root@terae:/var/log/kernel# grep 1723 *
current:Sep  5 12:36:46 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.236.184 DST=81.175.202.250 LEN=60 TOS=0x00 PREC=0x00 TTL=59 ID=285 DF PROTO=TCP SPT=36818 DPT=1723 WINDOW=5840 RES=0x00 SYN URGP=0
current:Sep  5 12:36:46 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.236.184 DST=81.175.202.250 LEN=52 TOS=0x00 PREC=0x00 TTL=59 ID=286 DF PROTO=TCP SPT=36818 DPT=1723 WINDOW=1460 RES=0x00 ACK URGP=0
current:Sep  5 12:36:46 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.236.184 DST=81.175.202.250 LEN=208 TOS=0x00 PREC=0x00 TTL=59 ID=287 DF PROTO=TCP SPT=36818 DPT=1723 WINDOW=1460 RES=0x00 ACK PSH URGP=0
current:Sep  5 12:36:46 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.236.184 DST=81.175.202.250 LEN=52 TOS=0x00 PREC=0x00 TTL=59 ID=288 DF PROTO=TCP SPT=36818 DPT=1723 WINDOW=1728 RES=0x00 ACK URGP=0
current:Sep  5 12:36:47 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.236.184 DST=81.175.202.250 LEN=220 TOS=0x00 PREC=0x00 TTL=59 ID=289 DF PROTO=TCP SPT=36818 DPT=1723 WINDOW=1728 RES=0x00 ACK PSH URGP=0
current:Sep  5 12:36:47 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.236.184 DST=81.175.202.250 LEN=52 TOS=0x00 PREC=0x00 TTL=59 ID=290 DF PROTO=TCP SPT=36818 DPT=1723 WINDOW=1728 RES=0x00 ACK URGP=0
current:Sep  5 12:36:47 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.236.184 DST=81.175.202.250 LEN=68 TOS=0x00 PREC=0x00 TTL=59 ID=291 DF PROTO=TCP SPT=36818 DPT=1723 WINDOW=1728 RES=0x00 ACK PSH URGP=0
current:Sep  5 12:36:47 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.236.184 DST=81.175.202.250 LEN=52 TOS=0x00 PREC=0x00 TTL=59 ID=292 DF PROTO=TCP SPT=36818 DPT=1723 WINDOW=1728 RES=0x00 ACK FIN URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:50 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=48 TOS=0x00 PREC=0x00 TTL=123 ID=43555 DF PROTO=TCP SPT=4004 DPT=1723 WINDOW=64240 RES=0x00 SYN URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:50 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=196 TOS=0x00 PREC=0x00 TTL=123 ID=43556 DF PROTO=TCP SPT=4004 DPT=1723 WINDOW=64240 RES=0x00 ACK PSH URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:50 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=208 TOS=0x00 PREC=0x00 TTL=123 ID=43560 DF PROTO=TCP SPT=4004 DPT=1723 WINDOW=64084 RES=0x00 ACK PSH URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:50 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=40 TOS=0x00 PREC=0x00 TTL=123 ID=43567 DF PROTO=TCP SPT=4004 DPT=1723 WINDOW=64052 RES=0x00 ACK FIN URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:52 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=48 TOS=0x00 PREC=0x00 TTL=123 ID=43595 DF PROTO=TCP SPT=4005 DPT=1723 WINDOW=64240 RES=0x00 SYN URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:52 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=196 TOS=0x00 PREC=0x00 TTL=123 ID=43602 DF PROTO=TCP SPT=4005 DPT=1723 WINDOW=64240log-2006-09-05-10:36:02:Sep  5 12:34:52 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=208 TOS=0x00 PREC=0x00 TTL=123 ID=43603 DF PROTO=TCP SPT=4005 DPT=1723 WINDOW=64084 RES=0x00 ACK PSH URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:53 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=40 TOS=0x00 PREC=0x00 TTL=123 ID=43604 DF PROTO=TCP SPT=4005 DPT=1723 WINDOW=64052 RES=0x00 ACK FIN URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:53 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=48 TOS=0x00 PREC=0x00 TTL=123 ID=43613 DF PROTO=TCP SPT=4006 DPT=1723 WINDOW=64240 RES=0x00 SYN URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:53 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=196 TOS=0x00 PREC=0x00 TTL=123 ID=43614 DF PROTO=TCP SPT=4006 DPT=1723 WINDOW=64240 RES=0x00 ACK PSH URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:53 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=208 TOS=0x00 PREC=0x00 TTL=123 ID=43615 DF PROTO=TCP SPT=4006 DPT=1723 WINDOW=64084 RES=0x00 ACK PSH URGP=0
log-2006-09-05-10:36:02:Sep  5 12:34:53 [kernel] IN=eth1 OUT= MAC=00:02:44:54:b3:29:00:90:1a:41:43:b7:08:00 SRC=81.175.235.252 DST=81.175.202.250 LEN=40 TOS=0x00 PREC=0x00 TTL=123 ID=43616 DF PROTO=TCP SPT=4006 DPT=1723 WINDOW=64052 RES=0x00 ACK FIN URGP=0
root@terae:/var/log/kernel# RES=0x00 ACK PSH URGP=0