Monitoring connections on OpenBSD hosts

I received a comment from a reader regarding the trafshow utility. Trafshow is definitely a cool piece of software, and I use it one some of my Linux hosts. On my OpenBSD systems, I have been using the pktstat utility, which provides connection statistics for all traffic on the system:

$ pktstat

interface: sis0    total: 13.8Mb (1m34s)
cur: 147.0k (72%) [115.5k 39.4k 14.5k] min: 94.4k max: 202.3k avg: 145.6k bps

   bps    %      b desc                                                                     
134.4k  66%  12.9M tcp 192.168.1.10:8010 <-> 192.168.1.100:58720
 105.6   0%  528.0 tcp 192.168.1.10:www <-> 192.168.1.100:54947
 12.5k   6%  62.5k tcp 192.168.1.10:www <-> 192.168.1.100:64475
                   - 200 GET /index.html

Since trafshow contains numerous features that aren’t present in pktstat, I reckon I should upgrade my OpenBSD image to use trafshow. Thanks for the comment!

1 thought on “Monitoring connections on OpenBSD hosts”

  1. Hello –

    Thought just getting my feet wet w/ OpenBSD, I’ve always been partial to iftop on my Linux server… seems similar, but iftop doesn’t seem to show UDP,..

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