active when the channel crash happened to show those specific packets/packet length that is causing the crashing of your channels. You can block those packets now and it will fix your problem.

    If you will follow and understand this solutions carefully, It will surely fix your problem 100%. Trust me as i've been in your situation few years ago and I managed to defend my server from those devil server attackers.

    PS: To save hard disk space, You can delete logs every after 30 minutes.

    I hope that I helped you with this information. If you do not understand packets or if you personally need help on blocking it, just let me know and I will be glad to help. Good luck!
    Last edited by gamerxdev; 4 Weeks Ago at 08:42 PM.

  3. #3
    Registered ciclope is online now
    MemberRank
    May 2020 Join Date
    22Posts

    Re: Chanel crash

    Quote Originally Posted by gamerxdev View Post
    Channel disconnect are happening mostly because of this reasons:

    1. Bug dungeon boss/mobs.
    - It is happening when player hit the boss or mobs inside the dungeon or counterwise. It takes me 1 whole day to figure out which boss is causing that channel crash. On my case it's the last boss on B3F. (You need to figure it out on the client you are using)

    2. Sending invalid packets.
    - They are sending invalid packets into your IP and channel ports that is causing it to disconnect. On this case you need to download any tool available that can capture packets or you can simply use this command on your linux:

    yum/apt install tcpdumptcpdump -n -s0 -vv -A

    Here for disabled dns/port resolution:tcpdump -AnnvvvS

    To use it only in a specific port:tcpdump port 38121 -n -s0 -vv -A


    If you want to save the output to a file to read with wireshark for example then add the -w parameter with file name afterwardsIt'll be in the pcap format which wireshark can read.

    Example: tcpdump port 38121 -n -s0 -vv -A -w port38121.pcap

    Then Download it to your computer and open it with wireshark.

    Your tcpdump needs to be running and active when the channel crash happened to show those specific packets/packet length that is causing the crashing of your channels. You can block those packets now and it will fix your problem.

    If you will follow and understand this solutions carefully, It will sure fix your problem 100%. Trust me as i've been in your situation few years ago and I managed to defend my server from those devil server attackers.

    PS: To save hard disk space, You can delete logs every after 30 minutes.

    I hope that I helped you with this information. If you do not understand packets or if you personally need help on blocking it, just let me know and I will be glad to help. Good luck!
    Thank you very much for the detailed answer, it helped a lot!

  4. #4
    Member gamerxdev is offline
    MemberRank
    Aug 2019 Join Date
    46Posts

    Re: Chanel crash

    Quote Originally Posted by ciclope View Post
    Thank you very much for the detailed answer, it helped a lot!

    You're welcome. Glad that I helped.

    Good luck!

  5. #5
    Registered george1989 is offline
    MemberRank
    Sep 2020 Join Date
    5Posts

    Re: Chanel crash

    thank u gamerxdev fixed my issue with your tutorial

    @moderators it will help other game owners if you put it on tutorial section
    Last edited by george1989; 1 Week Ago at 03:19 AM.



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