phi*_*ppe 3 traffic port network-monitoring
我正在寻找一种工具来监控 CentOS 服务器的某些端口上的流量。在这台服务器上，每个服务都运行在 3000 到 3050 的端口上，我想比较这些服务的流量消耗；比如哪个是主要的谈话者/听众。
/proc/net/dev 只给出在网络接口上发送和接收的全局比特数，而不是在端口级别。
我发现的每个工具都在 goofing google 上提供接口级别（例如 eth0）的报告，而在端口级别没有，但毕竟我可能没有进行足够的搜索。
你们知道有什么方法可以做这样的事情吗？
[root@bespinwerks ~] # tcpdump -i eth0 port 80
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
12:23:39.478997 IP dw135-198-237-222.dhcpw.sest.example.com.3364 > bespinwerks.http: Flags [S], seq 388975608, win 65535, options [mss 1260,nop,wscale 1,nop,nop,sackOK], length 0
12:23:39.479043 IP bespinwerks.http > dw135-198-237-222.dhcpw.sest.example.com.3364: Flags [S.], seq 3273086762, ack 388975609, win 5840, options [mss 1460,nop,nop,sackOK,nop,wscale 6], length 0
12:23:39.479982 IP dw135-198-237-222.dhcpw.sest.example.com.3364 > bespinwerks.http: Flags [.], ack 1, win 32768, length 0
12:23:39.480543 IP dw135-198-237-222.dhcpw.sest.example.com.3364 > bespinwerks.http: Flags [P.], seq 1:595, ack 1, win 32768, length 594
12:23:39.480564 IP bespinwerks.http > dw135-198-237-222.dhcpw.sest.example.com.3364: Flags [.], ack 595, win 110, length 0
12:23:39.542350 IP bespinwerks.http > dw135-198-237-222.dhcpw.sest.example.com.3364: Flags [.], seq 1:3781, ack 595, win 110, length 3780
12:23:39.543976 IP dw135-198-237-222.dhcpw.sest.example.com.3364 > bespinwerks.http: Flags [.], ack 2521, win 32768, length 0
12:23:39.544007 IP bespinwerks.http > dw135-198-237-222.dhcpw.sest.example.com.3364: Flags [.], seq 3781:7561, ack 595, win 110, length 3780
12:23:39.544884 IP dw135-198-237-222.dhcpw.sest.example.com.3364 > bespinwerks.http: Flags [.], ack 3781, win 32768, length 0
编辑：重新阅读您的问题后，iftop可能是更好的选择：
12.5Kb 25.0Kb 37.5Kb 50.0Kb 62.5Kb
+----------------------------+-----------------------------+-----------------------------+-----------------------------+-----------------------------
bespinwerks:ssh => dw135-198-237-222.dhcpw.sest.example.com:dj-ilm 1.48Kb 1.88Kb 2.08Kb
<= 160b 160b 177b
192.168.1.255:netbios-dgm => STATION:netbios-dgm 0b 0b 0b
<= 0b 194b 51b
192.168.1.255:17500 => rm-macbook:17500 0b 0b 0b
<= 0b 109b 57b
255.255.255.255:17500 => rm-macbook:17500 0b 0b 0b
<= 0b 109b 57b
255.255.255.255:17500 => GACDTL05RX7322:17500 0b 0b 0b
<= 0b 0b 116b
bespinwerks:41307 => bespin:domain 0b 0b 16b
<= 0b 0b 36b
bespinwerks:39407 => bespin:domain 0b 0b 15b
<= 0b 0b 21b
bespinwerks:44091 => bespin:domain 0b 0b 15b
<= 0b 0b 20b
bespinwerks:44738 => bespin:domain 0b 0b 15b
<= 0b 0b 19b
bespinwerks:59540 => bespin:domain 0b 0b 16b
<= 0b 0b 16b
bespinwerks:49364 => bespin:domain 0b 0b 15b
<= 0b 0b 15b
192.168.1.255:17500 => STATION:17500 0b 0b 0b
<= 0b 0b 29b