Server crash again....

one of my server is going to crash again every few hours.
When this happens i have the following on the logs:
Can anyone tell me to what error is this refering to?
the is 1 specific IP address (213.189.67.16) but this error comes form other IP's also...

thanks
---------
- System Log:
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=69.61.59.22 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=19457 DF PROTO=TCP SPT=1601 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=29439 OPT (020405B401010402)
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.01 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=19708 DF PROTO=TCP SPT=1601 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.02 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=20327 DF PROTO=TCP SPT=2025 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=34559 OPT (020405B401010402)
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.02 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=20568 DF PROTO=TCP SPT=2025 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.03 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=21181 DF PROTO=TCP SPT=2441 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=34559 OPT (020405B401010402)
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.03 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=21419 DF PROTO=TCP SPT=2441 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=34559 OPT (020405B401010402)
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.04 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=22054 DF PROTO=TCP SPT=2861 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.04 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=22304 DF PROTO=TCP SPT=2861 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:37 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.05 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=22924 DF PROTO=TCP SPT=3276 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:38 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.05 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=23164 DF PROTO=TCP SPT=3276 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:40 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.06 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=23823 DF PROTO=TCP SPT=3696 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:40 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.06 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=24063 DF PROTO=TCP SPT=3696 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:40 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.07 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=24722 DF PROTO=TCP SPT=4120 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=0 OPT (020405B401010402)
Jan 21 17:24:39 server wall[10300]: wall: user root broadcasted 1 lines (58 chars)
Jan 21 17:24:41 server kernel: ** IN_TCP DROP ** IN=eth0 OUT= MAC=00:01:02:9b:3f:86:00:02:85:0d:7c:80:08:00 SRC=213.189.67.16 DST=00.00.00.07 LEN=48 TOS=0x04 PREC=0x00 TTL=114 ID=24945 DF PROTO=TCP SPT=4120 DPT=15118 WINDOW=8760 RES=0x00 SYN URGP=34559 OPT (020405B401010402)

 

 

 

 

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