Is that a fake client connecting with invalid parameters? (I have found "Unreal engine basic client and Fake Players DoS 0.1.1 by Luigi Auriemma" for example on my web based search.)Open MyLevel Sun Mar 18 00:32:50 2018 194.187.249.30:23607
NotifyAcceptingChannel Control 0 server Level MH-ATAA0Plus.MyLevel: Accepted
Level server received: HELLO REVISION=0 MINVER=432 VER=451
Level server received: LOGIN RESPONSE=-1302142376 URL=?Class=%n%n%n%n%s%s%n%n%s%s
Client passed challenge
Login request: ?Class=%n%n%n%n%s%s%n%n%s%s
Level server received: PETE PKT=1 PKG=1
Level server received: REPEAT
Level server received: CRITOBJCNT 1
Level server received: JOIN
Join request: ?Class=%n%n%n%n%s%s%n%n%s%s
Failed to load 'NULL': Can't resolve package name
Signal: SIGSEGV [segmentation fault]
Aborting.
Exiting.
Name subsystem shut down
Allocation checking disabled
If it is a DoS attack, how to fend off it? Does "ServerCrashFix_v10" help?