我有一台 TP-Link Archer C7 路由器和一台安装了 UFW 的 Debian 9.4 服务器。我查看了 UFW 日志,发现我的路由器每 30 秒向服务器的 49125 端口发送一次请求。我不知道该如何诊断这个问题。
我的路由器是 192.168.1.1,服务器是 192.168.1.100。以下是 UFW 日志文件的摘录。有人知道这可能是什么吗?
Mar 23 22:28:12 mydebianserver kernel: [ 769.900902] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:28:32 mydebianserver kernel: [ 789.900838] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:28:52 mydebianserver kernel: [ 809.900581] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:29:12 mydebianserver kernel: [ 829.900395] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:29:32 mydebianserver kernel: [ 849.900548] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:29:52 mydebianserver kernel: [ 869.900169] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:30:13 mydebianserver kernel: [ 890.428246] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:30:32 mydebianserver kernel: [ 909.899898] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:30:52 mydebianserver kernel: [ 929.899368] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:31:12 mydebianserver kernel: [ 949.899450] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:31:32 mydebianserver kernel: [ 969.899535] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:31:52 mydebianserver kernel: [ 989.899162] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:32:12 mydebianserver kernel: [ 1009.899015] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267
Mar 23 22:32:32 mydebianserver kernel: [ 1029.898800] [UFW BLOCK] IN=eno1 OUT= MAC=xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx SRC=192.168.1.1 DST=192.168.1.100 LEN=287 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=UDP SPT=1900 DPT=49125 LEN=267