What kind of attack is this ?
I saw a lot of entries like this in the /var/log/messages
Mar 27 01:12:44 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=217.218.249.31 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=52 ID=62256 PROTO=TCP SPT=48949 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:44 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=80.191.224.73 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=43 ID=23646 PROTO=TCP SPT=29465 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:45 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=82.132.123.142 DST=80.198.155.167 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=6598 DF PROTO=TCP SPT=4274 DPT=80 WINDOW=8760 RES=0x00 SYN URGP=0
Mar 27 01:12:50 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=81.12.78.91 DST=80.198.155.167 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=24799 DF PROTO=TCP SPT=2274 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:51 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=80.191.224.73 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=43 ID=43102 PROTO=TCP SPT=29465 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:51 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=82.132.123.142 DST=80.198.155.167 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=6636 DF PROTO=TCP SPT=4274 DPT=80 WINDOW=8760 RES=0x00 SYN URGP=0
Mar 27 01:12:51 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=80.191.224.73 DST=80.198.155.167 LEN=332 TOS=0x00 PREC=0x00 TTL=104 ID=573 DF PROTO=TCP SPT=1056 DPT=80 WINDOW=8474 RES=0x00 ACK PSH FIN URGP=0
Mar 27 01:12:53 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=80.78.146.2 DST=80.198.155.167 LEN=48 TOS=0x00 PREC=0x00 TTL=108 ID=57559 DF PROTO=TCP SPT=3220 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:54 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=217.218.249.31 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=52 ID=23857 PROTO=TCP SPT=45165 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:55 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=217.218.147.152 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=52 ID=48112 PROTO=TCP SPT=45333 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:56 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=80.78.146.2 DST=80.198.155.167 LEN=48 TOS=0x00 PREC=0x00 TTL=108 ID=57604 DF PROTO=TCP SPT=3220 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:56 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=217.218.249.31 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=52 ID=27953 PROTO=TCP SPT=48949 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:12:56 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=217.219.198.46 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=49 ID=13466 PROTO=TCP SPT=10366 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:13:01 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=81.12.78.91 DST=80.198.155.167 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=24952 DF PROTO=TCP SPT=2291 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:13:02 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=80.78.146.2 DST=80.198.155.167 LEN=48 TOS=0x00 PREC=0x00 TTL=108 ID=57679 DF PROTO=TCP SPT=3220 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:13:02 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=80.191.224.73 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=43 ID=61278 PROTO=TCP SPT=29465 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:13:03 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=62.220.97.76 DST=80.198.155.167 LEN=60 TOS=0x00 PREC=0x00 TTL=50 ID=19529 DF PROTO=TCP SPT=42142 DPT=80 WINDOW=5840 RES=0x00 SYN URGP=0
Mar 27 01:13:04 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=81.12.78.91 DST=80.198.155.167 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=25027 DF PROTO=TCP SPT=2291 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Mar 27 01:13:06 earth kernel: Rejected: IN=eth0 OUT= MAC=00:0a:e6:1c:bd:69:00:b0:c2:84:bc:80:08:00 SRC=217.219.198.46 DST=80.198.155.167 LEN=64 TOS=0x00 PREC=0x00 TTL=49 ID=17562 PROTO=TCP SPT=10773 DPT=80 WINDOW=16384 RES=0x00 SYN URGP=0
Thanks.
