回答:
あなたはiptablesを使用してそれを行うことができます
iptables -I INPUT -p tcp -m tcp --dport 5901 -m state --state NEW -j LOG --log-level 1 --log-prefix "New Connection "
これはにポート5901上の新しいTCP接続をログに記録する/var/log/syslog
と/var/log/kernel.log
、次のように
12月12日07:52:48 u-10-04カーネル:[591690.935432]新しい接続IN = eth0 OUT = MAC = 00:0c:29:2e:78:f1:00:0c:29:eb:43:22: 08:00 SRC = 192.168.254.181 DST = 192.168.254.196 LEN = 60 TOS = 0x10 PREC = 0x00 TTL = 64 ID = 40815 DF PROTO = TCP SPT = 36972 DPT = 5901 WINDOW = 14600 RES = 0x00 SYN URGP = 0
netstat
オプション-v、-n、-t、-aで使用できます
例
netstat -anp | :8080 | grep ESTABLISHED | wc -l
OR
root@user:/home# netstat -vatn
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 192.168.1.174:8080 192.168.1.126:53021 ESTABLISHED
tcp 0 0 192.168.1.174:8080 192.168.1.126:32950 ESTABLISHED
tcp 0 0 192.168.1.174:8080 192.168.1.126:39634 ESTABLISHED
tcp 0 0 192.168.1.174:8080 192.168.1.126:59300 ESTABLISHED
tcp 0 0 192.168.1.174:8080 192.168.1.188:49551 ESTABLISHED
tcp 0 0 192.168.1.174:9090 192.168.1.126:37865 ESTABLISHED
tcp 0 0 192.168.1.174:9090 192.168.1.188:51411 ESTABLISHED
tcp 0 0 192.168.1.174:8080 192.168.1.126:50824 ESTABLISHED