我查看了 /var/log 目录，发现 conntrackd-stats.log 文件有 150Mb，每秒都会收到一条新条目。日志如下所示。我是不是在不知不觉中托管了一些恶意文件？
Sat Nov 12 19:07:07 2016 tcp 6 src=::1 dst=::1 sport=54208 dport=4101 [UNREPLIED] src=::1 dst=::1 sport=4101 dport=54208
Sat Nov 12 19:07:07 2016 tcp 6 src=::1 dst=::1 sport=54212 dport=4101 [UNREPLIED] src=::1 dst=::1 sport=4101 dport=54212
Sat Nov 12 19:07:08 2016 tcp 6 src=::1 dst=::1 sport=54216 dport=4101 [UNREPLIED] src=::1 dst=::1 sport=4101 dport=54216
Sat Nov 12 19:07:08 2016 tcp 6 src=::1 dst=::1 sport=54220 dport=4101 [UNREPLIED] src=::1 dst=::1 sport=4101 dport=54220
Sat Nov 12 19:07:08 2016 tcp 6 src=::1 dst=::1 sport=54224 dport=4101 [UNREPLIED] src=::1 dst=::1 sport=4101 dport=54224