Such known tools like iftop/iptraf display network I/O per interface and per connection. Is there a way to see network I/O statistics per process?
-
unix.stackexchange.com/questions/6908/… | superuser.com/questions/189128/…Ciro Santilli OurBigBook.com– Ciro Santilli OurBigBook.com2016-05-26 20:05:22 +00:00Commented May 26, 2016 at 20:05
Add a comment
|
2 Answers
nethogs looks like it will do what you want.
EDIT: I needed to install ncurses-devel, libpcap and libpcap-devel to build.
-
1@yag there is no need to add "EDIT" to the post. We can already see the history of what changed.tshepang– tshepang2016-05-27 14:03:07 +00:00Commented May 27, 2016 at 14:03
-
@Tshepang I reviewed your edit, I kept the updated link you did but I kept the edit text, as for me it added value, like your edit too.2016-05-27 14:22:34 +00:00Commented May 27, 2016 at 14:22
-
@yagmoth555 I mean why keep "EDIT" in the post? We have history to show what has been edited, so there is no need to mention that "text that follows is an edit".tshepang– tshepang2016-05-27 15:36:47 +00:00Commented May 27, 2016 at 15:36
-
@Tshepang Oh, Check your edit, you removed the entire line surely by error then, that why I re-edited to keep the line2016-05-27 15:56:03 +00:00Commented May 27, 2016 at 15:56
-
@yagmoth555 it was deliberate, and I left the Comment that explains whytshepang– tshepang2016-05-27 22:32:21 +00:00Commented May 27, 2016 at 22:32
To find what connections are associated with each process, use lsof. For example:
lsof | grep TCP
That will give you a list of connections, like this:
bash 10887 luke 3u IPv4 44638801 0t0 TCP littleyerry.example.com:55212->barista.example.com:ldap (ESTABLISHED)
bash 10913 luke 3u IPv4 44638905 0t0 TCP littleyerry.example.com:55216->barista.example.com:ldap (ESTABLISHED)
ssh 10935 luke 3u IPv4 44639001 0t0 TCP littleyerry.example.com:55219->barista.example.com:ldap (ESTABLISHED)
ssh 10935 luke 4u IPv4 44639008 0t0 TCP littleyerry.example.com:59459->launchpad.example.com:ssh (ESTABLISHED)
bash 10938 luke 3u IPv4 44639107 0t0 TCP littleyerry.example.com:55221->barista.example.com:ldap (ESTABLISHED)
From there, you should be able to find out about each connection individually using the tools you mentioned (iftop, iptraf). You could build a small script to aggregate the specific data that you're looking for.
-
7
lsof -niTCPis equivalent but way faster, andlsof -niTCP -sTCP:ESTABLISHEDis showing the current connections.Meow– Meow2016-12-05 12:57:35 +00:00Commented Dec 5, 2016 at 12:57